Rubidium
1 year ago
committed by
Jonathan G Rennison
parent
5a28405ced
commit
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# 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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Catch
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-----
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This module defines a function to help use the Catch test framework.
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The :command:`catch_discover_tests` discovers tests by asking the compiled test
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executable to enumerate its tests. This does not require CMake to be re-run
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when tests change. However, it may not work in a cross-compiling environment,
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and setting test properties is less convenient.
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This command is intended to replace use of :command:`add_test` to register
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tests, and will create a separate CTest test for each Catch test case. Note
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that this is in some cases less efficient, as common set-up and tear-down logic
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cannot be shared by multiple test cases executing in the same instance.
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However, it provides more fine-grained pass/fail information to CTest, which is
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usually considered as more beneficial. By default, the CTest test name is the
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same as the Catch name; see also ``TEST_PREFIX`` and ``TEST_SUFFIX``.
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.. command:: catch_discover_tests
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Automatically add tests with CTest by querying the compiled test executable
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for available tests::
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catch_discover_tests(target
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[TEST_SPEC arg1...]
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[EXTRA_ARGS arg1...]
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[WORKING_DIRECTORY dir]
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[TEST_PREFIX prefix]
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[TEST_SUFFIX suffix]
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[PROPERTIES name1 value1...]
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[TEST_LIST var]
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[REPORTER reporter]
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[OUTPUT_DIR dir]
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[OUTPUT_PREFIX prefix}
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[OUTPUT_SUFFIX suffix]
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)
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``catch_discover_tests`` sets up a post-build command on the test executable
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that generates the list of tests by parsing the output from running the test
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with the ``--list-test-names-only`` argument. This ensures that the full
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list of tests is obtained. Since test discovery occurs at build time, it is
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not necessary to re-run CMake when the list of tests changes.
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However, it requires that :prop_tgt:`CROSSCOMPILING_EMULATOR` is properly set
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in order to function in a cross-compiling environment.
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Additionally, setting properties on tests is somewhat less convenient, since
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the tests are not available at CMake time. Additional test properties may be
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assigned to the set of tests as a whole using the ``PROPERTIES`` option. If
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more fine-grained test control is needed, custom content may be provided
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through an external CTest script using the :prop_dir:`TEST_INCLUDE_FILES`
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directory property. The set of discovered tests is made accessible to such a
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script via the ``<target>_TESTS`` variable.
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The options are:
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``target``
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Specifies the Catch executable, which must be a known CMake executable
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target. CMake will substitute the location of the built executable when
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running the test.
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``TEST_SPEC arg1...``
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Specifies test cases, wildcarded test cases, tags and tag expressions to
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pass to the Catch executable with the ``--list-test-names-only`` argument.
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``EXTRA_ARGS arg1...``
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Any extra arguments to pass on the command line to each test case.
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``WORKING_DIRECTORY dir``
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Specifies the directory in which to run the discovered test cases. If this
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option is not provided, the current binary directory is used.
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``TEST_PREFIX prefix``
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Specifies a ``prefix`` to be prepended to the name of each discovered test
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case. This can be useful when the same test executable is being used in
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multiple calls to ``catch_discover_tests()`` but with different
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``TEST_SPEC`` or ``EXTRA_ARGS``.
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``TEST_SUFFIX suffix``
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Similar to ``TEST_PREFIX`` except the ``suffix`` is appended to the name of
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every discovered test case. Both ``TEST_PREFIX`` and ``TEST_SUFFIX`` may
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be specified.
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``PROPERTIES name1 value1...``
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Specifies additional properties to be set on all tests discovered by this
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invocation of ``catch_discover_tests``.
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``TEST_LIST var``
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Make the list of tests available in the variable ``var``, rather than the
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default ``<target>_TESTS``. This can be useful when the same test
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executable is being used in multiple calls to ``catch_discover_tests()``.
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Note that this variable is only available in CTest.
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``REPORTER reporter``
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Use the specified reporter when running the test case. The reporter will
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be passed to the Catch executable as ``--reporter reporter``.
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``OUTPUT_DIR dir``
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If specified, the parameter is passed along as
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``--out dir/<test_name>`` to Catch executable. The actual file name is the
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same as the test name. This should be used instead of
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``EXTRA_ARGS --out foo`` to avoid race conditions writing the result output
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when using parallel test execution.
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``OUTPUT_PREFIX prefix``
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May be used in conjunction with ``OUTPUT_DIR``.
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If specified, ``prefix`` is added to each output file name, like so
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``--out dir/prefix<test_name>``.
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``OUTPUT_SUFFIX suffix``
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May be used in conjunction with ``OUTPUT_DIR``.
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If specified, ``suffix`` is added to each output file name, like so
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``--out dir/<test_name>suffix``. This can be used to add a file extension to
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the output e.g. ".xml".
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#]=======================================================================]
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#------------------------------------------------------------------------------
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function(catch_discover_tests TARGET)
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cmake_parse_arguments(
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""
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""
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"TEST_PREFIX;TEST_SUFFIX;WORKING_DIRECTORY;TEST_LIST;REPORTER;OUTPUT_DIR;OUTPUT_PREFIX;OUTPUT_SUFFIX"
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"TEST_SPEC;EXTRA_ARGS;PROPERTIES"
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${ARGN}
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)
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if(NOT _WORKING_DIRECTORY)
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set(_WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
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endif()
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if(NOT _TEST_LIST)
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set(_TEST_LIST ${TARGET}_TESTS)
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endif()
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## Generate a unique name based on the extra arguments
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string(SHA1 args_hash "${_TEST_SPEC} ${_EXTRA_ARGS} ${_REPORTER} ${_OUTPUT_DIR} ${_OUTPUT_PREFIX} ${_OUTPUT_SUFFIX}")
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string(SUBSTRING ${args_hash} 0 7 args_hash)
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# Define rule to generate test list for aforementioned test executable
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set(ctest_include_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_include-${args_hash}.cmake")
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set(ctest_tests_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_tests-${args_hash}.cmake")
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get_property(crosscompiling_emulator
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TARGET ${TARGET}
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PROPERTY CROSSCOMPILING_EMULATOR
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)
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add_custom_command(
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TARGET ${TARGET} POST_BUILD
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BYPRODUCTS "${ctest_tests_file}"
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COMMAND "${CMAKE_COMMAND}"
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-D "TEST_TARGET=${TARGET}"
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-D "TEST_EXECUTABLE=$<TARGET_FILE:${TARGET}>"
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-D "TEST_EXECUTOR=${crosscompiling_emulator}"
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-D "TEST_WORKING_DIR=${_WORKING_DIRECTORY}"
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-D "TEST_SPEC=${_TEST_SPEC}"
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-D "TEST_EXTRA_ARGS=${_EXTRA_ARGS}"
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-D "TEST_PROPERTIES=${_PROPERTIES}"
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-D "TEST_PREFIX=${_TEST_PREFIX}"
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-D "TEST_SUFFIX=${_TEST_SUFFIX}"
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-D "TEST_LIST=${_TEST_LIST}"
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-D "TEST_REPORTER=${_REPORTER}"
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-D "TEST_OUTPUT_DIR=${_OUTPUT_DIR}"
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-D "TEST_OUTPUT_PREFIX=${_OUTPUT_PREFIX}"
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-D "TEST_OUTPUT_SUFFIX=${_OUTPUT_SUFFIX}"
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-D "CTEST_FILE=${ctest_tests_file}"
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-P "${_CATCH_DISCOVER_TESTS_SCRIPT}"
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VERBATIM
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)
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file(WRITE "${ctest_include_file}"
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"if(EXISTS \"${ctest_tests_file}\")\n"
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" include(\"${ctest_tests_file}\")\n"
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"else()\n"
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" add_test(${TARGET}_NOT_BUILT-${args_hash} ${TARGET}_NOT_BUILT-${args_hash})\n"
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"endif()\n"
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)
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if(NOT ${CMAKE_VERSION} VERSION_LESS "3.10.0")
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# Add discovered tests to directory TEST_INCLUDE_FILES
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set_property(DIRECTORY
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APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
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)
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else()
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# Add discovered tests as directory TEST_INCLUDE_FILE if possible
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get_property(test_include_file_set DIRECTORY PROPERTY TEST_INCLUDE_FILE SET)
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if (NOT ${test_include_file_set})
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set_property(DIRECTORY
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PROPERTY TEST_INCLUDE_FILE "${ctest_include_file}"
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)
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else()
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message(FATAL_ERROR
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"Cannot set more than one TEST_INCLUDE_FILE"
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)
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endif()
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endif()
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endfunction()
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###############################################################################
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set(_CATCH_DISCOVER_TESTS_SCRIPT
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${CMAKE_CURRENT_LIST_DIR}/CatchAddTests.cmake
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CACHE INTERNAL "Catch2 full path to CatchAddTests.cmake helper file"
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)
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@ -0,0 +1,135 @@
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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set(prefix "${TEST_PREFIX}")
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set(suffix "${TEST_SUFFIX}")
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set(spec ${TEST_SPEC})
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set(extra_args ${TEST_EXTRA_ARGS})
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set(properties ${TEST_PROPERTIES})
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set(reporter ${TEST_REPORTER})
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set(output_dir ${TEST_OUTPUT_DIR})
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set(output_prefix ${TEST_OUTPUT_PREFIX})
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set(output_suffix ${TEST_OUTPUT_SUFFIX})
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set(script)
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set(suite)
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set(tests)
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function(add_command NAME)
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set(_args "")
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# use ARGV* instead of ARGN, because ARGN splits arrays into multiple arguments
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math(EXPR _last_arg ${ARGC}-1)
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foreach(_n RANGE 1 ${_last_arg})
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set(_arg "${ARGV${_n}}")
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if(_arg MATCHES "[^-./:a-zA-Z0-9_]")
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set(_args "${_args} [==[${_arg}]==]") # form a bracket_argument
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else()
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set(_args "${_args} ${_arg}")
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endif()
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endforeach()
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set(script "${script}${NAME}(${_args})\n" PARENT_SCOPE)
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endfunction()
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# Run test executable to get list of available tests
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if(NOT EXISTS "${TEST_EXECUTABLE}")
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message(FATAL_ERROR
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"Specified test executable '${TEST_EXECUTABLE}' does not exist"
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)
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endif()
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execute_process(
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COMMAND ${TEST_EXECUTOR} "${TEST_EXECUTABLE}" ${spec} --list-test-names-only
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OUTPUT_VARIABLE output
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RESULT_VARIABLE result
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WORKING_DIRECTORY "${TEST_WORKING_DIR}"
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)
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# Catch --list-test-names-only reports the number of tests, so 0 is... surprising
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if(${result} EQUAL 0)
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message(WARNING
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"Test executable '${TEST_EXECUTABLE}' contains no tests!\n"
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)
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elseif(${result} LESS 0)
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message(FATAL_ERROR
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"Error running test executable '${TEST_EXECUTABLE}':\n"
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" Result: ${result}\n"
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" Output: ${output}\n"
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)
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endif()
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string(REPLACE "\n" ";" output "${output}")
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# Run test executable to get list of available reporters
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execute_process(
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COMMAND ${TEST_EXECUTOR} "${TEST_EXECUTABLE}" ${spec} --list-reporters
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OUTPUT_VARIABLE reporters_output
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RESULT_VARIABLE reporters_result
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WORKING_DIRECTORY "${TEST_WORKING_DIR}"
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)
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if(${reporters_result} EQUAL 0)
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message(WARNING
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"Test executable '${TEST_EXECUTABLE}' contains no reporters!\n"
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)
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elseif(${reporters_result} LESS 0)
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message(FATAL_ERROR
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"Error running test executable '${TEST_EXECUTABLE}':\n"
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" Result: ${reporters_result}\n"
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" Output: ${reporters_output}\n"
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)
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endif()
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string(FIND "${reporters_output}" "${reporter}" reporter_is_valid)
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if(reporter AND ${reporter_is_valid} EQUAL -1)
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message(FATAL_ERROR
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"\"${reporter}\" is not a valid reporter!\n"
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)
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endif()
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# Prepare reporter
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if(reporter)
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set(reporter_arg "--reporter ${reporter}")
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endif()
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# Prepare output dir
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if(output_dir AND NOT IS_ABSOLUTE ${output_dir})
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set(output_dir "${TEST_WORKING_DIR}/${output_dir}")
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if(NOT EXISTS ${output_dir})
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file(MAKE_DIRECTORY ${output_dir})
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endif()
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endif()
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# Parse output
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foreach(line ${output})
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set(test ${line})
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# Escape characters in test case names that would be parsed by Catch2
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set(test_name ${test})
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foreach(char , [ ])
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string(REPLACE ${char} "\\${char}" test_name ${test_name})
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endforeach(char)
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# ...add output dir
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if(output_dir)
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string(REGEX REPLACE "[^A-Za-z0-9_]" "_" test_name_clean ${test_name})
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set(output_dir_arg "--out ${output_dir}/${output_prefix}${test_name_clean}${output_suffix}")
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endif()
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# ...and add to script
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add_command(add_test
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"${prefix}${test}${suffix}"
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${TEST_EXECUTOR}
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"${TEST_EXECUTABLE}"
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"${test_name}"
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${extra_args}
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"${reporter_arg}"
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"${output_dir_arg}"
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)
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add_command(set_tests_properties
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"${prefix}${test}${suffix}"
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PROPERTIES
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WORKING_DIRECTORY "${TEST_WORKING_DIR}"
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${properties}
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)
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list(APPEND tests "${prefix}${test}${suffix}")
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endforeach()
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# Create a list of all discovered tests, which users may use to e.g. set
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# properties on the tests
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add_command(set ${TEST_LIST} ${tests})
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# Write CTest script
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file(WRITE "${CTEST_FILE}" "${script}")
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@ -1,3 +1,3 @@
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The files in this directory are not licensed under the same terms as the
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rest of OpenTTD. Licensing details can be found in OpenTTD's readme.txt
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rest of OpenTTD. Licensing details can be found in OpenTTD's README.md
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and in this directory or subdirectories as well.
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@ -0,0 +1,3 @@
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add_files(
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catch.hpp
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)
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@ -0,0 +1,23 @@
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Boost Software License - Version 1.0 - August 17th, 2003
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||||
Permission is hereby granted, free of charge, to any person or organization
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||||
obtaining a copy of the software and accompanying documentation covered by
|
||||
this license (the "Software") to use, reproduce, display, distribute,
|
||||
execute, and transmit the Software, and to prepare derivative works of the
|
||||
Software, and to permit third-parties to whom the Software is furnished to
|
||||
do so, all subject to the following:
|
||||
|
||||
The copyright notices in the Software and this entire statement, including
|
||||
the above license grant, this restriction and the following disclaimer,
|
||||
must be included in all copies of the Software, in whole or in part, and
|
||||
all derivative works of the Software, unless such copies or derivative
|
||||
works are solely in the form of machine-executable object code generated by
|
||||
a source language processor.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
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