public void SplitArgIntoPieces_CallMethod(string arg, string optionString, string filterString, string rangeString) { (string o, string f, string r) = CliUtils.SplitArgIntoPieces(arg); Assert.That(optionString, Is.EqualTo(o)); Assert.That(filterString, Is.EqualTo(f)); Assert.That(rangeString, Is.EqualTo(r)); }