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9837ed9699
Extract the `gtest_add_tests` macro from `FindGTest` into a separate module. GTest or GoogleTest can be used by a project in a several different ways, including installed libraries in the system, from an ExternalProject, or adding the GTest source directory as a sub directory of the project. As not all of these uses are supported by the FindGTest module the useful `gtest_add_tests` macro is separated to easily enable reuse. Issue: #14151
74 lines
2.7 KiB
CMake
74 lines
2.7 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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GoogleTest
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----------
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This module defines functions to help use the Google Test infrastructure.
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.. command:: gtest_add_tests
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Automatically add tests with CTest by scanning source code for Google test
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macros.
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::
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gtest_add_tests(<exe> <args> <files>...)
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``<exe>``
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The path to the test executable.
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``<args>``
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A ;-list of extra arguments to be passed to executable. The entire
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list must be passed as a single argument. Enclose it in quotes,
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or pass ``""`` for no arguments.
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``<files>...``
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A list of source files to search for tests and test fixtures.
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Alternatively, use ``AUTO`` to specify that ``<exe>`` is the name
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of a CMake executable target whose sources should be scanned.
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Example
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^^^^^^^
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.. code-block:: cmake
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include(GoogleTest)
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set(FooTestArgs --foo 1 --bar 2)
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add_executable(FooTest FooUnitTest.cc)
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gtest_add_tests(FooTest "${FooTestArgs}" AUTO)
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#]=======================================================================]
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function(gtest_add_tests executable extra_args)
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if(NOT ARGN)
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message(FATAL_ERROR "Missing ARGN: Read the documentation for GTEST_ADD_TESTS")
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endif()
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if(ARGN STREQUAL "AUTO")
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# obtain sources used for building that executable
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get_property(ARGN TARGET ${executable} PROPERTY SOURCES)
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endif()
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set(gtest_case_name_regex ".*\\( *([A-Za-z_0-9]+) *, *([A-Za-z_0-9]+) *\\).*")
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set(gtest_test_type_regex "(TYPED_TEST|TEST_?[FP]?)")
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foreach(source ${ARGN})
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set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${source})
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file(READ "${source}" contents)
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string(REGEX MATCHALL "${gtest_test_type_regex} *\\(([A-Za-z_0-9 ,]+)\\)" found_tests ${contents})
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foreach(hit ${found_tests})
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string(REGEX MATCH "${gtest_test_type_regex}" test_type ${hit})
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# Parameterized tests have a different signature for the filter
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if("x${test_type}" STREQUAL "xTEST_P")
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string(REGEX REPLACE ${gtest_case_name_regex} "*/\\1.\\2/*" test_name ${hit})
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elseif("x${test_type}" STREQUAL "xTEST_F" OR "x${test_type}" STREQUAL "xTEST")
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string(REGEX REPLACE ${gtest_case_name_regex} "\\1.\\2" test_name ${hit})
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elseif("x${test_type}" STREQUAL "xTYPED_TEST")
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string(REGEX REPLACE ${gtest_case_name_regex} "\\1/*.\\2" test_name ${hit})
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else()
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message(WARNING "Could not parse GTest ${hit} for adding to CTest.")
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continue()
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endif()
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add_test(NAME ${test_name} COMMAND ${executable} --gtest_filter=${test_name} ${extra_args})
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endforeach()
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endforeach()
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endfunction()
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