public void NormalUse() { Assert.AreEqual(StringHelpers.CenterAlignText("jos", 30), " jos "); Assert.AreEqual(StringHelpers.CenterAlignText("4jos", 30), " 4jos "); Assert.AreEqual(StringHelpers.CenterAlignText("4jos", 2), "4j"); Assert.AreEqual(StringHelpers.CenterAlignText(null, 2), " "); Assert.AreEqual(StringHelpers.CenterAlignText("", 2), " "); Assert.AreEqual(StringHelpers.CenterAlignText("a", 0), ""); Assert.ThrowsException <ArgumentOutOfRangeException>(() => { Assert.AreEqual(StringHelpers.CenterAlignText("", -2), null); }); }