1 files changed, 93 insertions, 0 deletions
diff --git a/Utilities/ClangTidyModule/Tests/RunClangTidy.cmake b/Utilities/ClangTidyModule/Tests/RunClangTidy.cmake
new file mode 100644
index 0000000000..98770d7034
--- /dev/null
+++ b/Utilities/ClangTidyModule/Tests/RunClangTidy.cmake
@@ -0,0 +1,93 @@
+set(config_arg)
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}.clang-tidy")
+  set(config_arg "--config-file=${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}.clang-tidy")
+endif()
+
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}-stdout.txt")
+  file(READ "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}-stdout.txt" expect_stdout)
+  string(REGEX REPLACE "\n+$" "" expect_stdout "${expect_stdout}")
+else()
+  set(expect_stdout "")
+endif()
+
+set(source_file "${RunClangTidy_BINARY_DIR}/${CHECK_NAME}.cxx")
+configure_file("${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}.cxx" "${source_file}" COPYONLY)
+
+file(GLOB header_files RELATIVE "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}" "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}/*")
+file(REMOVE_RECURSE "${RunClangTiy_BINARY_DIR}/${CHECK_NAME}")
+foreach(header_file IN LISTS header_files)
+  if(NOT header_file MATCHES "-fixit\\.h\$")
+    file(MAKE_DIRECTORY "${RunClangTidy_BINARY_DIR}/${CHECK_NAME}")
+    configure_file("${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}/${header_file}" "${RunClangTidy_BINARY_DIR}/${CHECK_NAME}/${header_file}" COPYONLY)
+  endif()
+endforeach()
+
+set(command
+  "${CLANG_TIDY_COMMAND}"
+  "--load=${CLANG_TIDY_MODULE}"
+  "--checks=-*,${CHECK_NAME}"
+  "--fix"
+  "--format-style=file"
+  "--header-filter=/${CHECK_NAME}/"
+  ${config_arg}
+  "${source_file}"
+  --
+  )
+execute_process(
+  COMMAND ${command}
+  RESULT_VARIABLE result
+  OUTPUT_VARIABLE actual_stdout
+  ERROR_VARIABLE actual_stderr
+  )
+string(REPLACE "${RunClangTidy_BINARY_DIR}/" "" actual_stdout "${actual_stdout}")
+
+set(RunClangTidy_TEST_FAILED)
+
+if(NOT result EQUAL 0)
+  string(APPEND RunClangTidy_TEST_FAILED "Expected result: 0, actual result: ${result}\n")
+endif()
+
+string(REGEX REPLACE "\n+$" "" actual_stdout "${actual_stdout}")
+if(NOT actual_stdout STREQUAL expect_stdout)
+  string(REPLACE "\n" "\n  " expect_stdout_formatted "  ${expect_stdout}")
+  string(REPLACE "\n" "\n  " actual_stdout_formatted "  ${actual_stdout}")
+  string(APPEND RunClangTidy_TEST_FAILED "Expected stdout:\n${expect_stdout_formatted}\nActual stdout:\n${actual_stdout_formatted}\n")
+endif()
+
+function(check_fixit expected fallback_expected actual)
+  if(EXISTS "${expected}")
+    set(expect_fixit_file "${expected}")
+  else()
+    set(expect_fixit_file "${fallback_expected}")
+  endif()
+  file(READ "${expect_fixit_file}" expect_fixit)
+  file(READ "${actual}" actual_fixit)
+  if(NOT expect_fixit STREQUAL actual_fixit)
+    string(REPLACE "\n" "\n  " expect_fixit_formatted "  ${expect_fixit}")
+    string(REPLACE "\n" "\n  " actual_fixit_formatted "  ${actual_fixit}")
+    string(APPEND RunClangTidy_TEST_FAILED "Expected fixit for ${actual}:\n${expect_fixit_formatted}\nActual fixit:\n${actual_fixit_formatted}\n")
+    set(RunClangTidy_TEST_FAILED "${RunClangTidy_TEST_FAILED}" PARENT_SCOPE)
+  endif()
+endfunction()
+
+check_fixit(
+  "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}-fixit.cxx"
+  "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}.cxx"
+  "${source_file}"
+  )
+
+foreach(header_file IN LISTS header_files)
+  if(NOT header_file MATCHES "-fixit\\.h\$")
+    string(REGEX REPLACE "\\.h\$" "-fixit.h" header_fixit "${header_file}")
+    check_fixit(
+      "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}/${header_fixit}"
+      "${CMAKE_CURRENT_LIST_DIR}/${CHECK_NAME}/${header_file}"
+      "${RunClangTidy_BINARY_DIR}/${CHECK_NAME}/${header_file}"
+      )
+  endif()
+endforeach()
+
+if(RunClangTidy_TEST_FAILED)
+  string(REPLACE ";" " " command_formatted "${command}")
+  message(FATAL_ERROR "Command:\n  ${command_formatted}\n${RunClangTidy_TEST_FAILED}")
+endif()