Merge branch 'develop' into bugfix/repack_external_storage

14 files changed, 2133 insertions, 1105 deletions

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index c7888b8..15d10a7 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -25,24 +25,27 @@ set (TEST_LIB_HEADERS
     ${HDF5_TEST_SOURCE_DIR}/swmr_common.h
 )
 
-add_library (${HDF5_TEST_LIB_TARGET} STATIC ${TEST_LIB_SOURCES} ${TEST_LIB_HEADERS})
-target_include_directories(${HDF5_TEST_LIB_TARGET}
-    PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>"
-    INTERFACE "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/include>"
-)
-TARGET_C_PROPERTIES (${HDF5_TEST_LIB_TARGET} STATIC)
-target_link_libraries (${HDF5_TEST_LIB_TARGET}
-    PUBLIC ${LINK_LIBS} ${HDF5_LIB_TARGET}
-    PRIVATE $<$<PLATFORM_ID:Windows>:ws2_32.lib>
-)
-if (MINGW)
-  target_link_libraries (${HDF5_TEST_LIB_TARGET} PRIVATE "wsock32.lib")
+if (NOT ONLY_SHARED_LIBS)
+  add_library (${HDF5_TEST_LIB_TARGET} STATIC ${TEST_LIB_SOURCES} ${TEST_LIB_HEADERS})
+  target_include_directories (${HDF5_TEST_LIB_TARGET}
+      PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>"
+      INTERFACE "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/include>"
+  )
+  TARGET_C_PROPERTIES (${HDF5_TEST_LIB_TARGET} STATIC)
+  target_link_libraries (${HDF5_TEST_LIB_TARGET}
+      PUBLIC ${LINK_LIBS} ${HDF5_LIB_TARGET}
+      PRIVATE $<$<PLATFORM_ID:Windows>:ws2_32.lib>
+  )
+  if (MINGW)
+    target_link_libraries (${HDF5_TEST_LIB_TARGET} PRIVATE "wsock32.lib")
+  endif ()
+  H5_SET_LIB_OPTIONS (${HDF5_TEST_LIB_TARGET} ${HDF5_TEST_LIB_NAME} STATIC 0)
+  set_target_properties (${HDF5_TEST_LIB_TARGET} PROPERTIES FOLDER libraries/test)
 endif ()
-H5_SET_LIB_OPTIONS (${HDF5_TEST_LIB_TARGET} ${HDF5_TEST_LIB_NAME} STATIC 0)
 
 if (BUILD_SHARED_LIBS)
   add_library (${HDF5_TEST_LIBSH_TARGET} SHARED ${TEST_LIB_SOURCES} ${TEST_LIB_HEADERS})
-  target_include_directories(${HDF5_TEST_LIBSH_TARGET}
+  target_include_directories (${HDF5_TEST_LIBSH_TARGET}
       PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>"
       INTERFACE "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/include>"
   )
@@ -87,9 +90,9 @@ if (BUILD_SHARED_LIBS)
     set (HDF5_TEST_PLUGIN_TARGET            ${HDF5_TEST_PLUGIN_CORENAME})
 
     add_library (${HDF5_TEST_PLUGIN_TARGET} SHARED ${HDF5_TEST_SOURCE_DIR}/${plugin_name}.c)
-    target_include_directories(${HDF5_TEST_PLUGIN_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+    target_include_directories (${HDF5_TEST_PLUGIN_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
     TARGET_C_PROPERTIES (${HDF5_TEST_PLUGIN_TARGET} SHARED)
-    target_link_libraries (${HDF5_TEST_PLUGIN_TARGET} PUBLIC ${HDF5_TEST_LIB_TARGET})
+    target_link_libraries (${HDF5_TEST_PLUGIN_TARGET} PUBLIC ${HDF5_TEST_LIBSH_TARGET})
     H5_SET_LIB_OPTIONS (${HDF5_TEST_PLUGIN_TARGET} ${HDF5_TEST_PLUGIN_NAME} SHARED "LIB")
     set_target_properties (${HDF5_TEST_PLUGIN_TARGET} PROPERTIES FOLDER libraries/TEST_PLUGIN)
 
@@ -112,9 +115,9 @@ if (BUILD_SHARED_LIBS)
     set (HDF5_TEST_PLUGIN_TARGET            ${HDF5_TEST_PLUGIN_CORENAME})
 
     add_library (${HDF5_TEST_PLUGIN_TARGET} SHARED ${HDF5_TEST_SOURCE_DIR}/${plugin_name}.c)
-    target_include_directories(${HDF5_TEST_PLUGIN_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+    target_include_directories (${HDF5_TEST_PLUGIN_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
     TARGET_C_PROPERTIES (${HDF5_TEST_PLUGIN_TARGET} SHARED)
-    target_link_libraries (${HDF5_TEST_PLUGIN_TARGET} PUBLIC ${HDF5_TEST_LIB_TARGET})
+    target_link_libraries (${HDF5_TEST_PLUGIN_TARGET} PUBLIC ${HDF5_TEST_LIBSH_TARGET})
     H5_SET_LIB_OPTIONS (${HDF5_TEST_PLUGIN_TARGET} ${HDF5_TEST_PLUGIN_NAME} SHARED "LIB")
     set_target_properties (${HDF5_TEST_PLUGIN_TARGET} PROPERTIES FOLDER libraries/TEST_PLUGIN)
 
@@ -149,9 +152,9 @@ if (BUILD_SHARED_LIBS)
     set (HDF5_VOL_PLUGIN_LIB_TARGET             ${HDF5_VOL_PLUGIN_LIB_CORENAME})
 
     add_library (${HDF5_VOL_PLUGIN_LIB_TARGET} SHARED ${HDF5_TEST_SOURCE_DIR}/${vol_lib}.c)
-    target_include_directories(${HDF5_VOL_PLUGIN_LIB_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+    target_include_directories (${HDF5_VOL_PLUGIN_LIB_TARGET} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
     TARGET_C_PROPERTIES (${HDF5_VOL_PLUGIN_LIB_TARGET} SHARED)
-    target_link_libraries (${HDF5_VOL_PLUGIN_LIB_TARGET} PUBLIC ${HDF5_TEST_LIB_TARGET})
+    target_link_libraries (${HDF5_VOL_PLUGIN_LIB_TARGET} PUBLIC ${HDF5_TEST_LIBSH_TARGET})
     H5_SET_LIB_OPTIONS (${HDF5_VOL_PLUGIN_LIB_TARGET} ${HDF5_VOL_PLUGIN_LIB_NAME} SHARED "LIB")
     set_target_properties (${HDF5_VOL_PLUGIN_LIB_TARGET} PROPERTIES FOLDER libraries/TEST_PLUGIN)
 
@@ -282,17 +285,15 @@ set (H5_TESTS
 
 macro (ADD_H5_EXE file)
   add_executable (${file} ${HDF5_TEST_SOURCE_DIR}/${file}.c)
-  target_include_directories(${file} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (${file} STATIC)
-  target_link_libraries (${file} PRIVATE ${HDF5_TEST_LIB_TARGET})
-  set_target_properties (${file} PROPERTIES FOLDER test)
-  if (BUILD_SHARED_LIBS)
-    add_executable (${file}-shared ${HDF5_TEST_SOURCE_DIR}/${file}.c)
-    target_include_directories(${file}-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-    TARGET_C_PROPERTIES (${file}-shared SHARED)
-    target_link_libraries (${file}-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET})
-    set_target_properties (${file}-shared PROPERTIES FOLDER test)
+  target_include_directories (${file} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+  if (NOT BUILD_SHARED_LIBS)
+    TARGET_C_PROPERTIES (${file} STATIC)
+    target_link_libraries (${file} PRIVATE ${HDF5_TEST_LIB_TARGET})
+  else ()
+    TARGET_C_PROPERTIES (${file} SHARED)
+    target_link_libraries (${file} PRIVATE ${HDF5_TEST_LIBSH_TARGET})
   endif ()
+  set_target_properties (${file} PROPERTIES FOLDER test)
 endmacro ()
 
 set (H5_TESTS_MULTIPLE
@@ -314,66 +315,58 @@ endforeach ()
 ######### Also special handling of link libs #############
 #-- Adding test for direct_chunk
 add_executable (direct_chunk ${HDF5_TEST_SOURCE_DIR}/direct_chunk.c)
-target_include_directories(direct_chunk PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (direct_chunk STATIC)
-target_link_libraries (direct_chunk PRIVATE ${HDF5_TEST_LIB_TARGET} ${LINK_COMP_LIBS})
-set_target_properties (direct_chunk PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (direct_chunk-shared ${HDF5_TEST_SOURCE_DIR}/direct_chunk.c)
-  target_include_directories(direct_chunk-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (direct_chunk-shared SHARED)
-  target_link_libraries (direct_chunk-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${LINK_COMP_LIBS})
-  set_target_properties (direct_chunk-shared PROPERTIES FOLDER test)
+target_include_directories (direct_chunk PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (direct_chunk STATIC)
+  target_link_libraries (direct_chunk PRIVATE ${HDF5_TEST_LIB_TARGET} ${LINK_COMP_LIBS})
+else ()
+  TARGET_C_PROPERTIES (direct_chunk SHARED)
+  target_link_libraries (direct_chunk PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${LINK_COMP_LIBS})
 endif ()
+set_target_properties (direct_chunk PROPERTIES FOLDER test)
 
 
 ######### Special handling for multiple sources #############
 #-- Adding test for testhdf5
 add_executable (testhdf5 ${testhdf5_SOURCES})
-target_include_directories(testhdf5 PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (testhdf5 STATIC)
-target_link_libraries (testhdf5 PRIVATE ${HDF5_TEST_LIB_TARGET})
-set_target_properties (testhdf5 PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (testhdf5-shared ${testhdf5_SOURCES})
-  target_include_directories(testhdf5-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (testhdf5-shared SHARED)
-  target_link_libraries (testhdf5-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET})
-  set_target_properties (testhdf5-shared PROPERTIES FOLDER test)
+target_include_directories (testhdf5 PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (testhdf5 STATIC)
+  target_link_libraries (testhdf5 PRIVATE ${HDF5_TEST_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (testhdf5 SHARED)
+  target_link_libraries (testhdf5 PRIVATE ${HDF5_TEST_LIBSH_TARGET})
 endif ()
+set_target_properties (testhdf5 PROPERTIES FOLDER test)
 
 #-- Adding test for cache_image
 add_executable (cache_image ${cache_image_SOURCES})
-target_include_directories(cache_image PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (cache_image STATIC)
-target_link_libraries (cache_image PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
-set_target_properties (cache_image PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (cache_image-shared ${cache_image_SOURCES})
-  target_include_directories(cache_image-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (cache_image-shared SHARED)
-  target_link_libraries (cache_image-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET})
-  set_target_properties (cache_image-shared PROPERTIES FOLDER test)
+target_include_directories (cache_image PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (cache_image STATIC)
+  target_link_libraries (cache_image PRIVATE ${HDF5_TEST_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (cache_image SHARED)
+  target_link_libraries (cache_image PRIVATE ${HDF5_TEST_LIBSH_TARGET})
 endif ()
+set_target_properties (cache_image PROPERTIES FOLDER test)
 
 #-- Adding test for ttsafe
 add_executable (ttsafe ${ttsafe_SOURCES})
-target_include_directories(ttsafe PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (ttsafe STATIC)
-target_link_libraries (ttsafe PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
-if (NOT WIN32)
-  target_link_libraries (ttsafe
-    PRIVATE $<$<BOOL:${HDF5_ENABLE_THREADSAFE}>:Threads::Threads>
-  )
+target_include_directories (ttsafe PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (ttsafe STATIC)
+  target_link_libraries (ttsafe PRIVATE ${HDF5_TEST_LIB_TARGET})
+  if (NOT WIN32)
+    target_link_libraries (ttsafe
+      PRIVATE $<$<BOOL:${HDF5_ENABLE_THREADSAFE}>:Threads::Threads>
+    )
+  endif ()
+else ()
+  TARGET_C_PROPERTIES (ttsafe SHARED)
+  target_link_libraries (ttsafe PRIVATE ${HDF5_TEST_LIBSH_TARGET} $<$<BOOL:${HDF5_ENABLE_THREADSAFE}>:Threads::Threads>)
 endif ()
 set_target_properties (ttsafe PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (ttsafe-shared ${ttsafe_SOURCES})
-  target_include_directories(ttsafe-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (ttsafe-shared SHARED)
-  target_link_libraries (ttsafe-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET} $<$<BOOL:${HDF5_ENABLE_THREADSAFE}>:Threads::Threads>)
-  set_target_properties (ttsafe-shared PROPERTIES FOLDER test)
-endif ()
 
 ##############################################################################
 ###           A D D I T I O N A L   T E S T S                              ###
@@ -443,43 +436,33 @@ endforeach ()
 #   This has to be copied to the test directory for execve() to find it
 #   and it can't be renamed (i.e., no <foo>-shared).
 add_executable (accum_swmr_reader ${HDF5_TEST_SOURCE_DIR}/accum_swmr_reader.c)
-target_include_directories(accum_swmr_reader PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (accum_swmr_reader STATIC)
-target_link_libraries (accum_swmr_reader PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
+target_include_directories (accum_swmr_reader PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (accum_swmr_reader STATIC)
+  target_link_libraries (accum_swmr_reader PRIVATE ${HDF5_TEST_LIB_TARGET} ${HDF5_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (accum_swmr_reader SHARED)
+  target_link_libraries (accum_swmr_reader PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET})
+endif ()
 set_target_properties (accum_swmr_reader PROPERTIES FOLDER test)
 
 #-- Set accum dependencies
 set_target_properties (accum PROPERTIES DEPENDS accum_swmr_reader)
-if (BUILD_SHARED_LIBS)
-  set_target_properties (accum-shared PROPERTIES DEPENDS accum_swmr_reader)
-endif ()
 
 ##############################################################################
 ###    P L U G I N  T E S T S
 ##############################################################################
 if (BUILD_SHARED_LIBS)
   add_executable (filter_plugin ${HDF5_TEST_SOURCE_DIR}/filter_plugin.c)
-  target_include_directories(filter_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+  target_include_directories (filter_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
   TARGET_C_PROPERTIES (filter_plugin SHARED)
-  target_link_libraries (filter_plugin PRIVATE ${HDF5_TEST_LIB_TARGET})
+  target_link_libraries (filter_plugin PRIVATE ${HDF5_TEST_LIBSH_TARGET})
   set_target_properties (filter_plugin PROPERTIES FOLDER test)
 
   add_executable (vol_plugin ${HDF5_TEST_SOURCE_DIR}/vol_plugin.c)
-  target_include_directories(vol_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+  target_include_directories (vol_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
   TARGET_C_PROPERTIES (vol_plugin SHARED)
-  target_link_libraries (vol_plugin PRIVATE ${HDF5_TEST_LIB_TARGET})
-  set_target_properties (vol_plugin PROPERTIES FOLDER test)
-else ()
-  add_executable (filter_plugin ${HDF5_TEST_SOURCE_DIR}/filter_plugin.c)
-  target_include_directories(filter_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (filter_plugin STATIC)
-  target_link_libraries (filter_plugin PRIVATE ${HDF5_TEST_LIB_TARGET})
-  set_target_properties (filter_plugin PROPERTIES FOLDER test)
-
-  add_executable (vol_plugin ${HDF5_TEST_SOURCE_DIR}/vol_plugin.c)
-  target_include_directories(vol_plugin PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (vol_plugin STATIC)
-  target_link_libraries (vol_plugin PRIVATE ${HDF5_TEST_LIB_TARGET})
+  target_link_libraries (vol_plugin PRIVATE ${HDF5_TEST_LIBSH_TARGET})
   set_target_properties (vol_plugin PROPERTIES FOLDER test)
 endif ()
 
@@ -488,44 +471,38 @@ endif ()
 ##############################################################################
 set (use_append_chunk_SOURCES ${HDF5_TEST_SOURCE_DIR}/use_append_chunk.c ${HDF5_TEST_SOURCE_DIR}/use_common.c)
 add_executable (use_append_chunk ${use_append_chunk_SOURCES})
-target_include_directories(use_append_chunk PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (use_append_chunk STATIC)
-target_link_libraries (use_append_chunk PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
-set_target_properties (use_append_chunk PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (use_append_chunk-shared ${use_append_chunk_SOURCES})
-  target_include_directories(use_append_chunk-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (use_append_chunk-shared SHARED)
-  target_link_libraries (use_append_chunk-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET})
-  set_target_properties (use_append_chunk-shared PROPERTIES FOLDER test)
+target_include_directories (use_append_chunk PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (use_append_chunk STATIC)
+  target_link_libraries (use_append_chunk PRIVATE ${HDF5_TEST_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (use_append_chunk SHARED)
+  target_link_libraries (use_append_chunk PRIVATE ${HDF5_TEST_LIBSH_TARGET})
 endif ()
+set_target_properties (use_append_chunk PROPERTIES FOLDER test)
 
 set (use_append_mchunks_SOURCES ${HDF5_TEST_SOURCE_DIR}/use_append_mchunks.c ${HDF5_TEST_SOURCE_DIR}/use_common.c)
 add_executable (use_append_mchunks ${use_append_mchunks_SOURCES})
-target_include_directories(use_append_mchunks PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (use_append_mchunks STATIC)
-target_link_libraries (use_append_mchunks PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
-set_target_properties (use_append_mchunks PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (use_append_mchunks-shared ${use_append_mchunks_SOURCES})
-  target_include_directories(use_append_mchunks-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (use_append_mchunks-shared SHARED)
-  target_link_libraries (use_append_mchunks-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET})
-  set_target_properties (use_append_mchunks-shared PROPERTIES FOLDER test)
+target_include_directories (use_append_mchunks PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (use_append_mchunks STATIC)
+  target_link_libraries (use_append_mchunks PRIVATE ${HDF5_TEST_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (use_append_mchunks SHARED)
+  target_link_libraries (use_append_mchunks PRIVATE ${HDF5_TEST_LIBSH_TARGET})
 endif ()
+set_target_properties (use_append_mchunks PROPERTIES FOLDER test)
 
 set (use_disable_mdc_flushes_SOURCES ${HDF5_TEST_SOURCE_DIR}/use_disable_mdc_flushes.c)
 add_executable (use_disable_mdc_flushes ${use_disable_mdc_flushes_SOURCES})
-target_include_directories(use_disable_mdc_flushes PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-TARGET_C_PROPERTIES (use_disable_mdc_flushes STATIC)
-target_link_libraries (use_disable_mdc_flushes PRIVATE ${HDF5_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
-set_target_properties (use_disable_mdc_flushes PROPERTIES FOLDER test)
-if (BUILD_SHARED_LIBS)
-  add_executable (use_disable_mdc_flushes-shared ${use_disable_mdc_flushes_SOURCES})
-  target_include_directories(use_disable_mdc_flushes-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
-  TARGET_C_PROPERTIES (use_disable_mdc_flushes-shared SHARED)
-  target_link_libraries (use_disable_mdc_flushes-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${HDF5_LIBSH_TARGET})
-  set_target_properties (use_disable_mdc_flushes-shared PROPERTIES FOLDER test)
+target_include_directories (use_disable_mdc_flushes PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+if (NOT BUILD_SHARED_LIBS)
+  TARGET_C_PROPERTIES (use_disable_mdc_flushes STATIC)
+  target_link_libraries (use_disable_mdc_flushes PRIVATE ${HDF5_TEST_LIB_TARGET})
+else ()
+  TARGET_C_PROPERTIES (use_disable_mdc_flushes SHARED)
+  target_link_libraries (use_disable_mdc_flushes PRIVATE ${HDF5_TEST_LIBSH_TARGET})
 endif ()
+set_target_properties (use_disable_mdc_flushes PROPERTIES FOLDER test)
 
 include (CMakeTests.cmake)
diff --git a/test/CMakePassthroughVOLTests.cmake b/test/CMakePassthroughVOLTests.cmake
index 928654e..24a0201 100644
--- a/test/CMakePassthroughVOLTests.cmake
+++ b/test/CMakePassthroughVOLTests.cmake
@@ -31,37 +31,23 @@ foreach (voltest ${VOL_LIST})
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}")
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}/testfiles")
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}/testfiles/plist_files")
-  if (BUILD_SHARED_LIBS)
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}-shared")
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}-shared/testfiles")
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${voltest}-shared/testfiles/plist_files")
-  endif ()
 endforeach ()
 
 foreach (voltest ${VOL_LIST})
   foreach (h5_tfile ${HDF5_TEST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/${voltest}/${h5_tfile}" "HDF5_VOLTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/${voltest}-shared/${h5_tfile}" "HDF5_VOLTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 foreach (voltest ${VOL_LIST})
   foreach (ref_file ${HDF5_REFERENCE_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/${voltest}/${ref_file}" "HDF5_VOLTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/${voltest}-shared/${ref_file}" "HDF5_VOLTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 foreach (voltest ${VOL_LIST})
   foreach (h5_file ${HDF5_REFERENCE_TEST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/${voltest}/${h5_file}" "HDF5_VOLTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/${voltest}-shared/${h5_file}" "HDF5_VOLTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
@@ -69,17 +55,10 @@ foreach (voltest ${VOL_LIST})
   foreach (plistfile ${HDF5_REFERENCE_PLIST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/${voltest}/testfiles/plist_files/${plistfile}" "HDF5_VOLTEST_LIB_files")
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/${voltest}/testfiles/plist_files/def_${plistfile}" "HDF5_VOLTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/${voltest}-shared/testfiles/plist_files/${plistfile}" "HDF5_VOLTEST_LIBSH_files")
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/${voltest}-shared/testfiles/plist_files/def_${plistfile}" "HDF5_VOLTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 add_custom_target(HDF5_VOLTEST_LIB_files ALL COMMENT "Copying files needed by HDF5_VOLTEST_LIB tests" DEPENDS ${HDF5_VOLTEST_LIB_files_list})
-if (BUILD_SHARED_LIBS)
-  add_custom_target(HDF5_VOLTEST_LIBSH_files ALL COMMENT "Copying files needed by HDF5_VOLTEST_LIBSH tests" DEPENDS ${HDF5_VOLTEST_LIBSH_files_list})
-endif ()
 
 ##############################################################################
 ##############################################################################
@@ -133,39 +112,10 @@ endif ()
               ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}"
               WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}
           )
-          if (BUILD_SHARED_LIBS)
-            add_test (
-                NAME VOL-${volname}-${voltest}-shared-clear-objects
-                COMMAND    ${CMAKE_COMMAND}
-                    -E remove
-                        ${volname}-shared/${volname}-${voltest}-shared.out
-                        ${volname}-shared/${volname}-${voltest}-shared.out.err
-            )
-            add_test (NAME VOL-${volname}-${voltest}-shared
-                COMMAND "${CMAKE_COMMAND}"
-                    -D "TEST_PROGRAM=$<TARGET_FILE:${voltest}-shared>"
-                    -D "TEST_ARGS:STRING="
-                    -D "TEST_VOL:STRING=${volinfo}"
-                    -D "TEST_EXPECT=${resultcode}"
-                    -D "TEST_OUTPUT=${volname}-${voltest}-shared.out"
-                    -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${volname}-shared"
-                    -P "${HDF_RESOURCES_DIR}/volTest.cmake"
-            )
-            set_tests_properties (VOL-${volname}-${voltest}-shared PROPERTIES
-                DEPENDS VOL-${volname}-${voltest}-shared-clear-objects
-                ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}-shared"
-                WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}-shared
-            )
-          endif ()
         else ()
           add_test (NAME VOL-${volname}-${voltest}
               COMMAND ${CMAKE_COMMAND} -E echo "SKIP VOL-${volname}-${voltest}"
           )
-          if (BUILD_SHARED_LIBS)
-            add_test (NAME VOL-${volname}-${voltest}-shared
-                COMMAND ${CMAKE_COMMAND} -E echo "SKIP VOL-${volname}-${voltest}-shared"
-            )
-          endif ()
         endif ()
       else ()
         add_test (
@@ -190,30 +140,6 @@ endif ()
             ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}"
             WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}
         )
-        if (BUILD_SHARED_LIBS)
-          add_test (
-              NAME VOL-${volname}-${voltest}-shared-clear-objects
-              COMMAND    ${CMAKE_COMMAND}
-                  -E remove
-                      ${volname}-shared/${volname}-${voltest}-shared.out
-                      ${volname}-shared/${volname}-${voltest}-shared.out.err
-          )
-          add_test (NAME VOL-${volname}-${voltest}-shared
-              COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${voltest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VOL:STRING=${volinfo}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${volname}-${voltest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${volname}-shared"
-                -P "${HDF_RESOURCES_DIR}/volTest.cmake"
-          )
-          set_tests_properties (VOL-${volname}-${voltest}-shared PROPERTIES
-              DEPENDS VOL-${volname}-${voltest}-shared-clear-objects
-              ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}-shared"
-              WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}-shared
-          )
-        endif ()
       endif ()
     else ()
       add_test (
@@ -238,30 +164,6 @@ endif ()
           ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname};HDF5TestExpress=${HDF_TEST_EXPRESS}"
           WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}
       )
-      if (BUILD_SHARED_LIBS AND NOT "${voltest}" STREQUAL "cache")
-        add_test (
-            NAME VOL-${volname}-${voltest}-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${volname}-shared/${volname}-${voltest}-shared.out
-                    ${volname}-shared/${volname}-${voltest}-shared.out.err
-        )
-        add_test (NAME VOL-${volname}-${voltest}-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${voltest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VOL:STRING=${volinfo}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${volname}-${voltest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${volname}-shared"
-                -P "${HDF_RESOURCES_DIR}/volTest.cmake"
-        )
-        set_tests_properties (VOL-${volname}-${voltest}-shared PROPERTIES
-            DEPENDS VOL-${volname}-${voltest}-shared-clear-objects
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}-shared;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}-shared
-        )
-        endif ()
     endif ()
   endmacro ()
 
@@ -289,30 +191,6 @@ endif ()
           ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}"
           WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}
       )
-      if (BUILD_SHARED_LIBS)
-        add_test (
-            NAME VOL-${volname}-${voltest}-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${volname}-shared/${volname}-${voltest}-shared.out
-                    ${volname}-shared/${volname}-${voltest}-shared.out.err
-        )
-        add_test (NAME VOL-${volname}-${voltest}-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${voltest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VOL:STRING=${volinfo}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${volname}-${voltest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${volname}-shared"
-                -P "${HDF_RESOURCES_DIR}/volTest.cmake"
-        )
-        set_tests_properties (VOL-${volname}-${voltest}-shared PROPERTIES
-            DEPENDS VOL-${volname}-${voltest}-shared-clear-objects
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}-shared"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}-shared
-        )
-      endif ()
   endmacro ()
 
   macro (ADD_VOL_TEST volname volinfo resultcode)
@@ -333,15 +211,6 @@ endif ()
     if (NOT CYGWIN)
       set_tests_properties (VOL-${volname}-cache PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
     endif ()
-    if (BUILD_SHARED_LIBS)
-      set_tests_properties (VOL-${volname}-flush2-shared PROPERTIES DEPENDS VOL-${volname}-flush1-shared)
-      set_tests_properties (VOL-${volname}-flush1-shared PROPERTIES TIMEOUT 10)
-      set_tests_properties (VOL-${volname}-flush2-shared PROPERTIES TIMEOUT 10)
-      set_tests_properties (VOL-${volname}-istore-shared PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-      if (NOT CYGWIN AND NOT WIN32)
-        set_tests_properties (VOL-${volname}-cache-shared PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-      endif ()
-    endif ()
     if (HDF5_TEST_FHEAP_PASSTHROUGH_VOL)
       add_test (
           NAME VOL-${volname}-fheap-clear-objects
@@ -366,31 +235,6 @@ endif ()
           ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname};HDF5TestExpress=${HDF_TEST_EXPRESS}"
           WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}
       )
-      if (BUILD_SHARED_LIBS)
-        add_test (
-            NAME VOL-${volname}-fheap-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${volname}-shared/${volname}-fheap-shared.out
-                    ${volname}-shared/${volname}-fheap-shared.out.err
-        )
-        add_test (NAME VOL-${volname}-fheap-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:fheap-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VOL:STRING=${volinfo}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${volname}-fheap-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${volname}-shared"
-                -P "${HDF_RESOURCES_DIR}/volTest.cmake"
-        )
-        set_tests_properties (VOL-${volname}-fheap-shared PROPERTIES
-            DEPENDS VOL-${volname}-fheap-shared-clear-objects
-            TIMEOUT ${CTEST_VERY_LONG_TIMEOUT}
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${volname}-shared;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${volname}-shared
-        )
-      endif ()
     endif ()
   endmacro ()
 
diff --git a/test/CMakeTests.cmake b/test/CMakeTests.cmake
index 3e6add0..1e7ddff 100644
--- a/test/CMakeTests.cmake
+++ b/test/CMakeTests.cmake
@@ -20,11 +20,6 @@
 file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST")
 file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST/testfiles")
 file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST/testfiles/plist_files")
-if (BUILD_SHARED_LIBS)
-  file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST-shared")
-  file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST-shared/testfiles")
-  file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST-shared/testfiles/plist_files")
-endif ()
 
 # --------------------------------------------------------------------
 # Copy all the HDF5 files from the source directory into the test directory
@@ -39,20 +34,9 @@ add_custom_command (
     COMMAND    ${CMAKE_COMMAND}
     ARGS       -E copy_if_different "$<TARGET_FILE:accum_swmr_reader>" "${PROJECT_BINARY_DIR}/H5TEST/accum_swmr_reader"
 )
-if (BUILD_SHARED_LIBS)
-  add_custom_command (
-      TARGET     accum_swmr_reader
-      POST_BUILD
-      COMMAND    ${CMAKE_COMMAND}
-      ARGS       -E copy_if_different "$<TARGET_FILE:accum_swmr_reader>" "${PROJECT_BINARY_DIR}/H5TEST-shared/accum_swmr_reader"
-  )
-endif ()
 
 foreach (h5_tfile ${HDF5_TEST_FILES})
   HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/H5TEST/${h5_tfile}" "HDF5_TEST_LIB_files")
-  if (BUILD_SHARED_LIBS)
-    HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/H5TEST-shared/${h5_tfile}" "HDF5_TEST_LIBSH_files")
-  endif ()
 endforeach ()
 
 # --------------------------------------------------------------------
@@ -68,9 +52,6 @@ set (HDF5_REFERENCE_FILES
 
 foreach (ref_file ${HDF5_REFERENCE_FILES})
   HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/H5TEST/${ref_file}" "HDF5_TEST_LIB_files")
-  if (BUILD_SHARED_LIBS)
-    HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/H5TEST-shared/${ref_file}" "HDF5_TEST_LIBSH_files")
-  endif ()
 endforeach ()
 
 # --------------------------------------------------------------------
@@ -130,10 +111,6 @@ set (HDF5_REFERENCE_PLIST_FILES
 foreach (plistfile ${HDF5_REFERENCE_PLIST_FILES})
   HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/H5TEST/testfiles/plist_files/${plistfile}" "HDF5_TEST_LIB_files")
   HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/H5TEST/testfiles/plist_files/def_${plistfile}" "HDF5_TEST_LIB_files")
-  if (BUILD_SHARED_LIBS)
-    HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/H5TEST-shared/testfiles/plist_files/${plistfile}" "HDF5_TEST_LIBSH_files")
-    HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/H5TEST-shared/testfiles/plist_files/def_${plistfile}" "HDF5_TEST_LIBSH_files")
-  endif ()
 endforeach ()
 
 # --------------------------------------------------------------------
@@ -158,6 +135,7 @@ set (HDF5_REFERENCE_TEST_FILES
     filespace_1_6.h5
     filespace_1_8.h5
     fill_old.h5
+    fill18.h5
     filter_error.h5
     fsm_aggr_nopersist.h5
     fsm_aggr_persist.h5
@@ -194,38 +172,35 @@ set (HDF5_REFERENCE_TEST_FILES
 
 foreach (h5_file ${HDF5_REFERENCE_TEST_FILES})
   HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/H5TEST/${h5_file}" "HDF5_TEST_LIB_files")
-  if (BUILD_SHARED_LIBS)
-    HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/H5TEST-shared/${h5_file}" "HDF5_TEST_LIBSH_files")
-  endif ()
 endforeach ()
 
 add_custom_target(HDF5_TEST_LIB_files ALL COMMENT "Copying files needed by HDF5_TEST_LIB tests" DEPENDS ${HDF5_TEST_LIB_files_list})
-if (BUILD_SHARED_LIBS)
-  add_custom_target(HDF5_TEST_LIBSH_files ALL COMMENT "Copying files needed by HDF5_TEST_LIBSH tests" DEPENDS ${HDF5_TEST_LIBSH_files_list})
-endif ()
+
+set (testhdf5_CLEANFILES
+          coord.h5
+          dtypes10.h5
+          sys_file1
+          tattr.h5
+          tfile1.h5
+          tfile2.h5
+          tfile3.h5
+          tfile4.h5
+          tfile5.h5
+          tfile6.h5
+          tfile7.h5
+          tfilespace.h5
+          th5o_file
+          th5s1.h5
+          tselect.h5
+          tsohm.h5
+          tsohm_dst.h5
+          tsohm_src.h5
+)
 
 # Remove any output file left over from previous test run
 add_test (NAME H5TEST-clear-testhdf5-objects
     COMMAND    ${CMAKE_COMMAND}
-        -E remove
-        coord.h5
-        dtypes10.h5
-        sys_file1
-        tattr.h5
-        tfile1.h5
-        tfile2.h5
-        tfile3.h5
-        tfile4.h5
-        tfile5.h5
-        tfile6.h5
-        tfile7.h5
-        tfilespace.h5
-        th5o_file
-        th5s1.h5
-        tselect.h5
-        tsohm.h5
-        tsohm_dst.h5
-        tsohm_src.h5
+        -E remove ${testhdf5_CLEANFILES}
     WORKING_DIRECTORY
         ${HDF5_TEST_BINARY_DIR}/H5TEST
 )
@@ -255,59 +230,6 @@ set_tests_properties (H5TEST-testhdf5-select PROPERTIES
     ENVIRONMENT "HDF5_ALARM_SECONDS=3600;srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST"
     WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST
 )
-if (NOT HDF5_ENABLE_USING_MEMCHECKER)
-  if (BUILD_SHARED_LIBS)
-    add_test (NAME H5TEST-shared-clear-testhdf5-objects
-        COMMAND    ${CMAKE_COMMAND}
-            -E remove
-            coord.h5
-            dtypes10.h5
-            sys_file1
-            tattr.h5
-            tfile1.h5
-            tfile2.h5
-            tfile3.h5
-            tfile4.h5
-            tfile5.h5
-            tfile6.h5
-            tfile7.h5
-            tfilespace.h5
-            th5o_file
-            th5s1.h5
-            tselect.h5
-            tsohm.h5
-            tsohm_dst.h5
-            tsohm_src.h5
-        WORKING_DIRECTORY
-            ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    set_tests_properties (H5TEST-shared-clear-testhdf5-objects PROPERTIES FIXTURES_SETUP shared_clear_testhdf5)
-    add_test (NAME H5TEST-shared-testhdf5-base COMMAND $<TARGET_FILE:testhdf5-shared> -x heap -x file -x select)
-    set_tests_properties (H5TEST-shared-testhdf5-base PROPERTIES
-        FIXTURES_REQUIRED shared_clear_testhdf5
-        ENVIRONMENT "HDF5_ALARM_SECONDS=3600;srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    add_test (NAME H5TEST-shared-testhdf5-heap COMMAND $<TARGET_FILE:testhdf5-shared> -o heap)
-    set_tests_properties (H5TEST-shared-testhdf5-heap PROPERTIES
-        FIXTURES_REQUIRED shared_clear_testhdf5
-        ENVIRONMENT "HDF5_ALARM_SECONDS=3600;srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    add_test (NAME H5TEST-shared-testhdf5-file COMMAND $<TARGET_FILE:testhdf5-shared> -o file)
-    set_tests_properties (H5TEST-shared-testhdf5-file PROPERTIES
-        FIXTURES_REQUIRED shared_clear_testhdf5
-        ENVIRONMENT "HDF5_ALARM_SECONDS=3600;srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    add_test (NAME H5TEST-shared-testhdf5-select COMMAND $<TARGET_FILE:testhdf5-shared> -o select)
-    set_tests_properties (H5TEST-shared-testhdf5-select PROPERTIES
-        FIXTURES_REQUIRED shared_clear_testhdf5
-        ENVIRONMENT "HDF5_ALARM_SECONDS=3600;srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-  endif ()
-endif ()
 
 ##############################################################################
 ##############################################################################
@@ -568,6 +490,7 @@ foreach (h5_test ${H5_TESTS})
             -D "TEST_EXPECT=0"
             -D "TEST_SKIP_COMPARE=TRUE"
             -D "TEST_OUTPUT=${h5_test}.txt"
+            -D "TEST_LIBRARY_DIRECTORY=${CMAKE_TEST_OUTPUT_DIRECTORY}"
             #-D "TEST_REFERENCE=${test}.out"
             -D "TEST_FOLDER=${HDF5_TEST_BINARY_DIR}/H5TEST"
             -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
@@ -587,49 +510,6 @@ set_tests_properties (H5TEST-big PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
 set_tests_properties (H5TEST-btree2 PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
 set_tests_properties (H5TEST-objcopy PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
 
-if (BUILD_SHARED_LIBS)
-  # Remove any output file left over from previous test run
-  add_test (NAME H5TEST-shared-clear-objects
-      COMMAND    ${CMAKE_COMMAND}
-          -E remove
-          ${test_CLEANFILES}
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-  set_tests_properties (H5TEST-shared-clear-objects PROPERTIES FIXTURES_SETUP shared_clear_objects)
-
-  foreach (h5_test ${H5_TESTS})
-    if (NOT h5_test IN_LIST H5TEST_SEPARATE_TESTS)
-      if ("${h5_test}" STREQUAL "big" AND CYGWIN)
-        add_test (NAME H5TEST-shared-${h5_test}
-            COMMAND ${CMAKE_COMMAND} -E echo "SKIP ${test}-shared"
-        )
-      else ()
-        add_test (NAME H5TEST-shared-${h5_test} COMMAND "${CMAKE_COMMAND}"
-            -D "TEST_PROGRAM=$<TARGET_FILE:${h5_test}-shared>"
-            -D "TEST_ARGS:STRING="
-            -D "TEST_EXPECT=0"
-            -D "TEST_SKIP_COMPARE=TRUE"
-            -D "TEST_OUTPUT=${h5_test}.txt"
-            #-D "TEST_REFERENCE=${test}.out"
-            -D "TEST_FOLDER=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-            -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-        )
-      endif ()
-      set_tests_properties (H5TEST-shared-${h5_test} PROPERTIES
-          FIXTURES_REQUIRED shared_clear_objects
-          ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-          WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-      )
-    endif ()
-  endforeach ()
-
-  set_tests_properties (H5TEST-shared-fheap PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-  set_tests_properties (H5TEST-shared-big PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-  set_tests_properties (H5TEST-shared-btree2 PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-  set_tests_properties (H5TEST-shared-objcopy PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-endif ()
-
 #-- Adding test for cache
 if (NOT CYGWIN)
   add_test (NAME H5TEST-clear-cache-objects
@@ -663,22 +543,22 @@ if (NOT CYGWIN)
 endif ()
 
 if (TEST_CACHE_IMAGE)
-#-- Adding test for cache_image
-add_test (
-    NAME H5TEST-clear-cache_image-objects
-    COMMAND    ${CMAKE_COMMAND}
-        -E remove
-        cache_image_test.h5
-    WORKING_DIRECTORY
-        ${HDF5_TEST_BINARY_DIR}/H5TEST
-)
-set_tests_properties (H5TEST-clear-cache_image-objects PROPERTIES FIXTURES_SETUP cache_image_clear_objects)
-add_test (NAME H5TEST-cache_image COMMAND $<TARGET_FILE:cache_image>)
-set_tests_properties (H5TEST-cache_image PROPERTIES
-    FIXTURES_REQUIRED cache_image_clear_objects
-    ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-    WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST
-)
+  #-- Adding test for cache_image
+  add_test (
+      NAME H5TEST-clear-cache_image-objects
+      COMMAND    ${CMAKE_COMMAND}
+          -E remove
+          cache_image_test.h5
+      WORKING_DIRECTORY
+         ${HDF5_TEST_BINARY_DIR}/H5TEST
+  )
+  set_tests_properties (H5TEST-clear-cache_image-objects PROPERTIES FIXTURES_SETUP cache_image_clear_objects)
+  add_test (NAME H5TEST-cache_image COMMAND $<TARGET_FILE:cache_image>)
+  set_tests_properties (H5TEST-cache_image PROPERTIES
+      FIXTURES_REQUIRED cache_image_clear_objects
+      ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST;HDF5TestExpress=${HDF_TEST_EXPRESS}"
+      WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST
+  )
 endif ()
 
 #-- Adding test for external_env
@@ -758,40 +638,6 @@ set_tests_properties (H5TEST-vds_env PROPERTIES
     WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST
 )
 
-if (BUILD_SHARED_LIBS)
-  #-- Adding test for cache
-  if (NOT CYGWIN AND NOT WIN32)
-    add_test (NAME H5TEST-shared-clear-cache-objects
-        COMMAND    ${CMAKE_COMMAND}
-            -E remove
-            cache_test.h5
-        WORKING_DIRECTORY
-            ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    set_tests_properties (H5TEST-clear-objects PROPERTIES FIXTURES_SETUP shared_cache_clear_objects)
-    if (HDF5_ENABLE_USING_MEMCHECKER)
-      add_test (NAME H5TEST-shared-cache COMMAND $<TARGET_FILE:cache-shared>)
-    else ()
-      add_test (NAME H5TEST-shared-cache COMMAND "${CMAKE_COMMAND}"
-          -D "TEST_PROGRAM=$<TARGET_FILE:cache-shared>"
-          -D "TEST_ARGS:STRING="
-          -D "TEST_EXPECT=0"
-          -D "TEST_SKIP_COMPARE=TRUE"
-          -D "TEST_OUTPUT=cache-shared.txt"
-          #-D "TEST_REFERENCE=cache-shared.out"
-          -D "TEST_FOLDER=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-          -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-      )
-    endif ()
-    set_tests_properties (H5TEST-shared-cache PROPERTIES
-        FIXTURES_REQUIRED shared_cache_clear_objects
-        ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    set_tests_properties (H5TEST-shared-cache PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-  endif ()
-endif ()
-
 #-- Adding test for flush1/2
 add_test (NAME H5TEST-clear-flush-objects
     COMMAND    ${CMAKE_COMMAND}
@@ -857,7 +703,6 @@ set_tests_properties (H5TEST-tcheck_version-release PROPERTIES
     WILL_FAIL "true"
 )
 
-
 ##############################################################################
 ##############################################################################
 ###           A D D I T I O N A L   T E S T S                              ###
@@ -1029,170 +874,6 @@ add_test (NAME H5TEST-testlibinfo
         ${HDF5_TEST_BINARY_DIR}/H5TEST
 )
 
-if (BUILD_SHARED_LIBS)
-  #-- Adding test for err_compat
-  if (HDF5_ENABLE_DEPRECATED_SYMBOLS)
-    add_test (NAME H5TEST-shared-clear-err_compat-objects
-        COMMAND    ${CMAKE_COMMAND}
-            -E remove
-            err_compat.txt
-            err_compat.txt.err
-        WORKING_DIRECTORY
-            ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-    set_tests_properties (H5TEST-shared-clear-err_compat-objects PROPERTIES FIXTURES_SETUP shared_err_compat_clear_objects)
-    add_test (NAME H5TEST-shared-err_compat COMMAND "${CMAKE_COMMAND}"
-        -D "TEST_PROGRAM=$<TARGET_FILE:err_compat-shared>"
-        -D "TEST_ARGS:STRING="
-        -D "TEST_EXPECT=0"
-        -D "TEST_MASK_ERROR=true"
-        -D "ERROR_APPEND=1"
-        -D "TEST_OUTPUT=err_compat.txt"
-        -D "TEST_REFERENCE=err_compat_1"
-        -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/H5TEST-shared"
-        -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-    )
-    set_tests_properties (H5TEST-shared-err_compat PROPERTIES
-        FIXTURES_REQUIRED shared_err_compat_clear_objects
-        ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-  endif ()
-
-  #-- Adding test for error_test
-  add_test (NAME H5TEST-shared-clear-error_test-objects
-      COMMAND    ${CMAKE_COMMAND}
-          -E remove
-          error_test.txt
-          error_test.txt.err
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-  set_tests_properties (H5TEST-shared-clear-error_test-objects PROPERTIES FIXTURES_SETUP shared_error_test_clear_objects)
-  if (HDF5_USE_16_API_DEFAULT)
-    add_test (
-        NAME H5TEST-shared-error_test
-        COMMAND ${CMAKE_COMMAND} -E echo "SKIP $<TARGET_FILE:error_test-shared>"
-    )
-    set_property(TEST H5TEST-shared-error_test PROPERTY DISABLED)
-  else ()
-    add_test (NAME H5TEST-shared-error_test COMMAND "${CMAKE_COMMAND}"
-        -D "TEST_PROGRAM=$<TARGET_FILE:error_test-shared>"
-        -D "TEST_ARGS:STRING="
-        -D "TEST_EXPECT=0"
-        -D "TEST_MASK_ERROR=true"
-        -D "ERROR_APPEND=1"
-        -D "TEST_OUTPUT=error_test.txt"
-        -D "TEST_REFERENCE=error_test_1"
-        -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/H5TEST-shared"
-        -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-    )
-    set_tests_properties (H5TEST-shared-error_test PROPERTIES
-        FIXTURES_REQUIRED shared_error_test_clear_objects
-        ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared;HDF5_PLUGIN_PRELOAD=::"
-        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-    )
-  endif ()
-
-  #-- Adding test for links_env
-  add_test (NAME H5TEST-shared-clear-links_env-objects
-      COMMAND    ${CMAKE_COMMAND}
-          -E remove
-          links_env.txt
-          links_env.txt.err
-          extlinks_env0.h5
-          extlinks_env1.h5
-          tmp/extlinks_env1.h5
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-  set_tests_properties (H5TEST-shared-clear-links_env-objects PROPERTIES FIXTURES_SETUP shared_links_env_clear_objects)
-  add_test (NAME H5TEST-shared-links_env COMMAND "${CMAKE_COMMAND}"
-      -D "TEST_PROGRAM=$<TARGET_FILE:links_env-shared>"
-      -D "TEST_ARGS:STRING="
-      #-D "TEST_ENV_VAR:STRING=HDF5_EXT_PREFIX"
-      #-D "TEST_ENV_VALUE:STRING=.:tmp"
-      -D "TEST_EXPECT=0"
-      -D "TEST_OUTPUT=links_env.txt"
-      -D "TEST_REFERENCE=links_env.out"
-      -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/H5TEST-shared"
-      -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-  )
-  set_tests_properties (H5TEST-shared-links_env PROPERTIES
-      FIXTURES_REQUIRED shared_links_env_clear_objects
-      ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared;HDF5_EXT_PREFIX=.:tmp"
-      WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-
-  #-- Adding test for external_env
-  add_test (NAME H5TEST-shared-clear-external_env-objects
-      COMMAND    ${CMAKE_COMMAND}
-          -E remove
-          extern_1r.raw
-          extern_2r.raw
-          extern_3r.raw
-          extern_4r.raw
-          extern_1w.raw
-          extern_2w.raw
-          extern_3w.raw
-          extern_4w.raw
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-  set_tests_properties (H5TEST-shared-clear-external_env-objects PROPERTIES FIXTURES_SETUP shared_external_env_clear_objects)
-  add_test (NAME H5TEST-shared-external_env COMMAND "${CMAKE_COMMAND}"
-      -D "TEST_PROGRAM=$<TARGET_FILE:external_env-shared>"
-      -D "TEST_ARGS:STRING="
-      -D "TEST_ENV_VAR:STRING=HDF5_EXTFILE_PREFIX"
-      -D "TEST_ENV_VALUE:STRING=\${ORIGIN}"
-      -D "TEST_EXPECT=0"
-      -D "TEST_OUTPUT=external_env.txt"
-      -D "TEST_REFERENCE=external_env.out"
-      -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/H5TEST-shared"
-      -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-  )
-  set_tests_properties (H5TEST-shared-external_env PROPERTIES
-      FIXTURES_REQUIRED shared_external_env_clear_objects
-      ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-      WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-
-  #-- Adding test for vds_env
-  add_test (NAME H5TEST-shared-clear-vds_env-objects
-      COMMAND    ${CMAKE_COMMAND}
-          -E remove
-          vds_virt_0.h5
-          vds_virt_3.h5
-          vds_src_2.h5
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-  set_tests_properties (H5TEST-shared-clear-vds_env-objects PROPERTIES FIXTURES_SETUP shared_vds_env_clear_objects)
-  add_test (NAME H5TEST-shared-vds_env COMMAND "${CMAKE_COMMAND}"
-      -D "TEST_PROGRAM=$<TARGET_FILE:vds_env-shared>"
-      -D "TEST_ARGS:STRING="
-      -D "TEST_ENV_VAR:STRING=HDF5_VDS_PREFIX"
-      -D "TEST_ENV_VALUE:STRING=\${ORIGIN}/tmp"
-      -D "TEST_EXPECT=0"
-      -D "TEST_OUTPUT=vds_env.txt"
-      -D "TEST_REFERENCE=vds_env.out"
-      -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/H5TEST-shared"
-      -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
-  )
-  set_tests_properties (H5TEST-shared-vds_env PROPERTIES
-      FIXTURES_REQUIRED shared_vds_env_clear_objects
-      ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST-shared"
-      WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-
-  #-- Adding test for libinfo
-  add_test (NAME H5TEST-shared-testlibinfo
-      COMMAND ${CMAKE_COMMAND} -D "TEST_PROGRAM=$<TARGET_FILE:${HDF5_LIBSH_TARGET}>" -P "${GREP_RUNNER}"
-      WORKING_DIRECTORY
-          ${HDF5_TEST_BINARY_DIR}/H5TEST-shared
-  )
-endif ()
-
 ##############################################################################
 ###    F I L T E R  P L U G I N  T E S T S
 ##############################################################################
@@ -1239,9 +920,6 @@ if (ENABLE_EXTENDED_TESTS)
 
 #-- Adding test for flushrefresh
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST/flushrefresh_test")
-  if (BUILD_SHARED_LIBS)
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/H5TEST-shared/flushrefresh_test")
-  endif ()
   find_package (Perl)
   if (PERL_FOUND)
     add_test (NAME H5TEST-clear-testflushrefresh-objects
@@ -1272,10 +950,10 @@ if (ENABLE_EXTENDED_TESTS)
         ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/H5TEST/flushrefresh_test"
         WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/H5TEST/flushrefresh_test
     )
-  else ()
-    message (STATUS "Cannot execute TEST flushrefresh - perl not found")
   endif ()
-endif()
+else ()
+  message (STATUS "Cannot execute TEST flushrefresh - perl not found")
+endif ()
 
 ##############################################################################
 ##############################################################################
@@ -1322,10 +1000,10 @@ endif ()
 ##############################################################################
 ##############################################################################
 
-if (HDF5_BUILD_GENERATORS)
+if (HDF5_BUILD_GENERATORS AND NOT ONLY_SHARED_LIBS)
   macro (ADD_H5_GENERATOR genfile)
     add_executable (${genfile} ${HDF5_TEST_SOURCE_DIR}/${genfile}.c)
-    target_include_directories(${genfile} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+    target_include_directories (${genfile} PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
     TARGET_C_PROPERTIES (${genfile} STATIC)
     target_link_libraries (${genfile} PRIVATE ${HDF5_TEST_LIB_TARGET} ${HDF5_LIB_TARGET})
     set_target_properties (${genfile} PROPERTIES FOLDER generator/test)
diff --git a/test/CMakeVFDTests.cmake b/test/CMakeVFDTests.cmake
index 383b2f4..0ddce92 100644
--- a/test/CMakeVFDTests.cmake
+++ b/test/CMakeVFDTests.cmake
@@ -34,37 +34,23 @@ foreach (vfdtest ${VFD_LIST})
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}")
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}/testfiles")
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}/testfiles/plist_files")
-  if (BUILD_SHARED_LIBS)
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}-shared")
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}-shared/testfiles")
-    file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/${vfdtest}-shared/testfiles/plist_files")
-  endif ()
 endforeach ()
 
 foreach (vfdtest ${VFD_LIST})
   foreach (h5_tfile ${HDF5_TEST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/${vfdtest}/${h5_tfile}" "HDF5_VFDTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TOOLS_DIR}/testfiles/${h5_tfile}" "${PROJECT_BINARY_DIR}/${vfdtest}-shared/${h5_tfile}" "HDF5_VFDTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 foreach (vfdtest ${VFD_LIST})
   foreach (ref_file ${HDF5_REFERENCE_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/${vfdtest}/${ref_file}" "HDF5_VFDTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/${ref_file}" "${PROJECT_BINARY_DIR}/${vfdtest}-shared/${ref_file}" "HDF5_VFDTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 foreach (vfdtest ${VFD_LIST})
   foreach (h5_file ${HDF5_REFERENCE_TEST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/${vfdtest}/${h5_file}" "HDF5_VFDTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/${h5_file}" "${HDF5_TEST_BINARY_DIR}/${vfdtest}-shared/${h5_file}" "HDF5_VFDTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
@@ -72,17 +58,10 @@ foreach (vfdtest ${VFD_LIST})
   foreach (plistfile ${HDF5_REFERENCE_PLIST_FILES})
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/${vfdtest}/testfiles/plist_files/${plistfile}" "HDF5_VFDTEST_LIB_files")
     HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/${vfdtest}/testfiles/plist_files/def_${plistfile}" "HDF5_VFDTEST_LIB_files")
-    if (BUILD_SHARED_LIBS)
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/${plistfile}" "${PROJECT_BINARY_DIR}/${vfdtest}-shared/testfiles/plist_files/${plistfile}" "HDF5_VFDTEST_LIBSH_files")
-      HDFTEST_COPY_FILE("${HDF5_TEST_SOURCE_DIR}/testfiles/plist_files/def_${plistfile}" "${PROJECT_BINARY_DIR}/${vfdtest}-shared/testfiles/plist_files/def_${plistfile}" "HDF5_VFDTEST_LIBSH_files")
-    endif ()
   endforeach ()
 endforeach ()
 
 add_custom_target(HDF5_VFDTEST_LIB_files ALL COMMENT "Copying files needed by HDF5_VFDTEST_LIB tests" DEPENDS ${HDF5_VFDTEST_LIB_files_list})
-if (BUILD_SHARED_LIBS)
-  add_custom_target(HDF5_VFDTEST_LIBSH_files ALL COMMENT "Copying files needed by HDF5_VFDTEST_LIBSH tests" DEPENDS ${HDF5_VFDTEST_LIBSH_files_list})
-endif ()
 
 ##############################################################################
 ##############################################################################
@@ -136,39 +115,10 @@ endif ()
               ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}"
               WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
           )
-          if (BUILD_SHARED_LIBS)
-            add_test (
-                NAME VFD-${vfdname}-${vfdtest}-shared-clear-objects
-                COMMAND    ${CMAKE_COMMAND}
-                    -E remove
-                        ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out
-                        ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out.err
-            )
-            add_test (NAME VFD-${vfdname}-${vfdtest}-shared
-                COMMAND "${CMAKE_COMMAND}"
-                    -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}-shared>"
-                    -D "TEST_ARGS:STRING="
-                    -D "TEST_VFD:STRING=${vfdname}"
-                    -D "TEST_EXPECT=${resultcode}"
-                    -D "TEST_OUTPUT=${vfdname}-${vfdtest}-shared.out"
-                    -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}-shared"
-                    -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-            )
-            set_tests_properties (VFD-${vfdname}-${vfdtest}-shared PROPERTIES
-                DEPENDS VFD-${vfdname}-${vfdtest}-shared-clear-objects
-                ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}-shared"
-                WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}-shared
-            )
-          endif ()
         else ()
           add_test (NAME VFD-${vfdname}-${vfdtest}
               COMMAND ${CMAKE_COMMAND} -E echo "SKIP VFD-${vfdname}-${vfdtest}"
           )
-          if (BUILD_SHARED_LIBS)
-            add_test (NAME VFD-${vfdname}-${vfdtest}-shared
-                COMMAND ${CMAKE_COMMAND} -E echo "SKIP VFD-${vfdname}-${vfdtest}-shared"
-            )
-          endif ()
         endif ()
       else ()
         add_test (
@@ -193,30 +143,6 @@ endif ()
             ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}"
             WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
         )
-        if (BUILD_SHARED_LIBS)
-          add_test (
-              NAME VFD-${vfdname}-${vfdtest}-shared-clear-objects
-              COMMAND    ${CMAKE_COMMAND}
-                  -E remove
-                      ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out
-                      ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out.err
-          )
-          add_test (NAME VFD-${vfdname}-${vfdtest}-shared
-              COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VFD:STRING=${vfdname}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${vfdname}-${vfdtest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}-shared"
-                -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-          )
-          set_tests_properties (VFD-${vfdname}-${vfdtest}-shared PROPERTIES
-              DEPENDS VFD-${vfdname}-${vfdtest}-shared-clear-objects
-              ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}-shared"
-              WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}-shared
-          )
-        endif ()
       endif ()
     else ()
       add_test (
@@ -241,80 +167,32 @@ endif ()
           ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname};HDF5TestExpress=${HDF_TEST_EXPRESS}"
           WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
       )
-      if (BUILD_SHARED_LIBS AND NOT "${vfdtest}" STREQUAL "cache")
-        add_test (
-            NAME VFD-${vfdname}-${vfdtest}-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out
-                    ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out.err
-        )
-        add_test (NAME VFD-${vfdname}-${vfdtest}-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VFD:STRING=${vfdname}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${vfdname}-${vfdtest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}-shared"
-                -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-        )
-        set_tests_properties (VFD-${vfdname}-${vfdtest}-shared PROPERTIES
-            DEPENDS VFD-${vfdname}-${vfdtest}-shared-clear-objects
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}-shared;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}-shared
-        )
-        endif ()
     endif ()
   endmacro ()
 
   macro (DO_VFD_TEST vfdtest vfdname resultcode)
-      add_test (
-          NAME VFD-${vfdname}-${vfdtest}-clear-objects
-          COMMAND    ${CMAKE_COMMAND}
-              -E remove
-                  ${vfdname}/${vfdname}-${vfdtest}.out
-                  ${vfdname}/${vfdname}-${vfdtest}.out.err
-      )
-      add_test (NAME VFD-${vfdname}-${vfdtest}
-          COMMAND "${CMAKE_COMMAND}"
-              -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}>"
-              -D "TEST_ARGS:STRING="
-              -D "TEST_VFD:STRING=${vfdname}"
-              -D "TEST_EXPECT=${resultcode}"
-              -D "TEST_OUTPUT=${vfdname}-${vfdtest}.out"
-              -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}"
-              -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-      )
-      set_tests_properties (VFD-${vfdname}-${vfdtest} PROPERTIES
-          DEPENDS VFD-${vfdname}-${vfdtest}-clear-objects
-          ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}"
-          WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
-      )
-      if (BUILD_SHARED_LIBS)
-        add_test (
-            NAME VFD-${vfdname}-${vfdtest}-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out
-                    ${vfdname}-shared/${vfdname}-${vfdtest}-shared.out.err
-        )
-        add_test (NAME VFD-${vfdname}-${vfdtest}-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VFD:STRING=${vfdname}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${vfdname}-${vfdtest}-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}-shared"
-                -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-        )
-        set_tests_properties (VFD-${vfdname}-${vfdtest}-shared PROPERTIES
-            DEPENDS VFD-${vfdname}-${vfdtest}-shared-clear-objects
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}-shared"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}-shared
-        )
-      endif ()
+    add_test (
+        NAME VFD-${vfdname}-${vfdtest}-clear-objects
+        COMMAND    ${CMAKE_COMMAND}
+            -E remove
+                ${vfdname}/${vfdname}-${vfdtest}.out
+                ${vfdname}/${vfdname}-${vfdtest}.out.err
+    )
+    add_test (NAME VFD-${vfdname}-${vfdtest}
+        COMMAND "${CMAKE_COMMAND}"
+            -D "TEST_PROGRAM=$<TARGET_FILE:${vfdtest}>"
+            -D "TEST_ARGS:STRING="
+            -D "TEST_VFD:STRING=${vfdname}"
+            -D "TEST_EXPECT=${resultcode}"
+            -D "TEST_OUTPUT=${vfdname}-${vfdtest}.out"
+            -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}"
+            -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
+    )
+    set_tests_properties (VFD-${vfdname}-${vfdtest} PROPERTIES
+        DEPENDS VFD-${vfdname}-${vfdtest}-clear-objects
+        ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}"
+        WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
+    )
   endmacro ()
 
   macro (ADD_VFD_TEST vfdname resultcode)
@@ -334,15 +212,6 @@ endif ()
     if (NOT CYGWIN)
       set_tests_properties (VFD-${vfdname}-cache PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
     endif ()
-    if (BUILD_SHARED_LIBS)
-      set_tests_properties (VFD-${vfdname}-flush2-shared PROPERTIES DEPENDS VFD-${vfdname}-flush1-shared)
-      set_tests_properties (VFD-${vfdname}-flush1-shared PROPERTIES TIMEOUT 10)
-      set_tests_properties (VFD-${vfdname}-flush2-shared PROPERTIES TIMEOUT 10)
-      set_tests_properties (VFD-${vfdname}-istore-shared PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-      if (NOT CYGWIN AND NOT WIN32)
-        set_tests_properties (VFD-${vfdname}-cache-shared PROPERTIES TIMEOUT ${CTEST_VERY_LONG_TIMEOUT})
-      endif ()
-    endif ()
     if (HDF5_TEST_FHEAP_VFD)
       add_test (
           NAME VFD-${vfdname}-fheap-clear-objects
@@ -367,31 +236,6 @@ endif ()
           ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname};HDF5TestExpress=${HDF_TEST_EXPRESS}"
           WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}
       )
-      if (BUILD_SHARED_LIBS)
-        add_test (
-            NAME VFD-${vfdname}-fheap-shared-clear-objects
-            COMMAND    ${CMAKE_COMMAND}
-                -E remove
-                    ${vfdname}-shared/${vfdname}-fheap-shared.out
-                    ${vfdname}-shared/${vfdname}-fheap-shared.out.err
-        )
-        add_test (NAME VFD-${vfdname}-fheap-shared
-            COMMAND "${CMAKE_COMMAND}"
-                -D "TEST_PROGRAM=$<TARGET_FILE:fheap-shared>"
-                -D "TEST_ARGS:STRING="
-                -D "TEST_VFD:STRING=${vfdname}"
-                -D "TEST_EXPECT=${resultcode}"
-                -D "TEST_OUTPUT=${vfdname}-fheap-shared.out"
-                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}/${vfdname}-shared"
-                -P "${HDF_RESOURCES_DIR}/vfdTest.cmake"
-        )
-        set_tests_properties (VFD-${vfdname}-fheap-shared PROPERTIES
-            DEPENDS VFD-${vfdname}-fheap-shared-clear-objects
-            TIMEOUT ${CTEST_VERY_LONG_TIMEOUT}
-            ENVIRONMENT "srcdir=${HDF5_TEST_BINARY_DIR}/${vfdname}-shared;HDF5TestExpress=${HDF_TEST_EXPRESS}"
-            WORKING_DIRECTORY ${HDF5_TEST_BINARY_DIR}/${vfdname}-shared
-        )
-      endif ()
     endif ()
   endmacro ()
 
diff --git a/test/fill18.h5 b/test/fill18.h5
new file mode 100644
index 0000000..c092f59
--- /dev/null
+++ b/test/fill18.h5
diff --git a/test/flushrefreshTest.cmake b/test/flushrefreshTest.cmake
index aa18c8a..73210ef 100644
--- a/test/flushrefreshTest.cmake
+++ b/test/flushrefreshTest.cmake
@@ -18,7 +18,7 @@ if (NOT TEST_PROGRAM)
   message (FATAL_ERROR "Require TEST_PROGRAM to be defined")
 endif ()
 if (NOT TEST_FOLDER)
-  message ( FATAL_ERROR "Require TEST_FOLDER to be defined")
+  message (FATAL_ERROR "Require TEST_FOLDER to be defined")
 endif ()
 if (NOT TEST_OUTPUT)
   message (FATAL_ERROR "Require TEST_OUTPUT to be defined")
@@ -169,4 +169,4 @@ endif ()
 message (STATUS "COMMAND Error: ${TEST_ERROR}")
 
 # everything went fine...
-message ("Passed")
+message (STATUS "Passed")
diff --git a/test/null_vol_connector.c b/test/null_vol_connector.c
index b78e859..5ed8545 100644
--- a/test/null_vol_connector.c
+++ b/test/null_vol_connector.c
@@ -15,8 +15,15 @@
  *              (registration, etc.).
  */
 
+
+/* Public HDF5 header */
+#include "hdf5.h"
+
+/* For HDF5 plugin functionality */
 #include "H5PLextern.h"
 
+
+/* This connector's header */
 #include "null_vol_connector.h"
 
 /* The VOL class struct */
diff --git a/test/objcopy.c b/test/objcopy.c
index df1c0e4..e646c87 100644
--- a/test/objcopy.c
+++ b/test/objcopy.c
@@ -2136,7 +2136,7 @@ test_copy_dataset_versionbounds(hid_t fcpl_src, hid_t fapl_src)
     char src_fname[NAME_BUF_SIZE];      /* Name of source file */
     char dst_fname[NAME_BUF_SIZE];      /* Name of destination file */
     H5F_libver_t low, high;             /* File format bounds */
-    unsigned srcdset_fillversion;       /* Fill version of source dataset */
+    unsigned srcdset_layoutversion;     /* Layout version of source dataset */
     int i, j;                           /* Local index variables */
     H5D_t *dsetp = NULL;                /* Pointer to internal dset structure */
     herr_t ret;                         /* Generic return value */
@@ -2179,7 +2179,8 @@ test_copy_dataset_versionbounds(hid_t fcpl_src, hid_t fapl_src)
 
     /* Get the internal dset ptr to get the fill version for verifying later */
     if ((dsetp = (H5D_t *)H5VL_object(did_src)) == NULL) TEST_ERROR
-    srcdset_fillversion = dsetp->shared->dcpl_cache.fill.version;
+
+    srcdset_layoutversion = dsetp->shared->layout.version;
 
     /* Close dataspace */
     if(H5Sclose(sid) < 0) TEST_ERROR
@@ -2224,9 +2225,9 @@ test_copy_dataset_versionbounds(hid_t fcpl_src, hid_t fapl_src)
             /* If copy failed, check if the failure is expected */
             if (ret < 0)
             {
-                /* Failure is valid if fill version of source dataset is
+                /* Failure is valid if layout version of source dataset is
                    greater than destination */
-                if (srcdset_fillversion <= H5O_fill_ver_bounds[high])
+                if (srcdset_layoutversion <= H5O_layout_ver_bounds[high])
                     TEST_ERROR
 
                 /* Close the DST file before continue */
@@ -5870,12 +5871,14 @@ compare_attribute_compound_vlstr(hid_t loc, hid_t loc2)
 {
     hid_t aid = -1, aid2 = -1;    /* Attribute IDs */
     hid_t tid = -1, tid2 = -1;    /* Datatype IDs */
+    hid_t sid = -1, sid2 = -1;    /* Dataspace IDs */
+    hid_t dxpl_id = -1;
     typedef struct {        /* Compound structure for the attribute */
     int i;
     char *v;
     } s1;
     s1 rbuf;            /* Buffer for data read */
-    s1 rbuf2;            /* Buffer for data read */
+    s1 rbuf2;           /* Buffer for data read */
 
     /* Open the attributes attached to the objects */
     if((aid = H5Aopen_by_idx(loc, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)0, H5P_DEFAULT, H5P_DEFAULT)) < 0)
@@ -5889,6 +5892,12 @@ compare_attribute_compound_vlstr(hid_t loc, hid_t loc2)
     if((tid2 = H5Aget_type(aid2)) < 0)
     FAIL_STACK_ERROR
 
+    /* Get the attributes' dataspaces */
+    if((sid = H5Aget_space(aid)) < 0)
+    FAIL_STACK_ERROR
+    if((sid2 = H5Aget_space(aid2)) < 0)
+    FAIL_STACK_ERROR
+
     /* Read the attributes */
     if(H5Aread(aid, tid, &rbuf) < 0)
     FAIL_STACK_ERROR
@@ -5903,6 +5912,19 @@ compare_attribute_compound_vlstr(hid_t loc, hid_t loc2)
     if(HDmemcmp(rbuf.v, rbuf2.v, HDstrlen(rbuf.v)))
     FAIL_STACK_ERROR
 
+    /* Reclaim vlen buffer */
+    if((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0) TEST_ERROR
+    if(H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0) TEST_ERROR
+    if(H5Dvlen_reclaim(tid, sid, dxpl_id, &rbuf) < 0) TEST_ERROR
+    if(H5Dvlen_reclaim(tid, sid, dxpl_id, &rbuf2) < 0) TEST_ERROR
+    if(H5Pclose(dxpl_id) < 0) TEST_ERROR
+
+    /* Close the dataspaces */
+    if(H5Sclose(sid) < 0)
+    FAIL_STACK_ERROR
+    if(H5Sclose(sid2) < 0)
+    FAIL_STACK_ERROR
+
     /* Close the attributes */
     if(H5Aclose(aid) < 0)
     FAIL_STACK_ERROR
@@ -5914,8 +5936,13 @@ error:
     H5E_BEGIN_TRY {
         H5Aclose(aid);
         H5Aclose(aid2);
+        H5Dvlen_reclaim(tid, sid, H5P_DEFAULT, &rbuf);
+        H5Dvlen_reclaim(tid, sid, H5P_DEFAULT, &rbuf2);
+        H5Sclose(sid);
+        H5Sclose(sid2);
         H5Tclose(tid);
         H5Tclose(tid2);
+        H5Pclose(dxpl_id);
     } H5E_END_TRY;
     return FALSE;
 
diff --git a/test/ohdr.c b/test/ohdr.c
index 9fc5791..d15e43b 100644
--- a/test/ohdr.c
+++ b/test/ohdr.c
@@ -751,27 +751,6 @@ error:
 } /* test_unknown() */
 
 /*
- * Set an attribute with the given information.
- * If the out parameter `attr_id` is negative, a new attribute will be
- * created with the given information. Else, it will attempt to update the
- * attribute with the new value.
- *
- * `dataspace_id` ignored if `attribute_id` >= 0
- */
-static herr_t
-put_attribute(hid_t loc_id, const char *attrname, const void *attrvalue, hid_t datatype_id, hid_t dataspace_id, hid_t *attribute_id)
-{   
-    if((*attribute_id) < 0) {
-        hid_t id = -1;
-        id = H5Acreate2(loc_id, attrname, datatype_id, dataspace_id, H5P_DEFAULT, H5P_DEFAULT);
-        if(id < 0) 
-            return FAIL;
-        *attribute_id = id;
-    }
-    return H5Awrite(*attribute_id, datatype_id, attrvalue);
-} /* put_attribute */
-
-/*
  * Count the number of attributes attached to an object.
  * Returns negative in event of error.
  */
@@ -830,216 +809,181 @@ oh_compare(hid_t did1, hid_t did2)
  * Conduct additions side-by-side with a standard datataset and one with
  * minimized dataset object headers.
  */
+#define ATTR_NAME_MAX   16
+#define ATTR_SHORT      "first"
+#define ATTR_LONG       "second"
+#define N_ATTRS         64
 static herr_t
 test_minimized_dset_ohdr_attribute_addition(hid_t fapl_id)
 {
-    hsize_t array_10[1]      = {10}; /* dataspace extent */
-    char    buffer[10]       = "";   /* to inspect string attribute */
-    int     a_out            = 0;
-    char    filename[512]    = "";
-    hid_t   int_type_id      = -1;
-    hid_t   char_type_id     = -1;
-    hid_t   dcpl_id          = -1;
-    hid_t   dspace_id        = -1;
-    hid_t   dspace_scalar_id = -1;
-    hid_t   dset_id          = -1;
-    hid_t   mindset_id       = -1;
-    hid_t   attr_1_id        = -1;
-    hid_t   attr_1a_id       = -1;
-    hid_t   attr_2_id        = -1;
-    hid_t   attr_2a_id       = -1;
-    hid_t   attr_3_id        = -1;
-    hid_t   attr_3a_id       = -1;
-    hid_t   file_id          = -1;
-    herr_t  ret;
-    int     count = 0;
-
-    TESTING("minimized dset object headers attribute additions")
-
-    /*********
-     * SETUP *
-     *********/
-
-    if(h5_fixname(FILENAME[1], fapl_id, filename, sizeof(filename)) == NULL)
-        TEST_ERROR
-
-    dspace_id = H5Screate_simple(1, array_10, NULL);
-    if(dspace_id < 0) TEST_ERROR
-
-    dspace_scalar_id = H5Screate(H5S_SCALAR);
-    if(dspace_scalar_id < 0) TEST_ERROR
-
-    char_type_id = H5Tcopy(H5T_NATIVE_CHAR);
-    if(char_type_id < 0) TEST_ERROR
-
-    int_type_id = H5Tcopy(H5T_NATIVE_INT);
-    if(int_type_id < 0) TEST_ERROR
-
-    dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
-    if(dcpl_id < 0) TEST_ERROR
-
-    ret = H5Pset_dset_no_attrs_hint(dcpl_id, TRUE);
-    if(ret < 0) TEST_ERROR
-
-    file_id = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
-    if(file_id < 0) TEST_ERROR
-
-    H5E_BEGIN_TRY {
-        count = count_attributes(dset_id);
-    } H5E_END_TRY;
-    if(count != -1) TEST_ERROR
-
-    dset_id = H5Dcreate2(file_id, "dataset", int_type_id, dspace_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-    if(dset_id < 0) TEST_ERROR
-
-    mindset_id  = H5Dcreate2(file_id, "mindataset", int_type_id, dspace_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
-    if(mindset_id < 0) TEST_ERROR
-
-    /********************
-     * TEST/DEMONSTRATE *
-     ********************/
-
-    /* -------------------
-     * no attributes added
-     */
+    hsize_t dims[1]             = {0};  /* dataspace extent */
+    char    filename[512]       = "";
+    char    attr_name[ATTR_NAME_MAX] = "";
+    hid_t   fid                 = H5I_INVALID_HID;
+    hid_t   dcpl_id             = H5I_INVALID_HID;
+    hid_t   sid                 = H5I_INVALID_HID;
+    hid_t   did                 = H5I_INVALID_HID;
+    hid_t   aid                 = H5I_INVALID_HID;
+    char    *in_buf             = NULL;
+    char    *out_buf            = NULL;
+    size_t  buf_size            = 0;
+    int     out_val             = 0;
+    int     in_val              = 0;
+    int     i;
+
+    TESTING("adding attributes to datasets created with H5Pset_dset_no_attrs_hint()")
+
+    /* Create the test file */
+    if(NULL == h5_fixname(FILENAME[1], fapl_id, filename, sizeof(filename)))
+        TEST_ERROR;
+    if((fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id)) == H5I_INVALID_HID)
+        TEST_ERROR;
 
-    count = count_attributes(dset_id);
-    if(count != 0) TEST_ERROR
-    count = count_attributes(mindset_id);
-    if(count != 0) TEST_ERROR
+    /* Set the 'no attrs' hint on the dcpl */
+    if((dcpl_id = H5Pcreate(H5P_DATASET_CREATE)) == H5I_INVALID_HID)
+        TEST_ERROR;
+    if(H5Pset_dset_no_attrs_hint(dcpl_id, TRUE) < 0)
+        TEST_ERROR;
 
-    /* -----------------
-     * add one attribute
-     */
-    ret = put_attribute(dset_id, "PURPOSE", "DEMO", char_type_id, dspace_id, &attr_1_id);
-    if(ret < 0) TEST_ERROR
+    /* The dataset doesn't need to contain data */
+    dims[0] = 0;
+    if((sid = H5Screate_simple(1, dims, NULL)) == H5I_INVALID_HID)
+        TEST_ERROR;
 
-    ret = put_attribute(mindset_id, "PURPOSE", "DEMO", char_type_id, dspace_id, &attr_1a_id);
-    if(ret < 0) TEST_ERROR
+    /* Create the dataset */
+    if((did = H5Dcreate2(fid, "H5Pset_dset_no_attrs_hint", H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl_id, H5P_DEFAULT)) == H5I_INVALID_HID)
+        TEST_ERROR;
 
-    count = count_attributes(dset_id);
-    if(count != 1) TEST_ERROR
-    count = count_attributes(mindset_id);
-    if(count != 1) TEST_ERROR
+    /* Close */
+    if(H5Pclose(dcpl_id) < 0)
+        TEST_ERROR;
+    if(H5Sclose(sid) < 0)
+        TEST_ERROR;
 
-    ret = H5Aread(attr_1_id, char_type_id, buffer);
-    if(ret < 0) TEST_ERROR
-    if(HDstrcmp("DEMO", buffer)) TEST_ERROR
+    /**********************************************
+     * ADD A (STRING) ATTRIBUTE AND MANIPULATE IT *
+     **********************************************/
 
-    ret = H5Aread(attr_1a_id, char_type_id, buffer);
-    if(ret < 0) TEST_ERROR
-    if(HDstrcmp("DEMO", buffer)) TEST_ERROR
+    buf_size = HDstrlen(ATTR_LONG) + 1;
+    if(NULL == (in_buf = (char *)HDcalloc(buf_size, sizeof(char))))
+        TEST_ERROR;
+    if(NULL == (out_buf = (char *)HDcalloc(buf_size, sizeof(char))))
+        TEST_ERROR;
 
-    /* -----------------
-     * modify one attribute
+    /* Create a string attribute on the dataset
+     *
+     * It has to be long enough to hold the longest string we're going to write
+     * to it.
      */
+    dims[0] = buf_size;
+    if((sid = H5Screate_simple(1, dims, NULL)) == H5I_INVALID_HID)
+        TEST_ERROR;
+    if((aid = H5Acreate2(did, "string_attr", H5T_NATIVE_CHAR, sid, H5P_DEFAULT, H5P_DEFAULT)) == H5I_INVALID_HID)
+        TEST_ERROR;
 
-    ret = put_attribute(dset_id, "PURPOSE", "REWRITE", char_type_id, -1, &attr_1_id);
-    if(ret < 0) TEST_ERROR
+    /* Write attribute data */
+    HDstrcpy(in_buf, ATTR_SHORT);
+    if(H5Awrite(aid, H5T_NATIVE_CHAR, in_buf) < 0)
+        TEST_ERROR;
 
-    ret = put_attribute(mindset_id, "PURPOSE", "REWRITE", char_type_id, -1, &attr_1a_id);
-    if(ret < 0) TEST_ERROR
+    /* Make sure the count is correct */
+    if(count_attributes(did) != 1)
+        TEST_ERROR;
 
-    count = count_attributes(dset_id);
-    if(count != 1) TEST_ERROR
-    count = count_attributes(mindset_id);
-    if(count != 1) TEST_ERROR
+    /* Read the data back and verify */
+    if(H5Aread(aid, H5T_NATIVE_CHAR, out_buf) < 0)
+        TEST_ERROR;
+    if(HDstrcmp(in_buf, out_buf))
+        TEST_ERROR;
 
-    ret = H5Aread(attr_1_id, char_type_id, buffer);
-    if(ret < 0) TEST_ERROR
-    if(HDstrcmp("REWRITE", buffer)) TEST_ERROR
+    /* modify the string attribute */
+    HDmemset(in_buf, 0, buf_size);
+    HDstrcpy(in_buf, ATTR_LONG);
+    if(H5Awrite(aid, H5T_NATIVE_CHAR, in_buf) < 0)
+        TEST_ERROR;
 
-    ret = H5Aread(attr_1a_id, char_type_id, buffer);
-    if(ret < 0) TEST_ERROR
-    if(HDstrcmp("REWRITE", buffer)) TEST_ERROR
+    if(count_attributes(did) != 1)
+        TEST_ERROR;
 
-    /* -----------------
-     * add second attribute
-     */
+    /* Read the data back and verify */
+    if(H5Aread(aid, H5T_NATIVE_CHAR, out_buf) < 0)
+        TEST_ERROR;
+    if(HDstrcmp(in_buf, out_buf))
+        TEST_ERROR;
 
-    a_out = 5;
-    ret = put_attribute(dset_id, "RANK", &a_out, int_type_id, dspace_scalar_id, &attr_2_id);
-    if(ret < 0) TEST_ERROR
+    /* Close */
+    if(H5Sclose(sid) < 0)
+        TEST_ERROR;
+    if(H5Aclose(aid) < 0)
+        TEST_ERROR;
 
-    a_out = 3;
-    ret = put_attribute(mindset_id, "RANK", &a_out, int_type_id, dspace_scalar_id, &attr_2a_id);
-    if(ret < 0) TEST_ERROR
+    /***************************************
+     * ADD A BUNCH OF (INTEGER) ATTRIBUTES *
+     ***************************************/
 
-    count = count_attributes(dset_id);
-    if(count != 2) TEST_ERROR
-    count = count_attributes(mindset_id);
-    if(count != 2) TEST_ERROR
+    if((sid = H5Screate(H5S_SCALAR)) == H5I_INVALID_HID)
+        TEST_ERROR;
 
-    ret = H5Aread(attr_2_id, int_type_id, &a_out);
-    if(ret < 0) TEST_ERROR
-    if(a_out != 5) TEST_ERROR
+    /* Loop over a reasonable number of attributes */
+    for(i = 0; i < N_ATTRS; i++) {
 
-    ret = H5Aread(attr_2a_id, int_type_id, &a_out);
-    if(ret < 0) TEST_ERROR
-    if(a_out != 3) TEST_ERROR
+        /* Set the attribute's name */
+        if(HDsnprintf(attr_name, ATTR_NAME_MAX, "int_attr_%d", i) < 0)
+            TEST_ERROR;
 
-    /* -----------------
-     * add third attribute
-     */
+        /* Create an integer attribute on the dataset */
+        if((aid = H5Acreate2(did, attr_name, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) == H5I_INVALID_HID)
+            TEST_ERROR;
 
-    a_out = -86;
-    ret = put_attribute(dset_id, "FLAVOR", &a_out, int_type_id, dspace_scalar_id, &attr_3_id);
-    if(ret < 0) TEST_ERROR
+        /* Write attribute data */
+        in_val = i;
+        if(H5Awrite(aid, H5T_NATIVE_INT, &in_val) < 0)
+            TEST_ERROR;
 
-    a_out = 2185;
-    ret = put_attribute(mindset_id, "FLAVOR", &a_out, int_type_id, dspace_scalar_id, &attr_3a_id);
-    if(ret < 0) TEST_ERROR
+        /* Make sure the count is correct (already has one attribute) */
+        if(count_attributes(did) != i + 2)
+            TEST_ERROR;
 
-    count = count_attributes(dset_id);
-    if(count != 3) TEST_ERROR
-    count = count_attributes(mindset_id);
-    if(count != 3) TEST_ERROR
+        /* Read the data back and verify */
+        if(H5Aread(aid, H5T_NATIVE_INT, &out_val) < 0)
+            TEST_ERROR;
+        if(in_val != out_val)
+            TEST_ERROR;
 
-    ret = H5Aread(attr_3_id, int_type_id, &a_out);
-    if(ret < 0) TEST_ERROR
-    if(a_out != -86) TEST_ERROR
+        /* Close */
+        if(H5Aclose(aid) < 0)
+            TEST_ERROR;
+    }
 
-    ret = H5Aread(attr_3a_id, int_type_id, &a_out);
-    if(ret < 0) TEST_ERROR
-    if(a_out != 2185) TEST_ERROR
+    /* Close */
+    if(H5Sclose(sid) < 0)
+        TEST_ERROR;
 
-    /************
-     * TEARDOWN *
-     ************/
+    /* Close the remaining IDs */
+    if(H5Dclose(did) < 0)
+        TEST_ERROR;
+    if(H5Fclose(fid) < 0)
+        TEST_ERROR;
 
-    if(H5Tclose(int_type_id) < 0) TEST_ERROR
-    if(H5Tclose(char_type_id) < 0) TEST_ERROR
-    if(H5Pclose(dcpl_id) < 0) TEST_ERROR
-    if(H5Sclose(dspace_id) < 0) TEST_ERROR
-    if(H5Dclose(dset_id) < 0) TEST_ERROR
-    if(H5Dclose(mindset_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_1_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_1a_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_2_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_2a_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_3_id) < 0) TEST_ERROR
-    if(H5Aclose(attr_3a_id) < 0) TEST_ERROR
-    if(H5Fclose(file_id) < 0) TEST_ERROR
+    /* Free memory */
+    HDfree(in_buf);
+    HDfree(out_buf);
 
-    PASSED()
+    PASSED();
     return SUCCEED;
 
 error :
     H5E_BEGIN_TRY {
-        (void)H5Tclose(int_type_id);
-        (void)H5Tclose(char_type_id);
         (void)H5Pclose(dcpl_id);
-        (void)H5Sclose(dspace_id);
-        (void)H5Dclose(dset_id);
-        (void)H5Dclose(mindset_id);
-        (void)H5Aclose(attr_1_id);
-        (void)H5Aclose(attr_1a_id);
-        (void)H5Aclose(attr_2_id);
-        (void)H5Aclose(attr_2a_id);
-        (void)H5Aclose(attr_3_id);
-        (void)H5Aclose(attr_3a_id);
-        (void)H5Fclose(file_id);
+        (void)H5Sclose(sid);
+        (void)H5Dclose(did);
+        (void)H5Aclose(aid);
+        (void)H5Fclose(fid);
     } H5E_END_TRY;
+
+    HDfree(in_buf);
+    HDfree(out_buf);
+
     return FAIL;
 } /* test_minimized_dset_ohdr_attribute_addition */
 
@@ -1085,19 +1029,24 @@ test_minimized_dset_ohdr_size_comparisons(hid_t fapl_id)
      * file-minimized |   F_x   |   F_Y    |   F_N
      */
 
-    TESTING("minimized dset object headers size comparisons");
 
     /*********
      * SETUP *
      *********/
 
+    /* Set filenames (not in a test, can't use TEST_ERROR) */
     if(h5_fixname(FILENAME[1], fapl_id, filename_a, sizeof(filename_a)) == NULL)
-        TEST_ERROR
-
+        return FAIL;
     if(h5_fixname(FILENAME[2], fapl_id, filename_b, sizeof(filename_b)) == NULL)
-        TEST_ERROR
+        return FAIL;
 
     for (compact = 0; compact < 2; compact++) { /* 0 or 1 */
+
+        if(compact)
+            TESTING("minimized dset object headers size comparisons (compact)")
+        else
+            TESTING("minimized dset object headers size comparisons")
+
         dcpl_default = H5Pcreate(H5P_DATASET_CREATE);
         if(dcpl_default < 0) TEST_ERROR
  
@@ -1112,15 +1061,13 @@ test_minimized_dset_ohdr_size_comparisons(hid_t fapl_id)
         if(ret < 0) TEST_ERROR
 
         if(compact) {
-            HDprintf("...compact ");
             ret = H5Pset_layout(dcpl_default, H5D_COMPACT);
             if(ret < 0) TEST_ERROR
             ret = H5Pset_layout(dcpl_minimize, H5D_COMPACT);
             if(ret < 0) TEST_ERROR
             ret = H5Pset_layout(dcpl_dontmin, H5D_COMPACT);
             if(ret < 0) TEST_ERROR
-        } else 
-            HDprintf("...not compact ");
+        }
 
         dspace_id = H5Screate_simple(1, array_10, NULL);
         if(dspace_id < 0) TEST_ERROR
@@ -1191,9 +1138,10 @@ test_minimized_dset_ohdr_size_comparisons(hid_t fapl_id)
         if(H5Dclose(dset_F_N_id) < 0) TEST_ERROR
         if(H5Dclose(dset_F_Y_id) < 0) TEST_ERROR
 
+        PASSED()
+
     } /* compact and non-compact */
 
-    PASSED()
     return SUCCEED;
 
 error :
diff --git a/test/tattr.c b/test/tattr.c
index 37763da..b83ed9f 100644
--- a/test/tattr.c
+++ b/test/tattr.c
@@ -581,107 +581,118 @@ test_attr_flush(hid_t fapl)
 static void
 test_attr_plist(hid_t fapl)
 {
-    hid_t        fid1;           /* HDF5 File IDs        */
-    hid_t        dataset;        /* Dataset ID            */
-    hid_t        sid1,sid2;      /* Dataspace ID            */
-    hid_t        attr;           /* Attribute ID        */
-    hid_t        plist;          /* Property list ID             */
-    hsize_t      dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
-    hsize_t      dims2[] = {ATTR1_DIM1};
-    H5T_cset_t   cset;           /* Character set for attributes */
-    herr_t       ret;            /* Generic return value        */
+    hid_t       fid = H5I_INVALID_HID;          /* File ID */
+    hid_t       did = H5I_INVALID_HID;          /* Dataset ID */
+    hid_t       dsid = H5I_INVALID_HID;         /* Dataspace ID (for dataset) */
+    hid_t       asid = H5I_INVALID_HID;         /* Dataspace ID (for attribute) */
+    hid_t       aid = H5I_INVALID_HID;          /* Attribute ID */
+    hid_t       acpl_id = H5I_INVALID_HID;      /* Attribute creation property list ID */
+    hid_t       aapl_id = H5I_INVALID_HID;      /* Attribute access property list ID */
+    hsize_t     dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
+    hsize_t     dims2[] = {ATTR1_DIM1};
+    H5T_cset_t  cset;                           /* Character set for attributes */
+    herr_t      ret;                            /* Generic return value */
 
     /* Output message about test being performed */
     MESSAGE(5, ("Testing Attribute Property Lists\n"));
 
     /* Create file */
-    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
-    CHECK(fid1, FAIL, "H5Fcreate");
+    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    CHECK(fid, H5I_INVALID_HID, "H5Fcreate");
 
     /* Create dataspace for dataset */
-    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
-    CHECK(sid1, FAIL, "H5Screate_simple");
+    dsid = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+    CHECK(dsid, H5I_INVALID_HID, "H5Screate_simple");
 
     /* Create a dataset */
-    dataset = H5Dcreate2(fid1, DSET1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, dcpl_g, H5P_DEFAULT);
-    CHECK(dataset, FAIL, "H5Dcreate2");
+    did = H5Dcreate2(fid, DSET1_NAME, H5T_NATIVE_UCHAR, dsid, H5P_DEFAULT, dcpl_g, H5P_DEFAULT);
+    CHECK(did, H5I_INVALID_HID, "H5Dcreate2");
 
     /* Create dataspace for attribute */
-    sid2 = H5Screate_simple(ATTR1_RANK, dims2, NULL);
-    CHECK(sid2, FAIL, "H5Screate_simple");
+    asid = H5Screate_simple(ATTR1_RANK, dims2, NULL);
+    CHECK(asid, H5I_INVALID_HID, "H5Screate_simple");
+
+    /* Create default creation property list for attribute */
+    acpl_id = H5Pcreate(H5P_ATTRIBUTE_CREATE);
+    CHECK(acpl_id, H5I_INVALID_HID, "H5Pcreate");
 
-    /* Create default property list for attribute */
-    plist = H5Pcreate(H5P_ATTRIBUTE_CREATE);
-    CHECK(plist, FAIL, "H5Pcreate");
+    /* Create default access property list for attribute
+     * This currently has no properties, but we need to test its creation
+     * and use.
+     */
+    aapl_id = H5Pcreate(H5P_ATTRIBUTE_ACCESS);
+    CHECK(aapl_id, H5I_INVALID_HID, "H5Pcreate");
 
     /* Get the character encoding and ensure that it is the default (ASCII) */
-    ret = H5Pget_char_encoding(plist, &cset);
+    ret = H5Pget_char_encoding(acpl_id, &cset);
     CHECK(ret, FAIL, "H5Pget_char_encoding");
     VERIFY(cset, H5T_CSET_ASCII, "H5Pget_char_encoding");
 
     /* Create an attribute for the dataset using the property list */
-    attr = H5Acreate2(dataset, ATTR1_NAME, H5T_NATIVE_INT, sid2, plist, H5P_DEFAULT);
-    CHECK(attr, FAIL, "H5Acreate2");
+    aid = H5Acreate2(did, ATTR1_NAME, H5T_NATIVE_INT, asid, acpl_id, aapl_id);
+    CHECK(aid, H5I_INVALID_HID, "H5Acreate2");
 
-    /* Close the property list, and get the attribute's property list */
-    ret = H5Pclose(plist);
+    /* Close the property list, and get the attribute's creation property list */
+    ret = H5Pclose(acpl_id);
     CHECK(ret, FAIL, "H5Pclose");
-    plist = H5Aget_create_plist(attr);
-    CHECK(plist, FAIL, "H5Aget_create_plist");
+    acpl_id = H5Aget_create_plist(aid);
+    CHECK(acpl_id, H5I_INVALID_HID, "H5Aget_create_plist");
 
     /* Get the character encoding and ensure that it is the default (ASCII) */
-    ret = H5Pget_char_encoding(plist, &cset);
+    ret = H5Pget_char_encoding(acpl_id, &cset);
     CHECK(ret, FAIL, "H5Pget_char_encoding");
     VERIFY(cset, H5T_CSET_ASCII, "H5Pget_char_encoding");
 
     /* Close the property list and attribute */
-    ret = H5Pclose(plist);
+    ret = H5Pclose(acpl_id);
     CHECK(ret, FAIL, "H5Pclose");
-    ret = H5Aclose(attr);
+    ret = H5Aclose(aid);
     CHECK(ret, FAIL, "H5Aclose");
 
     /* Create a new property list and modify it to use a different encoding */
-    plist = H5Pcreate(H5P_ATTRIBUTE_CREATE);
-    CHECK(plist, FAIL, "H5Pcreate");
-    ret = H5Pset_char_encoding(plist, H5T_CSET_UTF8);
+    acpl_id = H5Pcreate(H5P_ATTRIBUTE_CREATE);
+    CHECK(acpl_id, H5I_INVALID_HID, "H5Pcreate");
+    ret = H5Pset_char_encoding(acpl_id, H5T_CSET_UTF8);
     CHECK(ret, FAIL, "H5Pset_char_encoding");
 
     /* Get the character encoding and ensure that it has been changed */
-    ret = H5Pget_char_encoding(plist, &cset);
+    ret = H5Pget_char_encoding(acpl_id, &cset);
     CHECK(ret, FAIL, "H5Pget_char_encoding");
     VERIFY(cset, H5T_CSET_UTF8, "H5Pget_char_encoding");
 
     /* Create an attribute for the dataset using the modified property list */
-    attr = H5Acreate2(dataset, ATTR2_NAME, H5T_NATIVE_INT, sid2, plist, H5P_DEFAULT);
-    CHECK(attr, FAIL, "H5Acreate2");
+    aid = H5Acreate2(did, ATTR2_NAME, H5T_NATIVE_INT, asid, acpl_id, aapl_id);
+    CHECK(aid, H5I_INVALID_HID, "H5Acreate2");
 
     /* Close the property list and attribute */
-    ret = H5Pclose(plist);
+    ret = H5Pclose(acpl_id);
     CHECK(ret, FAIL, "H5Pclose");
-    ret = H5Aclose(attr);
+    ret = H5Aclose(aid);
     CHECK(ret, FAIL, "H5Aclose");
 
     /* Re-open the second attribute and ensure that its character encoding is correct */
-    attr = H5Aopen(dataset, ATTR2_NAME, H5P_DEFAULT);
-    CHECK(attr, FAIL, "H5Aopen");
-    plist = H5Aget_create_plist(attr);
-    CHECK(plist, FAIL, "H5Aget_create_plist");
-    ret = H5Pget_char_encoding(plist, &cset);
+    aid = H5Aopen(did, ATTR2_NAME, H5P_DEFAULT);
+    CHECK(aid, H5I_INVALID_HID, "H5Aopen");
+    acpl_id = H5Aget_create_plist(aid);
+    CHECK(acpl_id, H5I_INVALID_HID, "H5Aget_create_plist");
+    ret = H5Pget_char_encoding(acpl_id, &cset);
     CHECK(ret, FAIL, "H5Pget_char_encoding");
     VERIFY(cset, H5T_CSET_UTF8, "H5Pget_char_encoding");
 
     /* Close everything */
-    ret=H5Sclose(sid1);
+    ret = H5Sclose(dsid);
     CHECK(ret, FAIL, "H5Sclose");
-    ret=H5Sclose(sid2);
+    ret = H5Sclose(asid);
     CHECK(ret, FAIL, "H5Sclose");
-    ret = H5Pclose(plist);
+    ret = H5Pclose(aapl_id);
+    CHECK(ret, FAIL, "H5Pclose");
+    ret = H5Pclose(acpl_id);
     CHECK(ret, FAIL, "H5Pclose");
-    ret=H5Aclose(attr);
+    ret = H5Aclose(aid);
     CHECK(ret, FAIL, "H5Aclose");
-    ret=H5Dclose(dataset);
+    ret = H5Dclose(did);
     CHECK(ret, FAIL, "H5Dclose");
-    ret=H5Fclose(fid1);
+    ret = H5Fclose(fid);
     CHECK(ret, FAIL, "H5Fclose");
 }  /* test_attr_plist() */
 
diff --git a/test/tfile.c b/test/tfile.c
index 695d437..140bd14 100644
--- a/test/tfile.c
+++ b/test/tfile.c
@@ -169,6 +169,15 @@ const char *FILESPACE_NAME[] = {
     NULL
 };
 
+
+/* Declarations for test_libver_bounds_copy():                          */
+/* SRC_FILE: source file created under 1.8 branch with latest format    */
+/* DST_FILE: destination file for copying the dataset in SRC_FILE       */
+/* DSET_DS1: the dataset created in SRC_FILE to be copied to DST_FILE   */
+#define SRC_FILE        "fill18.h5"
+#define DST_FILE        "fill18_copy.h5"
+#define DSET_DS1        "DS1"
+
 /* Local test function declarations for version bounds */
 static void test_libver_bounds_low_high(void);
 static void test_libver_bounds_super(hid_t fapl);
@@ -1850,6 +1859,102 @@ test_file_ishdf5(const char *env_h5_drvr)
 } /* end test_file_ishdf5() */
 #endif /* H5_NO_DEPRECATED_SYMBOLS */
 
+
+/****************************************************************
+**
+**  test_file_delete(): tests H5Fdelete for all VFDs
+**
+*****************************************************************/
+#define FILE_DELETE             "test_file_delete"
+#define FILE_DELETE_NOT_HDF5    "test_file_delete_not_hdf5"
+static void
+test_file_delete(hid_t fapl_id)
+{
+    hid_t       fid = H5I_INVALID_HID;  /* File to be deleted */
+    char        filename[FILENAME_LEN]; /* Filename to use */
+    htri_t      is_hdf5;                /* Whether a file is an HDF5 file */
+    int         fd;                     /* POSIX file descriptor */
+    int         iret;
+    herr_t      ret;
+
+    /* Output message about test being performed */
+    MESSAGE(5, ("Testing Deletion of HDF5 Files\n"));
+
+    /*************/
+    /* HDF5 FILE */
+    /*************/
+
+    /* This is just a placeholder until the native VOL connector supports
+     * H5Fdelete().
+     */
+
+    /* Get fapl-dependent filename */
+    h5_fixname(FILE_DELETE, fapl_id, filename, sizeof(filename));
+
+    /* Create a file */
+    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
+    CHECK(fid, H5I_INVALID_HID, "H5Fcreate");
+
+    /* Close file */
+    ret = H5Fclose(fid);
+    VERIFY(ret, SUCCEED, "H5Fclose");
+
+    /* Verify that the file is an HDF5 file */
+    is_hdf5 = H5Fis_accessible(filename, fapl_id);
+    VERIFY(is_hdf5, TRUE, "H5Fis_accessible");
+
+    /* Attempt to delete the file - should fail */
+    H5E_BEGIN_TRY {
+        ret = H5Fdelete(filename, fapl_id);
+    } H5E_END_TRY;
+    VERIFY(ret, FAIL, "H5Fdelete");
+
+    /* Verify that the file still exists */
+    is_hdf5 = H5Fis_accessible(filename, fapl_id);
+    VERIFY(is_hdf5, TRUE, "H5Fis_accessible");
+
+    /* Actually delete the test file */
+    h5_delete_test_file(FILE_DELETE, fapl_id);
+
+    /*****************/
+    /* NON-HDF5 FILE */
+    /*****************/
+
+    /* Get fapl-dependent filename */
+    h5_fixname(FILE_DELETE_NOT_HDF5, fapl_id, filename, sizeof(filename));
+
+    /* Create a non-HDF5 file */
+    fd = HDopen(filename, O_RDWR | O_CREAT | O_TRUNC, H5_POSIX_CREATE_MODE_RW);
+    CHECK_I(fd, "HDopen");
+
+    /* Close the file */
+    ret = HDclose(fd);
+    VERIFY(ret, 0, "HDclose");
+
+    /* Verify that the file is not an HDF5 file */
+    /* Note that you can get a FAIL result when h5_fixname()
+     * perturbs the filename as a file with that exact name
+     * may not have been created since we created it with
+     * open(2) and not the library.
+     */
+    H5E_BEGIN_TRY {
+        is_hdf5 = H5Fis_accessible(filename, fapl_id);
+    } H5E_END_TRY;
+    CHECK(is_hdf5, TRUE, "H5Fis_accessible");
+
+    /* Try to delete it (should fail) */
+    H5E_BEGIN_TRY {
+        ret = H5Fdelete(filename, fapl_id);
+    } H5E_END_TRY;
+    VERIFY(ret, FAIL, "H5Fdelete");
+
+    /* Delete the file */
+    iret = HDremove(filename);
+    VERIFY(iret, 0, "HDremove");
+
+} /* end test_file_delete() */
+
+
 /****************************************************************
 **
 **  test_file_open_dot(): low-level file test routine.
@@ -5277,6 +5382,79 @@ test_libver_bounds_open(void)
 } /* end test_libver_bounds_open() */
 
 
+/*-------------------------------------------------------------------------
+ * Function:    test_libver_bounds_copy
+ *
+ * Purpose:     Test to verify HDFFV-10800 is fixed:
+ *              This test is copied from the user test program: copy10.c.
+ *              (See attached programs in the jira issue.)
+ *
+ *              The source file used in the test is generated by the user test 
+ *              program "fill18.c" with the 1.8 library.  The file is created 
+ *              with the latest format and the dataset created in the file
+ *              has version 3 fill value message (latest).
+ *
+ *              The test creates the destination file with (v18, v18) version bounds.
+ *              H5Ocopy() should succeed in copying the dataset in the source file 
+ *              to the destination file.
+ *
+ * Return:      Success:    0
+ *              Failure:    number of errors
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+test_libver_bounds_copy(void)
+{
+    hid_t src_fid = -1;     /* File ID */
+    hid_t dst_fid = -1;     /* File ID */
+    hid_t fapl = -1;        /* File access property list ID */
+    const char *src_fname;  /* Source file name */
+    herr_t ret;             /* Generic return value */
+
+    /* Output message about the test being performed */
+    MESSAGE(5, ("Testing H5Ocopy a dataset in a 1.8 library file to a 1.10 library file\n"));
+
+    /* Get the test file name */
+    src_fname = H5_get_srcdir_filename(SRC_FILE); 
+
+    /* Open the source test file */
+    src_fid = H5Fopen(src_fname, H5F_ACC_RDONLY, H5P_DEFAULT);
+    CHECK(src_fid, FAIL, "H5Fopen");
+
+    /* Create file access property list */
+    fapl = H5Pcreate(H5P_FILE_ACCESS);
+    CHECK(fapl, FAIL, "H5Pcreate");
+
+    /* Set library version bounds to (v18, v18) */
+    ret = H5Pset_libver_bounds(fapl, H5F_LIBVER_V18, H5F_LIBVER_V18);
+    CHECK(ret, FAIL, "H5Pset_libver_bounds");
+
+    /* Create the destination file with the fapl */
+    dst_fid = H5Fcreate(DST_FILE, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    CHECK(dst_fid, FAIL, "H5Pcreate");
+
+    /* Close the fapl */
+    ret = H5Pclose(fapl);
+    CHECK(ret, FAIL, "H5Pclose");
+
+    /* Copy the dataset in the source file to the destination file */
+    ret = H5Ocopy(src_fid, DSET_DS1, dst_fid, DSET_DS1, H5P_DEFAULT, H5P_DEFAULT);
+    VERIFY(ret, SUCCEED, "H5Ocopy");
+
+    /* Close the source file */
+    ret = H5Fclose(src_fid);
+    CHECK(ret, FAIL, "H5Fclose");
+
+    /* Close the destination file */
+    ret = H5Fclose(dst_fid);
+    CHECK(ret, FAIL, "H5Fclose");
+
+    /* Remove the destination file */
+    HDremove(DST_FILE);
+
+} /* end test_libver_bounds_copy() */
+
 /****************************************************************
 **
 **  test_libver_bounds():
@@ -5295,6 +5473,7 @@ test_libver_bounds(void)
     test_libver_bounds_real(H5F_LIBVER_EARLIEST, 1, H5F_LIBVER_LATEST, 2);
     test_libver_bounds_real(H5F_LIBVER_LATEST, 2, H5F_LIBVER_EARLIEST, 2);
     test_libver_bounds_open();
+    test_libver_bounds_copy();
 } /* end test_libver_bounds() */
 
 /**************************************************************************************
@@ -7606,6 +7785,8 @@ void
 test_file(void)
 {
     const char  *env_h5_drvr;         /* File Driver value from environment */
+    hid_t fapl_id = H5I_INVALID_HID;    /* VFD-dependent fapl ID */
+    herr_t   ret;
 
     /* Output message about test being performed */
     MESSAGE(5, ("Testing Low-Level File I/O\n"));
@@ -7615,6 +7796,10 @@ test_file(void)
     if(env_h5_drvr == NULL)
         env_h5_drvr = "nomatch";
 
+    /* Improved version of VFD-dependent checks */
+    fapl_id = h5_fileaccess();
+    CHECK(fapl_id, H5I_INVALID_HID, "h5_fileaccess");
+
     test_file_create();                         /* Test file creation(also creation templates)*/
     test_file_open();                           /* Test file opening */
     test_file_reopen();                         /* Test file reopening */
@@ -7624,6 +7809,7 @@ test_file(void)
     test_file_perm();                           /* Test file access permissions */
     test_file_perm2();                          /* Test file access permission again */
     test_file_is_accessible(env_h5_drvr);       /* Test detecting HDF5 files correctly */
+    test_file_delete(fapl_id);                  /* Test H5Fdelete */
     test_file_open_dot();                       /* Test opening objects with "." for a name */
     test_file_open_overlap();                   /* Test opening files in an overlapping manner */
     test_file_getname();                        /* Test basic H5Fget_name() functionality */
@@ -7662,6 +7848,10 @@ test_file(void)
     test_file_ishdf5(env_h5_drvr);              /* Test detecting HDF5 files correctly */
     test_deprec();                              /* Test deprecated routines */
 #endif /* H5_NO_DEPRECATED_SYMBOLS */
+
+    ret = H5Pclose(fapl_id);
+    CHECK(ret, FAIL, "H5Pclose");
+
 } /* test_file() */
 
 
@@ -7690,5 +7880,6 @@ cleanup_file(void)
     HDremove(FILE5);
     HDremove(FILE6);
     HDremove(FILE7);
+    HDremove(DST_FILE);
 }
 
diff --git a/test/tselect.c b/test/tselect.c
index 842fe17..d912df5 100644
--- a/test/tselect.c
+++ b/test/tselect.c
@@ -173,6 +173,9 @@
 #define SPACE13_DIM3    50
 #define SPACE13_NPOINTS 4
 
+/* Information for testing selection iterators */
+#define SEL_ITER_MAX_SEQ        256
+
 
 /* Location comparison function */
 static int compare_size_t(const void *s1, const void *s2);
@@ -4918,6 +4921,466 @@ test_select_hyper_union(void)
 
 /****************************************************************
 **
+**  test_select_hyper_union_stagger(): Test basic H5S (dataspace) selection code.
+**      Tests unions of staggered hyperslabs.  (Uses H5Scombine_hyperslab
+**      and H5Smodify_select instead of H5Sselect_hyperslab)
+**
+****************************************************************/
+static void
+test_select_hyper_union_stagger(void)
+{
+    hid_t file_id;      /* File ID */
+    hid_t dset_id;      /* Dataset ID */
+    hid_t dataspace;    /* File dataspace ID */
+    hid_t memspace;     /* Memory dataspace ID */
+    hid_t tmp_space;    /* Temporary dataspace ID */
+    hid_t tmp2_space;   /* Another emporary dataspace ID */
+    hsize_t dimsm[2]={7,7}; /* Memory array dimensions */
+    hsize_t dimsf[2]={6,5}; /* File array dimensions */
+    hsize_t count[2]={3,1}; /* 1st Hyperslab size */
+    hsize_t count2[2]={3,1}; /* 2nd Hyperslab size */
+    hsize_t count3[2]={2,1}; /* 3rd Hyperslab size */
+    hsize_t start[2]={0,0};  /* 1st Hyperslab offset */
+    hsize_t start2[2]={2,1}; /* 2nd Hyperslab offset */
+    hsize_t start3[2]={4,2}; /* 3rd Hyperslab offset */
+    hsize_t count_out[2]={4,2}; /* Hyperslab size in memory */
+    hsize_t start_out[2]={0,3}; /* Hyperslab offset in memory */
+    int data[6][5];     /* Data to write */
+    int data_out[7][7]; /* Data read in */
+    int input_loc[8][2]={{0,0},
+                         {1,0},
+                         {2,0},
+                         {2,1},
+                         {3,1},
+                         {4,1},
+                         {4,2},
+                         {5,2}};
+    int output_loc[8][2]={{0,3},
+                         {0,4},
+                         {1,3},
+                         {1,4},
+                         {2,3},
+                         {2,4},
+                         {3,3},
+                         {3,4}};
+    int dsetrank=2;     /* File Dataset rank */
+    int memrank=2;      /* Memory Dataset rank */
+    int i,j;            /* Local counting variables */
+    herr_t error;
+    hsize_t stride[2]={1,1};
+    hsize_t block[2]={1,1};
+
+    /* Initialize data to write */
+    for(i=0; i<6; i++)
+        for(j=0; j<5; j++)
+           data[i][j] = j*10 + i;
+
+    /* Create file */
+    file_id=H5Fcreate(FILENAME,H5F_ACC_TRUNC,H5P_DEFAULT,H5P_DEFAULT);
+    CHECK(file_id, FAIL, "H5Fcreate");
+
+    /* Create File Dataspace */
+    dataspace=H5Screate_simple(dsetrank,dimsf,NULL);
+    CHECK(dataspace, FAIL, "H5Screate_simple");
+
+    /* Create File Dataset */
+    dset_id=H5Dcreate2(file_id,"IntArray",H5T_NATIVE_INT,dataspace,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(dset_id, FAIL, "H5Dcreate2");
+
+    /* Write File Dataset */
+    error=H5Dwrite(dset_id,H5T_NATIVE_INT,dataspace,dataspace,H5P_DEFAULT,data);
+    CHECK(error, FAIL, "H5Dwrite");
+
+    /* Close things */
+    error=H5Sclose(dataspace);
+    CHECK(error, FAIL, "H5Sclose");
+    error = H5Dclose(dset_id);
+    CHECK(error, FAIL, "H5Dclose");
+    error = H5Fclose(file_id);
+    CHECK(error, FAIL, "H5Fclose");
+
+    /* Initialize intput buffer */
+    memset(data_out, 0, 7 * 7 * sizeof(int));
+
+    /* Open file */
+    file_id = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
+    CHECK(file_id, FAIL, "H5Fopen");
+
+    /* Open dataset */
+    dset_id = H5Dopen2(file_id, "IntArray", H5P_DEFAULT);
+    CHECK(dset_id, FAIL, "H5Dopen2");
+
+    /* Get the dataspace */
+    dataspace = H5Dget_space(dset_id);
+    CHECK(dataspace, FAIL, "H5Dget_space");
+
+    /* Select the hyperslabs */
+    error = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, start, stride, count, block);
+    CHECK(error, FAIL, "H5Sselect_hyperslab");
+    tmp_space = H5Scombine_hyperslab(dataspace, H5S_SELECT_OR, start2, stride, count2, block);
+    CHECK(tmp_space, FAIL, "H5Scombine_hyperslab");
+
+    /* Copy the file dataspace and select hyperslab */
+    tmp2_space = H5Scopy(dataspace);
+    CHECK(tmp2_space, FAIL, "H5Scopy");
+    error=H5Sselect_hyperslab(tmp2_space, H5S_SELECT_SET, start3, stride, count3, block);
+    CHECK(error, FAIL, "H5Sselect_hyperslab");
+
+    /* Combine the copied dataspace with the temporary dataspace */
+    error=H5Smodify_select(tmp_space,H5S_SELECT_OR,tmp2_space);
+    CHECK(error, FAIL, "H5Smodify_select");
+
+    /* Create Memory Dataspace */
+    memspace=H5Screate_simple(memrank,dimsm,NULL);
+    CHECK(memspace, FAIL, "H5Screate_simple");
+
+    /* Select hyperslab in memory */
+    error=H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start_out, stride, count_out, block);
+    CHECK(error, FAIL, "H5Sselect_hyperslab");
+
+    /* Read File Dataset */
+    error=H5Dread(dset_id,H5T_NATIVE_INT,memspace,tmp_space,H5P_DEFAULT,data_out);
+    CHECK(error, FAIL, "H5Dread");
+
+    /* Verify input data */
+    for(i=0; i<8; i++) {
+        if(data[input_loc[i][0]][input_loc[i][1]]!=data_out[output_loc[i][0]][output_loc[i][1]]) {
+            printf("input data #%d is wrong!\n",i);
+            printf("input_loc=[%d][%d]\n",input_loc[i][0],input_loc[i][1]);
+            printf("output_loc=[%d][%d]\n",output_loc[i][0],output_loc[i][1]);
+            printf("data=%d\n",data[input_loc[i][0]][input_loc[i][1]]);
+            TestErrPrintf("data_out=%d\n",data_out[output_loc[i][0]][output_loc[i][1]]);
+        } /* end if */
+    } /* end for */
+
+    /* Close things */
+    error=H5Sclose(tmp2_space);
+    CHECK(error, FAIL, "H5Sclose");
+    error=H5Sclose(tmp_space);
+    CHECK(error, FAIL, "H5Sclose");
+    error=H5Sclose(dataspace);
+    CHECK(error, FAIL, "H5Sclose");
+    error=H5Sclose(memspace);
+    CHECK(error, FAIL, "H5Sclose");
+    error=H5Dclose(dset_id);
+    CHECK(error, FAIL, "H5Dclose");
+    error=H5Fclose(file_id);
+    CHECK(error, FAIL, "H5Fclose");
+}
+
+/****************************************************************
+**
+**  test_select_hyper_union_3d(): Test basic H5S (dataspace) selection code.
+**      Tests unions of hyperslabs in 3-D (Uses H5Scombine_hyperslab
+**      and H5Scombine_select instead of H5Sselect_hyperslab)
+**
+****************************************************************/
+static void
+test_select_hyper_union_3d(void)
+{
+    hid_t		fid1;		/* HDF5 File IDs		*/
+    hid_t		dataset;	/* Dataset ID			*/
+    hid_t		sid1,sid2;	/* Dataspace ID			*/
+    hid_t		tmp_space;	/* Temporary Dataspace ID	*/
+    hid_t		tmp2_space;	/* Another temporary Dataspace ID	*/
+    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
+    hsize_t		dims2[] = {SPACE4_DIM1, SPACE4_DIM2, SPACE4_DIM3};
+    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
+    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
+    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
+    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
+    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
+    struct row_list {
+        size_t z;
+        size_t y;
+        size_t x;
+        size_t l;
+    } rows[]= {             /* Array of x,y,z coordinates & length for each row written from memory */
+        {0,0,0,6},          /* 1st face of 3-D object */
+        {0,1,0,6},
+        {0,2,0,6},
+        {0,3,0,6},
+        {0,4,0,6},
+        {1,0,0,6},          /* 2nd face of 3-D object */
+        {1,1,0,6},
+        {1,2,0,6},
+        {1,3,0,6},
+        {1,4,0,6},
+        {2,0,0,6},          /* 3rd face of 3-D object */
+        {2,1,0,10},
+        {2,2,0,10},
+        {2,3,0,10},
+        {2,4,0,10},
+        {2,5,2,8},
+        {2,6,2,8},
+        {3,0,0,6},          /* 4th face of 3-D object */
+        {3,1,0,10},
+        {3,2,0,10},
+        {3,3,0,10},
+        {3,4,0,10},
+        {3,5,2,8},
+        {3,6,2,8},
+        {4,0,0,6},          /* 5th face of 3-D object */
+        {4,1,0,10},
+        {4,2,0,10},
+        {4,3,0,10},
+        {4,4,0,10},
+        {4,5,2,8},
+        {4,6,2,8},
+        {5,1,2,8},          /* 6th face of 3-D object */
+        {5,2,2,8},
+        {5,3,2,8},
+        {5,4,2,8},
+        {5,5,2,8},
+        {5,6,2,8},
+        {6,1,2,8},          /* 7th face of 3-D object */
+        {6,2,2,8},
+        {6,3,2,8},
+        {6,4,2,8},
+        {6,5,2,8},
+        {6,6,2,8},
+        {7,1,2,8},          /* 8th face of 3-D object */
+        {7,2,2,8},
+        {7,3,2,8},
+        {7,4,2,8},
+        {7,5,2,8},
+        {7,6,2,8}};
+    uint8_t    *wbuf,       /* buffer to write to disk */
+               *rbuf,       /* buffer read from disk */
+               *tbuf,       /* temporary buffer pointer */
+               *tbuf2;      /* temporary buffer pointer */
+    int        i,j,k;      /* Counters */
+    herr_t		ret;		/* Generic return value		*/
+    hsize_t	    npoints;	/* Number of elements in selection */
+
+    /* Output message about test being performed */
+    MESSAGE(5, ("Testing Hyperslab Selection Functions with unions of 3-D hyperslabs\n"));
+
+    /* Allocate write & read buffers */
+    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE4_DIM1 * SPACE4_DIM2 * SPACE4_DIM3);
+    CHECK(wbuf, NULL, "HDmalloc");
+    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), SPACE3_DIM1 * SPACE3_DIM2);
+    CHECK(rbuf, NULL, "HDcalloc");
+
+    /* Initialize write buffer */
+    for(i=0, tbuf=wbuf; i<SPACE4_DIM1; i++)
+        for(j=0; j<SPACE4_DIM2; j++)
+            for(k=0; k<SPACE4_DIM3; k++)
+                *tbuf++=(uint8_t)((((i*SPACE4_DIM2)+j)*SPACE4_DIM3)+k);
+
+    /* Create file */
+    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(fid1, FAIL, "H5Fcreate");
+
+/* Test case of two blocks which overlap corners and must be split */
+    /* Create dataspace for dataset on disk */
+    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+    CHECK(sid1, FAIL, "H5Screate_simple");
+
+    /* Create dataspace for writing buffer */
+    sid2 = H5Screate_simple(SPACE4_RANK, dims2, NULL);
+    CHECK(sid2, FAIL, "H5Screate_simple");
+
+    /* Select 2x15x13 hyperslab for disk dataset */
+    start[0]=1; start[1]=0; start[2]=0;
+    stride[0]=1; stride[1]=1; stride[2]=1;
+    count[0]=2; count[1]=15; count[2]=13;
+    block[0]=1; block[1]=1; block[2]=1;
+    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+    /* Select 5x5x6 hyperslab for memory dataset */
+    start[0]=0; start[1]=0; start[2]=0;
+    stride[0]=1; stride[1]=1; stride[2]=1;
+    count[0]=5; count[1]=5; count[2]=6;
+    block[0]=1; block[1]=1; block[2]=1;
+    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+    /* Union overlapping 15x20 hyperslab for memory dataset (forming a irregularly shaped region) */
+    start[0]=2; start[1]=1; start[2]=2;
+    stride[0]=1; stride[1]=1; stride[2]=1;
+    count[0]=6; count[1]=6; count[2]=8;
+    block[0]=1; block[1]=1; block[2]=1;
+    tmp_space = H5Scombine_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(tmp_space, FAIL, "H5Sselect_hyperslab");
+
+    /* Combine dataspaces and create new dataspace */
+    tmp2_space = H5Scombine_select(sid2,H5S_SELECT_OR,tmp_space);
+    CHECK(tmp2_space, FAIL, "H5Scombin_select");
+
+    npoints = (hsize_t)H5Sget_select_npoints(tmp2_space);
+    VERIFY(npoints, 15*26, "H5Sget_select_npoints");
+
+    /* Create a dataset */
+    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(dataset, FAIL, "H5Dcreate2");
+
+    /* Write selection to disk */
+    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,tmp2_space,sid1,H5P_DEFAULT,wbuf);
+    CHECK(ret, FAIL, "H5Dwrite");
+
+    /* Close temporary dataspaces */
+    ret = H5Sclose(tmp_space);
+    CHECK(ret, FAIL, "H5Sclose");
+    ret = H5Sclose(tmp2_space);
+    CHECK(ret, FAIL, "H5Sclose");
+
+    /* Close memory dataspace */
+    ret = H5Sclose(sid2);
+    CHECK(ret, FAIL, "H5Sclose");
+
+    /* Create dataspace for reading buffer */
+    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
+    CHECK(sid2, FAIL, "H5Screate_simple");
+
+    /* Select 15x26 hyperslab for reading memory dataset */
+    start[0]=0; start[1]=0;
+    stride[0]=1; stride[1]=1;
+    count[0]=15; count[1]=26;
+    block[0]=1; block[1]=1;
+    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+    /* Read selection from disk */
+    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
+    CHECK(ret, FAIL, "H5Dread");
+
+    /* Compare data read with data written out */
+    for(i=0,tbuf2=rbuf; i<(int)(sizeof(rows)/sizeof(struct row_list)); i++) {
+        tbuf=wbuf+(rows[i].z*SPACE4_DIM3*SPACE4_DIM2)+(rows[i].y*SPACE4_DIM3)+rows[i].x;
+        for(j=0; j<(int)rows[i].l; j++, tbuf++, tbuf2++) {
+            if(*tbuf!=*tbuf2)
+                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
+        } /* end for */
+    } /* end for */
+
+    /* Close memory dataspace */
+    ret = H5Sclose(sid2);
+    CHECK(ret, FAIL, "H5Sclose");
+
+    /* Close disk dataspace */
+    ret = H5Sclose(sid1);
+    CHECK(ret, FAIL, "H5Sclose");
+
+    /* Close Dataset */
+    ret = H5Dclose(dataset);
+    CHECK(ret, FAIL, "H5Dclose");
+
+    /* Close file */
+    ret = H5Fclose(fid1);
+    CHECK(ret, FAIL, "H5Fclose");
+
+    /* Free memory buffers */
+    HDfree(wbuf);
+    HDfree(rbuf);
+}   /* test_select_hyper_union_3d() */
+
+/****************************************************************
+**
+**  test_select_hyper_valid_combination(): Tests invalid and valid
+**  combinations of selections on dataspace for H5Scombine_select
+**  and H5Smodify_select.
+**
+****************************************************************/
+static void
+test_select_hyper_valid_combination(void)
+{
+    hid_t	single_pt_sid;	/* Dataspace ID	with single point selection */
+    hid_t	single_hyper_sid;	/* Dataspace ID	with single block hyperslab selection */
+    hid_t	regular_hyper_sid;	/* Dataspace ID	with regular hyperslab selection */
+	hid_t   non_existent_sid = -1; /* A non-existent space id */
+    hid_t	tmp_sid;	/* Temporary dataspace ID */
+    hsize_t	dims2D[] = {SPACE9_DIM1, SPACE9_DIM2};
+	hsize_t	dims3D[] = {SPACE4_DIM1, SPACE4_DIM2, SPACE4_DIM3};
+
+    hsize_t	coord1[1][SPACE2_RANK]; /* Coordinates for single point selection */
+    hsize_t     start[SPACE4_RANK]; /* Hyperslab start */
+    hsize_t     stride[SPACE4_RANK]; /* Hyperslab stride */
+    hsize_t     count[SPACE4_RANK]; /* Hyperslab block count */
+    hsize_t     block[SPACE4_RANK]; /* Hyperslab block size */
+    herr_t	ret;		/* Generic return value	*/
+
+    /* Output message about test being performed */
+    MESSAGE(6, ("Testing Selection Combination Validity\n"));
+    assert(SPACE9_DIM2>=POINT1_NPOINTS);
+
+    /* Create dataspace for single point selection */
+    single_pt_sid = H5Screate_simple(SPACE9_RANK, dims2D, NULL);
+    CHECK(single_pt_sid, FAIL, "H5Screate_simple");
+
+    /* Select sequence of ten points for multiple point selection */
+    coord1[0][0] = 2; coord1[0][1] = 2;
+    ret = H5Sselect_elements(single_pt_sid, H5S_SELECT_SET, (size_t)1, (const hsize_t *)coord1);
+    CHECK(ret, FAIL, "H5Sselect_elements");
+
+    /* Create dataspace for single hyperslab selection */
+    single_hyper_sid = H5Screate_simple(SPACE9_RANK, dims2D, NULL);
+    CHECK(single_hyper_sid, FAIL, "H5Screate_simple");
+
+    /* Select 10x10 hyperslab for single hyperslab selection  */
+    start[0]=1; start[1]=1;
+    stride[0]=1; stride[1]=1;
+    count[0]=1; count[1]=1;
+    block[0]=(SPACE9_DIM1-2); block[1]=(SPACE9_DIM2-2);
+    ret = H5Sselect_hyperslab(single_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+    /* Create dataspace for regular hyperslab selection */
+    regular_hyper_sid = H5Screate_simple(SPACE4_RANK, dims3D, NULL);
+    CHECK(regular_hyper_sid, FAIL, "H5Screate_simple");
+
+    /* Select regular, strided hyperslab selection */
+    start[0]=2; start[1]=2; start[2]=2;
+    stride[0]=2; stride[1]=2; stride[2]=2;
+    count[0]=5; count[1]=2; count[2]=5;
+    block[0]=1; block[1]=1; block[2]=1;
+    ret = H5Sselect_hyperslab(regular_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+
+    /* Test all the selections created */
+
+	/* Test the invalid combinations between point and hyperslab */
+	tmp_sid = H5Scombine_select(single_pt_sid, H5S_SELECT_AND, single_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Scombine_select");
+
+	tmp_sid = H5Smodify_select(single_pt_sid, H5S_SELECT_AND, single_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Smodify_select");
+
+	/* Test the invalid combination between two hyperslab but of different dimension size */
+	tmp_sid = H5Scombine_select(single_hyper_sid, H5S_SELECT_AND, regular_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Scombine_select");
+
+	tmp_sid = H5Smodify_select(single_hyper_sid, H5S_SELECT_AND, regular_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Smodify_select");
+
+	/* Test invalid operation inputs to the two functions */
+	tmp_sid = H5Scombine_select(single_hyper_sid, H5S_SELECT_SET, single_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Scombine_select");
+
+	tmp_sid = H5Smodify_select(single_hyper_sid, H5S_SELECT_SET, single_hyper_sid);
+	VERIFY(tmp_sid, FAIL, "H5Smodify_select");
+
+	/* Test inputs in case of non-existent space ids */
+	tmp_sid = H5Scombine_select(single_hyper_sid, H5S_SELECT_AND, non_existent_sid);
+	VERIFY(tmp_sid, FAIL, "H5Scombine_select");
+
+	tmp_sid = H5Smodify_select(single_hyper_sid, H5S_SELECT_AND, non_existent_sid);
+	VERIFY(tmp_sid, FAIL, "H5Smodify_select");
+
+	/* Close dataspaces */
+    ret = H5Sclose(single_pt_sid);
+    CHECK(ret, FAIL, "H5Sclose");
+    ret = H5Sclose(single_hyper_sid);
+    CHECK(ret, FAIL, "H5Sclose");
+    ret = H5Sclose(regular_hyper_sid);
+    CHECK(ret, FAIL, "H5Sclose");
+}   /* test_select_hyper_valid_combination() */
+
+
+/****************************************************************
+**
 **  test_select_hyper_and_2d(): Test basic H5S (dataspace) selection code.
 **      Tests 'and' of hyperslabs in 2-D
 **
@@ -14453,6 +14916,283 @@ test_irreg_io(void)
 
 /****************************************************************
 **
+**  test_sel_iter(): Test selection iterator API routines.
+**
+****************************************************************/
+static void
+test_sel_iter(void)
+{
+    hid_t       sid;            /* Dataspace ID */
+    hid_t       iter_id;        /* Dataspace selection iterator ID */
+    hsize_t	dims1[] = {6, 12};  /* 2-D Dataspace dimensions */
+    hsize_t	dims2[] = {32}; /* 1-D dataspace dimensions */
+    hsize_t	coord1[POINT1_NPOINTS][2]; /* Coordinates for point selection */
+    hsize_t     start[2];       /* Hyperslab start */
+    hsize_t     stride[2];      /* Hyperslab stride */
+    hsize_t     count[2];       /* Hyperslab block count */
+    hsize_t     block[2];       /* Hyperslab block size */
+    size_t      nseq;           /* # of sequences retrieved */
+    size_t      nbytes;         /* # of bytes retrieved */
+    hsize_t     off[SEL_ITER_MAX_SEQ];  /* Offsets for retrieved sequences */
+    size_t      len[SEL_ITER_MAX_SEQ];  /* Lengths for retrieved sequences */
+    H5S_sel_type sel_type;      /* Selection type */
+    unsigned    sel_share;      /* Whether to share selection with dataspace */
+    unsigned    sel_iter_flags; /* Flags for selection iterator creation */
+    herr_t	ret;		/* Generic return value	*/
+
+    /* Output message about test being performed */
+    MESSAGE(6, ("Testing Dataspace Selection Iterators\n"));
+
+    /* Create dataspace */
+    sid = H5Screate_simple(2, dims1, NULL);
+    CHECK(sid, FAIL, "H5Screate_simple");
+
+
+    /* Try creating selection iterator object with bad parameters */
+    H5E_BEGIN_TRY {     /* Bad dataspace ID */
+        iter_id = H5Ssel_iter_create(H5I_INVALID_HID, (size_t)1, (unsigned)0);
+    } H5E_END_TRY;
+    VERIFY(iter_id, FAIL, "H5Ssel_iter_create");
+    H5E_BEGIN_TRY {     /* Bad element size */
+        iter_id = H5Ssel_iter_create(sid, (size_t)0, (unsigned)0);
+    } H5E_END_TRY;
+    VERIFY(iter_id, FAIL, "H5Ssel_iter_create");
+    H5E_BEGIN_TRY {     /* Bad flag(s) */
+        iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)0xffff);
+    } H5E_END_TRY;
+    VERIFY(iter_id, FAIL, "H5Ssel_iter_create");
+
+    /* Try closing selection iterator, with bad parameters */
+    H5E_BEGIN_TRY {     /* Invalid ID */
+        ret = H5Ssel_iter_close(H5I_INVALID_HID);
+    } H5E_END_TRY;
+    VERIFY(ret, FAIL, "H5Ssel_iter_close");
+    H5E_BEGIN_TRY {     /* Not a selection iterator ID */
+        ret = H5Ssel_iter_close(sid);
+    } H5E_END_TRY;
+    VERIFY(ret, FAIL, "H5Ssel_iter_close");
+
+
+    /* Try with no selection sharing, and with sharing */
+    for(sel_share = 0; sel_share < 2; sel_share++) {
+        /* Set selection iterator sharing flags */
+        if(sel_share)
+            sel_iter_flags = H5S_SEL_ITER_SHARE_WITH_DATASPACE;
+        else
+            sel_iter_flags = 0;
+
+        /* Create selection iterator object */
+        iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)sel_iter_flags);
+        CHECK(iter_id, FAIL, "H5Ssel_iter_create");
+
+        /* Close selection iterator */
+        ret = H5Ssel_iter_close(iter_id);
+        CHECK(ret, FAIL, "H5Ssel_iter_close");
+
+        /* Try closing selection iterator twice */
+        H5E_BEGIN_TRY {     /* Invalid ID */
+            ret = H5Ssel_iter_close(iter_id);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_close");
+
+
+        /* Create selection iterator object */
+        iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)sel_iter_flags);
+        CHECK(iter_id, FAIL, "H5Ssel_iter_create");
+
+        /* Try retrieving sequences, with bad parameters */
+        H5E_BEGIN_TRY {     /* Invalid ID */
+            ret = H5Ssel_iter_get_seq_list(H5I_INVALID_HID, (size_t)1, (size_t)1, &nseq, &nbytes, off, len);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        H5E_BEGIN_TRY {     /* Invalid nseq pointer */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)1, (size_t)1, NULL, &nbytes, off, len);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        H5E_BEGIN_TRY {     /* Invalid nbytes pointer */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)1, (size_t)1, &nseq, NULL, off, len);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        H5E_BEGIN_TRY {     /* Invalid offset array */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)1, (size_t)1, &nseq, &nbytes, NULL, len);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        H5E_BEGIN_TRY {     /* Invalid length array */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)1, (size_t)1, &nseq, &nbytes, off, NULL);
+        } H5E_END_TRY;
+        VERIFY(ret, FAIL, "H5Ssel_iter_get_seq_list");
+
+        /* Close selection iterator */
+        ret = H5Ssel_iter_close(iter_id);
+        CHECK(ret, FAIL, "H5Ssel_iter_close");
+
+
+        /* Test iterators on various basic selection types */
+        for(sel_type = H5S_SEL_NONE; sel_type <= H5S_SEL_ALL; sel_type = (H5S_sel_type)(sel_type + 1)) {
+            switch(sel_type) {
+                case H5S_SEL_NONE:          /* "None" selection */
+                    ret = H5Sselect_none(sid);
+                    CHECK(ret, FAIL, "H5Sselect_none");
+                    break;
+
+                case H5S_SEL_POINTS:        /* Point selection */
+                    /* Select sequence of ten points */
+                    coord1[0][0] = 0;       coord1[0][1] = 9;
+                    coord1[1][0] = 1;       coord1[1][1] = 2;
+                    coord1[2][0] = 2;       coord1[2][1] = 4;
+                    coord1[3][0] = 0;       coord1[3][1] = 6;
+                    coord1[4][0] = 1;       coord1[4][1] = 8;
+                    coord1[5][0] = 2;       coord1[5][1] = 10;
+                    coord1[6][0] = 0;       coord1[6][1] = 11;
+                    coord1[7][0] = 1;       coord1[7][1] = 4;
+                    coord1[8][0] = 2;       coord1[8][1] = 1;
+                    coord1[9][0] = 0;       coord1[9][1] = 3;
+                    ret = H5Sselect_elements(sid, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
+                    CHECK(ret, FAIL, "H5Sselect_elements");
+                    break;
+
+                case H5S_SEL_HYPERSLABS:    /* Hyperslab selection */
+                    /* Select regular hyperslab */
+                    start[0] = 3;   start[1] = 0;
+                    stride[0] = 2;  stride[1] = 2;
+                    count[0] = 2;   count[1] = 5;
+                    block[0] = 1;   block[1] = 1;
+                    ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, start, stride, count, block);
+                    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+                    break;
+
+                case H5S_SEL_ALL:           /* "All" selection */
+                    ret = H5Sselect_all(sid);
+                    CHECK(ret, FAIL, "H5Sselect_all");
+                    break;
+
+                case H5S_SEL_ERROR:
+                case H5S_SEL_N:
+                default:
+                    HDassert(0 && "Can't occur");
+                    break;
+            } /* end switch */
+
+            /* Create selection iterator object */
+            iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)sel_iter_flags);
+            CHECK(iter_id, FAIL, "H5Ssel_iter_create");
+
+            /* Try retrieving no sequences, with 0 for maxseq & maxbytes */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)0, (size_t)1, &nseq, &nbytes, off, len);
+            CHECK(ret, FAIL, "H5Ssel_iter_get_seq_list");
+            VERIFY(nseq, 0, "H5Ssel_iter_get_seq_list");
+            VERIFY(nbytes, 0, "H5Ssel_iter_get_seq_list");
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)1, (size_t)0, &nseq, &nbytes, off, len);
+            CHECK(ret, FAIL, "H5Ssel_iter_get_seq_list");
+            VERIFY(nseq, 0, "H5Ssel_iter_get_seq_list");
+            VERIFY(nbytes, 0, "H5Ssel_iter_get_seq_list");
+
+            /* Try retrieving all sequences */
+            ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)SEL_ITER_MAX_SEQ, (size_t)(1024 * 1024), &nseq, &nbytes, off, len);
+            CHECK(ret, FAIL, "H5Ssel_iter_get_seq_list");
+
+            /* Check results from retrieving sequence list */
+            switch(sel_type) {
+                case H5S_SEL_NONE:          /* "None" selection */
+                    VERIFY(nseq, 0, "H5Ssel_iter_get_seq_list");
+                    VERIFY(nbytes, 0, "H5Ssel_iter_get_seq_list");
+                    break;
+
+                case H5S_SEL_POINTS:        /* Point selection */
+                    VERIFY(nseq, 10, "H5Ssel_iter_get_seq_list");
+                    VERIFY(nbytes, 10, "H5Ssel_iter_get_seq_list");
+                    break;
+
+                case H5S_SEL_HYPERSLABS:    /* Hyperslab selection */
+                    VERIFY(nseq, 10, "H5Ssel_iter_get_seq_list");
+                    VERIFY(nbytes, 10, "H5Ssel_iter_get_seq_list");
+                    break;
+
+                case H5S_SEL_ALL:           /* "All" selection */
+                    VERIFY(nseq, 1, "H5Ssel_iter_get_seq_list");
+                    VERIFY(nbytes, 72, "H5Ssel_iter_get_seq_list");
+                    break;
+
+                case H5S_SEL_ERROR:
+                case H5S_SEL_N:
+                default:
+                    HDassert(0 && "Can't occur");
+                    break;
+            } /* end switch */
+
+            /* Close selection iterator */
+            ret = H5Ssel_iter_close(iter_id);
+            CHECK(ret, FAIL, "H5Ssel_iter_close");
+        } /* end for */
+
+        /* Point selection which will merge into smaller # of sequences */
+        coord1[0][0] = 0;       coord1[0][1] = 9;
+        coord1[1][0] = 0;       coord1[1][1] = 10;
+        coord1[2][0] = 0;       coord1[2][1] = 11;
+        coord1[3][0] = 0;       coord1[3][1] = 6;
+        coord1[4][0] = 1;       coord1[4][1] = 8;
+        coord1[5][0] = 2;       coord1[5][1] = 10;
+        coord1[6][0] = 0;       coord1[6][1] = 11;
+        coord1[7][0] = 1;       coord1[7][1] = 4;
+        coord1[8][0] = 1;       coord1[8][1] = 5;
+        coord1[9][0] = 1;       coord1[9][1] = 6;
+        ret = H5Sselect_elements(sid, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
+        CHECK(ret, FAIL, "H5Sselect_elements");
+
+        /* Create selection iterator object */
+        iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)sel_iter_flags);
+        CHECK(iter_id, FAIL, "H5Ssel_iter_create");
+
+        /* Try retrieving all sequences */
+        ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)SEL_ITER_MAX_SEQ, (size_t)(1024 * 1024), &nseq, &nbytes, off, len);
+        CHECK(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        VERIFY(nseq, 6, "H5Ssel_iter_get_seq_list");
+        VERIFY(nbytes, 10, "H5Ssel_iter_get_seq_list");
+
+        /* Close selection iterator */
+        ret = H5Ssel_iter_close(iter_id);
+        CHECK(ret, FAIL, "H5Ssel_iter_close");
+
+
+        /* Select irregular hyperslab, which will merge into smaller # of sequences  */
+        start[0] = 3;   start[1] = 0;
+        stride[0] = 2;  stride[1] = 2;
+        count[0] = 2;   count[1] = 5;
+        block[0] = 1;   block[1] = 1;
+        ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, start, stride, count, block);
+        CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+        start[0] = 3;   start[1] = 3;
+        stride[0] = 2;  stride[1] = 2;
+        count[0] = 2;   count[1] = 5;
+        block[0] = 1;   block[1] = 1;
+        ret = H5Sselect_hyperslab(sid, H5S_SELECT_OR, start, stride, count, block);
+        CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
+        /* Create selection iterator object */
+        iter_id = H5Ssel_iter_create(sid, (size_t)1, (unsigned)sel_iter_flags);
+        CHECK(iter_id, FAIL, "H5Ssel_iter_create");
+
+        /* Try retrieving all sequences */
+        ret = H5Ssel_iter_get_seq_list(iter_id, (size_t)SEL_ITER_MAX_SEQ, (size_t)(1024 * 1024), &nseq, &nbytes, off, len);
+        CHECK(ret, FAIL, "H5Ssel_iter_get_seq_list");
+        VERIFY(nseq, 6, "H5Ssel_iter_get_seq_list");
+        VERIFY(nbytes, 20, "H5Ssel_iter_get_seq_list");
+
+        /* Close selection iterator */
+        ret = H5Ssel_iter_close(iter_id);
+        CHECK(ret, FAIL, "H5Ssel_iter_close");
+
+    } /* end for */
+
+    /* Close dataspace */
+    ret = H5Sclose(sid);
+    CHECK(ret, FAIL, "H5Sclose");
+}   /* test_sel_iter() */
+
+
+/****************************************************************
+**
 **  test_select(): Main H5S selection testing routine.
 **
 ****************************************************************/
@@ -14519,6 +15259,12 @@ test_select(void)
     test_select_hyper_offset2();/* Test more selection offset code with hyperslabs */
     test_select_point_offset(); /* Test selection offset code with elements */
     test_select_hyper_union();  /* Test hyperslab union code */
+
+    /* Fancy hyperslab API tests */
+    test_select_hyper_union_stagger();  /* Test hyperslab union code for staggered slabs */
+    test_select_hyper_union_3d();  /* Test hyperslab union code for 3-D dataset */
+    test_select_hyper_valid_combination(); /* Test different input combinations */
+
     test_select_hyper_and_2d(); /* Test hyperslab intersection (AND) code for 2-D dataset */
     test_select_hyper_xor_2d(); /* Test hyperslab XOR code for 2-D dataset */
     test_select_hyper_notb_2d(); /* Test hyperslab NOTB code for 2-D dataset */
@@ -14622,6 +15368,8 @@ test_select(void)
     /* Test irregular selection I/O */
     test_irreg_io();
 
+    /* Test selection iterators */
+    test_sel_iter();
 }   /* test_select() */
 
 
diff --git a/test/vds.c b/test/vds.c
index c3b6181..af052a8 100644
--- a/test/vds.c
+++ b/test/vds.c
@@ -1409,7 +1409,7 @@ test_basic_io(unsigned config, hid_t fapl)
     int         erbuf[10][26];  /* Expected read buffer */
     int         fill = -1;      /* Fill value */
     herr_t      ret;            /* Generic return value */
-    int         i, j;
+    int         i, j, u, v;
 
     TESTING("basic virtual dataset I/O")
 
@@ -3498,6 +3498,724 @@ test_basic_io(unsigned config, hid_t fapl)
     memspace = -1;
 
 
+    /*
+     * Test 8: For code coverage: Horizontal block virtual mappings, and file
+     * selection, grid memory selection
+     */
+    /* Clear virtual layout in DCPL */
+    if(H5Pset_layout(dcpl, H5D_VIRTUAL) < 0)
+        TEST_ERROR
+
+    /* Create memory dataspace */
+    if((memspace = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataspaces */
+    dims[0] = 8;
+    dims[1] = 15;
+    if((vspace[0] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+    if((vspace[1] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create source dataspace */
+    dims[0] = 4;
+    if((srcspace[0] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Select all in source space (should not be necessary, but just to be sure)
+     */
+    if(H5Sselect_all(srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Select hyperslabs in virtual spaces */
+    start[0] = 0;
+    start[1] = 0;
+    if(H5Sselect_hyperslab(vspace[0], H5S_SELECT_SET, start, NULL, dims, NULL) < 0)
+        TEST_ERROR
+    start[0] = 4;
+    if(H5Sselect_hyperslab(vspace[1], H5S_SELECT_SET, start, NULL, dims, NULL) < 0)
+        TEST_ERROR
+
+    /* Add virtual layout mappings */
+    if(H5Pset_virtual(dcpl, vspace[0], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset1", srcspace[0]) < 0)
+        TEST_ERROR
+    if(H5Pset_virtual(dcpl, vspace[1], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset2", srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Reset dims */
+    dims[0] = 10;
+    dims[1] = 26;
+
+    /* Create virtual file */
+    if((vfile = H5Fcreate(vfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+        TEST_ERROR
+
+    /* Create source file if requested */
+    if(config & TEST_IO_DIFFERENT_FILE) {
+        if((srcfile[0] = H5Fcreate(srcfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+            TEST_ERROR
+    }
+    else {
+        srcfile[0] = vfile;
+        if(H5Iinc_ref(srcfile[0]) < 0)
+            TEST_ERROR
+    }
+
+    /* Create source datasets */
+    if((srcdset[0] = H5Dcreate2(srcfile[0], "src_dset1", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+    if((srcdset[1] = H5Dcreate2(srcfile[0], "src_dset2", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataset */
+    if((vdset = H5Dcreate2(vfile, "v_dset", H5T_NATIVE_INT, vspace[0], H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Reset erbuf */
+    HDmemset(erbuf[0], 0, sizeof(rbuf));
+
+    /* Populate write buffer */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            buf[i][j] = (i * (int)(sizeof(buf[0]) / sizeof(buf[0][0]))) + j;
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    count[0] = 4;
+    count[1] = 15;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to first source dataset */
+    if(H5Dwrite(srcdset[0], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    u = 0;
+    v = 0;
+    for(i = 2; i < 4; i++)
+        for(j = 0; j < 15; j++) {
+            erbuf[u][v] = buf[i][j];
+            v += 2;
+            if(v >= 24) {
+                u += 2;
+                v = 0;
+            }
+        }
+
+    /* Select hyperslab in memory */
+    start[0] = 4;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to second source dataset */
+    if(H5Dwrite(srcdset[1], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    for(i = 4; i < 6; i++)
+        for(j = 0; j < 15; j++) {
+            erbuf[u][v] = buf[i][j];
+            v += 2;
+            if(v >= 24) {
+                u += 2;
+                v = 0;
+            }
+        }
+
+    /* Close srcdsets and srcfile if config option specified */
+    if(config & TEST_IO_CLOSE_SRC) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+
+    /* Reopen virtual dataset and file if config option specified */
+    if(config & TEST_IO_REOPEN_VIRT) {
+        if(H5Dclose(vdset) < 0)
+            TEST_ERROR
+        vdset = -1;
+        if(H5Fclose(vfile) < 0)
+            TEST_ERROR
+        vfile = -1;
+        if((vfile = H5Fopen(vfilename, H5F_ACC_RDWR, fapl)) < 0)
+            TEST_ERROR
+        if((vdset = H5Dopen2(vfile, "v_dset", H5P_DEFAULT)) < 0)
+            TEST_ERROR
+    }
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    stride[0] = 2;
+    stride[1] = 2;
+    count[0] = 5;
+    count[1] = 12;
+    block[0] = 1;
+    block[1] = 1;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, stride, count, block) < 0)
+        TEST_ERROR
+
+    /* Select hyperslab in file */
+    start[0] = 2;
+    start[1] = 0;
+    count[0] = 4;
+    count[1] = 15;
+    if(H5Sselect_hyperslab(vspace[0], H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Read data through virtual dataset */
+    HDmemset(rbuf[0], 0, sizeof(rbuf));
+    if(H5Dread(vdset, H5T_NATIVE_INT, memspace, vspace[0], H5P_DEFAULT, rbuf[0]) < 0)
+        TEST_ERROR
+
+    /* Verify read data */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            if(rbuf[i][j] != erbuf[i][j])
+                TEST_ERROR
+
+    /* Close */
+    if(!(config & TEST_IO_CLOSE_SRC)) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+    if(H5Dclose(vdset) < 0)
+        TEST_ERROR
+    vdset = -1;
+    if(H5Fclose(vfile) < 0)
+        TEST_ERROR
+    vfile = -1;
+    if(H5Sclose(srcspace[0]) < 0)
+        TEST_ERROR
+    srcspace[0] = -1;
+    if(H5Sclose(vspace[0]) < 0)
+        TEST_ERROR
+    vspace[0] = -1;
+    if(H5Sclose(vspace[1]) < 0)
+        TEST_ERROR
+    vspace[1] = -1;
+    if(H5Sclose(memspace) < 0)
+        TEST_ERROR
+    memspace = -1;
+
+
+    /*
+     * Test 9: For code coverage: Horizontal block virtual mappings, and file
+     * selection, grid memory selection, 3 mappings, 3D memory space
+     */
+    /* Clear virtual layout in DCPL */
+    if(H5Pset_layout(dcpl, H5D_VIRTUAL) < 0)
+        TEST_ERROR
+
+    /* Create memory dataspace */
+    dims[1] = 13;
+    dims[2] = 2;
+    if((memspace = H5Screate_simple(3, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataspaces */
+    dims[0] = 6;
+    dims[1] = 10;
+    if((vspace[0] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+    if((vspace[1] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+    if((vspace[2] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create source dataspace */
+    dims[0] = 2;
+    if((srcspace[0] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Select all in source space (should not be necessary, but just to be sure)
+     */
+    if(H5Sselect_all(srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Select hyperslabs in virtual spaces */
+    start[0] = 0;
+    start[1] = 0;
+    if(H5Sselect_hyperslab(vspace[0], H5S_SELECT_SET, start, NULL, dims, NULL) < 0)
+        TEST_ERROR
+    start[0] = 2;
+    if(H5Sselect_hyperslab(vspace[1], H5S_SELECT_SET, start, NULL, dims, NULL) < 0)
+        TEST_ERROR
+    start[0] = 4;
+    if(H5Sselect_hyperslab(vspace[2], H5S_SELECT_SET, start, NULL, dims, NULL) < 0)
+        TEST_ERROR
+
+    /* Add virtual layout mappings */
+    if(H5Pset_virtual(dcpl, vspace[0], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset1", srcspace[0]) < 0)
+        TEST_ERROR
+    if(H5Pset_virtual(dcpl, vspace[1], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset2", srcspace[0]) < 0)
+        TEST_ERROR
+    if(H5Pset_virtual(dcpl, vspace[2], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset3", srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Reset dims */
+    dims[0] = 10;
+    dims[1] = 26;
+
+    /* Create virtual file */
+    if((vfile = H5Fcreate(vfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+        TEST_ERROR
+
+    /* Create source file if requested */
+    if(config & TEST_IO_DIFFERENT_FILE) {
+        if((srcfile[0] = H5Fcreate(srcfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+            TEST_ERROR
+    }
+    else {
+        srcfile[0] = vfile;
+        if(H5Iinc_ref(srcfile[0]) < 0)
+            TEST_ERROR
+    }
+
+    /* Create source datasets */
+    if((srcdset[0] = H5Dcreate2(srcfile[0], "src_dset1", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+    if((srcdset[1] = H5Dcreate2(srcfile[0], "src_dset2", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+    if((srcdset[2] = H5Dcreate2(srcfile[0], "src_dset3", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataset */
+    if((vdset = H5Dcreate2(vfile, "v_dset", H5T_NATIVE_INT, vspace[0], H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Reset erbuf */
+    HDmemset(erbuf[0], 0, sizeof(rbuf));
+
+    /* Populate write buffer */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            buf[i][j] = (i * (int)(sizeof(buf[0]) / sizeof(buf[0][0]))) + j;
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    start[2] = 0;
+    count[0] = 2;
+    count[1] = 5;
+    count[2] = 2;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to first source dataset */
+    if(H5Dwrite(srcdset[0], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    u = 0;
+    v = 0;
+    for(i = 0; i < 2; i++)
+        for(j = 0; j < 10; j++) {
+            erbuf[u][v] = buf[i][j];
+            if(++v == 6)
+                v += 2;
+            else if(v == 14) {
+                u += 2;
+                v = 0;
+            }
+        }
+
+    /* Select hyperslab in memory */
+    start[0] = 2;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to second source dataset */
+    if(H5Dwrite(srcdset[1], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    for(i = 2; i < 4; i++)
+        for(j = 0; j < 10; j++) {
+            erbuf[u][v] = buf[i][j];
+            if(++v == 6)
+                v += 2;
+            else if(v == 14) {
+                u += 2;
+                v = 0;
+            }
+        }
+
+    /* Select hyperslab in memory */
+    start[0] = 4;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to third source dataset */
+    if(H5Dwrite(srcdset[2], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    for(i = 4; i < 6; i++)
+        for(j = 0; j < 10; j++) {
+            erbuf[u][v] = buf[i][j];
+            if(++v == 6)
+                v += 2;
+            else if(v == 14) {
+                u += 2;
+                v = 0;
+            }
+        }
+
+    /* Close srcdsets and srcfile if config option specified */
+    if(config & TEST_IO_CLOSE_SRC) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Dclose(srcdset[2]) < 0)
+            TEST_ERROR
+        srcdset[2] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+
+    /* Reopen virtual dataset and file if config option specified */
+    if(config & TEST_IO_REOPEN_VIRT) {
+        if(H5Dclose(vdset) < 0)
+            TEST_ERROR
+        vdset = -1;
+        if(H5Fclose(vfile) < 0)
+            TEST_ERROR
+        vfile = -1;
+        if((vfile = H5Fopen(vfilename, H5F_ACC_RDWR, fapl)) < 0)
+            TEST_ERROR
+        if((vdset = H5Dopen2(vfile, "v_dset", H5P_DEFAULT)) < 0)
+            TEST_ERROR
+    }
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    start[2] = 0;
+    stride[0] = 2;
+    stride[1] = 4;
+    stride[2] = 1;
+    count[0] = 5;
+    count[1] = 2;
+    count[2] = 1;
+    block[0] = 1;
+    block[1] = 3;
+    block[2] = 2;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, stride, count, block) < 0)
+        TEST_ERROR
+
+    /* Read data through virtual dataset */
+    HDmemset(rbuf[0], 0, sizeof(rbuf));
+    if(H5Dread(vdset, H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, rbuf[0]) < 0)
+        TEST_ERROR
+
+    /* Verify read data */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            if(rbuf[i][j] != erbuf[i][j])
+                TEST_ERROR
+
+    /* Close */
+    if(!(config & TEST_IO_CLOSE_SRC)) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Dclose(srcdset[2]) < 0)
+            TEST_ERROR
+        srcdset[2] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+    if(H5Dclose(vdset) < 0)
+        TEST_ERROR
+    vdset = -1;
+    if(H5Fclose(vfile) < 0)
+        TEST_ERROR
+    vfile = -1;
+    if(H5Sclose(srcspace[0]) < 0)
+        TEST_ERROR
+    srcspace[0] = -1;
+    if(H5Sclose(vspace[0]) < 0)
+        TEST_ERROR
+    vspace[0] = -1;
+    if(H5Sclose(vspace[1]) < 0)
+        TEST_ERROR
+    vspace[1] = -1;
+    if(H5Sclose(vspace[2]) < 0)
+        TEST_ERROR
+    vspace[2] = -1;
+    if(H5Sclose(memspace) < 0)
+        TEST_ERROR
+    memspace = -1;
+
+
+    /*
+     * Test 10: For code coverage: Vertical stripe virtual mappings, vertical
+     * block file selection, block memory selection, 3D VDS
+     */
+    /* Clear virtual layout in DCPL */
+    if(H5Pset_layout(dcpl, H5D_VIRTUAL) < 0)
+        TEST_ERROR
+
+    /* Create memory dataspace */
+    if((memspace = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataspaces */
+    dims[0] = 10;
+    dims[1] = 9;
+    dims[2] = 6;
+    if((vspace[0] = H5Screate_simple(3, dims, NULL)) < 0)
+        TEST_ERROR
+    if((vspace[1] = H5Screate_simple(3, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Create source dataspace */
+    dims[1] = 12;
+    if((srcspace[0] = H5Screate_simple(2, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* Select all in source space (should not be necessary, but just to be sure)
+     */
+    if(H5Sselect_all(srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Select hyperslabs in virtual spaces */
+    start[0] = 0;
+    start[1] = 0;
+    start[2] = 0;
+    count[0] = 1;
+    count[1] = 4;
+    count[2] = 3;
+    stride[0] = 1;
+    stride[1] = 2;
+    stride[2] = 2;
+    block[0] = 10;
+    block[1] = 1;
+    block[2] = 1;
+    if(H5Sselect_hyperslab(vspace[0], H5S_SELECT_SET, start, stride, count, block) < 0)
+        TEST_ERROR
+    start[2] = 1;
+    if(H5Sselect_hyperslab(vspace[1], H5S_SELECT_SET, start, stride, count, block) < 0)
+        TEST_ERROR
+
+    /* Add virtual layout mappings */
+    if(H5Pset_virtual(dcpl, vspace[0], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset1", srcspace[0]) < 0)
+        TEST_ERROR
+    if(H5Pset_virtual(dcpl, vspace[1], config & TEST_IO_DIFFERENT_FILE ? srcfilename_map : ".", "src_dset2", srcspace[0]) < 0)
+        TEST_ERROR
+
+    /* Reset dims */
+    dims[0] = 10;
+    dims[1] = 26;
+
+    /* Create virtual file */
+    if((vfile = H5Fcreate(vfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+        TEST_ERROR
+
+    /* Create source file if requested */
+    if(config & TEST_IO_DIFFERENT_FILE) {
+        if((srcfile[0] = H5Fcreate(srcfilename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+            TEST_ERROR
+    }
+    else {
+        srcfile[0] = vfile;
+        if(H5Iinc_ref(srcfile[0]) < 0)
+            TEST_ERROR
+    }
+
+    /* Create source datasets */
+    if((srcdset[0] = H5Dcreate2(srcfile[0], "src_dset1", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+    if((srcdset[1] = H5Dcreate2(srcfile[0], "src_dset2", H5T_NATIVE_INT, srcspace[0], H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Create virtual dataset */
+    if((vdset = H5Dcreate2(vfile, "v_dset", H5T_NATIVE_INT, vspace[0], H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+        TEST_ERROR
+
+    /* Initialize erbuf */
+    HDmemset(erbuf[0], 0, sizeof(rbuf));
+    for(i = 0; i < 10; i++)
+        for(j = 0; j < 24; j += 6) {
+            erbuf[i][j] = -1;
+            erbuf[i][j + 1] = -1;
+        }
+
+    /* Populate write buffer */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            buf[i][j] = (i * (int)(sizeof(buf[0]) / sizeof(buf[0][0]))) + j;
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    count[0] = 10;
+    count[1] = 12;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to first source dataset */
+    if(H5Dwrite(srcdset[0], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    u = 0;
+    v = 0;
+    for(i = 0; i < 10; i++)
+        for(j = 0; j < 8; j++) {
+            if(v == 0 || v == 12)
+                erbuf[u][v] = buf[i][j];
+            v += 2;
+            if(!(v % 6))
+                v += 6;
+            if(v >= 28) {
+                u++;
+                v = 0;
+            }
+        }
+
+    /* Select hyperslab in memory */
+    start[1] = 8;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Write data directly to second source dataset */
+    if(H5Dwrite(srcdset[1], H5T_NATIVE_INT, memspace, H5S_ALL, H5P_DEFAULT, buf[0]) < 0)
+        TEST_ERROR
+
+    /* Update erbuf */
+    u = 0;
+    v = 1;
+    for(i = 0; i < 10; i++)
+        for(j = 8; j < 16; j++) {
+            if(v == 1 || v == 13)
+                erbuf[u][v] = buf[i][j];
+            v += 2;
+            if(!((v - 1) % 6))
+                v += 6;
+            if(v >= 28) {
+                u++;
+                v = 1;
+            }
+        }
+
+    /* Close srcdsets and srcfile if config option specified */
+    if(config & TEST_IO_CLOSE_SRC) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+
+    /* Reopen virtual dataset and file if config option specified */
+    if(config & TEST_IO_REOPEN_VIRT) {
+        if(H5Dclose(vdset) < 0)
+            TEST_ERROR
+        vdset = -1;
+        if(H5Fclose(vfile) < 0)
+            TEST_ERROR
+        vfile = -1;
+        if((vfile = H5Fopen(vfilename, H5F_ACC_RDWR, fapl)) < 0)
+            TEST_ERROR
+        if((vdset = H5Dopen2(vfile, "v_dset", H5P_DEFAULT)) < 0)
+            TEST_ERROR
+    }
+
+    /* Select hyperslab in memory */
+    start[0] = 0;
+    start[1] = 0;
+    stride[0] = 1;
+    stride[1] = 6;
+    count[0] = 1;
+    count[1] = 4;
+    block[0] = 10;
+    block[1] = 2;
+    if(H5Sselect_hyperslab(memspace, H5S_SELECT_SET, start, stride, count, block) < 0)
+        TEST_ERROR
+
+    /* Select hyperslab in file */
+    start[0] = 0;
+    start[1] = 0;
+    start[2] = 0;
+    count[0] = 10;
+    count[1] = 4;
+    count[2] = 2;
+    if(H5Sselect_hyperslab(vspace[0], H5S_SELECT_SET, start, NULL, count, NULL) < 0)
+        TEST_ERROR
+
+    /* Read data through virtual dataset */
+    HDmemset(rbuf[0], 0, sizeof(rbuf));
+    if(H5Dread(vdset, H5T_NATIVE_INT, memspace, vspace[0], H5P_DEFAULT, rbuf[0]) < 0)
+        TEST_ERROR
+
+    /* Verify read data */
+    for(i = 0; i < (int)(sizeof(buf) / sizeof(buf[0])); i++)
+        for(j = 0; j < (int)(sizeof(buf[0]) / sizeof(buf[0][0])); j++)
+            if(rbuf[i][j] != erbuf[i][j])
+                TEST_ERROR
+
+    /* Close */
+    if(!(config & TEST_IO_CLOSE_SRC)) {
+        if(H5Dclose(srcdset[0]) < 0)
+            TEST_ERROR
+        srcdset[0] = -1;
+        if(H5Dclose(srcdset[1]) < 0)
+            TEST_ERROR
+        srcdset[1] = -1;
+        if(H5Fclose(srcfile[0]) < 0)
+            TEST_ERROR
+        srcfile[0] = -1;
+    }
+    if(H5Dclose(vdset) < 0)
+        TEST_ERROR
+    vdset = -1;
+    if(H5Fclose(vfile) < 0)
+        TEST_ERROR
+    vfile = -1;
+    if(H5Sclose(srcspace[0]) < 0)
+        TEST_ERROR
+    srcspace[0] = -1;
+    if(H5Sclose(vspace[0]) < 0)
+        TEST_ERROR
+    vspace[0] = -1;
+    if(H5Sclose(vspace[1]) < 0)
+        TEST_ERROR
+    vspace[1] = -1;
+    if(H5Sclose(memspace) < 0)
+        TEST_ERROR
+    memspace = -1;
+
+
     /* Close */
     if(H5Pclose(dcpl) < 0)
         TEST_ERROR
diff --git a/test/vol.c b/test/vol.c
index 3f6afaa..5ff0af0 100644
--- a/test/vol.c
+++ b/test/vol.c
@@ -11,7 +11,7 @@
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 /*
- * Purpose:	Tests the virtual object layer (H5VL)
+ * Purpose: Tests the virtual object layer (H5VL)
  *
  *          This is a minimal test to ensure VOL usage (setting a VOL, etc.)
  *          works as expected. Actual VOL functionality is tested using
@@ -148,50 +148,83 @@ static const H5VL_class_t fake_vol_g = {
 static herr_t
 test_vol_registration(void)
 {
-    htri_t is_registered;
-    hid_t vol_id = -1, vol_id2 = -1;
+    hid_t native_id = H5I_INVALID_HID;
+    hid_t lapl_id = H5I_INVALID_HID;
+    hid_t vipl_id = H5I_INVALID_HID;
+    herr_t ret = SUCCEED;
+    htri_t is_registered = FAIL;
+    hid_t vol_id = H5I_INVALID_HID;
+    hid_t vol_id2 = H5I_INVALID_HID;
 
     TESTING("VOL registration");
 
     /* The test/fake VOL connector should not be registered at the start of the test */
     if ((is_registered = H5VLis_connector_registered(FAKE_VOL_NAME)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
     if (is_registered > 0)
-        FAIL_PUTS_ERROR("native VOL connector is inappropriately registered");
+        FAIL_PUTS_ERROR("VOL connector is inappropriately registered");
 
-    /* Load a VOL interface */
-    if ((vol_id = H5VLregister_connector(&fake_vol_g, H5P_DEFAULT)) < 0)
-        FAIL_STACK_ERROR;
+    /* Test registering a connector with an incorrect property list (SHOULD FAIL) */
+    if ((lapl_id = H5Pcreate(H5P_LINK_ACCESS)) < 0)
+        TEST_ERROR;
+    H5E_BEGIN_TRY {
+        vol_id = H5VLregister_connector(&fake_vol_g, lapl_id);
+    } H5E_END_TRY;
+    if (H5I_INVALID_HID != vol_id)
+        FAIL_PUTS_ERROR("should not be able to register a connector with an incorrect property list");
+    if (H5Pclose(lapl_id) < 0)
+        TEST_ERROR;
+
+    /* Load a VOL interface
+     * The vipl_id does nothing without a VOL that needs it, but we do need to
+     * test creating a property list of that class and passing it along as a
+     * smoke check.
+     */
+    if ((vipl_id = H5Pcreate(H5P_VOL_INITIALIZE)) < 0)
+        TEST_ERROR;
+    if ((vol_id = H5VLregister_connector(&fake_vol_g, vipl_id)) < 0)
+        TEST_ERROR;
+    if (H5Pclose(vipl_id) < 0)
+        TEST_ERROR;
 
     /* The test/fake VOL connector should be registered now */
     if ((is_registered = H5VLis_connector_registered(FAKE_VOL_NAME)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
     if (0 == is_registered)
-        FAIL_PUTS_ERROR("native VOL connector is un-registered");
+        FAIL_PUTS_ERROR("VOL connector is un-registered");
 
     /* Re-register a VOL connector */
     if ((vol_id2 = H5VLregister_connector(&fake_vol_g, H5P_DEFAULT)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
 
     /* The test/fake VOL connector should still be registered now */
     if ((is_registered = H5VLis_connector_registered(FAKE_VOL_NAME)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
     if (0 == is_registered)
-        FAIL_PUTS_ERROR("native VOL connector is un-registered");
+        FAIL_PUTS_ERROR("VOL connector is un-registered");
 
     /* Unregister the second test/fake VOL ID */
     if (H5VLunregister_connector(vol_id2) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
 
     /* The test/fake VOL connector should still be registered now */
     if ((is_registered = H5VLis_connector_registered(FAKE_VOL_NAME)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
     if (0 == is_registered)
-        FAIL_PUTS_ERROR("native VOL connector is un-registered");
+        FAIL_PUTS_ERROR("VOL connector is un-registered");
 
     /* Unregister the original test/fake VOL ID */
     if (H5VLunregister_connector(vol_id) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
+
+    /* Try to unregister the native VOL connector (should fail) */
+    if (H5I_INVALID_HID == (native_id = H5VLget_connector_id(H5VL_NATIVE_NAME)))
+        TEST_ERROR;
+    H5E_BEGIN_TRY {
+        ret = H5VLunregister_connector(native_id);
+    } H5E_END_TRY;
+    if (FAIL != ret)
+        FAIL_PUTS_ERROR("should not be able to unregister the native VOL connector");
 
     PASSED();
     return SUCCEED;
@@ -199,6 +232,8 @@ test_vol_registration(void)
 error:
     H5E_BEGIN_TRY {
         H5VLunregister_connector(vol_id);
+        H5Pclose(lapl_id);
+        H5Pclose(vipl_id);
     } H5E_END_TRY;
     return FAIL;
 
@@ -223,7 +258,7 @@ test_native_vol_init(void)
 
     /* The native VOL connector should always be registered */
     if ((is_registered = H5VLis_connector_registered(H5VL_NATIVE_NAME)) < 0)
-        FAIL_STACK_ERROR;
+        TEST_ERROR;
     if (0 == is_registered)
         FAIL_PUTS_ERROR("native VOL connector is un-registered");
 
@@ -281,7 +316,7 @@ test_basic_file_operation(const char *env_h5_drvr)
     if(H5Pset_fclose_degree(fapl_id, H5F_CLOSE_SEMI) < 0)
         TEST_ERROR;
     if(H5Pset_metadata_read_attempts(fapl_id, 9) < 0)
-        FAIL_STACK_ERROR
+        TEST_ERROR
 
     /* H5Fcreate */
     if ((fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id)) < 0)