make sure we compile and link against mpi_stubs when BUILD_MPI is disabled

set(TEST_INPUT_FOLDER ${CMAKE_CURRENT_SOURCE_DIR}/tests)

add_library(style_tests STATIC yaml_writer.cpp error_stats.cpp test_config_reader.cpp test_main.cpp)

target_compile_definitions(style_tests PRIVATE TEST_INPUT_FOLDER=${TEST_INPUT_FOLDER})

target_link_libraries(style_tests PUBLIC GTest::GTest GTest::GMock MPI::MPI_CXX Yaml::Yaml)

target_link_libraries(style_tests PUBLIC GTest::GTest GTest::GMock Yaml::Yaml)

if(BUILD_MPI)

  target_link_libraries(style_tests PUBLIC MPI::MPI_CXX)

else()

  target_link_libraries(style_tests PUBLIC mpi_stubs)

endif()

# pair style tester

add_executable(pair_style pair_style.cpp)