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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;ADD_TAGS_AS_LABELS"
${ARGN}
)
set(add_tags "${_ADD_TAGS_AS_LABELS}")
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}" ${spec} --list-tests --reporter json
OUTPUT_VARIABLE listing_output
RESULT_VARIABLE result
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
)
if(NOT ${result} EQUAL 0)
message(FATAL_ERROR
"Error listing tests from executable '${_TEST_EXECUTABLE}':\n"
" Result: ${result}\n"
" Output: ${listing_output}\n"
)
endif()
# 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 ${reporter_check_result} EQUAL 0)
message(FATAL_ERROR
"Error checking for reporter in test executable '${_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 JSON output for list of tests/class names/tags
string(JSON version GET "${listing_output}" "version")
if (NOT version STREQUAL "1")
message(FATAL_ERROR "Unsupported catch output version: '${version}'")
endif()
# Speed-up reparsing by cutting away unneeded parts of JSON.
string(JSON test_listing GET "${listing_output}" "listings" "tests")
string(JSON num_tests LENGTH "${test_listing}")
# Exit early if no tests are detected
if(num_tests STREQUAL "0")
return()
endif()
# CMake's foreach-RANGE is inclusive, so we have to subtract 1
math(EXPR num_tests "${num_tests} - 1")
foreach(idx RANGE ${num_tests})
string(JSON single_test GET ${test_listing} ${idx})
string(JSON test_tags GET "${single_test}" "tags")
string(JSON plain_name GET "${single_test}" "name")
# Escape characters in test case names that would be parsed by Catch2
# Note that the \ escaping must happen FIRST! Do not change the order.
set(escaped_name "${plain_name}")
foreach(char \\ , [ ] ;)
string(REPLACE ${char} "\\${char}" escaped_name "${escaped_name}")
endforeach(char)
# ...add output dir
if(output_dir)
string(REGEX REPLACE "[^A-Za-z0-9_]" "_" escaped_name_clean "${escaped_name}")
set(output_dir_arg "--out ${output_dir}/${output_prefix}${escaped_name_clean}${output_suffix}")
endif()
# ...and add to script
add_command(add_test
"${prefix}${plain_name}${suffix}"
${_TEST_EXECUTOR}
"${_TEST_EXECUTABLE}"
"${escaped_name}"
${extra_args}
"${reporter_arg}"
"${output_dir_arg}"
)
add_command(set_tests_properties
"${prefix}${plain_name}${suffix}"
PROPERTIES
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
${properties}
)
if (add_tags)
string(JSON num_tags LENGTH "${test_tags}")
math(EXPR num_tags "${num_tags} - 1")
set(tag_list "")
if (num_tags GREATER_EQUAL "0")
foreach(tag_idx RANGE ${num_tags})
string(JSON a_tag GET "${test_tags}" "${tag_idx}")
# Catch2's tags can contain semicolons, which are list element separators
# in CMake, so we have to escape them. Ideally we could use the [=[...]=]
# syntax for this, but CTest currently keeps the square quotes in the label
# name. So we add 2 backslashes to escape it instead.
# **IMPORTANT**: The number of backslashes depends on how many layers
# of CMake the tag goes. If this script is changed, the
# number of backslashes to escape may change as well.
string(REPLACE ";" "\\;" a_tag "${a_tag}")
list(APPEND tag_list "${a_tag}")
endforeach()
add_command(set_tests_properties
"${prefix}${plain_name}${suffix}"
PROPERTIES
LABELS "${tag_list}"
)
endif()
endif(add_tags)
if(environment_modifications)
add_command(set_tests_properties
"${prefix}${plain_name}${suffix}"
PROPERTIES
ENVIRONMENT_MODIFICATION "${environment_modifications}")
endif()
list(APPEND tests "${prefix}${plain_name}${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}
ADD_TAGS_AS_LABELS ${ADD_TAGS_AS_LABELS}
)
endif()
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