entt/test/CMakeLists.txt

# Tests configuration

include(FetchContent)
include(CheckCXXSourceCompiles)

set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

if(ENTT_FIND_GTEST_PACKAGE)
    find_package(GTest REQUIRED)
else()
    FetchContent_Declare(
        googletest
        GIT_REPOSITORY https://github.com/google/googletest.git
        GIT_TAG main
        GIT_SHALLOW 1
    )

    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

    FetchContent_MakeAvailable(googletest)

    add_library(GTest::Main ALIAS gtest_main)

    target_compile_features(gtest PUBLIC cxx_std_20)
    set_target_properties(gtest PROPERTIES CXX_CLANG_TIDY "")

    target_compile_features(gtest_main PUBLIC cxx_std_20)
    set_target_properties(gtest_main PROPERTIES CXX_CLANG_TIDY "")

    target_compile_features(gmock PUBLIC cxx_std_20)
    set_target_properties(gmock PROPERTIES CXX_CLANG_TIDY "")

    target_compile_features(gmock_main PUBLIC cxx_std_20)
    set_target_properties(gmock_main PROPERTIES CXX_CLANG_TIDY "")
endif()

include_directories($<TARGET_PROPERTY:EnTT,INTERFACE_INCLUDE_DIRECTORIES>)
add_compile_options($<TARGET_PROPERTY:EnTT,INTERFACE_COMPILE_OPTIONS>)

function(SETUP_TARGET TARGET_NAME)
    set_target_properties(${TARGET_NAME} PROPERTIES CXX_EXTENSIONS OFF)
    target_compile_features(${TARGET_NAME} PRIVATE ${ENTT_CXX_STD})
    target_link_libraries(${TARGET_NAME} PRIVATE EnTT)

    if(MSVC)
        set_target_properties(${TARGET_NAME} PROPERTIES LINK_FLAGS_RELWITHDEBINFO "/PROFILE")

        target_compile_options(
            ${TARGET_NAME}
            PRIVATE
                $<$<STREQUAL:"${CMAKE_CXX_COMPILER_ID}","Clang">:
                    -Wdocumentation
                    -Wno-deprecated-declarations
                    -Wno-exceptions
                    -Wconversion
                >
                /EHsc /wd4324 /wd4996
                # disabling INCREMENTAL is required by SizeBench
                $<$<CONFIG:Debug>:/Od /INCREMENTAL:NO>
                $<$<CONFIG:Release>:/O2>
        )

        target_link_options(
            ${TARGET_NAME}
            PRIVATE
                # disabling INCREMENTAL is required by SizeBench
                $<$<CONFIG:Debug>:/INCREMENTAL:NO>
                $<$<CONFIG:Release>:/OPT:NOICF>
        )
    else()
        target_compile_options(
            ${TARGET_NAME}
            PRIVATE
                -fvisibility=hidden
                -pedantic
                -Wall
                -Wconversion
                -Wno-deprecated-declarations
                -Wshadow
                $<$<CONFIG:Debug>:-O0 -g>
                $<$<CONFIG:Release>:-O2>
        )
    endif()

    target_compile_definitions(
        ${TARGET_NAME}
        PRIVATE
            ENTT_ID_TYPE=${ENTT_ID_TYPE}
            _ENABLE_EXTENDED_ALIGNED_STORAGE
            NOMINMAX
            ${ARGN}
    )
endfunction()

add_library(odr OBJECT odr.cpp)
set_target_properties(odr PROPERTIES POSITION_INDEPENDENT_CODE ON)
SETUP_TARGET(odr)

function(SETUP_BASIC_TEST)
    cmake_parse_arguments(BASIC_TEST "DEFS" "NAME" "SOURCES" ${ARGN})
    add_executable(${BASIC_TEST_NAME} $<TARGET_OBJECTS:odr> ${BASIC_TEST_SOURCES})
    target_link_libraries(${BASIC_TEST_NAME} PRIVATE GTest::Main Threads::Threads)
    SETUP_TARGET(${BASIC_TEST_NAME} ${BASIC_TEST_UNPARSED_ARGUMENTS})
    add_test(NAME ${BASIC_TEST_NAME} COMMAND ${BASIC_TEST_NAME})
    set_tests_properties(${BASIC_TEST_NAME} PROPERTIES TIMEOUT 60)
endfunction()

function(SETUP_LIB_SHARED_TEST TEST_NAME SUB_PATH)
    set(TARGET_NAME ${TEST_NAME}_${SUB_PATH})
    add_library(_${TARGET_NAME} SHARED $<TARGET_OBJECTS:odr> lib/${TEST_NAME}/${SUB_PATH}/lib.cpp)
    SETUP_TARGET(_${TARGET_NAME} ENTT_API_EXPORT)
    SETUP_BASIC_TEST(NAME lib_${TARGET_NAME} SOURCES lib/${TEST_NAME}/${SUB_PATH}/main.cpp DEFS ENTT_API_IMPORT)
    set_target_properties(lib_${TARGET_NAME} PROPERTIES CXX_CLANG_TIDY "")
    target_link_libraries(lib_${TARGET_NAME} PRIVATE _${TARGET_NAME})
endfunction()

function(SETUP_LIB_PLUGIN_TEST TEST_NAME SUB_PATH)
    set(TARGET_NAME ${TEST_NAME}_${SUB_PATH})
    add_library(_${TARGET_NAME} MODULE $<TARGET_OBJECTS:odr> lib/${TEST_NAME}/${SUB_PATH}/plugin.cpp)
    SETUP_TARGET(_${TARGET_NAME} ${ARGVN})
    SETUP_BASIC_TEST(NAME lib_${TARGET_NAME} SOURCES lib/${TEST_NAME}/${SUB_PATH}/main.cpp DEFS PLUGIN="$<TARGET_FILE:_${TARGET_NAME}>" ${ARGVN})
    target_link_libraries(_${TARGET_NAME} PRIVATE cr::cr)
    target_link_libraries(lib_${TARGET_NAME} PRIVATE cr::cr ${CMAKE_DL_LIBS})
    set_target_properties(_${TARGET_NAME} PROPERTIES CXX_CLANG_TIDY "")
    set_target_properties(lib_${TARGET_NAME} PROPERTIES CXX_CLANG_TIDY "")
    target_compile_options(_${TARGET_NAME} PRIVATE $<$<NOT:$<STREQUAL:"${CMAKE_CXX_COMPILER_ID}","MSVC">>:-Wno-conversion>)
    target_compile_options(lib_${TARGET_NAME} PRIVATE $<$<NOT:$<STREQUAL:"${CMAKE_CXX_COMPILER_ID}","MSVC">>:-Wno-conversion>)
    add_dependencies(lib_${TARGET_NAME} _${TARGET_NAME})
endfunction()

# Test benchmark

if(ENTT_BUILD_BENCHMARK)
    SETUP_BASIC_TEST(
        NAME benchmark
        SOURCES benchmark/benchmark.cpp
    )

    set_target_properties(benchmark PROPERTIES CXX_CLANG_TIDY "")
endif()

# Test example

if(ENTT_BUILD_EXAMPLE)
    SETUP_BASIC_TEST(
        NAME example
        SOURCES
            example/custom_identifier.cpp
            example/entity_copy.cpp
            example/reserved_bits.cpp
            example/signal_less.cpp
    )
endif()

# Test lib

if(ENTT_BUILD_LIB)
    FetchContent_Declare(
        cr
        GIT_REPOSITORY https://github.com/fungos/cr.git
        GIT_TAG master
        GIT_SHALLOW 1
    )

    FetchContent_MakeAvailable(cr)

    add_library(cr::cr ALIAS cr)

    SETUP_LIB_SHARED_TEST(dispatcher shared)
    SETUP_LIB_PLUGIN_TEST(dispatcher plugin)

    SETUP_LIB_SHARED_TEST(emitter shared)
    SETUP_LIB_PLUGIN_TEST(emitter plugin)

    SETUP_LIB_SHARED_TEST(locator shared)
    SETUP_LIB_PLUGIN_TEST(locator plugin)

    SETUP_LIB_SHARED_TEST(meta shared)
    SETUP_LIB_PLUGIN_TEST(meta plugin)
    SETUP_LIB_PLUGIN_TEST(meta plugin_std ENTT_STANDARD_CPP)

    SETUP_LIB_SHARED_TEST(registry shared)
    SETUP_LIB_PLUGIN_TEST(registry plugin)

    SETUP_LIB_SHARED_TEST(view shared)
    SETUP_LIB_PLUGIN_TEST(view plugin)
endif()

# Test snapshot

if(ENTT_BUILD_SNAPSHOT)
    FetchContent_Declare(
        cereal
        GIT_REPOSITORY https://github.com/USCiLab/cereal.git
        GIT_TAG v1.3.2
        GIT_SHALLOW 1
    )
       
    set(BUILD_DOC OFF CACHE BOOL "" FORCE)
    set(BUILD_SANDBOX OFF CACHE BOOL "" FORCE)
    set(SKIP_PORTABILITY_TEST ON CACHE BOOL "" FORCE)
    set(SKIP_PERFORMANCE_COMPARISON ON CACHE BOOL "" FORCE)

    FetchContent_MakeAvailable(cereal)

    SETUP_BASIC_TEST(
        NAME snapshot
        SOURCES snapshot/snapshot.cpp
    )

    target_link_libraries(snapshot PRIVATE cereal)
    target_compile_options(snapshot PRIVATE $<$<NOT:$<STREQUAL:"${CMAKE_CXX_COMPILER_ID}","MSVC">>:-Wno-conversion>)
    set_target_properties(snapshot PROPERTIES CXX_CLANG_TIDY "")
endif()

# Test config

SETUP_BASIC_TEST(
    NAME config
    SOURCES entt/config/version.cpp
)

# Test container

SETUP_BASIC_TEST(
    NAME container
    SOURCES
        entt/container/dense_map.cpp
        entt/container/dense_set.cpp
        entt/container/table.cpp
)

# Test core

SETUP_BASIC_TEST(
    NAME core
    SOURCES
        entt/core/algorithm.cpp
        entt/core/any.cpp
        entt/core/bit.cpp
        entt/core/compressed_pair.cpp
        entt/core/enum.cpp
        entt/core/family.cpp
        entt/core/hashed_string.cpp
        entt/core/ident.cpp
        entt/core/iterator.cpp
        entt/core/memory.cpp
        entt/core/monostate.cpp
        entt/core/tuple.cpp
        entt/core/type_info.cpp
        entt/core/type_traits.cpp
        entt/core/utility.cpp
)

# Test entity

SETUP_BASIC_TEST(
    NAME entity
    SOURCES
        entt/entity/component.cpp
        entt/entity/entity.cpp
        entt/entity/group.cpp
        entt/entity/handle.cpp
        entt/entity/helper.cpp
        entt/entity/organizer.cpp
        entt/entity/reactive_mixin.cpp
        entt/entity/registry.cpp
        entt/entity/runtime_view.cpp
        entt/entity/sigh_mixin.cpp
        entt/entity/snapshot.cpp
        entt/entity/sparse_set.cpp
        entt/entity/storage.cpp
        entt/entity/storage_entity.cpp
        entt/entity/storage_no_instance.cpp
        entt/entity/storage_utility.cpp
        entt/entity/view.cpp
)

SETUP_BASIC_TEST(
    NAME entity_no_mixin
    SOURCES
        entt/entity/storage_utility.cpp
    DEFS ENTT_NO_MIXIN
)

# Test graph

SETUP_BASIC_TEST(
    NAME graph
    SOURCES
        entt/graph/adjacency_matrix.cpp
        entt/graph/dot.cpp
        entt/graph/flow.cpp
)

# Test locator

SETUP_BASIC_TEST(
    NAME locator
    SOURCES entt/locator/locator.cpp
)

# Test meta

SETUP_BASIC_TEST(
    NAME meta
    SOURCES
        entt/meta/meta_any.cpp
        entt/meta/meta_base.cpp
        entt/meta/meta_container.cpp
        entt/meta/meta_context.cpp
        entt/meta/meta_conv.cpp
        entt/meta/meta_ctor.cpp
        entt/meta/meta_custom.cpp
        entt/meta/meta_data.cpp
        entt/meta/meta_factory.cpp
        entt/meta/meta_func.cpp
        entt/meta/meta_handle.cpp
        entt/meta/meta_pointer.cpp
        entt/meta/meta_range.cpp
        entt/meta/meta_template.cpp
        entt/meta/meta_type.cpp
        entt/meta/meta_utility.cpp
)

# Test poly

SETUP_BASIC_TEST(
    NAME poly
    SOURCES entt/poly/poly.cpp
)

# Test process

SETUP_BASIC_TEST(
    NAME process
    SOURCES
        entt/process/process.cpp
        entt/process/scheduler.cpp
)

# Test resource

SETUP_BASIC_TEST(
    NAME resource
    SOURCES
        entt/resource/resource.cpp
        entt/resource/resource_cache.cpp
        entt/resource/resource_loader.cpp
)

# Test signal

SETUP_BASIC_TEST(
    NAME signal
    SOURCES
        entt/signal/delegate.cpp
        entt/signal/dispatcher.cpp
        entt/signal/emitter.cpp
        entt/signal/sigh.cpp
)

# Test stl

SETUP_BASIC_TEST(
    NAME stl
    SOURCES
        entt/stl/functional.cpp
        entt/stl/memory.cpp
    DEFS ENTT_USE_STL
)