public void ConsumeLetterSequence()
{
CharacterReader r = new CharacterReader("One &bar; qux");
Assert.AreEqual("One", r.ConsumeLetterSequence());
Assert.AreEqual(" &", r.ConsumeTo("bar;"));
Assert.AreEqual("bar", r.ConsumeLetterSequence());
Assert.AreEqual("; qux", r.ConsumeToEnd());
}
