def test_BSplineDeformableRegistration_outputs():
    output_map = dict(outputtransform=dict(),
    outputwarp=dict(),
    resampledmovingfilename=dict(),
    )
    outputs = BSplineDeformableRegistration.output_spec()

    for key, metadata in output_map.items():
        for metakey, value in metadata.items():
            yield assert_equal, getattr(outputs.traits()[key], metakey), value