public void IsSupportedThrowsExceptionWithNullTypeTest()
        {
            var target = new PostCodeValueGenerator();

            Action action = () => target.IsSupported(null, null, null);

            action.ShouldThrow<ArgumentNullException>();
        }
        public void IsSupportedTest(Type type, string referenceName, bool expected)
        {
            var target = new PostCodeValueGenerator();

            var actual = target.IsSupported(type, referenceName, null);

            actual.Should().Be(expected);
        }