public void XCommandSystemTest2()
{
var execInfo = Utils.GetExecInfo("exact");
var commandSystem = new XCommandSystem();
var group = commandSystem.RootCommand;
var o1 = new OverloadedFunctionCommand();
o1.AddCommand(new FunctionCommand(new Action <int>((_) => { })));
o1.AddCommand(new FunctionCommand(new Action <long>((_) => { })));
group.AddCommand("one", o1);
group.AddCommand("two", new FunctionCommand(new Action <StringSplitOptions>((_) => { })));
var o2 = new CommandGroup();
o2.AddCommand("a", new FunctionCommand(new Action(() => { })));
o2.AddCommand("b", new FunctionCommand(new Action(() => { })));
group.AddCommand("three", o2);
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!one"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!one \"\""));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!one (!print \"\")"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!one string"));
Assert.DoesNotThrow(() => commandSystem.ExecuteCommand(execInfo, "!one 42"));
Assert.DoesNotThrow(() => commandSystem.ExecuteCommand(execInfo, "!one 4200000000000"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!two"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!two \"\""));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!two (!print \"\")"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!two 42"));
Assert.DoesNotThrow(() => commandSystem.ExecuteCommand(execInfo, "!two None"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!three"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!three \"\""));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!three (!print \"\")"));
Assert.Throws <CommandException>(() => commandSystem.ExecuteCommand(execInfo, "!three c"));
Assert.DoesNotThrow(() => commandSystem.ExecuteCommand(execInfo, "!three a"));
Assert.DoesNotThrow(() => commandSystem.ExecuteCommand(execInfo, "!three b"));
}