public void ShouldParseLongSwitchWithValue()
{
var args = new [] { "--number", "123" };
var parser = new OptionsParser();
parser.WithOption<int>("number");
parser.Parse(args);
Assert.AreEqual(1, parser.ParsedOptions.Count());
Assert.AreEqual("number", parser.ParsedOptions.First().Flag.LongName);
Assert.AreEqual(123, parser.ParsedOptions.First().Value);
}