@Test
public void delegatesActualValueForScalars() {

    final Decimal field = new Decimal();
    final SpyScalar<Double> scalar = new SpyScalar<>(new Scalar.Default<>(0.));
    field.actual(scalar);
    MatcherAssert.assertThat(
        "Expecting call to value method with field as parameter",
        scalar.field().isPresent() && scalar.field().get().equals(field)
    );
}