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 ());
}
}
}