fish-shell/cmake/Tests.cmake
Fabian Homborg 5e3c40207d cmake: Pass the source directory to the tests
Our tests typically run in their own environment, which is great for
normal tests.

However for the coming translation test, we don't want to copy the .po
files into the test environment, so it's nice to have a way out.
2021-10-18 17:02:17 +02:00

173 lines
7.8 KiB
CMake

# This adds ctest support to the project
enable_testing()
# By default, ctest runs tests serially
if(NOT CTEST_PARALLEL_LEVEL)
include(ProcessorCount)
ProcessorCount(CORES)
set(CTEST_PARALLEL_LEVEL ${CORES})
endif()
# Put in a tests folder to reduce the top level targets in IDEs.
set(CMAKE_FOLDER tests)
# We will use 125 as a reserved exit code to indicate that a test has been skipped, i.e. it did not
# pass but it should not be considered a failed test run, either.
set(SKIP_RETURN_CODE 125)
# Even though we are using CMake's ctest for testing, we still define our own `make test` target
# rather than use its default for many reasons:
# * CMake doesn't run tests in-proc or even add each tests as an individual node in the ninja
# dependency tree, instead it just bundles all tests into a target called `test` that always just
# shells out to `ctest`, so there are no build-related benefits to not doing that ourselves.
# * CMake devs insist that it is appropriate for `make test` to never depend on `make all`, i.e.
# running `make test` does not require any of the binaries to be built before testing.
# * The only way to have a test depend on a binary is to add a fake test with a name like
# "build_fish" that executes CMake recursively to build the `fish` target.
# * It is not possible to set top-level CTest options/settings such as CTEST_PARALLEL_LEVEL from
# within the CMake configuration file.
# * Circling back to the point about individual tests not being actual Makefile targets, CMake does
# not offer any way to execute a named test via the `make`/`ninja`/whatever interface; the only
# way to manually invoke test `foo` is to to manually run `ctest` and specify a regex matching
# `foo` as an argument, e.g. `ctest -R ^foo$`... which is really crazy.
# Set a policy so CMake stops complaining when we use the target name "test"
cmake_policy(PUSH)
if(POLICY CMP0037)
cmake_policy(SET CMP0037 OLD)
endif()
add_custom_target(test
COMMAND env CTEST_PARALLEL_LEVEL=${CTEST_PARALLEL_LEVEL} FISH_FORCE_COLOR=1
FISH_SOURCE_DIR=${CMAKE_SOURCE_DIR}
${CMAKE_CTEST_COMMAND} --force-new-ctest-process # --verbose
--output-on-failure --progress
DEPENDS fish_tests tests_buildroot_target
USES_TERMINAL
)
cmake_policy(POP)
# Build the low-level tests code
add_executable(fish_tests EXCLUDE_FROM_ALL
src/fish_tests.cpp)
fish_link_deps_and_sign(fish_tests)
# The "test" directory.
set(TEST_DIR ${CMAKE_CURRENT_BINARY_DIR}/test)
# CMake doesn't really support dynamic test discovery where a test harness is executed to list the
# tests it contains, making fish_tests.cpp's tests opaque to CMake (whereas littlecheck tests can be
# enumerated from the filesystem). We used to compile fish_tests.cpp without linking against
# anything (-Wl,-undefined,dynamic_lookup,--unresolved-symbols=ignore-all) to get it to print its
# tests at configuration time, but that's a little too much dark CMake magic.
#
# We now identify tests by checking against a magic regex that's #define'd as a no-op C-side.
file(READ "${CMAKE_SOURCE_DIR}/src/fish_tests.cpp" FISH_TESTS_CPP)
string(REGEX MATCHALL "TEST_GROUP\\( *\"([^\"]+)\"" "LOW_LEVEL_TESTS" "${FISH_TESTS_CPP}")
string(REGEX REPLACE "TEST_GROUP\\( *\"([^\"]+)\"" "\\1" "LOW_LEVEL_TESTS" "${LOW_LEVEL_TESTS}")
list(REMOVE_DUPLICATES LOW_LEVEL_TESTS)
# The directory into which fish is installed.
set(TEST_INSTALL_DIR ${TEST_DIR}/buildroot)
# The directory where the tests expect to find the fish root (./bin, etc)
set(TEST_ROOT_DIR ${TEST_DIR}/root)
# Copy needed directories for out-of-tree builds
if(NOT FISH_IN_TREE_BUILD)
add_custom_target(funcs_dir)
add_custom_command(TARGET funcs_dir
COMMAND mkdir -p ${CMAKE_BINARY_DIR}/share
# Don't run ln twice or it will create a new link in the link.
COMMAND test -e ${CMAKE_BINARY_DIR}/share/functions || ln -sf
${CMAKE_SOURCE_DIR}/share/functions/ ${CMAKE_BINARY_DIR}/share/functions
COMMENT "Symlinking fish functions to binary dir"
VERBATIM)
add_custom_target(tests_dir DEPENDS tests)
add_custom_command(TARGET tests_dir
COMMAND ${CMAKE_COMMAND} -E copy_directory
${CMAKE_SOURCE_DIR}/tests/ ${CMAKE_BINARY_DIR}/tests/
COMMENT "Copying test files to binary dir"
VERBATIM)
add_dependencies(fish_tests tests_dir funcs_dir)
endif()
# Copy littlecheck.py
configure_file(build_tools/littlecheck.py littlecheck.py COPYONLY)
# Copy pexpect_helper.py
configure_file(build_tools/pexpect_helper.py pexpect_helper.py COPYONLY)
# Suppress generating Xcode schemes for all tests, there's too many.
set(CMAKE_XCODE_GENERATE_SCHEME 0)
# CMake being CMake, you can't just add a DEPENDS argument to add_test to make it depend on any of
# your binaries actually being built before `make test` is executed (requiring `make all` first),
# and the only dependency a test can have is on another test. So we make building fish and
# `fish_tests` prerequisites to our entire top-level `test` target.
function(add_test_target NAME)
add_custom_target("test_${NAME}"
COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -R "^${NAME}$$"
DEPENDS fish_tests tests_buildroot_target
USES_TERMINAL
)
endfunction()
add_custom_target(tests_buildroot_target
# Make the directory in which to run tests:
COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_INSTALL_DIR}
COMMAND DESTDIR=${TEST_INSTALL_DIR} ${CMAKE_COMMAND}
--build ${CMAKE_CURRENT_BINARY_DIR} --target install
# Put fish_test_helper there too:
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/fish_test_helper
${TEST_INSTALL_DIR}/${CMAKE_INSTALL_PREFIX}/bin
# Also symlink fish to where the tests expect it to be:
COMMAND ${CMAKE_COMMAND} -E create_symlink
${TEST_INSTALL_DIR}/${CMAKE_INSTALL_PREFIX}
${TEST_ROOT_DIR}
DEPENDS fish fish_test_helper)
# CMake less than 3.9.0 "fully supports" setting an exit code to denote a skipped test, but then
# it just goes ahead and reports it as failed. Really?
if(${CMAKE_VERSION} VERSION_LESS "3.9.0")
set(CMAKE_SKIPPED_HACK "env" "CMAKE_SKIPPED_HACK=1")
else()
set(CMAKE_SKIPPED_HACK)
endif()
foreach(LTEST ${LOW_LEVEL_TESTS})
add_test(
NAME ${LTEST}
COMMAND sh ${CMAKE_CURRENT_BINARY_DIR}/tests/test_env.sh
${CMAKE_BINARY_DIR}/fish_tests ${LTEST}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
)
set_tests_properties(${LTEST} PROPERTIES SKIP_RETURN_CODE ${SKIP_RETURN_CODE})
add_test_target("${LTEST}")
endforeach(LTEST)
FILE(GLOB FISH_CHECKS CONFIGURE_DEPENDS ${CMAKE_SOURCE_DIR}/tests/checks/*.fish)
foreach(CHECK ${FISH_CHECKS})
get_filename_component(CHECK_NAME ${CHECK} NAME)
get_filename_component(CHECK ${CHECK} NAME_WE)
add_test(NAME ${CHECK_NAME}
COMMAND ${CMAKE_SKIPPED_HACK} sh ${CMAKE_CURRENT_BINARY_DIR}/tests/test_driver.sh
${CMAKE_CURRENT_BINARY_DIR}/tests/test.fish ${CHECK}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/tests
)
set_tests_properties(${CHECK_NAME} PROPERTIES SKIP_RETURN_CODE ${SKIP_RETURN_CODE})
add_test_target("${CHECK_NAME}")
endforeach(CHECK)
FILE(GLOB PEXPECTS CONFIGURE_DEPENDS ${CMAKE_SOURCE_DIR}/tests/pexpects/*.py)
foreach(PEXPECT ${PEXPECTS})
get_filename_component(PEXPECT ${PEXPECT} NAME)
add_test(NAME ${PEXPECT}
COMMAND ${CMAKE_SKIPPED_HACK} sh ${CMAKE_CURRENT_BINARY_DIR}/tests/test_driver.sh
${CMAKE_CURRENT_BINARY_DIR}/tests/interactive.fish ${PEXPECT}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/tests
)
set_tests_properties(${PEXPECT} PROPERTIES SKIP_RETURN_CODE ${SKIP_RETURN_CODE})
add_test_target("${PEXPECT}")
endforeach(PEXPECT)