@Test
public void multIdentityDelegatesToFieldMultiplication() {

    final MkMultiplication<Object> mult = new MkMultiplication<>(new Object());
    final SpyField<Object> field = new SpyField<>(
        new MkField<>(new Object(), mult)
    );
    new MultIdentity<>().value(field);
    MatcherAssert.assertThat(
        field.calls().multiplicationed(), Matchers.is(true)
    );
    MatcherAssert.assertThat(
        mult.neutraled(), Matchers.is(true)
    );
}