public void MissingSwitchesWhenAllSuppliedIsCorrect()
{
CmdFlag[] allowedFlags = { new CmdFlag("i", true), new CmdFlag("o", true), new CmdFlag("v", false) };
CmdLine cmd = new CmdLine(allowedFlags);
string[] args = { @"-ie:\data\dl\test.txt", @"-oe:\data\dl\test.out" };
bool success = cmd.ProcessCmdLine(args); // parse the command line
Assert.IsTrue(success, "success is false");
var switches = cmd.GetMissingSwitchesRequired().ToArray();
Assert.AreEqual(0, switches.Length, "switches has elements");
}