public void GetLineFromCharIndexTest ()
		{
			using (MaskedTextBox mtb = new MaskedTextBox ()) {
				for (int i = -100; i < 100; i++) {
					Assert.AreEqual (0, mtb.GetLineFromCharIndex (i), "#A" + i.ToString ());
				}
				mtb.Text = "alñsdh gaph" + Environment.NewLine + "asldg";
				for (int i = -100; i < 100; i++) {
					Assert.AreEqual (0, mtb.GetLineFromCharIndex (i), "#B" + i.ToString ());
				}
			}
		}