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# This test is slow with OpenCL or the OpenCL DPC++ SYCL back end so
# label it as SLOW_TEST always. However when both those cases have
# gone, it no longer needs this annotation.
gmx_add_gtest_executable(fft-test HARDWARE_DETECTION
    GPU_CPP_SOURCE_FILES
        fft.cpp
    )
gmx_register_gtest_test(FFTUnitTests fft-test SLOW_TEST QUICK_GPU_TEST)
target_link_libraries(
    fft-test PRIVATE
        fft
        gpu_utils
        testutils
        utility
)

if(GMX_USE_Heffte OR GMX_USE_cuFFTMp)
gmx_add_mpi_unit_test(FFTMpiUnitTests fft-mpi-test 4 HARDWARE_DETECTION
    GPU_CPP_SOURCE_FILES
        fft_mpi.cpp
        )
target_link_libraries(fft-mpi-test PRIVATE fft)
endif()

if (TARGET fft-mpi-test)
    target_link_libraries(
        fft-mpi-test PRIVATE
            fft
            gpu_utils
            testutils
            utility
    )
endif ()
