You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
464 lines
18 KiB
464 lines
18 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
GoogleTest
|
|
----------
|
|
|
|
This module defines functions to help use the Google Test infrastructure. Two
|
|
mechanisms for adding tests are provided. :command:`gtest_add_tests` has been
|
|
around for some time, originally via ``find_package(GTest)``.
|
|
:command:`gtest_discover_tests` was introduced in CMake 3.10.
|
|
|
|
The (older) :command:`gtest_add_tests` scans source files to identify tests.
|
|
This is usually effective, with some caveats, including in cross-compiling
|
|
environments, and makes setting additional properties on tests more convenient.
|
|
However, its handling of parameterized tests is less comprehensive, and it
|
|
requires re-running CMake to detect changes to the list of tests.
|
|
|
|
The (newer) :command:`gtest_discover_tests` discovers tests by asking the
|
|
compiled test executable to enumerate its tests. This is more robust and
|
|
provides better handling of parameterized tests, and does not require CMake
|
|
to be re-run when tests change. However, it may not work in a cross-compiling
|
|
environment, and setting test properties is less convenient.
|
|
|
|
More details can be found in the documentation of the respective functions.
|
|
|
|
Both commands are intended to replace use of :command:`add_test` to register
|
|
tests, and will create a separate CTest test for each Google Test test case.
|
|
Note that this is in some cases less efficient, as common set-up and tear-down
|
|
logic cannot be shared by multiple test cases executing in the same instance.
|
|
However, it provides more fine-grained pass/fail information to CTest, which is
|
|
usually considered as more beneficial. By default, the CTest test name is the
|
|
same as the Google Test name (i.e. ``suite.testcase``); see also
|
|
``TEST_PREFIX`` and ``TEST_SUFFIX``.
|
|
|
|
.. command:: gtest_add_tests
|
|
|
|
Automatically add tests with CTest by scanning source code for Google Test
|
|
macros::
|
|
|
|
gtest_add_tests(TARGET target
|
|
[SOURCES src1...]
|
|
[EXTRA_ARGS arg1...]
|
|
[WORKING_DIRECTORY dir]
|
|
[TEST_PREFIX prefix]
|
|
[TEST_SUFFIX suffix]
|
|
[SKIP_DEPENDENCY]
|
|
[TEST_LIST outVar]
|
|
)
|
|
|
|
``gtest_add_tests`` attempts to identify tests by scanning source files.
|
|
Although this is generally effective, it uses only a basic regular expression
|
|
match, which can be defeated by atypical test declarations, and is unable to
|
|
fully "split" parameterized tests. Additionally, it requires that CMake be
|
|
re-run to discover any newly added, removed or renamed tests (by default,
|
|
this means that CMake is re-run when any test source file is changed, but see
|
|
``SKIP_DEPENDENCY``). However, it has the advantage of declaring tests at
|
|
CMake time, which somewhat simplifies setting additional properties on tests,
|
|
and always works in a cross-compiling environment.
|
|
|
|
The options are:
|
|
|
|
``TARGET target``
|
|
Specifies the Google Test executable, which must be a known CMake
|
|
executable target. CMake will substitute the location of the built
|
|
executable when running the test.
|
|
|
|
``SOURCES src1...``
|
|
When provided, only the listed files will be scanned for test cases. If
|
|
this option is not given, the :prop_tgt:`SOURCES` property of the
|
|
specified ``target`` will be used to obtain the list of sources.
|
|
|
|
``EXTRA_ARGS arg1...``
|
|
Any extra arguments to pass on the command line to each test case.
|
|
|
|
``WORKING_DIRECTORY dir``
|
|
Specifies the directory in which to run the discovered test cases. If this
|
|
option is not provided, the current binary directory is used.
|
|
|
|
``TEST_PREFIX prefix``
|
|
Specifies a ``prefix`` to be prepended to the name of each discovered test
|
|
case. This can be useful when the same source files are being used in
|
|
multiple calls to ``gtest_add_test()`` but with different ``EXTRA_ARGS``.
|
|
|
|
``TEST_SUFFIX suffix``
|
|
Similar to ``TEST_PREFIX`` except the ``suffix`` is appended to the name of
|
|
every discovered test case. Both ``TEST_PREFIX`` and ``TEST_SUFFIX`` may
|
|
be specified.
|
|
|
|
``SKIP_DEPENDENCY``
|
|
Normally, the function creates a dependency which will cause CMake to be
|
|
re-run if any of the sources being scanned are changed. This is to ensure
|
|
that the list of discovered tests is updated. If this behavior is not
|
|
desired (as may be the case while actually writing the test cases), this
|
|
option can be used to prevent the dependency from being added.
|
|
|
|
``TEST_LIST outVar``
|
|
The variable named by ``outVar`` will be populated in the calling scope
|
|
with the list of discovered test cases. This allows the caller to do
|
|
things like manipulate test properties of the discovered tests.
|
|
|
|
.. code-block:: cmake
|
|
|
|
include(GoogleTest)
|
|
add_executable(FooTest FooUnitTest.cxx)
|
|
gtest_add_tests(TARGET FooTest
|
|
TEST_SUFFIX .noArgs
|
|
TEST_LIST noArgsTests
|
|
)
|
|
gtest_add_tests(TARGET FooTest
|
|
EXTRA_ARGS --someArg someValue
|
|
TEST_SUFFIX .withArgs
|
|
TEST_LIST withArgsTests
|
|
)
|
|
set_tests_properties(${noArgsTests} PROPERTIES TIMEOUT 10)
|
|
set_tests_properties(${withArgsTests} PROPERTIES TIMEOUT 20)
|
|
|
|
For backward compatibility, the following form is also supported::
|
|
|
|
gtest_add_tests(exe args files...)
|
|
|
|
``exe``
|
|
The path to the test executable or the name of a CMake target.
|
|
``args``
|
|
A ;-list of extra arguments to be passed to executable. The entire
|
|
list must be passed as a single argument. Enclose it in quotes,
|
|
or pass ``""`` for no arguments.
|
|
``files...``
|
|
A list of source files to search for tests and test fixtures.
|
|
Alternatively, use ``AUTO`` to specify that ``exe`` is the name
|
|
of a CMake executable target whose sources should be scanned.
|
|
|
|
.. code-block:: cmake
|
|
|
|
include(GoogleTest)
|
|
set(FooTestArgs --foo 1 --bar 2)
|
|
add_executable(FooTest FooUnitTest.cxx)
|
|
gtest_add_tests(FooTest "${FooTestArgs}" AUTO)
|
|
|
|
.. command:: gtest_discover_tests
|
|
|
|
Automatically add tests with CTest by querying the compiled test executable
|
|
for available tests::
|
|
|
|
gtest_discover_tests(target
|
|
[EXTRA_ARGS arg1...]
|
|
[WORKING_DIRECTORY dir]
|
|
[TEST_PREFIX prefix]
|
|
[TEST_SUFFIX suffix]
|
|
[NO_PRETTY_TYPES] [NO_PRETTY_VALUES]
|
|
[PROPERTIES name1 value1...]
|
|
[TEST_LIST var]
|
|
[DISCOVERY_TIMEOUT seconds]
|
|
)
|
|
|
|
``gtest_discover_tests`` sets up a post-build command on the test executable
|
|
that generates the list of tests by parsing the output from running the test
|
|
with the ``--gtest_list_tests`` argument. Compared to the source parsing
|
|
approach of :command:`gtest_add_tests`, this ensures that the full list of
|
|
tests, including instantiations of parameterized tests, is obtained. Since
|
|
test discovery occurs at build time, it is not necessary to re-run CMake when
|
|
the list of tests changes.
|
|
However, it requires that :prop_tgt:`CROSSCOMPILING_EMULATOR` is properly set
|
|
in order to function in a cross-compiling environment.
|
|
|
|
Additionally, setting properties on tests is somewhat less convenient, since
|
|
the tests are not available at CMake time. Additional test properties may be
|
|
assigned to the set of tests as a whole using the ``PROPERTIES`` option. If
|
|
more fine-grained test control is needed, custom content may be provided
|
|
through an external CTest script using the :prop_dir:`TEST_INCLUDE_FILES`
|
|
directory property. The set of discovered tests is made accessible to such a
|
|
script via the ``<target>_TESTS`` variable.
|
|
|
|
The options are:
|
|
|
|
``target``
|
|
Specifies the Google Test executable, which must be a known CMake
|
|
executable target. CMake will substitute the location of the built
|
|
executable when running the test.
|
|
|
|
``EXTRA_ARGS arg1...``
|
|
Any extra arguments to pass on the command line to each test case.
|
|
|
|
``WORKING_DIRECTORY dir``
|
|
Specifies the directory in which to run the discovered test cases. If this
|
|
option is not provided, the current binary directory is used.
|
|
|
|
``TEST_PREFIX prefix``
|
|
Specifies a ``prefix`` to be prepended to the name of each discovered test
|
|
case. This can be useful when the same test executable is being used in
|
|
multiple calls to ``gtest_discover_tests()`` but with different
|
|
``EXTRA_ARGS``.
|
|
|
|
``TEST_SUFFIX suffix``
|
|
Similar to ``TEST_PREFIX`` except the ``suffix`` is appended to the name of
|
|
every discovered test case. Both ``TEST_PREFIX`` and ``TEST_SUFFIX`` may
|
|
be specified.
|
|
|
|
``NO_PRETTY_TYPES``
|
|
By default, the type index of type-parameterized tests is replaced by the
|
|
actual type name in the CTest test name. If this behavior is undesirable
|
|
(e.g. because the type names are unwieldy), this option will suppress this
|
|
behavior.
|
|
|
|
``NO_PRETTY_VALUES``
|
|
By default, the value index of value-parameterized tests is replaced by the
|
|
actual value in the CTest test name. If this behavior is undesirable
|
|
(e.g. because the value strings are unwieldy), this option will suppress
|
|
this behavior.
|
|
|
|
``PROPERTIES name1 value1...``
|
|
Specifies additional properties to be set on all tests discovered by this
|
|
invocation of ``gtest_discover_tests``.
|
|
|
|
``TEST_LIST var``
|
|
Make the list of tests available in the variable ``var``, rather than the
|
|
default ``<target>_TESTS``. This can be useful when the same test
|
|
executable is being used in multiple calls to ``gtest_discover_tests()``.
|
|
Note that this variable is only available in CTest.
|
|
|
|
``DISCOVERY_TIMEOUT num``
|
|
Specifies how long (in seconds) CMake will wait for the test to enumerate
|
|
available tests. If the test takes longer than this, discovery (and your
|
|
build) will fail. Most test executables will enumerate their tests very
|
|
quickly, but under some exceptional circumstances, a test may require a
|
|
longer timeout. The default is 5. See also the ``TIMEOUT`` option of
|
|
:command:`execute_process`.
|
|
|
|
.. note::
|
|
|
|
In CMake versions 3.10.1 and 3.10.2, this option was called ``TIMEOUT``.
|
|
This clashed with the ``TIMEOUT`` test property, which is one of the
|
|
common properties that would be set with the ``PROPERTIES`` keyword,
|
|
usually leading to legal but unintended behavior. The keyword was
|
|
changed to ``DISCOVERY_TIMEOUT`` in CMake 3.10.3 to address this
|
|
problem. The ambiguous behavior of the ``TIMEOUT`` keyword in 3.10.1
|
|
and 3.10.2 has not been preserved.
|
|
|
|
#]=======================================================================]
|
|
|
|
# Save project's policies
|
|
cmake_policy(PUSH)
|
|
cmake_policy(SET CMP0057 NEW) # if IN_LIST
|
|
|
|
#------------------------------------------------------------------------------
|
|
function(gtest_add_tests)
|
|
|
|
if (ARGC LESS 1)
|
|
message(FATAL_ERROR "No arguments supplied to gtest_add_tests()")
|
|
endif()
|
|
|
|
set(options
|
|
SKIP_DEPENDENCY
|
|
)
|
|
set(oneValueArgs
|
|
TARGET
|
|
WORKING_DIRECTORY
|
|
TEST_PREFIX
|
|
TEST_SUFFIX
|
|
TEST_LIST
|
|
)
|
|
set(multiValueArgs
|
|
SOURCES
|
|
EXTRA_ARGS
|
|
)
|
|
set(allKeywords ${options} ${oneValueArgs} ${multiValueArgs})
|
|
|
|
unset(sources)
|
|
if("${ARGV0}" IN_LIST allKeywords)
|
|
cmake_parse_arguments(ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
|
|
set(autoAddSources YES)
|
|
else()
|
|
# Non-keyword syntax, convert to keyword form
|
|
if (ARGC LESS 3)
|
|
message(FATAL_ERROR "gtest_add_tests() without keyword options requires at least 3 arguments")
|
|
endif()
|
|
set(ARGS_TARGET "${ARGV0}")
|
|
set(ARGS_EXTRA_ARGS "${ARGV1}")
|
|
if(NOT "${ARGV2}" STREQUAL "AUTO")
|
|
set(ARGS_SOURCES "${ARGV}")
|
|
list(REMOVE_AT ARGS_SOURCES 0 1)
|
|
endif()
|
|
endif()
|
|
|
|
# The non-keyword syntax allows the first argument to be an arbitrary
|
|
# executable rather than a target if source files are also provided. In all
|
|
# other cases, both forms require a target.
|
|
if(NOT TARGET "${ARGS_TARGET}" AND NOT ARGS_SOURCES)
|
|
message(FATAL_ERROR "${ARGS_TARGET} does not define an existing CMake target")
|
|
endif()
|
|
if(NOT ARGS_WORKING_DIRECTORY)
|
|
unset(workDir)
|
|
else()
|
|
set(workDir WORKING_DIRECTORY "${ARGS_WORKING_DIRECTORY}")
|
|
endif()
|
|
|
|
if(NOT ARGS_SOURCES)
|
|
get_property(ARGS_SOURCES TARGET ${ARGS_TARGET} PROPERTY SOURCES)
|
|
endif()
|
|
|
|
unset(testList)
|
|
|
|
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 IN LISTS ARGS_SOURCES)
|
|
if(NOT ARGS_SKIP_DEPENDENCY)
|
|
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${source})
|
|
endif()
|
|
file(READ "${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/*" gtest_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" gtest_test_name ${hit})
|
|
elseif("x${test_type}" STREQUAL "xTYPED_TEST")
|
|
string(REGEX REPLACE ${gtest_case_name_regex} "\\1/*.\\2" gtest_test_name ${hit})
|
|
else()
|
|
message(WARNING "Could not parse GTest ${hit} for adding to CTest.")
|
|
continue()
|
|
endif()
|
|
|
|
# Make sure tests disabled in GTest get disabled in CTest
|
|
if(gtest_test_name MATCHES "(^|\\.)DISABLED_")
|
|
# Add the disabled test if CMake is new enough
|
|
# Note that this check is to allow backwards compatibility so this
|
|
# module can be copied locally in projects to use with older CMake
|
|
# versions
|
|
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.8.20170401)
|
|
string(REGEX REPLACE
|
|
"(^|\\.)DISABLED_" "\\1"
|
|
orig_test_name "${gtest_test_name}"
|
|
)
|
|
set(ctest_test_name
|
|
${ARGS_TEST_PREFIX}${orig_test_name}${ARGS_TEST_SUFFIX}
|
|
)
|
|
add_test(NAME ${ctest_test_name}
|
|
${workDir}
|
|
COMMAND ${ARGS_TARGET}
|
|
--gtest_also_run_disabled_tests
|
|
--gtest_filter=${gtest_test_name}
|
|
${ARGS_EXTRA_ARGS}
|
|
)
|
|
set_tests_properties(${ctest_test_name} PROPERTIES DISABLED TRUE)
|
|
list(APPEND testList ${ctest_test_name})
|
|
endif()
|
|
else()
|
|
set(ctest_test_name ${ARGS_TEST_PREFIX}${gtest_test_name}${ARGS_TEST_SUFFIX})
|
|
add_test(NAME ${ctest_test_name}
|
|
${workDir}
|
|
COMMAND ${ARGS_TARGET}
|
|
--gtest_filter=${gtest_test_name}
|
|
${ARGS_EXTRA_ARGS}
|
|
)
|
|
list(APPEND testList ${ctest_test_name})
|
|
endif()
|
|
endforeach()
|
|
endforeach()
|
|
|
|
if(ARGS_TEST_LIST)
|
|
set(${ARGS_TEST_LIST} ${testList} PARENT_SCOPE)
|
|
endif()
|
|
|
|
endfunction()
|
|
|
|
#------------------------------------------------------------------------------
|
|
function(gtest_discover_tests TARGET)
|
|
cmake_parse_arguments(
|
|
""
|
|
"NO_PRETTY_TYPES;NO_PRETTY_VALUES"
|
|
"TEST_PREFIX;TEST_SUFFIX;WORKING_DIRECTORY;TEST_LIST;DISCOVERY_TIMEOUT"
|
|
"EXTRA_ARGS;PROPERTIES"
|
|
${ARGN}
|
|
)
|
|
|
|
if(NOT _WORKING_DIRECTORY)
|
|
set(_WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
|
|
endif()
|
|
if(NOT _TEST_LIST)
|
|
set(_TEST_LIST ${TARGET}_TESTS)
|
|
endif()
|
|
if(NOT _DISCOVERY_TIMEOUT)
|
|
set(_DISCOVERY_TIMEOUT 5)
|
|
endif()
|
|
|
|
get_property(
|
|
has_counter
|
|
TARGET ${TARGET}
|
|
PROPERTY CTEST_DISCOVERED_TEST_COUNTER
|
|
SET
|
|
)
|
|
if(has_counter)
|
|
get_property(
|
|
counter
|
|
TARGET ${TARGET}
|
|
PROPERTY CTEST_DISCOVERED_TEST_COUNTER
|
|
)
|
|
math(EXPR counter "${counter} + 1")
|
|
else()
|
|
set(counter 1)
|
|
endif()
|
|
set_property(
|
|
TARGET ${TARGET}
|
|
PROPERTY CTEST_DISCOVERED_TEST_COUNTER
|
|
${counter}
|
|
)
|
|
|
|
# Define rule to generate test list for aforementioned test executable
|
|
set(ctest_file_base "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}[${counter}]")
|
|
set(ctest_include_file "${ctest_file_base}_include.cmake")
|
|
set(ctest_tests_file "${ctest_file_base}_tests.cmake")
|
|
get_property(crosscompiling_emulator
|
|
TARGET ${TARGET}
|
|
PROPERTY CROSSCOMPILING_EMULATOR
|
|
)
|
|
add_custom_command(
|
|
TARGET ${TARGET} POST_BUILD
|
|
BYPRODUCTS "${ctest_tests_file}"
|
|
COMMAND "${CMAKE_COMMAND}"
|
|
-D "TEST_TARGET=${TARGET}"
|
|
-D "TEST_EXECUTABLE=$<TARGET_FILE:${TARGET}>"
|
|
-D "TEST_EXECUTOR=${crosscompiling_emulator}"
|
|
-D "TEST_WORKING_DIR=${_WORKING_DIRECTORY}"
|
|
-D "TEST_EXTRA_ARGS=${_EXTRA_ARGS}"
|
|
-D "TEST_PROPERTIES=${_PROPERTIES}"
|
|
-D "TEST_PREFIX=${_TEST_PREFIX}"
|
|
-D "TEST_SUFFIX=${_TEST_SUFFIX}"
|
|
-D "NO_PRETTY_TYPES=${_NO_PRETTY_TYPES}"
|
|
-D "NO_PRETTY_VALUES=${_NO_PRETTY_VALUES}"
|
|
-D "TEST_LIST=${_TEST_LIST}"
|
|
-D "CTEST_FILE=${ctest_tests_file}"
|
|
-D "TEST_DISCOVERY_TIMEOUT=${_DISCOVERY_TIMEOUT}"
|
|
-P "${_GOOGLETEST_DISCOVER_TESTS_SCRIPT}"
|
|
VERBATIM
|
|
)
|
|
|
|
file(WRITE "${ctest_include_file}"
|
|
"if(EXISTS \"${ctest_tests_file}\")\n"
|
|
" include(\"${ctest_tests_file}\")\n"
|
|
"else()\n"
|
|
" add_test(${TARGET}_NOT_BUILT ${TARGET}_NOT_BUILT)\n"
|
|
"endif()\n"
|
|
)
|
|
|
|
# Add discovered tests to directory TEST_INCLUDE_FILES
|
|
set_property(DIRECTORY
|
|
APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
|
|
)
|
|
|
|
endfunction()
|
|
|
|
###############################################################################
|
|
|
|
set(_GOOGLETEST_DISCOVER_TESTS_SCRIPT
|
|
${CMAKE_CURRENT_LIST_DIR}/GoogleTestAddTests.cmake
|
|
)
|
|
|
|
# Restore project's policies
|
|
cmake_policy(POP)
|