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- # Copyright Catch2 Authors
- # Distributed under the Boost Software License, Version 1.0.
- # (See accompanying file LICENSE_1_0.txt or copy at
- # https://www.boost.org/LICENSE_1_0.txt)
- # SPDX-License-Identifier: BSL-1.0
- # Supported optional args:
- # * SHARD_COUNT - number of shards to split target's tests into
- # * REPORTER - reporter spec to use for tests
- # * TEST_SPEC - test spec used for filtering tests
- function(catch_add_sharded_tests TARGET)
- if (${CMAKE_VERSION} VERSION_LESS "3.10.0")
- message(FATAL_ERROR "add_sharded_catch_tests only supports CMake versions 3.10.0 and up")
- endif()
- cmake_parse_arguments(
- ""
- ""
- "SHARD_COUNT;REPORTER;TEST_SPEC"
- ""
- ${ARGN}
- )
-
- if (NOT DEFINED _SHARD_COUNT)
- set(_SHARD_COUNT 2)
- endif()
- # Generate a unique name based on the extra arguments
- string(SHA1 args_hash "${_TEST_SPEC} ${_EXTRA_ARGS} ${_REPORTER} ${_OUTPUT_DIR} ${_OUTPUT_PREFIX} ${_OUTPUT_SUFFIX} ${_SHARD_COUNT}")
- string(SUBSTRING ${args_hash} 0 7 args_hash)
- set(ctest_include_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}-sharded-tests-include-${args_hash}.cmake")
- set(ctest_tests_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}-sharded-tests-impl-${args_hash}.cmake")
- file(WRITE "${ctest_include_file}"
- "if(EXISTS \"${ctest_tests_file}\")\n"
- " include(\"${ctest_tests_file}\")\n"
- "else()\n"
- " add_test(${TARGET}_NOT_BUILT-${args_hash} ${TARGET}_NOT_BUILT-${args_hash})\n"
- "endif()\n"
- )
- set_property(DIRECTORY
- APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
- )
- set(shard_impl_script_file "${CMAKE_CURRENT_LIST_DIR}/CatchShardTestsImpl.cmake")
- add_custom_command(
- TARGET ${TARGET} POST_BUILD
- BYPRODUCTS "${ctest_tests_file}"
- COMMAND "${CMAKE_COMMAND}"
- -D "TARGET_NAME=${TARGET}"
- -D "TEST_BINARY=$<TARGET_FILE:${TARGET}>"
- -D "CTEST_FILE=${ctest_tests_file}"
- -D "SHARD_COUNT=${_SHARD_COUNT}"
- -D "REPORTER_SPEC=${_REPORTER}"
- -D "TEST_SPEC=${_TEST_SPEC}"
- -P "${shard_impl_script_file}"
- VERBATIM
- )
- endfunction()
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