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.
176 lines
6.9 KiB
176 lines
6.9 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
Catch
|
|
-----
|
|
|
|
This module defines a function to help use the Catch test framework.
|
|
|
|
The :command:`catch_discover_tests` discovers tests by asking the compiled test
|
|
executable to enumerate its tests. This 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.
|
|
|
|
This command is intended to replace use of :command:`add_test` to register
|
|
tests, and will create a separate CTest test for each Catch 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 Catch name; see also ``TEST_PREFIX`` and ``TEST_SUFFIX``.
|
|
|
|
.. command:: catch_discover_tests
|
|
|
|
Automatically add tests with CTest by querying the compiled test executable
|
|
for available tests::
|
|
|
|
catch_discover_tests(target
|
|
[TEST_SPEC arg1...]
|
|
[EXTRA_ARGS arg1...]
|
|
[WORKING_DIRECTORY dir]
|
|
[TEST_PREFIX prefix]
|
|
[TEST_SUFFIX suffix]
|
|
[PROPERTIES name1 value1...]
|
|
[TEST_LIST var]
|
|
)
|
|
|
|
``catch_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 ``--list-test-names-only`` argument. This ensures that the full
|
|
list of 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 Catch executable, which must be a known CMake executable
|
|
target. CMake will substitute the location of the built executable when
|
|
running the test.
|
|
|
|
``TEST_SPEC arg1...``
|
|
Specifies test cases, wildcarded test cases, tags and tag expressions to
|
|
pass to the Catch executable with the ``--list-test-names-only`` argument.
|
|
|
|
``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 ``catch_discover_tests()`` but with different
|
|
``TEST_SPEC`` or ``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.
|
|
|
|
``PROPERTIES name1 value1...``
|
|
Specifies additional properties to be set on all tests discovered by this
|
|
invocation of ``catch_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 ``catch_discover_tests()``.
|
|
Note that this variable is only available in CTest.
|
|
|
|
#]=======================================================================]
|
|
|
|
#------------------------------------------------------------------------------
|
|
function(catch_discover_tests TARGET)
|
|
cmake_parse_arguments(
|
|
""
|
|
""
|
|
"TEST_PREFIX;TEST_SUFFIX;WORKING_DIRECTORY;TEST_LIST"
|
|
"TEST_SPEC;EXTRA_ARGS;PROPERTIES"
|
|
${ARGN}
|
|
)
|
|
|
|
if(NOT _WORKING_DIRECTORY)
|
|
set(_WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
|
|
endif()
|
|
if(NOT _TEST_LIST)
|
|
set(_TEST_LIST ${TARGET}_TESTS)
|
|
endif()
|
|
|
|
## Generate a unique name based on the extra arguments
|
|
string(SHA1 args_hash "${_TEST_SPEC} ${_EXTRA_ARGS}")
|
|
string(SUBSTRING ${args_hash} 0 7 args_hash)
|
|
|
|
# Define rule to generate test list for aforementioned test executable
|
|
set(ctest_include_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_include-${args_hash}.cmake")
|
|
set(ctest_tests_file "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_tests-${args_hash}.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_SPEC=${_TEST_SPEC}"
|
|
-D "TEST_EXTRA_ARGS=${_EXTRA_ARGS}"
|
|
-D "TEST_PROPERTIES=${_PROPERTIES}"
|
|
-D "TEST_PREFIX=${_TEST_PREFIX}"
|
|
-D "TEST_SUFFIX=${_TEST_SUFFIX}"
|
|
-D "TEST_LIST=${_TEST_LIST}"
|
|
-D "CTEST_FILE=${ctest_tests_file}"
|
|
-P "${_CATCH_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-${args_hash} ${TARGET}_NOT_BUILT-${args_hash})\n"
|
|
"endif()\n"
|
|
)
|
|
|
|
if(NOT ${CMAKE_VERSION} VERSION_LESS "3.10.0")
|
|
# Add discovered tests to directory TEST_INCLUDE_FILES
|
|
set_property(DIRECTORY
|
|
APPEND PROPERTY TEST_INCLUDE_FILES "${ctest_include_file}"
|
|
)
|
|
else()
|
|
# Add discovered tests as directory TEST_INCLUDE_FILE if possible
|
|
get_property(test_include_file_set DIRECTORY PROPERTY TEST_INCLUDE_FILE SET)
|
|
if (NOT ${test_include_file_set})
|
|
set_property(DIRECTORY
|
|
PROPERTY TEST_INCLUDE_FILE "${ctest_include_file}"
|
|
)
|
|
else()
|
|
message(FATAL_ERROR
|
|
"Cannot set more than one TEST_INCLUDE_FILE"
|
|
)
|
|
endif()
|
|
endif()
|
|
|
|
endfunction()
|
|
|
|
###############################################################################
|
|
|
|
set(_CATCH_DISCOVER_TESTS_SCRIPT
|
|
${CMAKE_CURRENT_LIST_DIR}/CatchAddTests.cmake
|
|
)
|