# Download and unpack googletest at configure time
configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
# Call CMake to download and Google Test
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
        RESULT_VARIABLE result
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download)
if(result)
    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif()
# Build the downloaded google test
execute_process(COMMAND ${CMAKE_COMMAND} --build .
        RESULT_VARIABLE result
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download)
if(result)
    message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif()

# Prevent overriding the parent project's compiler/linker
# settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
# Prevent installation of GTest with your project
set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
set(INSTALL_GMOCK OFF CACHE BOOL "" FORCE)

# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
        ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
        EXCLUDE_FROM_ALL)

# Add aliases for GTest and GMock libraries
if(NOT TARGET GTest::GTest)
    add_library(GTest::GTest ALIAS gtest)
    add_library(GTest::Main ALIAS gtest_main)
endif()

if(NOT TARGET GTest::GMock)
    add_library(GMock::GMock ALIAS gmock)
    add_library(GMock::Main ALIAS gmock_main)
endif()
