public IEnumerable<TestCaseData> Should_ReturnStartOfBusinessWeek_WhenCalledOn_TestCaseSource()
{
// week is 9, 10, ..., 13, 14, 15 (Mon, Tue, ..., Fri, Sat, Sun) of July
yield return new TestCaseData(new DateTime(2012, 7, 14), new DateTime(2012, 7, 9));
yield return new TestCaseData(new DateTime(2012, 7, 13), new DateTime(2012, 7, 9));
yield return new TestCaseData(new DateTime(2012, 7, 10), new DateTime(2012, 7, 9));
yield return new TestCaseData(new DateTime(2012, 7, 9), new DateTime(2012, 7, 9));
yield return new TestCaseData(new DateTime(2012, 7, 15), new DateTime(2012, 7, 9));
yield return new TestCaseData(new DateTime(2012, 7, 16), new DateTime(2012, 7, 16));
yield return new TestCaseData(new DateTime(2012, 7, 8), new DateTime(2012, 7, 2));
}