@Test
void mapFloat() {

    final ToFloat<Float> toFloat = f -> f;
    final ToFloatMapper<Float, ToFloat<Float>, FloatUnaryOperator> toFloatMapper =
            (ToFloatMapper<Float, ToFloat<Float>, FloatUnaryOperator>)
                    MapperUtil.mapFloat(toFloat, f -> f);
    assertEquals(MapperType.FLOAT_TO_FLOAT, toFloatMapper.mapperType());
}