public void Should_Return_IntervalName_2011to2013()
{
SpanOfYears testInterval = new SpanOfYears(2011, 2013);
string testName = testInterval.ClassName();
Assert.AreEqual("2011to2013", testName);
}
public static string ClassNameFor(string classnamePrefix, SpanOfYears span)
{
string className = classnamePrefix + span.ClassName();
return(className);
}