public void AdvanceShouldRemoveCharacter() { var source = new SourceProgram("Begin"); for (int i = 0; i < 5; i++) { source.Advance(); } Assert.AreEqual('\0', source.Inspect()); }
public void AdvanceOnEmptyShouldFail() { var source = new SourceProgram(string.Empty); Assert.Throws <InvalidOperationException>(() => source.Advance()); }