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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:
# FindGTest
# ---------
#
# Locate the Google C++ Testing Framework.
#
# Imported targets
# ^^^^^^^^^^^^^^^^
#
# This module defines the following :prop_tgt:`IMPORTED` targets:
#
# ``GTest::GTest``
# The Google Test ``gtest`` library, if found; adds Thread::Thread
# automatically
# ``GTest::Main``
# The Google Test ``gtest_main`` library, if found
#
#
# Result variables
# ^^^^^^^^^^^^^^^^
#
# This module will set the following variables in your project:
#
# ``GTEST_FOUND``
# Found the Google Testing framework
# ``GTEST_INCLUDE_DIRS``
# the directory containing the Google Test headers
#
# The library variables below are set as normal variables. These
# contain debug/optimized keywords when a debugging library is found.
#
# ``GTEST_LIBRARIES``
# The Google Test ``gtest`` library; note it also requires linking
# with an appropriate thread library
# ``GTEST_MAIN_LIBRARIES``
# The Google Test ``gtest_main`` library
# ``GTEST_BOTH_LIBRARIES``
# Both ``gtest`` and ``gtest_main``
#
# Cache variables
# ^^^^^^^^^^^^^^^
#
# The following cache variables may also be set:
#
# ``GTEST_ROOT``
# The root directory of the Google Test installation (may also be
# set as an environment variable)
# ``GTEST_MSVC_SEARCH``
# If compiling with MSVC, this variable can be set to ``MD`` or
# ``MT`` (the default) to enable searching a GTest build tree
#
#
# Example usage
# ^^^^^^^^^^^^^
#
# ::
#
# enable_testing()
# find_package(GTest REQUIRED)
#
# add_executable(foo foo.cc)
# target_link_libraries(foo GTest::GTest GTest::Main)
#
# add_test(AllTestsInFoo foo)
#
#
# Deeper integration with CTest
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#
# If you would like each Google test to show up in CTest as a test you
# may use the following macro::
#
# GTEST_ADD_TESTS(executable extra_args files...)
#
# ``executable``
# the path to the test executable
# ``extra_args``
# a list of extra arguments to be passed to executable enclosed in
# quotes (or ``""`` for none)
# ``files...``
# a list of source files to search for tests and test fixtures. Or
# ``AUTO`` to find them from executable target
#
# However, note that this macro will slow down your tests by running
# an executable for each test and test fixture.
#
# Example usage::
#
# set(FooTestArgs --foo 1 --bar 2)
# add_executable(FooTest FooUnitTest.cc)
# GTEST_ADD_TESTS(FooTest "${FooTestArgs}" AUTO)
#
# Thanks to Daniel Blezek <blezek@gmail.com> for the GTEST_ADD_TESTS code
function(GTEST_ADD_TESTS executable extra_args)
if(NOT ARGN)
message(FATAL_ERROR "Missing ARGN: Read the documentation for GTEST_ADD_TESTS")
endif()
if(ARGN STREQUAL "AUTO")
# obtain sources used for building that executable
get_property(ARGN TARGET ${executable} PROPERTY SOURCES)
endif()
set(gtest_case_name_regex ".*\\( *([A-Za-z_0-9]+) *, *([A-Za-z_0-9]+) *\\).*")
set(gtest_test_type_regex "(TYPED_TEST|TEST_?[FP]?)")
foreach(source ${ARGN})
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${source})
file(READ "${source}" contents)
string(REGEX MATCHALL "${gtest_test_type_regex} *\\(([A-Za-z_0-9 ,]+)\\)" found_tests ${contents})
foreach(hit ${found_tests})
string(REGEX MATCH "${gtest_test_type_regex}" test_type ${hit})
# Parameterized tests have a different signature for the filter
if("x${test_type}" STREQUAL "xTEST_P")
string(REGEX REPLACE ${gtest_case_name_regex} "*/\\1.\\2/*" test_name ${hit})
elseif("x${test_type}" STREQUAL "xTEST_F" OR "x${test_type}" STREQUAL "xTEST")
string(REGEX REPLACE ${gtest_case_name_regex} "\\1.\\2" test_name ${hit})
elseif("x${test_type}" STREQUAL "xTYPED_TEST")
string(REGEX REPLACE ${gtest_case_name_regex} "\\1/*.\\2" test_name ${hit})
else()
message(WARNING "Could not parse GTest ${hit} for adding to CTest.")
continue()
endif()
add_test(NAME ${test_name} COMMAND ${executable} --gtest_filter=${test_name} ${extra_args})
endforeach()
endforeach()
endfunction()
function(_gtest_append_debugs _endvar _library)
if(${_library} AND ${_library}_DEBUG)
set(_output optimized ${${_library}} debug ${${_library}_DEBUG})
else()
set(_output ${${_library}})
endif()
set(${_endvar} ${_output} PARENT_SCOPE)
endfunction()
function(_gtest_find_library _name)
find_library(${_name}
NAMES ${ARGN}
HINTS
ENV GTEST_ROOT
${GTEST_ROOT}
PATH_SUFFIXES ${_gtest_libpath_suffixes}
)
mark_as_advanced(${_name})
endfunction()
#
if(NOT DEFINED GTEST_MSVC_SEARCH)
set(GTEST_MSVC_SEARCH MD)
endif()
set(_gtest_libpath_suffixes lib)
if(MSVC)
if(GTEST_MSVC_SEARCH STREQUAL "MD")
list(APPEND _gtest_libpath_suffixes
msvc/gtest-md/Debug
msvc/gtest-md/Release)
elseif(GTEST_MSVC_SEARCH STREQUAL "MT")
list(APPEND _gtest_libpath_suffixes
msvc/gtest/Debug
msvc/gtest/Release)
endif()
endif()
find_path(GTEST_INCLUDE_DIR gtest/gtest.h
HINTS
$ENV{GTEST_ROOT}/include
${GTEST_ROOT}/include
)
mark_as_advanced(GTEST_INCLUDE_DIR)
if(MSVC AND GTEST_MSVC_SEARCH STREQUAL "MD")
# The provided /MD project files for Google Test add -md suffixes to the
# library names.
_gtest_find_library(GTEST_LIBRARY gtest-md gtest)
_gtest_find_library(GTEST_LIBRARY_DEBUG gtest-mdd gtestd)
_gtest_find_library(GTEST_MAIN_LIBRARY gtest_main-md gtest_main)
_gtest_find_library(GTEST_MAIN_LIBRARY_DEBUG gtest_main-mdd gtest_maind)
else()
_gtest_find_library(GTEST_LIBRARY gtest)
_gtest_find_library(GTEST_LIBRARY_DEBUG gtestd)
_gtest_find_library(GTEST_MAIN_LIBRARY gtest_main)
_gtest_find_library(GTEST_MAIN_LIBRARY_DEBUG gtest_maind)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTest DEFAULT_MSG GTEST_LIBRARY GTEST_INCLUDE_DIR GTEST_MAIN_LIBRARY)
if(GTEST_FOUND)
set(GTEST_INCLUDE_DIRS ${GTEST_INCLUDE_DIR})
_gtest_append_debugs(GTEST_LIBRARIES GTEST_LIBRARY)
_gtest_append_debugs(GTEST_MAIN_LIBRARIES GTEST_MAIN_LIBRARY)
set(GTEST_BOTH_LIBRARIES ${GTEST_LIBRARIES} ${GTEST_MAIN_LIBRARIES})
include(CMakeFindDependencyMacro)
find_dependency(Threads)
if(NOT TARGET GTest::GTest)
add_library(GTest::GTest UNKNOWN IMPORTED)
set_target_properties(GTest::GTest PROPERTIES
INTERFACE_LINK_LIBRARIES "Threads::Threads")
if(GTEST_INCLUDE_DIRS)
set_target_properties(GTest::GTest PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIRS}")
endif()
if(EXISTS "${GTEST_LIBRARY}")
set_target_properties(GTest::GTest PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${GTEST_LIBRARY}")
endif()
if(EXISTS "${GTEST_LIBRARY_RELEASE}")
set_property(TARGET GTest::GTest APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(GTest::GTest PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
IMPORTED_LOCATION_RELEASE "${GTEST_LIBRARY_RELEASE}")
endif()
if(EXISTS "${GTEST_LIBRARY_DEBUG}")
set_property(TARGET GTest::GTest APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(GTest::GTest PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
IMPORTED_LOCATION_DEBUG "${GTEST_LIBRARY_DEBUG}")
endif()
endif()
if(NOT TARGET GTest::Main)
add_library(GTest::Main UNKNOWN IMPORTED)
set_target_properties(GTest::Main PROPERTIES
INTERFACE_LINK_LIBRARIES "GTest::GTest")
if(EXISTS "${GTEST_MAIN_LIBRARY}")
set_target_properties(GTest::Main PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${GTEST_MAIN_LIBRARY}")
endif()
if(EXISTS "${GTEST_MAIN_LIBRARY_RELEASE}")
set_property(TARGET GTest::Main APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(GTest::Main PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
IMPORTED_LOCATION_RELEASE "${GTEST_MAIN_LIBRARY_RELEASE}")
endif()
if(EXISTS "${GTEST_MAIN_LIBRARY_DEBUG}")
set_property(TARGET GTest::Main APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(GTest::Main PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
IMPORTED_LOCATION_DEBUG "${GTEST_MAIN_LIBRARY_DEBUG}")
endif()
endif()
endif()
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