1 files changed, 93 insertions, 0 deletions
diff --git a/Tests/RunCMake/CommandLineTar/roundtrip.cmake b/Tests/RunCMake/CommandLineTar/roundtrip.cmake
new file mode 100644
index 0000000..fa63d12
--- /dev/null
+++ b/Tests/RunCMake/CommandLineTar/roundtrip.cmake
@@ -0,0 +1,93 @@
+foreach(parameter OUTPUT_NAME COMPRESSION_FLAGS DECOMPRESSION_FLAGS)
+  if(NOT DEFINED ${parameter})
+    message(FATAL_ERROR "missing required parameter ${parameter}")
+  endif()
+endforeach()
+
+function(run_tar WORKING_DIRECTORY)
+  execute_process(COMMAND ${CMAKE_COMMAND} -E tar ${ARGN}
+    WORKING_DIRECTORY ${WORKING_DIRECTORY}
+    RESULT_VARIABLE result
+  )
+
+  if(NOT result STREQUAL "0")
+    message(FATAL_ERROR "tar failed with arguments [${ARGN}] result [${result}]")
+  endif()
+endfunction()
+
+set(COMPRESS_DIR compress_dir)
+set(FULL_COMPRESS_DIR ${CMAKE_CURRENT_BINARY_DIR}/${COMPRESS_DIR})
+
+set(DECOMPRESS_DIR decompress_dir)
+set(FULL_DECOMPRESS_DIR ${CMAKE_CURRENT_BINARY_DIR}/${DECOMPRESS_DIR})
+
+set(FULL_OUTPUT_NAME ${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_NAME})
+
+set(CHECK_FILES
+  "f1.txt"
+  "d1/f1.txt"
+  "d 2/f1.txt"
+  "d + 3/f1.txt"
+  "d_4/f1.txt"
+  "d-4/f1.txt"
+  "My Special Directory/f1.txt"
+)
+
+foreach(file ${CHECK_FILES})
+  configure_file(${CMAKE_CURRENT_LIST_FILE} ${FULL_COMPRESS_DIR}/${file} COPYONLY)
+endforeach()
+
+if(UNIX)
+  execute_process(COMMAND ln -sf f1.txt ${FULL_COMPRESS_DIR}/d1/f2.txt)
+  list(APPEND CHECK_FILES "d1/f2.txt")
+endif()
+
+file(REMOVE ${FULL_OUTPUT_NAME})
+file(REMOVE_RECURSE ${FULL_DECOMPRESS_DIR})
+file(MAKE_DIRECTORY ${FULL_DECOMPRESS_DIR})
+
+run_tar(${CMAKE_CURRENT_BINARY_DIR} ${COMPRESSION_FLAGS} ${FULL_OUTPUT_NAME} ${COMPRESSION_OPTIONS} ${COMPRESS_DIR})
+run_tar(${FULL_DECOMPRESS_DIR} ${DECOMPRESSION_FLAGS} ${FULL_OUTPUT_NAME} ${DECOMPRESSION_OPTIONS} -- ${DECOMPRESSION_PATHNAMES})
+
+if(CUSTOM_CHECK_FILES)
+  set(CHECK_FILES ${CUSTOM_CHECK_FILES})
+endif()
+
+foreach(file ${CHECK_FILES})
+  set(input ${FULL_COMPRESS_DIR}/${file})
+  set(output ${FULL_DECOMPRESS_DIR}/${COMPRESS_DIR}/${file})
+
+  if(NOT EXISTS ${input})
+     message(SEND_ERROR "Cannot find input file ${output}")
+  endif()
+
+  if(NOT EXISTS ${output})
+     message(SEND_ERROR "Cannot find output file ${output}")
+  endif()
+
+  file(MD5 ${input} input_md5)
+  file(MD5 ${output} output_md5)
+
+  if(NOT input_md5 STREQUAL output_md5)
+    message(SEND_ERROR "Files \"${input}\" and \"${output}\" are different")
+  endif()
+endforeach()
+
+foreach(file ${NOT_EXISTING_FILES_CHECK})
+  set(output ${FULL_DECOMPRESS_DIR}/${COMPRESS_DIR}/${file})
+
+  if(EXISTS ${output})
+     message(SEND_ERROR "File ${output} exists but it shouldn't")
+  endif()
+endforeach()
+
+function(check_magic EXPECTED)
+  file(READ ${FULL_OUTPUT_NAME} ACTUAL
+    ${ARGN}
+  )
+
+  if(NOT ACTUAL STREQUAL EXPECTED)
+    message(FATAL_ERROR
+      "Actual [${ACTUAL}] does not match expected [${EXPECTED}]")
+  endif()
+endfunction()