public IEnumerable<TestCaseData> Should_DefineWeekend_WhenCalledOn_TestCaseSource()
{
yield return new TestCaseData(new DateTime(2012, 7, 23), false);
yield return new TestCaseData(new DateTime(2012, 7, 24), false);
yield return new TestCaseData(new DateTime(2012, 7, 25), false);
yield return new TestCaseData(new DateTime(2012, 7, 26), false);
yield return new TestCaseData(new DateTime(2012, 7, 27), false);
yield return new TestCaseData(new DateTime(2012, 7, 28), true);
yield return new TestCaseData(new DateTime(2012, 7, 29), true);
yield return new TestCaseData(new DateTime(2012, 7, 31), false);
yield return new TestCaseData(new DateTime(2012, 8, 3, 12, 0, 0), false);
}