public void GenerateExitCodesTest()
{
// No exit codes have been defined.
var parser = new CmdLineParser <TestCmdLineObj>();
var results = parser.Parse(new string[] { });
parser.Options.ExitCodes = null;
var generator = new HelpGenerator(results);
var help = generator.GetExitCodesDisplay();
Assert.AreEqual("", help);
// Verify the parser can find the ExitCodes enum and InvalidArgs value.
parser = new CmdLineParser <TestCmdLineObj>();
results = parser.Parse(new string[] { });
generator = new HelpGenerator(results);
help = generator.GetExitCodesDisplay();
Assert.AreEqual(" 0 = Success!!!\r\n1234 = Failed :'(\r\n", help);
Assert.AreEqual((int)ExitCodes.InvalidArgs, parser.Options.InvalidArgsExitCode);
Assert.IsNull(parser.Options.FatalErrorExitCode);
}