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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.
cmake_minimum_required(VERSION ${CMAKE_VERSION})
# Overwrite possibly existing ${_CTEST_FILE} with empty file
set(flush_tests_MODE WRITE)
# Flushes script to ${_CTEST_FILE}
macro(flush_script)
file(${flush_tests_MODE} "${_CTEST_FILE}" "${script}")
set(flush_tests_MODE APPEND PARENT_SCOPE)
set(script "")
endmacro()
# Flushes tests_buffer to tests
macro(flush_tests_buffer)
list(APPEND tests "${tests_buffer}")
set(tests_buffer "")
endmacro()
function(add_command NAME TEST_NAME)
set(args "")
foreach(arg ${ARGN})
if(arg MATCHES "[^-./:a-zA-Z0-9_]")
string(APPEND args " [==[${arg}]==]")
else()
string(APPEND args " ${arg}")
endif()
endforeach()
string(APPEND script "${NAME}(${TEST_NAME} ${args})\n")
string(LENGTH "${script}" script_len)
if(${script_len} GREATER "50000")
flush_script()
endif()
set(script "${script}" PARENT_SCOPE)
endfunction()
function(generate_testname_guards OUTPUT OPEN_GUARD_VAR CLOSE_GUARD_VAR)
set(open_guard "[=[")
set(close_guard "]=]")
set(counter 1)
while("${OUTPUT}" MATCHES "${close_guard}")
math(EXPR counter "${counter} + 1")
string(REPEAT "=" ${counter} equals)
set(open_guard "[${equals}[")
set(close_guard "]${equals}]")
endwhile()
set(${OPEN_GUARD_VAR} "${open_guard}" PARENT_SCOPE)
set(${CLOSE_GUARD_VAR} "${close_guard}" PARENT_SCOPE)
endfunction()
function(escape_square_brackets OUTPUT BRACKET PLACEHOLDER PLACEHOLDER_VAR OUTPUT_VAR)
if("${OUTPUT}" MATCHES "\\${BRACKET}")
set(placeholder "${PLACEHOLDER}")
while("${OUTPUT}" MATCHES "${placeholder}")
set(placeholder "${placeholder}_")
endwhile()
string(REPLACE "${BRACKET}" "${placeholder}" OUTPUT "${OUTPUT}")
set(${PLACEHOLDER_VAR} "${placeholder}" PARENT_SCOPE)
set(${OUTPUT_VAR} "${OUTPUT}" PARENT_SCOPE)
endif()
endfunction()
function(gtest_discover_tests_impl)
cmake_parse_arguments(
""
""
"NO_PRETTY_TYPES;NO_PRETTY_VALUES;TEST_EXECUTABLE;TEST_WORKING_DIR;TEST_PREFIX;TEST_SUFFIX;TEST_LIST;CTEST_FILE;TEST_DISCOVERY_TIMEOUT;TEST_XML_OUTPUT_DIR;TEST_FILTER"
"TEST_EXTRA_ARGS;TEST_PROPERTIES;TEST_EXECUTOR"
${ARGN}
)
set(prefix "${_TEST_PREFIX}")
set(suffix "${_TEST_SUFFIX}")
set(extra_args ${_TEST_EXTRA_ARGS})
set(properties ${_TEST_PROPERTIES})
set(script)
set(suite)
set(tests)
set(tests_buffer)
if(_TEST_FILTER)
set(filter "--gtest_filter=${_TEST_FILTER}")
else()
set(filter)
endif()
# Run test executable to get list of available tests
if(NOT EXISTS "${_TEST_EXECUTABLE}")
message(FATAL_ERROR
"Specified test executable does not exist.\n"
" Path: '${_TEST_EXECUTABLE}'"
)
endif()
execute_process(
COMMAND ${_TEST_EXECUTOR} "${_TEST_EXECUTABLE}" --gtest_list_tests ${filter}
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
TIMEOUT ${_TEST_DISCOVERY_TIMEOUT}
OUTPUT_VARIABLE output
RESULT_VARIABLE result
)
if(NOT ${result} EQUAL 0)
string(REPLACE "\n" "\n " output "${output}")
if(_TEST_EXECUTOR)
set(path "${_TEST_EXECUTOR} ${_TEST_EXECUTABLE}")
else()
set(path "${_TEST_EXECUTABLE}")
endif()
message(FATAL_ERROR
"Error running test executable.\n"
" Path: '${path}'\n"
" Result: ${result}\n"
" Output:\n"
" ${output}\n"
)
endif()
generate_testname_guards("${output}" open_guard close_guard)
escape_square_brackets("${output}" "[" "__osb" open_sb output)
escape_square_brackets("${output}" "]" "__csb" close_sb output)
# Preserve semicolon in test-parameters
string(REPLACE [[;]] [[\;]] output "${output}")
string(REPLACE "\n" ";" output "${output}")
# Parse output
foreach(line ${output})
# Skip header
if(NOT line MATCHES "gtest_main\\.cc")
# Do we have a module name or a test name?
if(NOT line MATCHES "^ ")
# Module; remove trailing '.' to get just the name...
string(REGEX REPLACE "\\.( *#.*)?$" "" suite "${line}")
if(line MATCHES "#")
string(REGEX REPLACE "/.*" "" pretty_suite "${line}")
if(NOT _NO_PRETTY_TYPES)
string(REGEX REPLACE ".*/[0-9]+[ .#]+TypeParam = (.*)" "\\1" type_parameter "${line}")
else()
string(REGEX REPLACE ".*/([0-9]+)[ .#]+TypeParam = .*" "\\1" type_parameter "${line}")
endif()
set(test_name_template "@prefix@@pretty_suite@.@pretty_test@<@type_parameter@>@suffix@")
else()
set(pretty_suite "${suite}")
set(test_name_template "@prefix@@pretty_suite@.@pretty_test@@suffix@")
endif()
string(REGEX REPLACE "^DISABLED_" "" pretty_suite "${pretty_suite}")
else()
string(STRIP "${line}" test)
if(test MATCHES "#" AND NOT _NO_PRETTY_VALUES)
string(REGEX REPLACE "/[0-9]+[ #]+GetParam\\(\\) = " "/" pretty_test "${test}")
else()
string(REGEX REPLACE " +#.*" "" pretty_test "${test}")
endif()
string(REGEX REPLACE "^DISABLED_" "" pretty_test "${pretty_test}")
string(REGEX REPLACE " +#.*" "" test "${test}")
if(NOT "${_TEST_XML_OUTPUT_DIR}" STREQUAL "")
set(TEST_XML_OUTPUT_PARAM "--gtest_output=xml:${_TEST_XML_OUTPUT_DIR}/${prefix}${suite}.${test}${suffix}.xml")
else()
unset(TEST_XML_OUTPUT_PARAM)
endif()
string(CONFIGURE "${test_name_template}" testname)
# unescape []
if(open_sb)
string(REPLACE "${open_sb}" "[" testname "${testname}")
endif()
if(close_sb)
string(REPLACE "${close_sb}" "]" testname "${testname}")
endif()
set(guarded_testname "${open_guard}${testname}${close_guard}")
# add to script
add_command(add_test
"${guarded_testname}"
${_TEST_EXECUTOR}
"${_TEST_EXECUTABLE}"
"--gtest_filter=${suite}.${test}"
"--gtest_also_run_disabled_tests"
${TEST_XML_OUTPUT_PARAM}
${extra_args}
)
if(suite MATCHES "^DISABLED_" OR test MATCHES "^DISABLED_")
add_command(set_tests_properties
"${guarded_testname}"
PROPERTIES DISABLED TRUE
)
endif()
add_command(set_tests_properties
"${guarded_testname}"
PROPERTIES
WORKING_DIRECTORY "${_TEST_WORKING_DIR}"
SKIP_REGULAR_EXPRESSION "\\[ SKIPPED \\]"
${properties}
)
# possibly unbalanced square brackets render lists invalid so skip such tests in ${_TEST_LIST}
if(NOT "${testname}" MATCHES [=[(\[|\])]=])
# escape ;
string(REPLACE [[;]] [[\\;]] testname "${testname}")
list(APPEND tests_buffer "${testname}")
list(LENGTH tests_buffer tests_buffer_length)
if(${tests_buffer_length} GREATER "250")
flush_tests_buffer()
endif()
endif()
endif()
endif()
endforeach()
# Create a list of all discovered tests, which users may use to e.g. set
# properties on the tests
flush_tests_buffer()
add_command(set "" ${_TEST_LIST} "${tests}")
# Write CTest script
flush_script()
endfunction()
if(CMAKE_SCRIPT_MODE_FILE)
gtest_discover_tests_impl(
NO_PRETTY_TYPES ${NO_PRETTY_TYPES}
NO_PRETTY_VALUES ${NO_PRETTY_VALUES}
TEST_EXECUTABLE ${TEST_EXECUTABLE}
TEST_EXECUTOR ${TEST_EXECUTOR}
TEST_WORKING_DIR ${TEST_WORKING_DIR}
TEST_PREFIX ${TEST_PREFIX}
TEST_SUFFIX ${TEST_SUFFIX}
TEST_FILTER ${TEST_FILTER}
TEST_LIST ${TEST_LIST}
CTEST_FILE ${CTEST_FILE}
TEST_DISCOVERY_TIMEOUT ${TEST_DISCOVERY_TIMEOUT}
TEST_XML_OUTPUT_DIR ${TEST_XML_OUTPUT_DIR}
TEST_EXTRA_ARGS ${TEST_EXTRA_ARGS}
TEST_PROPERTIES ${TEST_PROPERTIES}
)
endif()
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