vendor Catch2 and ETL

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parent 3915e0d641
commit 5173292491
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
Catch
-----
This module defines a function to help use the Catch test framework.
The :command:`catch_discover_tests` discovers tests by asking the compiled test
executable to enumerate its tests. This does not require CMake to be re-run
when tests change. However, it may not work in a cross-compiling environment,
and setting test properties is less convenient.
This command is intended to replace use of :command:`add_test` to register
tests, and will create a separate CTest test for each Catch test case. Note
that this is in some cases less efficient, as common set-up and tear-down logic
cannot be shared by multiple test cases executing in the same instance.
However, it provides more fine-grained pass/fail information to CTest, which is
usually considered as more beneficial. By default, the CTest test name is the
same as the Catch name; see also ``TEST_PREFIX`` and ``TEST_SUFFIX``.
.. command:: catch_discover_tests
Automatically add tests with CTest by querying the compiled test executable
for available tests::
catch_discover_tests(target
[TEST_SPEC arg1...]
[EXTRA_ARGS arg1...]
[WORKING_DIRECTORY dir]
[TEST_PREFIX prefix]
[TEST_SUFFIX suffix]
[PROPERTIES name1 value1...]
[TEST_LIST var]
[REPORTER reporter]
[OUTPUT_DIR dir]
[OUTPUT_PREFIX prefix]
[OUTPUT_SUFFIX suffix]
[DISCOVERY_MODE <POST_BUILD|PRE_TEST>]
[SKIP_IS_FAILURE]
)
``catch_discover_tests`` sets up a post-build command on the test executable
that generates the list of tests by parsing the output from running the test
with the ``--list-test-names-only`` argument. This ensures that the full
list of tests is obtained. Since test discovery occurs at build time, it is
not necessary to re-run CMake when the list of tests changes.
However, it requires that :prop_tgt:`CROSSCOMPILING_EMULATOR` is properly set
in order to function in a cross-compiling environment.
Additionally, setting properties on tests is somewhat less convenient, since
the tests are not available at CMake time. Additional test properties may be
assigned to the set of tests as a whole using the ``PROPERTIES`` option. If
more fine-grained test control is needed, custom content may be provided
through an external CTest script using the :prop_dir:`TEST_INCLUDE_FILES`
directory property. The set of discovered tests is made accessible to such a
script via the ``<target>_TESTS`` variable.
The options are:
``target``
Specifies the Catch executable, which must be a known CMake executable
target. CMake will substitute the location of the built executable when
running the test.
``TEST_SPEC arg1...``
Specifies test cases, wildcarded test cases, tags and tag expressions to
pass to the Catch executable with the ``--list-test-names-only`` argument.
``EXTRA_ARGS arg1...``
Any extra arguments to pass on the command line to each test case.
``WORKING_DIRECTORY dir``
Specifies the directory in which to run the discovered test cases. If this
option is not provided, the current binary directory is used.
``TEST_PREFIX prefix``
Specifies a ``prefix`` to be prepended to the name of each discovered test
case. This can be useful when the same test executable is being used in
multiple calls to ``catch_discover_tests()`` but with different
``TEST_SPEC`` or ``EXTRA_ARGS``.
``TEST_SUFFIX suffix``
Similar to ``TEST_PREFIX`` except the ``suffix`` is appended to the name of
every discovered test case. Both ``TEST_PREFIX`` and ``TEST_SUFFIX`` may
be specified.
``PROPERTIES name1 value1...``
Specifies additional properties to be set on all tests discovered by this
invocation of ``catch_discover_tests``.
``TEST_LIST var``
Make the list of tests available in the variable ``var``, rather than the
default ``<target>_TESTS``. This can be useful when the same test
executable is being used in multiple calls to ``catch_discover_tests()``.
Note that this variable is only available in CTest.
``REPORTER reporter``
Use the specified reporter when running the test case. The reporter will
be passed to the Catch executable as ``--reporter reporter``.
``OUTPUT_DIR dir``
If specified, the parameter is passed along as
``--out dir/<test_name>`` to Catch executable. The actual file name is the
same as the test name. This should be used instead of
``EXTRA_ARGS --out foo`` to avoid race conditions writing the result output
when using parallel test execution.
``OUTPUT_PREFIX prefix``
May be used in conjunction with ``OUTPUT_DIR``.
If specified, ``prefix`` is added to each output file name, like so
``--out dir/prefix<test_name>``.
``OUTPUT_SUFFIX suffix``
May be used in conjunction with ``OUTPUT_DIR``.
If specified, ``suffix`` is added to each output file name, like so
``--out dir/<test_name>suffix``. This can be used to add a file extension to
the output e.g. ".xml".
``DL_PATHS path...``
Specifies paths that need to be set for the dynamic linker to find shared
libraries/DLLs when running the test executable (PATH/LD_LIBRARY_PATH respectively).
These paths will both be set when retrieving the list of test cases from the
test executable and when the tests are executed themselves. This requires
cmake/ctest >= 3.22.
``DL_FRAMEWORK_PATHS path...``
Specifies paths that need to be set for the dynamic linker to find libraries
packaged as frameworks on Apple platforms when running the test executable
(DYLD_FRAMEWORK_PATH). These paths will both be set when retrieving the list
of test cases from the test executable and when the tests are executed themselves.
This requires cmake/ctest >= 3.22.
``DISCOVERY_MODE mode``
Provides control over when ``catch_discover_tests`` performs test discovery.
By default, ``POST_BUILD`` sets up a post-build command to perform test discovery
at build time. In certain scenarios, like cross-compiling, this ``POST_BUILD``
behavior is not desirable. By contrast, ``PRE_TEST`` delays test discovery until
just prior to test execution. This way test discovery occurs in the target environment
where the test has a better chance at finding appropriate runtime dependencies.
``DISCOVERY_MODE`` defaults to the value of the
``CMAKE_CATCH_DISCOVER_TESTS_DISCOVERY_MODE`` variable if it is not passed when
calling ``catch_discover_tests``. This provides a mechanism for globally selecting
a preferred test discovery behavior without having to modify each call site.
``SKIP_IS_FAILURE``
Disables skipped test detection.
#]=======================================================================]
#------------------------------------------------------------------------------
function(catch_discover_tests TARGET)
cmake_parse_arguments(
""
"SKIP_IS_FAILURE"
"TEST_PREFIX;TEST_SUFFIX;WORKING_DIRECTORY;TEST_LIST;REPORTER;OUTPUT_DIR;OUTPUT_PREFIX;OUTPUT_SUFFIX;DISCOVERY_MODE"
"TEST_SPEC;EXTRA_ARGS;PROPERTIES;DL_PATHS;DL_FRAMEWORK_PATHS"
${ARGN}
)
if(NOT _WORKING_DIRECTORY)
set(_WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
endif()
if(NOT _TEST_LIST)
set(_TEST_LIST ${TARGET}_TESTS)
endif()
if(_DL_PATHS AND ${CMAKE_VERSION} VERSION_LESS "3.22.0")
message(FATAL_ERROR "The DL_PATHS option requires at least cmake 3.22")
endif()
if(_DL_FRAMEWORK_PATHS AND ${CMAKE_VERSION} VERSION_LESS "3.22.0")
message(FATAL_ERROR "The DL_FRAMEWORK_PATHS option requires at least cmake 3.22")
endif()
if(NOT _DISCOVERY_MODE)
if(NOT CMAKE_CATCH_DISCOVER_TESTS_DISCOVERY_MODE)
set(CMAKE_CATCH_DISCOVER_TESTS_DISCOVERY_MODE "POST_BUILD")
endif()
set(_DISCOVERY_MODE ${CMAKE_CATCH_DISCOVER_TESTS_DISCOVERY_MODE})
endif()
if (NOT _DISCOVERY_MODE MATCHES "^(POST_BUILD|PRE_TEST)$")
message(FATAL_ERROR "Unknown DISCOVERY_MODE: ${_DISCOVERY_MODE}")
endif()
## Generate a unique name based on the extra arguments
string(SHA1 args_hash "${_TEST_SPEC} ${_EXTRA_ARGS} ${_REPORTER} ${_OUTPUT_DIR} ${_OUTPUT_PREFIX} ${_OUTPUT_SUFFIX}")
string(SUBSTRING ${args_hash} 0 7 args_hash)
# Define rule to generate test list for aforementioned test executable
set(ctest_file_base "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}-${args_hash}")
set(ctest_include_file "${ctest_file_base}_include.cmake")
set(ctest_tests_file "${ctest_file_base}_tests.cmake")
get_property(crosscompiling_emulator
TARGET ${TARGET}
PROPERTY CROSSCOMPILING_EMULATOR
)
if (NOT _SKIP_IS_FAILURE)
set(_PROPERTIES ${_PROPERTIES} SKIP_RETURN_CODE 4)
endif()
if(_DISCOVERY_MODE STREQUAL "POST_BUILD")
add_custom_command(
TARGET ${TARGET} POST_BUILD
BYPRODUCTS "${ctest_tests_file}"
COMMAND "${CMAKE_COMMAND}"
-D "TEST_TARGET=${TARGET}"
-D "TEST_EXECUTABLE=$<TARGET_FILE:${TARGET}>"
-D "TEST_EXECUTOR=${crosscompiling_emulator}"
-D "TEST_WORKING_DIR=${_WORKING_DIRECTORY}"
-D "TEST_SPEC=${_TEST_SPEC}"
-D "TEST_EXTRA_ARGS=${_EXTRA_ARGS}"
-D "TEST_PROPERTIES=${_PROPERTIES}"
-D "TEST_PREFIX=${_TEST_PREFIX}"
-D "TEST_SUFFIX=${_TEST_SUFFIX}"
-D "TEST_LIST=${_TEST_LIST}"
-D "TEST_REPORTER=${_REPORTER}"
-D "TEST_OUTPUT_DIR=${_OUTPUT_DIR}"
-D "TEST_OUTPUT_PREFIX=${_OUTPUT_PREFIX}"
-D "TEST_OUTPUT_SUFFIX=${_OUTPUT_SUFFIX}"
-D "TEST_DL_PATHS=${_DL_PATHS}"
-D "TEST_DL_FRAMEWORK_PATHS=${_DL_FRAMEWORK_PATHS}"
-D "CTEST_FILE=${ctest_tests_file}"
-P "${_CATCH_DISCOVER_TESTS_SCRIPT}"
VERBATIM
)
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"
)
elseif(_DISCOVERY_MODE STREQUAL "PRE_TEST")
get_property(GENERATOR_IS_MULTI_CONFIG GLOBAL
PROPERTY GENERATOR_IS_MULTI_CONFIG
)
if(GENERATOR_IS_MULTI_CONFIG)
set(ctest_tests_file "${ctest_file_base}_tests-$<CONFIG>.cmake")
endif()
string(CONCAT ctest_include_content
"if(EXISTS \"$<TARGET_FILE:${TARGET}>\")" "\n"
" if(NOT EXISTS \"${ctest_tests_file}\" OR" "\n"
" NOT \"${ctest_tests_file}\" IS_NEWER_THAN \"$<TARGET_FILE:${TARGET}>\" OR\n"
" NOT \"${ctest_tests_file}\" IS_NEWER_THAN \"\${CMAKE_CURRENT_LIST_FILE}\")\n"
" include(\"${_CATCH_DISCOVER_TESTS_SCRIPT}\")" "\n"
" catch_discover_tests_impl(" "\n"
" TEST_EXECUTABLE" " [==[" "$<TARGET_FILE:${TARGET}>" "]==]" "\n"
" TEST_EXECUTOR" " [==[" "${crosscompiling_emulator}" "]==]" "\n"
" TEST_WORKING_DIR" " [==[" "${_WORKING_DIRECTORY}" "]==]" "\n"
" TEST_SPEC" " [==[" "${_TEST_SPEC}" "]==]" "\n"
" TEST_EXTRA_ARGS" " [==[" "${_EXTRA_ARGS}" "]==]" "\n"
" TEST_PROPERTIES" " [==[" "${_PROPERTIES}" "]==]" "\n"
" TEST_PREFIX" " [==[" "${_TEST_PREFIX}" "]==]" "\n"
" TEST_SUFFIX" " [==[" "${_TEST_SUFFIX}" "]==]" "\n"
" TEST_LIST" " [==[" "${_TEST_LIST}" "]==]" "\n"
" TEST_REPORTER" " [==[" "${_REPORTER}" "]==]" "\n"
" TEST_OUTPUT_DIR" " [==[" "${_OUTPUT_DIR}" "]==]" "\n"
" TEST_OUTPUT_PREFIX" " [==[" "${_OUTPUT_PREFIX}" "]==]" "\n"
" TEST_OUTPUT_SUFFIX" " [==[" "${_OUTPUT_SUFFIX}" "]==]" "\n"
" CTEST_FILE" " [==[" "${ctest_tests_file}" "]==]" "\n"
" TEST_DL_PATHS" " [==[" "${_DL_PATHS}" "]==]" "\n"
" TEST_DL_FRAMEWORK_PATHS" " [==[" "${_DL_FRAMEWORK_PATHS}" "]==]" "\n"
" CTEST_FILE" " [==[" "${CTEST_FILE}" "]==]" "\n"
" )" "\n"
" endif()" "\n"
" include(\"${ctest_tests_file}\")" "\n"
"else()" "\n"
" add_test(${TARGET}_NOT_BUILT ${TARGET}_NOT_BUILT)" "\n"
"endif()" "\n"
)
if(GENERATOR_IS_MULTI_CONFIG)
foreach(_config ${CMAKE_CONFIGURATION_TYPES})
file(GENERATE OUTPUT "${ctest_file_base}_include-${_config}.cmake" CONTENT "${ctest_include_content}" CONDITION $<CONFIG:${_config}>)
endforeach()
string(CONCAT ctest_include_multi_content
"if(NOT CTEST_CONFIGURATION_TYPE)" "\n"
" message(\"No configuration for testing specified, use '-C <cfg>'.\")" "\n"
"else()" "\n"
" include(\"${ctest_file_base}_include-\${CTEST_CONFIGURATION_TYPE}.cmake\")" "\n"
"endif()" "\n"
)
file(GENERATE OUTPUT "${ctest_include_file}" CONTENT "${ctest_include_multi_content}")
else()
file(GENERATE OUTPUT "${ctest_file_base}_include.cmake" CONTENT "${ctest_include_content}")
file(WRITE "${ctest_include_file}" "include(\"${ctest_file_base}_include.cmake\")")
endif()
endif()
if(NOT ${CMAKE_VERSION} VERSION_LESS "3.10.0")
# Add discovered tests to directory TEST_INCLUDE_FILES
set_property(DIRECTORY
APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
)
else()
# Add discovered tests as directory TEST_INCLUDE_FILE if possible
get_property(test_include_file_set DIRECTORY PROPERTY TEST_INCLUDE_FILE SET)
if (NOT ${test_include_file_set})
set_property(DIRECTORY
PROPERTY TEST_INCLUDE_FILE "${ctest_include_file}"
)
else()
message(FATAL_ERROR "Cannot set more than one TEST_INCLUDE_FILE")
endif()
endif()
endfunction()
###############################################################################
set(_CATCH_DISCOVER_TESTS_SCRIPT
${CMAKE_CURRENT_LIST_DIR}/CatchAddTests.cmake
CACHE INTERNAL "Catch2 full path to CatchAddTests.cmake helper file"
)

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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
function(add_command NAME)
set(_args "")
# use ARGV* instead of ARGN, because ARGN splits arrays into multiple arguments
math(EXPR _last_arg ${ARGC}-1)
foreach(_n RANGE 1 ${_last_arg})
set(_arg "${ARGV${_n}}")
if(_arg MATCHES "[^-./:a-zA-Z0-9_]")
set(_args "${_args} [==[${_arg}]==]") # form a bracket_argument
else()
set(_args "${_args} ${_arg}")
endif()
endforeach()
set(script "${script}${NAME}(${_args})\n" PARENT_SCOPE)
endfunction()
function(catch_discover_tests_impl)
cmake_parse_arguments(
""
""
"TEST_EXECUTABLE;TEST_WORKING_DIR;TEST_OUTPUT_DIR;TEST_OUTPUT_PREFIX;TEST_OUTPUT_SUFFIX;TEST_PREFIX;TEST_REPORTER;TEST_SPEC;TEST_SUFFIX;TEST_LIST;CTEST_FILE"
"TEST_EXTRA_ARGS;TEST_PROPERTIES;TEST_EXECUTOR;TEST_DL_PATHS;TEST_DL_FRAMEWORK_PATHS"
${ARGN}
)
set(prefix "${_TEST_PREFIX}")
set(suffix "${_TEST_SUFFIX}")
set(spec ${_TEST_SPEC})
set(extra_args ${_TEST_EXTRA_ARGS})
set(properties ${_TEST_PROPERTIES})
set(reporter ${_TEST_REPORTER})
set(output_dir ${_TEST_OUTPUT_DIR})
set(output_prefix ${_TEST_OUTPUT_PREFIX})
set(output_suffix ${_TEST_OUTPUT_SUFFIX})
set(dl_paths ${_TEST_DL_PATHS})
set(dl_framework_paths ${_TEST_DL_FRAMEWORK_PATHS})
set(environment_modifications "")
set(script)
set(suite)
set(tests)
if(WIN32)
set(dl_paths_variable_name PATH)
elseif(APPLE)
set(dl_paths_variable_name DYLD_LIBRARY_PATH)
else()
set(dl_paths_variable_name LD_LIBRARY_PATH)
endif()
# Run test executable to get list of available tests
if(NOT EXISTS "${_TEST_EXECUTABLE}")
message(FATAL_ERROR
"Specified test executable '${_TEST_EXECUTABLE}' does not exist"
)
endif()
if(dl_paths)
cmake_path(CONVERT "$ENV{${dl_paths_variable_name}}" TO_NATIVE_PATH_LIST env_dl_paths)
list(PREPEND env_dl_paths "${dl_paths}")
cmake_path(CONVERT "${env_dl_paths}" TO_NATIVE_PATH_LIST paths)
set(ENV{${dl_paths_variable_name}} "${paths}")
endif()
if(APPLE AND dl_framework_paths)
cmake_path(CONVERT "$ENV{DYLD_FRAMEWORK_PATH}" TO_NATIVE_PATH_LIST env_dl_framework_paths)
list(PREPEND env_dl_framework_paths "${dl_framework_paths}")
cmake_path(CONVERT "${env_dl_framework_paths}" TO_NATIVE_PATH_LIST paths)
set(ENV{DYLD_FRAMEWORK_PATH} "${paths}")
endif()
execute_process(
COMMAND ${_TEST_EXECUTOR} "${_TEST_EXECUTABLE}" ${spec} --list-tests --verbosity quiet
OUTPUT_VARIABLE output
RESULT_VARIABLE result
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
)
if(NOT ${result} EQUAL 0)
message(FATAL_ERROR
"Error running test executable '${_TEST_EXECUTABLE}':\n"
" Result: ${result}\n"
" Output: ${output}\n"
)
endif()
# Make sure to escape ; (semicolons) in test names first, because
# that'd break the foreach loop for "Parse output" later and create
# wrongly splitted and thus failing test cases (false positives)
string(REPLACE ";" "\;" output "${output}")
string(REPLACE "\n" ";" output "${output}")
# Prepare reporter
if(reporter)
set(reporter_arg "--reporter ${reporter}")
# Run test executable to check whether reporter is available
# note that the use of --list-reporters is not the important part,
# we only want to check whether the execution succeeds with ${reporter_arg}
execute_process(
COMMAND ${_TEST_EXECUTOR} "${_TEST_EXECUTABLE}" ${spec} ${reporter_arg} --list-reporters
OUTPUT_VARIABLE reporter_check_output
RESULT_VARIABLE reporter_check_result
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
)
if(${reporter_check_result} EQUAL 255)
message(FATAL_ERROR
"\"${reporter}\" is not a valid reporter!\n"
)
elseif(NOT ${reporter_check_result} EQUAL 0)
message(FATAL_ERROR
"Error running test executable '${_TEST_EXECUTABLE}':\n"
" Result: ${reporter_check_result}\n"
" Output: ${reporter_check_output}\n"
)
endif()
endif()
# Prepare output dir
if(output_dir AND NOT IS_ABSOLUTE ${output_dir})
set(output_dir "${_TEST_WORKING_DIR}/${output_dir}")
if(NOT EXISTS ${output_dir})
file(MAKE_DIRECTORY ${output_dir})
endif()
endif()
if(dl_paths)
foreach(path ${dl_paths})
cmake_path(NATIVE_PATH path native_path)
list(PREPEND environment_modifications "${dl_paths_variable_name}=path_list_prepend:${native_path}")
endforeach()
endif()
if(APPLE AND dl_framework_paths)
foreach(path ${dl_framework_paths})
cmake_path(NATIVE_PATH path native_path)
list(PREPEND environment_modifications "DYLD_FRAMEWORK_PATH=path_list_prepend:${native_path}")
endforeach()
endif()
# Parse output
foreach(line ${output})
set(test "${line}")
# Escape characters in test case names that would be parsed by Catch2
# Note that the \ escaping must happen FIRST! Do not change the order.
set(test_name "${test}")
foreach(char \\ , [ ])
string(REPLACE ${char} "\\${char}" test_name "${test_name}")
endforeach(char)
# ...add output dir
if(output_dir)
string(REGEX REPLACE "[^A-Za-z0-9_]" "_" test_name_clean "${test_name}")
set(output_dir_arg "--out ${output_dir}/${output_prefix}${test_name_clean}${output_suffix}")
endif()
# ...and add to script
add_command(add_test
"${prefix}${test}${suffix}"
${_TEST_EXECUTOR}
"${_TEST_EXECUTABLE}"
"${test_name}"
${extra_args}
"${reporter_arg}"
"${output_dir_arg}"
)
add_command(set_tests_properties
"${prefix}${test}${suffix}"
PROPERTIES
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
${properties}
)
if(environment_modifications)
add_command(set_tests_properties
"${prefix}${test}${suffix}"
PROPERTIES
ENVIRONMENT_MODIFICATION "${environment_modifications}")
endif()
list(APPEND tests "${prefix}${test}${suffix}")
endforeach()
# Create a list of all discovered tests, which users may use to e.g. set
# properties on the tests
add_command(set ${_TEST_LIST} ${tests})
# Write CTest script
file(WRITE "${_CTEST_FILE}" "${script}")
endfunction()
if(CMAKE_SCRIPT_MODE_FILE)
catch_discover_tests_impl(
TEST_EXECUTABLE ${TEST_EXECUTABLE}
TEST_EXECUTOR ${TEST_EXECUTOR}
TEST_WORKING_DIR ${TEST_WORKING_DIR}
TEST_SPEC ${TEST_SPEC}
TEST_EXTRA_ARGS ${TEST_EXTRA_ARGS}
TEST_PROPERTIES ${TEST_PROPERTIES}
TEST_PREFIX ${TEST_PREFIX}
TEST_SUFFIX ${TEST_SUFFIX}
TEST_LIST ${TEST_LIST}
TEST_REPORTER ${TEST_REPORTER}
TEST_OUTPUT_DIR ${TEST_OUTPUT_DIR}
TEST_OUTPUT_PREFIX ${TEST_OUTPUT_PREFIX}
TEST_OUTPUT_SUFFIX ${TEST_OUTPUT_SUFFIX}
TEST_DL_PATHS ${TEST_DL_PATHS}
TEST_DL_FRAMEWORK_PATHS ${TEST_DL_FRAMEWORK_PATHS}
CTEST_FILE ${CTEST_FILE}
)
endif()

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# Copyright Catch2 Authors
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE.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 "${ctest_include_file}"
)
set(shard_impl_script_file "${_CATCH_DISCOVER_SHARD_TESTS_IMPL_SCRIPT}")
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()
###############################################################################
set(_CATCH_DISCOVER_SHARD_TESTS_IMPL_SCRIPT
${CMAKE_CURRENT_LIST_DIR}/CatchShardTestsImpl.cmake
CACHE INTERNAL "Catch2 full path to CatchShardTestsImpl.cmake helper file"
)

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# Copyright Catch2 Authors
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE.txt or copy at
# https://www.boost.org/LICENSE_1_0.txt)
# SPDX-License-Identifier: BSL-1.0
# Indirection for CatchShardTests that allows us to delay the script
# file generation until build time.
# Expected args:
# * TEST_BINARY - full path to the test binary to run sharded
# * CTEST_FILE - full path to ctest script file to write to
# * TARGET_NAME - name of the target to shard (used for test names)
# * SHARD_COUNT - number of shards to split the binary into
# Optional args:
# * REPORTER_SPEC - reporter specs to be passed down to the binary
# * TEST_SPEC - test spec to pass down to the test binary
if(NOT EXISTS "${TEST_BINARY}")
message(FATAL_ERROR
"Specified test binary '${TEST_BINARY}' does not exist"
)
endif()
set(other_args "")
if (TEST_SPEC)
set(other_args "${other_args} ${TEST_SPEC}")
endif()
if (REPORTER_SPEC)
set(other_args "${other_args} --reporter ${REPORTER_SPEC}")
endif()
# foreach RANGE in cmake is inclusive of the end, so we have to adjust it
math(EXPR adjusted_shard_count "${SHARD_COUNT} - 1")
file(WRITE "${CTEST_FILE}"
"string(RANDOM LENGTH 8 ALPHABET \"0123456789abcdef\" rng_seed)\n"
"\n"
"foreach(shard_idx RANGE ${adjusted_shard_count})\n"
" add_test(${TARGET_NAME}-shard-" [[${shard_idx}]] "/${adjusted_shard_count}\n"
" ${TEST_BINARY}"
" --shard-index " [[${shard_idx}]]
" --shard-count ${SHARD_COUNT}"
" --rng-seed " [[0x${rng_seed}]]
" --order rand"
"${other_args}"
"\n"
" )\n"
"endforeach()\n"
)

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#==================================================================================================#
# supported macros #
# - TEST_CASE, #
# - TEMPLATE_TEST_CASE #
# - SCENARIO, #
# - TEST_CASE_METHOD, #
# - CATCH_TEST_CASE, #
# - CATCH_TEMPLATE_TEST_CASE #
# - CATCH_SCENARIO, #
# - CATCH_TEST_CASE_METHOD. #
# #
# Usage #
# 1. make sure this module is in the path or add this otherwise: #
# set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake.modules/") #
# 2. make sure that you've enabled testing option for the project by the call: #
# enable_testing() #
# 3. add the lines to the script for testing target (sample CMakeLists.txt): #
# project(testing_target) #
# set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake.modules/") #
# enable_testing() #
# #
# find_path(CATCH_INCLUDE_DIR "catch.hpp") #
# include_directories(${INCLUDE_DIRECTORIES} ${CATCH_INCLUDE_DIR}) #
# #
# file(GLOB SOURCE_FILES "*.cpp") #
# add_executable(${PROJECT_NAME} ${SOURCE_FILES}) #
# #
# include(ParseAndAddCatchTests) #
# ParseAndAddCatchTests(${PROJECT_NAME}) #
# #
# The following variables affect the behavior of the script: #
# #
# PARSE_CATCH_TESTS_VERBOSE (Default OFF) #
# -- enables debug messages #
# PARSE_CATCH_TESTS_NO_HIDDEN_TESTS (Default OFF) #
# -- excludes tests marked with [!hide], [.] or [.foo] tags #
# PARSE_CATCH_TESTS_ADD_FIXTURE_IN_TEST_NAME (Default ON) #
# -- adds fixture class name to the test name #
# PARSE_CATCH_TESTS_ADD_TARGET_IN_TEST_NAME (Default ON) #
# -- adds cmake target name to the test name #
# PARSE_CATCH_TESTS_ADD_TO_CONFIGURE_DEPENDS (Default OFF) #
# -- causes CMake to rerun when file with tests changes so that new tests will be discovered #
# #
# One can also set (locally) the optional variable OptionalCatchTestLauncher to precise the way #
# a test should be run. For instance to use test MPI, one can write #
# set(OptionalCatchTestLauncher ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} ${NUMPROC}) #
# just before calling this ParseAndAddCatchTests function #
# #
# The AdditionalCatchParameters optional variable can be used to pass extra argument to the test #
# command. For example, to include successful tests in the output, one can write #
# set(AdditionalCatchParameters --success) #
# #
# After the script, the ParseAndAddCatchTests_TESTS property for the target, and for each source #
# file in the target is set, and contains the list of the tests extracted from that target, or #
# from that file. This is useful, for example to add further labels or properties to the tests. #
# #
#==================================================================================================#
if (CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.8)
message(FATAL_ERROR "ParseAndAddCatchTests requires CMake 2.8.8 or newer")
endif()
option(PARSE_CATCH_TESTS_VERBOSE "Print Catch to CTest parser debug messages" OFF)
option(PARSE_CATCH_TESTS_NO_HIDDEN_TESTS "Exclude tests with [!hide], [.] or [.foo] tags" OFF)
option(PARSE_CATCH_TESTS_ADD_FIXTURE_IN_TEST_NAME "Add fixture class name to the test name" ON)
option(PARSE_CATCH_TESTS_ADD_TARGET_IN_TEST_NAME "Add target name to the test name" ON)
option(PARSE_CATCH_TESTS_ADD_TO_CONFIGURE_DEPENDS "Add test file to CMAKE_CONFIGURE_DEPENDS property" OFF)
function(ParseAndAddCatchTests_PrintDebugMessage)
if(PARSE_CATCH_TESTS_VERBOSE)
message(STATUS "ParseAndAddCatchTests: ${ARGV}")
endif()
endfunction()
# This removes the contents between
# - block comments (i.e. /* ... */)
# - full line comments (i.e. // ... )
# contents have been read into '${CppCode}'.
# !keep partial line comments
function(ParseAndAddCatchTests_RemoveComments CppCode)
string(ASCII 2 CMakeBeginBlockComment)
string(ASCII 3 CMakeEndBlockComment)
string(REGEX REPLACE "/\\*" "${CMakeBeginBlockComment}" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "\\*/" "${CMakeEndBlockComment}" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "${CMakeBeginBlockComment}[^${CMakeEndBlockComment}]*${CMakeEndBlockComment}" "" ${CppCode} "${${CppCode}}")
string(REGEX REPLACE "\n[ \t]*//+[^\n]+" "\n" ${CppCode} "${${CppCode}}")
set(${CppCode} "${${CppCode}}" PARENT_SCOPE)
endfunction()
# Worker function
function(ParseAndAddCatchTests_ParseFile SourceFile TestTarget)
# If SourceFile is an object library, do not scan it (as it is not a file). Exit without giving a warning about a missing file.
if(SourceFile MATCHES "\\\$<TARGET_OBJECTS:.+>")
ParseAndAddCatchTests_PrintDebugMessage("Detected OBJECT library: ${SourceFile} this will not be scanned for tests.")
return()
endif()
# According to CMake docs EXISTS behavior is well-defined only for full paths.
get_filename_component(SourceFile ${SourceFile} ABSOLUTE)
if(NOT EXISTS ${SourceFile})
message(WARNING "Cannot find source file: ${SourceFile}")
return()
endif()
ParseAndAddCatchTests_PrintDebugMessage("parsing ${SourceFile}")
file(STRINGS ${SourceFile} Contents NEWLINE_CONSUME)
# Remove block and fullline comments
ParseAndAddCatchTests_RemoveComments(Contents)
# Find definition of test names
# https://regex101.com/r/JygOND/1
string(REGEX MATCHALL "[ \t]*(CATCH_)?(TEMPLATE_)?(TEST_CASE_METHOD|SCENARIO|TEST_CASE)[ \t]*\\([ \t\n]*\"[^\"]*\"[ \t\n]*(,[ \t\n]*\"[^\"]*\")?(,[ \t\n]*[^\,\)]*)*\\)[ \t\n]*\{+[ \t]*(//[^\n]*[Tt][Ii][Mm][Ee][Oo][Uu][Tt][ \t]*[0-9]+)*" Tests "${Contents}")
if(PARSE_CATCH_TESTS_ADD_TO_CONFIGURE_DEPENDS AND Tests)
ParseAndAddCatchTests_PrintDebugMessage("Adding ${SourceFile} to CMAKE_CONFIGURE_DEPENDS property")
set_property(
DIRECTORY
APPEND
PROPERTY CMAKE_CONFIGURE_DEPENDS ${SourceFile}
)
endif()
# check CMP0110 policy for new add_test() behavior
if(POLICY CMP0110)
cmake_policy(GET CMP0110 _cmp0110_value) # new add_test() behavior
else()
# just to be thorough explicitly set the variable
set(_cmp0110_value)
endif()
foreach(TestName ${Tests})
# Strip newlines
string(REGEX REPLACE "\\\\\n|\n" "" TestName "${TestName}")
# Get test type and fixture if applicable
string(REGEX MATCH "(CATCH_)?(TEMPLATE_)?(TEST_CASE_METHOD|SCENARIO|TEST_CASE)[ \t]*\\([^,^\"]*" TestTypeAndFixture "${TestName}")
string(REGEX MATCH "(CATCH_)?(TEMPLATE_)?(TEST_CASE_METHOD|SCENARIO|TEST_CASE)" TestType "${TestTypeAndFixture}")
string(REGEX REPLACE "${TestType}\\([ \t]*" "" TestFixture "${TestTypeAndFixture}")
# Get string parts of test definition
string(REGEX MATCHALL "\"+([^\\^\"]|\\\\\")+\"+" TestStrings "${TestName}")
# Strip wrapping quotation marks
string(REGEX REPLACE "^\"(.*)\"$" "\\1" TestStrings "${TestStrings}")
string(REPLACE "\";\"" ";" TestStrings "${TestStrings}")
# Validate that a test name and tags have been provided
list(LENGTH TestStrings TestStringsLength)
if(TestStringsLength GREATER 2 OR TestStringsLength LESS 1)
message(FATAL_ERROR "You must provide a valid test name and tags for all tests in ${SourceFile}")
endif()
# Assign name and tags
list(GET TestStrings 0 Name)
if("${TestType}" STREQUAL "SCENARIO")
set(Name "Scenario: ${Name}")
endif()
if(PARSE_CATCH_TESTS_ADD_FIXTURE_IN_TEST_NAME AND "${TestType}" MATCHES "(CATCH_)?TEST_CASE_METHOD" AND TestFixture )
set(CTestName "${TestFixture}:${Name}")
else()
set(CTestName "${Name}")
endif()
if(PARSE_CATCH_TESTS_ADD_TARGET_IN_TEST_NAME)
set(CTestName "${TestTarget}:${CTestName}")
endif()
# add target to labels to enable running all tests added from this target
set(Labels ${TestTarget})
if(TestStringsLength EQUAL 2)
list(GET TestStrings 1 Tags)
string(TOLOWER "${Tags}" Tags)
# remove target from labels if the test is hidden
if("${Tags}" MATCHES ".*\\[!?(hide|\\.)\\].*")
list(REMOVE_ITEM Labels ${TestTarget})
endif()
string(REPLACE "]" ";" Tags "${Tags}")
string(REPLACE "[" "" Tags "${Tags}")
else()
# unset tags variable from previous loop
unset(Tags)
endif()
list(APPEND Labels ${Tags})
set(HiddenTagFound OFF)
foreach(label ${Labels})
string(REGEX MATCH "^!hide|^\\." result ${label})
if(result)
set(HiddenTagFound ON)
break()
endif()
endforeach(label)
if(PARSE_CATCH_TESTS_NO_HIDDEN_TESTS AND ${HiddenTagFound} AND ${CMAKE_VERSION} VERSION_LESS "3.9")
ParseAndAddCatchTests_PrintDebugMessage("Skipping test \"${CTestName}\" as it has [!hide], [.] or [.foo] label")
else()
ParseAndAddCatchTests_PrintDebugMessage("Adding test \"${CTestName}\"")
if(Labels)
ParseAndAddCatchTests_PrintDebugMessage("Setting labels to ${Labels}")
endif()
# Escape commas in the test spec
string(REPLACE "," "\\," Name ${Name})
# Work around CMake 3.18.0 change in `add_test()`, before the escaped quotes were necessary,
# only with CMake 3.18.0 the escaped double quotes confuse the call. This change is reverted in 3.18.1
# And properly introduced in 3.19 with the CMP0110 policy
if(_cmp0110_value STREQUAL "NEW" OR ${CMAKE_VERSION} VERSION_EQUAL "3.18")
ParseAndAddCatchTests_PrintDebugMessage("CMP0110 set to NEW, no need for add_test(\"\") workaround")
else()
ParseAndAddCatchTests_PrintDebugMessage("CMP0110 set to OLD adding \"\" for add_test() workaround")
set(CTestName "\"${CTestName}\"")
endif()
# Handle template test cases
if("${TestTypeAndFixture}" MATCHES ".*TEMPLATE_.*")
set(Name "${Name} - *")
endif()
# Add the test and set its properties
add_test(NAME "${CTestName}" COMMAND ${OptionalCatchTestLauncher} $<TARGET_FILE:${TestTarget}> ${Name} ${AdditionalCatchParameters})
# Old CMake versions do not document VERSION_GREATER_EQUAL, so we use VERSION_GREATER with 3.8 instead
if(PARSE_CATCH_TESTS_NO_HIDDEN_TESTS AND ${HiddenTagFound} AND ${CMAKE_VERSION} VERSION_GREATER "3.8")
ParseAndAddCatchTests_PrintDebugMessage("Setting DISABLED test property")
set_tests_properties("${CTestName}" PROPERTIES DISABLED ON)
else()
set_tests_properties("${CTestName}" PROPERTIES FAIL_REGULAR_EXPRESSION "No tests ran"
LABELS "${Labels}")
endif()
set_property(
TARGET ${TestTarget}
APPEND
PROPERTY ParseAndAddCatchTests_TESTS "${CTestName}")
set_property(
SOURCE ${SourceFile}
APPEND
PROPERTY ParseAndAddCatchTests_TESTS "${CTestName}")
endif()
endforeach()
endfunction()
# entry point
function(ParseAndAddCatchTests TestTarget)
message(DEPRECATION "ParseAndAddCatchTest: function deprecated because of possibility of missed test cases. Consider using 'catch_discover_tests' from 'Catch.cmake'")
ParseAndAddCatchTests_PrintDebugMessage("Started parsing ${TestTarget}")
get_target_property(SourceFiles ${TestTarget} SOURCES)
ParseAndAddCatchTests_PrintDebugMessage("Found the following sources: ${SourceFiles}")
foreach(SourceFile ${SourceFiles})
ParseAndAddCatchTests_ParseFile(${SourceFile} ${TestTarget})
endforeach()
ParseAndAddCatchTests_PrintDebugMessage("Finished parsing ${TestTarget}")
endfunction()

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#
# This file provides a way to skip stepping into Catch code when debugging with gdb.
#
# With the gdb "skip" command you can tell gdb to skip files or functions during debugging.
# see https://xaizek.github.io/2016-05-26/skipping-standard-library-in-gdb/ for an example
#
# Basically the following line tells gdb to skip all functions containing the
# regexp "Catch", which matches the complete Catch namespace.
# If you want to skip just some parts of the Catch code you can modify the
# regexp accordingly.
#
# If you want to permanently skip stepping into Catch code copy the following
# line into your ~/.gdbinit file
#
skip -rfu Catch

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#
# This file provides a way to skip stepping into Catch code when debugging with lldb.
#
# With the setting "target.process.thread.step-avoid-regexp" you can tell lldb
# to skip functions matching the regexp
#
# Basically the following line tells lldb to skip all functions containing the
# regexp "Catch", which matches the complete Catch namespace.
# If you want to skip just some parts of the Catch code you can modify the
# regexp accordingly.
#
# If you want to permanently skip stepping into Catch code copy the following
# line into your ~/.lldbinit file
#
settings set target.process.thread.step-avoid-regexp Catch