public void CanFindLastAt()
{
var testValue = "FooBarFooBar";
var findChar = "F";
var expectedIndex = 6;
var sv = new StringValue(testValue);
//Case Sensitive
Assert.AreEqual(expectedIndex, sv.FindLastAt(findChar, 8));
//Case Insensitive
Assert.AreEqual(expectedIndex, sv.FindLastAt(findChar.ToLower(), 8));
}