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Improve unit testing (Part 1) (#3380)
* Refactor unit test creation
Add functions for creating tests and to supply test- and
standard-specific build settings.
Raises minimum CMake version to 3.13 in test directory.
json_test_add_test_for(
<file>
MAIN <main>
[CXX_STANDARDS <version_number>...] [FORCE])
Given a <file> unit-foo.cpp, produces
test-foo_cpp<version_number>
if C++ standard <version_number> is supported by the compiler and
thesource file contains JSON_HAS_CPP_<version_number>. Use FORCE to
create the test regardless of the file containing
JSON_HAS_CPP_<version_number>. Test targets are linked against <main>.
CXX_STANDARDS defaults to "11".
json_test_set_test_options(
all|<tests>
[CXX_STANDARDS all|<args>...]
[COMPILE_DEFINITIONS <args>...]
[COMPILE_FEATURES <args>...]
[COMPILE_OPTIONS <args>...]
[LINK_LIBRARIES <args>...]
[LINK_OPTIONS <args>...])
Supply test- and standard-specific build settings.
Specify multiple tests using a list e.g., "test-foo;test-bar".
Must be called BEFORE the test is created.
* Use CMAKE_MODULE_PATH
* Don't undef some macros if JSON_TEST_KEEP_MACROS is defined
* Use JSON_TEST_KEEP_MACROS
Incidentally enables the regression tests for #2546 and #3070.
A CHECK_THROWS_WITH_AS in #3070 was disabled which is tracked in #3377
and a line in from_json(..., std_fs::path&) was marked with LCOV_EXCL_LINE.
* Add three-way comparison feature test macro
* Disable broken comparison if JSON_HAS_THREE_WAY_COMPARISON
* Fix redefinition of inline constexpr statics
Redelcaration of inline constexpr static data members in namespace scope
was deprecated in C++17. Fixes -Werror=deprecated compilation failures.
* Fix more test build failures due to missing noexcept
* CI: update cmake_flags test to use CMake 3.13 in test directory
Also change default for JSON_BuildTests option to depend on CMake
version.
* CI: turn *_CXXFLAGS into CMake lists
* CI: use JSON_TestStandards to set CXX_STANDARD
* CI: pass extra CXXFLAGS to standards tests- Loading branch information
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| set(_json_test_cmake_list_file ${CMAKE_CURRENT_LIST_FILE}) | ||
|
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||
| ############################################################################# | ||
| # download test data | ||
| ############################################################################# | ||
|
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| include(download_test_data) | ||
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| # test fixture to download test data | ||
| add_test(NAME "download_test_data" COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR} | ||
| --target download_test_data | ||
| ) | ||
| set_tests_properties(download_test_data PROPERTIES FIXTURES_SETUP TEST_DATA) | ||
|
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||
| if(JSON_Valgrind) | ||
| find_program(CMAKE_MEMORYCHECK_COMMAND valgrind) | ||
| message(STATUS "Executing test suite with Valgrind (${CMAKE_MEMORYCHECK_COMMAND})") | ||
| set(memcheck_command "${CMAKE_MEMORYCHECK_COMMAND} ${CMAKE_MEMORYCHECK_COMMAND_OPTIONS} --error-exitcode=1 --leak-check=full") | ||
| separate_arguments(memcheck_command) | ||
| endif() | ||
|
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| ############################################################################# | ||
| # detect standard support | ||
| ############################################################################# | ||
|
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| # C++11 is the minimum required | ||
| set(compiler_supports_cpp_11 TRUE) | ||
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| foreach(feature ${CMAKE_CXX_COMPILE_FEATURES}) | ||
| if (${feature} STREQUAL cxx_std_14) | ||
| set(compiler_supports_cpp_14 TRUE) | ||
| elseif (${feature} STREQUAL cxx_std_17) | ||
| set(compiler_supports_cpp_17 TRUE) | ||
| elseif (${feature} STREQUAL cxx_std_20) | ||
| set(compiler_supports_cpp_20 TRUE) | ||
| elseif (${feature} STREQUAL cxx_std_23) | ||
| set(compiler_supports_cpp_23 TRUE) | ||
| endif() | ||
| endforeach() | ||
|
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||
| ############################################################################# | ||
| # test functions | ||
| ############################################################################# | ||
|
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||
| ############################################################################# | ||
| # json_test_set_test_options( | ||
| # all|<tests> | ||
| # [CXX_STANDARDS all|<args>...] | ||
| # [COMPILE_DEFINITIONS <args>...] | ||
| # [COMPILE_FEATURES <args>...] | ||
| # [COMPILE_OPTIONS <args>...] | ||
| # [LINK_LIBRARIES <args>...] | ||
| # [LINK_OPTIONS <args>...]) | ||
| # | ||
| # Supply test- and standard-specific build settings. | ||
| # Specify multiple tests using a list e.g., "test-foo;test-bar". | ||
| # | ||
| # Must be called BEFORE the test is created. | ||
| ############################################################################# | ||
|
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||
| function(json_test_set_test_options tests) | ||
| cmake_parse_arguments(args "" "" | ||
| "CXX_STANDARDS;COMPILE_DEFINITIONS;COMPILE_FEATURES;COMPILE_OPTIONS;LINK_LIBRARIES;LINK_OPTIONS" | ||
| ${ARGN}) | ||
|
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||
| if(NOT args_CXX_STANDARDS) | ||
| set(args_CXX_STANDARDS "all") | ||
| endif() | ||
|
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| foreach(test ${tests}) | ||
| if("${test}" STREQUAL "all") | ||
| set(test "") | ||
| endif() | ||
|
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||
| foreach(cxx_standard ${args_CXX_STANDARDS}) | ||
| if("${cxx_standard}" STREQUAL "all") | ||
| if("${test}" STREQUAL "") | ||
| message(FATAL_ERROR "Not supported. Change defaults in: ${_json_test_cmake_list_file}") | ||
| endif() | ||
| set(test_interface _json_test_interface_${test}) | ||
| else() | ||
| set(test_interface _json_test_interface_${test}_cpp_${cxx_standard}) | ||
| endif() | ||
|
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| if(NOT TARGET ${test_interface}) | ||
| add_library(${test_interface} INTERFACE) | ||
| endif() | ||
|
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| target_compile_definitions(${test_interface} INTERFACE ${args_COMPILE_DEFINITIONS}) | ||
| target_compile_features(${test_interface} INTERFACE ${args_COMPILE_FEATURES}) | ||
| target_compile_options(${test_interface} INTERFACE ${args_COMPILE_OPTIONS}) | ||
| target_link_libraries (${test_interface} INTERFACE ${args_LINK_LIBRARIES}) | ||
| target_link_options(${test_interface} INTERFACE ${args_LINK_OPTIONS}) | ||
| endforeach() | ||
| endforeach() | ||
| endfunction() | ||
|
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||
| # for internal use by json_test_add_test_for() | ||
| function(_json_test_add_test test_name file main cxx_standard) | ||
| set(test_target ${test_name}_cpp${cxx_standard}) | ||
|
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| if(TARGET ${test_target}) | ||
| message(FATAL_ERROR "Target ${test_target} has already been added.") | ||
| endif() | ||
|
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| add_executable(${test_target} ${file}) | ||
| target_link_libraries(${test_target} PRIVATE ${main}) | ||
|
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| # set and require C++ standard | ||
| set_target_properties(${test_target} PROPERTIES | ||
| CXX_STANDARD ${cxx_standard} | ||
| CXX_STANDARD_REQUIRED ON | ||
| ) | ||
|
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||
| # apply standard-specific build settings | ||
| if(TARGET _json_test_interface__cpp_${cxx_standard}) | ||
| target_link_libraries(${test_target} PRIVATE _json_test_interface__cpp_${cxx_standard}) | ||
| endif() | ||
|
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||
| # apply test-specific build settings | ||
| if(TARGET _json_test_interface_${test_name}) | ||
| target_link_libraries(${test_target} PRIVATE _json_test_interface_${test_name}) | ||
| endif() | ||
|
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||
| # apply test- and standard-specific build settings | ||
| if(TARGET _json_test_interface_${test_name}_cpp_${cxx_standard}) | ||
| target_link_libraries(${test_target} PRIVATE | ||
| _json_test_interface_${test_name}_cpp_${cxx_standard} | ||
| ) | ||
| endif() | ||
|
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||
| if (JSON_FastTests) | ||
| add_test(NAME ${test_target} | ||
| COMMAND ${test_target} ${DOCTEST_TEST_FILTER} | ||
| WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} | ||
| ) | ||
| else() | ||
| add_test(NAME ${test_target} | ||
| COMMAND ${test_target} ${DOCTEST_TEST_FILTER} --no-skip | ||
| WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} | ||
| ) | ||
| endif() | ||
| set_tests_properties(${test_target} PROPERTIES LABELS "all" FIXTURES_REQUIRED TEST_DATA) | ||
|
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||
| if(JSON_Valgrind) | ||
| add_test(NAME ${test_target}_valgrind | ||
| COMMAND ${memcheck_command} $<TARGET_FILE:${test_target}> ${DOCTEST_TEST_FILTER} | ||
| WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} | ||
| ) | ||
| set_tests_properties(${test_target}_valgrind PROPERTIES | ||
| LABELS "valgrind" FIXTURES_REQUIRED TEST_DATA | ||
| ) | ||
| endif() | ||
| endfunction() | ||
|
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||
| ############################################################################# | ||
| # json_test_add_test_for( | ||
| # <file> | ||
| # MAIN <main> | ||
| # [CXX_STANDARDS <version_number>...] [FORCE]) | ||
| # | ||
| # Given a <file> unit-foo.cpp, produces | ||
| # | ||
| # test-foo_cpp<version_number> | ||
| # | ||
| # if C++ standard <version_number> is supported by the compiler and the | ||
| # source file contains JSON_HAS_CPP_<version_number>. | ||
| # Use FORCE to create the test regardless of the file containing | ||
| # JSON_HAS_CPP_<version_number>. | ||
| # Test targets are linked against <main>. | ||
| # CXX_STANDARDS defaults to "11". | ||
| ############################################################################# | ||
|
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||
| function(json_test_add_test_for file) | ||
| cmake_parse_arguments(args "FORCE" "MAIN" "CXX_STANDARDS" ${ARGN}) | ||
|
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| get_filename_component(file_basename ${file} NAME_WE) | ||
| string(REGEX REPLACE "unit-([^$]+)" "test-\\1" test_name ${file_basename}) | ||
|
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| if("${args_MAIN}" STREQUAL "") | ||
| message(FATAL_ERROR "Required argument MAIN <main> missing.") | ||
| endif() | ||
|
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| if("${args_CXX_STANDARDS}" STREQUAL "") | ||
| set(args_CXX_STANDARDS 11) | ||
| endif() | ||
|
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||
| file(READ ${file} file_content) | ||
| foreach(cxx_standard ${args_CXX_STANDARDS}) | ||
| if(NOT compiler_supports_cpp_${cxx_standard}) | ||
| continue() | ||
| endif() | ||
|
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||
| # add unconditionally if C++11 (default) or forced | ||
| if(NOT ("${cxx_standard}" STREQUAL 11 OR args_FORCE)) | ||
| string(FIND "${file_content}" JSON_HAS_CPP_${cxx_standard} has_cpp_found) | ||
| if(${has_cpp_found} EQUAL -1) | ||
| continue() | ||
| endif() | ||
| endif() | ||
|
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||
| _json_test_add_test(${test_name} ${file} ${args_MAIN} ${cxx_standard}) | ||
| endforeach() | ||
| endfunction() |
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