HDFFV-10297 add h5copy test and fix h5diff errors

17 files changed, 260 insertions, 23 deletions

diff --git a/tools/test/h5copy/CMakeLists.txt b/tools/test/h5copy/CMakeLists.txt
index 4a519ab..c57cd5e 100644
--- a/tools/test/h5copy/CMakeLists.txt
+++ b/tools/test/h5copy/CMakeLists.txt
@@ -10,14 +10,44 @@ INCLUDE_DIRECTORIES (${HDF5_TOOLS_DIR}/lib)
 # Add the h5copy test executables
 # --------------------------------------------------------------------
 
-  if (HDF5_BUILD_GENERATORS)
-    add_executable (h5copygentest ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/h5copygentest.c)
-    TARGET_NAMING (h5copygentest STATIC)
-    TARGET_C_PROPERTIES (h5copygentest STATIC " " " ")
-    target_link_libraries (h5copygentest ${HDF5_LIB_TARGET})
-    set_target_properties (h5copygentest PROPERTIES FOLDER generator/tools)
+if (HDF5_BUILD_GENERATORS)
+  add_executable (h5copygentest ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/h5copygentest.c)
+  TARGET_NAMING (h5copygentest STATIC)
+  TARGET_C_PROPERTIES (h5copygentest STATIC " " " ")
+  target_link_libraries (h5copygentest ${HDF5_LIB_TARGET})
+  set_target_properties (h5copygentest PROPERTIES FOLDER generator/tools)
 
-    #add_test (NAME h5copygentest COMMAND $<TARGET_FILE:h5copygentest>)
-  endif ()
+  #add_test (NAME h5copygentest COMMAND $<TARGET_FILE:h5copygentest>)
+endif ()
 
-  include (CMakeTests.cmake)
+#-----------------------------------------------------------------------------
+# If plugin library tests can be tested
+#-----------------------------------------------------------------------------
+if (BUILD_SHARED_LIBS)
+  set (HDF5_TOOL_PLUGIN_LIB_CORENAME         "dynlibcopy")
+  set (HDF5_TOOL_PLUGIN_LIB_NAME             "${HDF5_EXTERNAL_LIB_PREFIX}${HDF5_TOOL_PLUGIN_LIB_CORENAME}")
+  set (HDF5_TOOL_PLUGIN_LIB_TARGET           ${HDF5_TOOL_PLUGIN_LIB_CORENAME})
+  add_definitions (${HDF_EXTRA_C_FLAGS})
+  INCLUDE_DIRECTORIES (${HDF5_SRC_DIR})
+
+  add_library (${HDF5_TOOL_PLUGIN_LIB_TARGET} SHARED dynlib_copy.c)
+  TARGET_C_PROPERTIES (${HDF5_TOOL_PLUGIN_LIB_TARGET} SHARED " " " ")
+  target_link_libraries (${HDF5_TOOL_PLUGIN_LIB_TARGET} ${HDF5_TEST_LIB_TARGET})
+  H5_SET_LIB_OPTIONS (${HDF5_TOOL_PLUGIN_LIB_TARGET} ${HDF5_TOOL_PLUGIN_LIB_NAME} SHARED ${HDF5_PACKAGE_SOVERSION})
+
+  # make plugins dir
+  file (MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/plugins")
+  #-----------------------------------------------------------------------------
+  # Copy plugin library to a plugins folder
+  #-----------------------------------------------------------------------------
+  add_custom_command (
+      TARGET     ${HDF5_TOOL_PLUGIN_LIB_TARGET}
+      POST_BUILD
+      COMMAND    ${CMAKE_COMMAND}
+      ARGS       -E copy_if_different
+          "$<TARGET_FILE:${HDF5_TOOL_PLUGIN_LIB_TARGET}>"
+          "${CMAKE_BINARY_DIR}/plugins/$<TARGET_FILE_NAME:${HDF5_TOOL_PLUGIN_LIB_TARGET}>"
+  )
+endif ()
+
+include (CMakeTests.cmake)
diff --git a/tools/test/h5copy/CMakeTests.cmake b/tools/test/h5copy/CMakeTests.cmake
index b60c0e9..f9733cf 100644
--- a/tools/test/h5copy/CMakeTests.cmake
+++ b/tools/test/h5copy/CMakeTests.cmake
@@ -24,10 +24,14 @@
       ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/h5copy_extlinks_trg.h5
       ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/h5copy_ref.h5
       ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/h5copytst.h5
+      ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/tudfilter.h5
+      ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/tudfilter2.h5
   )
 
   set (LIST_OTHER_TEST_FILES
       ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/h5copy_misc1.out
+      ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/tudfilter.h5.txt
+      ${HDF5_TOOLS_TEST_H5COPY_SOURCE_DIR}/testfiles/tudfilter.h5_ERR.txt
   )
 
   file (MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/testfiles")
@@ -74,7 +78,7 @@
     if (NOT "${resultcode}" STREQUAL "2")
       add_test (
           NAME H5COPY_F-${testname}-DIFF
-          COMMAND $<TARGET_FILE:h5diff> -q ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
+          COMMAND $<TARGET_FILE:h5diff> -v ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
       )
       SET_TESTS_PROPERTIES(H5COPY_F-${testname}-DIFF PROPERTIES DEPENDS H5COPY_F-${testname})
       if ("${resultcode}" STREQUAL "1")
@@ -110,7 +114,7 @@
     if (NOT "${resultcode}" STREQUAL "2")
       add_test (
           NAME H5COPY-${testname}-DIFF
-          COMMAND $<TARGET_FILE:h5diff> -q ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
+          COMMAND $<TARGET_FILE:h5diff> -v ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
       )
       SET_TESTS_PROPERTIES(H5COPY-${testname}-DIFF PROPERTIES DEPENDS H5COPY-${testname})
       if ("${resultcode}" STREQUAL "1")
@@ -160,7 +164,7 @@
     if (NOT "${resultcode}" STREQUAL "2")
       add_test (
           NAME H5COPY-${testname}-DIFF
-          COMMAND $<TARGET_FILE:h5diff> -q ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
+          COMMAND $<TARGET_FILE:h5diff> -v ./testfiles/${infile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
       )
       SET_TESTS_PROPERTIES(H5COPY-${testname}-DIFF PROPERTIES DEPENDS H5COPY-${testname})
       if ("${resultcode}" STREQUAL "1")
@@ -201,7 +205,7 @@
     if (NOT "${resultcode}" STREQUAL "2")
       add_test (
           NAME H5COPY_SAME-${testname}-DIFF
-          COMMAND $<TARGET_FILE:h5diff> -q ./testfiles/${testname}.out.h5 ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
+          COMMAND $<TARGET_FILE:h5diff> -v ./testfiles/${testname}.out.h5 ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
       )
       SET_TESTS_PROPERTIES(H5COPY_SAME-${testname}-DIFF PROPERTIES DEPENDS H5COPY_SAME-${testname})
       if ("${resultcode}" STREQUAL "1")
@@ -250,6 +254,108 @@
     endif ()
   endmacro ()
 
+  macro (ADD_H5_UD_TEST testname resultcode infile sparam srcname dparam dstname cmpfile)
+    if (NOT HDF5_ENABLE_USING_MEMCHECKER)
+      # Remove any output file left over from previous test run
+      add_test (
+          NAME H5COPY_UD-${testname}-clear-objects
+          COMMAND    ${CMAKE_COMMAND}
+              -E remove
+              testfiles/${testname}.out.h5
+              testfiles/${infile}.out
+              testfiles/${infile}.out.err
+      )
+      if ("${resultcode}" STREQUAL "2")
+        add_test (
+            NAME H5COPY_UD-${testname}
+            COMMAND "${CMAKE_COMMAND}"
+                -D "TEST_PROGRAM=$<TARGET_FILE:h5copy-shared>"
+                -D "TEST_ARGS:STRING=-v;-i;./testfiles/${infile};-o;./testfiles/${testname}.out.h5;${sparam};${srcname};${dparam};${dstname}"
+                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}"
+                -D "TEST_OUTPUT=./testfiles/${infile}.out"
+                -D "TEST_EXPECT=${resultcode}"
+                -D "TEST_REFERENCE=./testfiles/${infile}.txt"
+                -D "TEST_APPEND=EXIT CODE:"
+                -D "TEST_ENV_VAR=HDF5_PLUGIN_PATH"
+                -D "TEST_ENV_VALUE=${CMAKE_BINARY_DIR}"
+                -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
+        )
+      else ()
+        add_test (
+            NAME H5COPY_UD-${testname}
+            COMMAND "${CMAKE_COMMAND}"
+                -D "TEST_PROGRAM=$<TARGET_FILE:h5copy-shared>"
+                -D "TEST_ARGS:STRING=-v;-i;./testfiles/${infile};-o;./testfiles/${testname}.out.h5;${sparam};${srcname};${dparam};${dstname}"
+                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}"
+                -D "TEST_OUTPUT=./testfiles/${infile}.out"
+                -D "TEST_EXPECT=${resultcode}"
+                -D "TEST_REFERENCE=./testfiles/${infile}.txt"
+                -D "TEST_APPEND=EXIT CODE:"
+                -D "TEST_ENV_VAR=HDF5_PLUGIN_PATH"
+                -D "TEST_ENV_VALUE=${CMAKE_BINARY_DIR}/plugins"
+                -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
+        )
+        add_test (
+            NAME H5COPY_UD-${testname}-DIFF
+            COMMAND $<TARGET_FILE:h5diff> -v ./testfiles/${cmpfile} ./testfiles/${testname}.out.h5 ${srcname} ${dstname}
+        )
+        SET_TESTS_PROPERTIES(H5COPY_UD-${testname}-DIFF PROPERTIES DEPENDS H5COPY_UD-${testname})
+        if ("${resultcode}" STREQUAL "1")
+          set_tests_properties (H5COPY_UD-${testname}-DIFF PROPERTIES WILL_FAIL "true")
+        endif ()
+      endif ()
+      set_tests_properties (H5COPY_UD-${testname} PROPERTIES DEPENDS H5COPY_UD-${testname}-clear-objects)
+    endif ()
+  endmacro ()
+
+  macro (ADD_H5_UD_ERR_TEST testname resultcode infile sparam srcname dparam dstname cmpfile)
+    if (NOT HDF5_ENABLE_USING_MEMCHECKER)
+      # Remove any output file left over from previous test run
+      add_test (
+          NAME H5COPY_UD_ERR-${testname}-clearall-objects
+          COMMAND    ${CMAKE_COMMAND}
+              -E remove
+              testfiles/${testname}_ERR.out.h5
+              testfiles/${infile}_ERR.out
+              testfiles/${infile}_ERR.out.err
+      )
+      if ("${resultcode}" STREQUAL "2")
+        add_test (
+            NAME H5COPY_UD_ERR-${testname}
+            COMMAND "${CMAKE_COMMAND}"
+                -D "TEST_PROGRAM=$<TARGET_FILE:h5copy-shared>"
+                -D "TEST_ARGS:STRING=-v;--enable-error-stack;-i;./testfiles/${infile};-o;./testfiles/${testname}_ERR.out.h5;${sparam};${srcname};${dparam};${dstname}"
+                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}"
+                -D "TEST_OUTPUT=./testfiles/${infile}_ERR.out"
+                -D "TEST_EXPECT=${resultcode}"
+                -D "TEST_REFERENCE=./testfiles/${infile}_ERR.txt"
+                -D "TEST_MASK_ERROR=true"
+                -D "TEST_APPEND=EXIT CODE:"
+                -D "TEST_ENV_VAR=HDF5_PLUGIN_PATH"
+                -D "TEST_ENV_VALUE=${CMAKE_BINARY_DIR}"
+                -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
+        )
+      else ()
+        add_test (
+            NAME H5COPY_UD_ERR-${testname}
+            COMMAND "${CMAKE_COMMAND}"
+                -D "TEST_PROGRAM=$<TARGET_FILE:h5copy-shared>"
+                -D "TEST_ARGS:STRING=-v;--enable-error-stack;-i;./testfiles/${infile};-o;./testfiles/${testname}_ERR.out.h5;${sparam};${srcname};${dparam};${dstname}"
+                -D "TEST_FOLDER=${PROJECT_BINARY_DIR}"
+                -D "TEST_OUTPUT=./testfiles/${infile}_ERR.out"
+                -D "TEST_EXPECT=${resultcode}"
+                -D "TEST_REFERENCE=./testfiles/${infile}_ERR.txt"
+                -D "TEST_MASK_ERROR=true"
+                -D "TEST_APPEND=EXIT CODE:"
+                -D "TEST_ENV_VAR=HDF5_PLUGIN_PATH"
+                -D "TEST_ENV_VALUE=${CMAKE_BINARY_DIR}/plugins"
+                -P "${HDF_RESOURCES_EXT_DIR}/runTest.cmake"
+        )
+      endif ()
+      set_tests_properties (H5COPY_UD_ERR-${testname} PROPERTIES DEPENDS H5COPY_UD_ERR-${testname}-clearall-objects)
+    endif ()
+  endmacro ()
+
 ##############################################################################
 ##############################################################################
 ###           T H E   T E S T S                                            ###
@@ -434,3 +540,11 @@
   else ()
     ADD_H5_TEST_SAME (samefile2 2 ${HDF_FILE1}.h5 /grp_dsets /grp_dsets -v -s /grp_dsets -d /grp_dsets_cp)
   endif ()
+
+##############################################################################
+###    P L U G I N  T E S T S
+##############################################################################
+if (BUILD_SHARED_LIBS)
+  ADD_H5_UD_TEST (h5copy_plugin_test 0 tudfilter.h5 -s /dynlibud -d /dynlibud tudfilter2.h5 )
+  ADD_H5_UD_TEST (h5copy_plugin_fail 2 tudfilter.h5 -s /dynlibud -d /dynlibud tudfilter2.h5)
+endif ()
diff --git a/tools/test/h5copy/dynlib_copy.c b/tools/test/h5copy/dynlib_copy.c
new file mode 100644
index 0000000..571452e
--- /dev/null
+++ b/tools/test/h5copy/dynlib_copy.c
@@ -0,0 +1,89 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5. The full HDF5 copyright notice, including      *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+/*
+ * Purpose:    Tests the plugin module (H5PL)
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "H5PLextern.h"
+
+#define H5Z_FILTER_DYNLIBUD      300
+#define MULTIPLIER              3
+
+static size_t H5Z_filter_dynlibud(unsigned int flags, size_t cd_nelmts,
+                const unsigned int *cd_values, size_t nbytes, size_t *buf_size, void **buf);
+
+/* This message derives from H5Z */
+const H5Z_class2_t H5Z_DYNLIBUD[1] = {{
+    H5Z_CLASS_T_VERS,                /* H5Z_class_t version             */
+    H5Z_FILTER_DYNLIBUD,             /* Filter id number        */
+    1, 1,                            /* Encoding and decoding enabled   */
+    "dynlibud",                 /* Filter name for debugging    */
+    NULL,                            /* The "can apply" callback        */
+    NULL,                            /* The "set local" callback        */
+    (H5Z_func_t)H5Z_filter_dynlibud,    /* The actual filter function    */
+}};
+
+H5PL_type_t   H5PLget_plugin_type(void) {return H5PL_TYPE_FILTER;}
+const void   *H5PLget_plugin_info(void) {return H5Z_DYNLIBUD;}
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Z_filter_dynlibud
+ *
+ * Purpose:    A dynlib2 filter method that multiplies the original value
+ *              during write and divide the original value during read. It
+ *              will be built as a shared library.  plugin.c test will load
+ *              and use this filter library.
+ *
+ * Return:    Success:    Data chunk size
+ *
+ *        Failure:    0
+ *-------------------------------------------------------------------------
+ */
+static size_t
+H5Z_filter_dynlibud(unsigned int flags, size_t cd_nelmts,
+      const unsigned int *cd_values, size_t nbytes,
+      size_t *buf_size, void **buf)
+{
+    char *int_ptr = (char *)*buf;          /* Pointer to the data values */
+    size_t buf_left = *buf_size;  /* Amount of data buffer left to process */
+
+    /* Check for the correct number of parameters */
+    if(cd_nelmts > 0)
+        return(0);
+
+    /* Assignment to eliminate unused parameter warning. */
+    cd_values = cd_values;
+
+    if(flags & H5Z_FLAG_REVERSE) { /*read*/
+        /* Subtract the original value with MULTIPLIER */
+        while(buf_left > 0) {
+            char temp = *int_ptr;
+            *int_ptr = temp - MULTIPLIER;
+            int_ptr++;
+            buf_left -= sizeof(*int_ptr);
+        } /* end while */
+    } /* end if */
+    else { /*write*/
+        /* Add the original value with MULTIPLIER */
+        while(buf_left > 0) {
+            char temp = *int_ptr;
+            *int_ptr = temp + MULTIPLIER;
+            int_ptr++;
+            buf_left -= sizeof(*int_ptr);
+        } /* end while */
+    } /* end else */
+
+    return nbytes;
+} /* end H5Z_filter_dynlibud() */
+
diff --git a/tools/test/h5copy/testfiles/tudfilter.h5 b/tools/test/h5copy/testfiles/tudfilter.h5
new file mode 100644
index 0000000..081b000
--- /dev/null
+++ b/tools/test/h5copy/testfiles/tudfilter.h5
diff --git a/tools/test/h5copy/testfiles/tudfilter.h5.txt b/tools/test/h5copy/testfiles/tudfilter.h5.txt
new file mode 100644
index 0000000..8f3d0b5
--- /dev/null
+++ b/tools/test/h5copy/testfiles/tudfilter.h5.txt
@@ -0,0 +1,2 @@
+Copying file <./testfiles/tudfilter.h5> and object </dynlibud> to file <./testfiles/h5copy_plugin_fail.out.h5> and object </dynlibud>
+EXIT CODE: 0
diff --git a/tools/test/h5copy/testfiles/tudfilter.h5_ERR.txt b/tools/test/h5copy/testfiles/tudfilter.h5_ERR.txt
new file mode 100644
index 0000000..8f3d0b5
--- /dev/null
+++ b/tools/test/h5copy/testfiles/tudfilter.h5_ERR.txt
@@ -0,0 +1,2 @@
+Copying file <./testfiles/tudfilter.h5> and object </dynlibud> to file <./testfiles/h5copy_plugin_fail.out.h5> and object </dynlibud>
+EXIT CODE: 0
diff --git a/tools/test/h5copy/testfiles/tudfilter2.h5 b/tools/test/h5copy/testfiles/tudfilter2.h5
new file mode 100644
index 0000000..081b000
--- /dev/null
+++ b/tools/test/h5copy/testfiles/tudfilter2.h5
diff --git a/tools/test/h5diff/testfiles/h5diff_454_ERR.err b/tools/test/h5diff/testfiles/h5diff_454_ERR.err
index 8fa1718..82802a1 100644
--- a/tools/test/h5diff/testfiles/h5diff_454_ERR.err
+++ b/tools/test/h5diff/testfiles/h5diff_454_ERR.err
@@ -1,4 +1,4 @@
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
diff --git a/tools/test/h5diff/testfiles/h5diff_454_ERR.txt b/tools/test/h5diff/testfiles/h5diff_454_ERR.txt
index de25a69..4501071 100644
--- a/tools/test/h5diff/testfiles/h5diff_454_ERR.txt
+++ b/tools/test/h5diff/testfiles/h5diff_454_ERR.txt
@@ -1,6 +1,6 @@
 Warning: </softlink_noexist> is a dangling link.
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
 EXIT CODE: 2
diff --git a/tools/test/h5diff/testfiles/h5diff_455_ERR.err b/tools/test/h5diff/testfiles/h5diff_455_ERR.err
index 8fa1718..82802a1 100644
--- a/tools/test/h5diff/testfiles/h5diff_455_ERR.err
+++ b/tools/test/h5diff/testfiles/h5diff_455_ERR.err
@@ -1,4 +1,4 @@
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
diff --git a/tools/test/h5diff/testfiles/h5diff_455_ERR.txt b/tools/test/h5diff/testfiles/h5diff_455_ERR.txt
index de25a69..4501071 100644
--- a/tools/test/h5diff/testfiles/h5diff_455_ERR.txt
+++ b/tools/test/h5diff/testfiles/h5diff_455_ERR.txt
@@ -1,6 +1,6 @@
 Warning: </softlink_noexist> is a dangling link.
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
 EXIT CODE: 2
diff --git a/tools/test/h5diff/testfiles/h5diff_457_ERR.err b/tools/test/h5diff/testfiles/h5diff_457_ERR.err
index 8fa1718..82802a1 100644
--- a/tools/test/h5diff/testfiles/h5diff_457_ERR.err
+++ b/tools/test/h5diff/testfiles/h5diff_457_ERR.err
@@ -1,4 +1,4 @@
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
diff --git a/tools/test/h5diff/testfiles/h5diff_457_ERR.txt b/tools/test/h5diff/testfiles/h5diff_457_ERR.txt
index 6594c9a..9d73750 100644
--- a/tools/test/h5diff/testfiles/h5diff_457_ERR.txt
+++ b/tools/test/h5diff/testfiles/h5diff_457_ERR.txt
@@ -1,6 +1,6 @@
 Warning: </ext_link_noexist1> is a dangling link.
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
 EXIT CODE: 2
diff --git a/tools/test/h5diff/testfiles/h5diff_458_ERR.err b/tools/test/h5diff/testfiles/h5diff_458_ERR.err
index 8fa1718..82802a1 100644
--- a/tools/test/h5diff/testfiles/h5diff_458_ERR.err
+++ b/tools/test/h5diff/testfiles/h5diff_458_ERR.err
@@ -1,4 +1,4 @@
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
diff --git a/tools/test/h5diff/testfiles/h5diff_458_ERR.txt b/tools/test/h5diff/testfiles/h5diff_458_ERR.txt
index 9a09c17..b084914 100644
--- a/tools/test/h5diff/testfiles/h5diff_458_ERR.txt
+++ b/tools/test/h5diff/testfiles/h5diff_458_ERR.txt
@@ -1,6 +1,6 @@
 Warning: </ext_link_noexist2> is a dangling link.
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
 EXIT CODE: 2
diff --git a/tools/test/h5diff/testfiles/h5diff_459_ERR.err b/tools/test/h5diff/testfiles/h5diff_459_ERR.err
index 8fa1718..82802a1 100644
--- a/tools/test/h5diff/testfiles/h5diff_459_ERR.err
+++ b/tools/test/h5diff/testfiles/h5diff_459_ERR.err
@@ -1,4 +1,4 @@
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
diff --git a/tools/test/h5diff/testfiles/h5diff_459_ERR.txt b/tools/test/h5diff/testfiles/h5diff_459_ERR.txt
index 6594c9a..9d73750 100644
--- a/tools/test/h5diff/testfiles/h5diff_459_ERR.txt
+++ b/tools/test/h5diff/testfiles/h5diff_459_ERR.txt
@@ -1,6 +1,6 @@
 Warning: </ext_link_noexist1> is a dangling link.
 H5tools-DIAG: Error detected in HDF5:tools (version (number)) thread (IDs):
-  #000: (file name) line (number) in h5diff(): Error: treat dangling link as error
+  #000: (file name) line (number) in h5diff(): treat dangling link as error
     major: Failure in tools library
     minor: error in function
 EXIT CODE: 2