public void Returns15IfValueIsasdfAndFallbackIs15()
            {
                var value = ValueRetrieval.GetInteger("asdf", 15);

                Assert.That(value, Is.EqualTo(15));
            }
            public void Returns1IfValueIs1()
            {
                var value = ValueRetrieval.GetInteger("1");

                Assert.That(value, Is.EqualTo(1));
            }
            public void Returns10IfValueIsNullAndFallbackIs10()
            {
                var value = ValueRetrieval.GetInteger(null, 10);

                Assert.That(value, Is.EqualTo(10));
            }
            public void ReturnsNullIfValueIsasdf()
            {
                var value = ValueRetrieval.GetInteger("asdf");

                Assert.That(value, Is.EqualTo(null));
            }