public void Should_Be_Able_To_Retrieve_Specific_Argument()
 {
     var argMngr = new ArgumentManager(_argArray);
     var arg = argMngr.GetArgumentValue("-a");
     Assert.AreEqual("firstArg", arg);
 }
 public void Should_Be_Able_To_Retrieve_Null_If_Argument_Not_Found()
 {
     var argMngr = new ArgumentManager(_argArray);
     var arg = argMngr.GetArgumentValue("-unknown");
     Assert.IsNull(arg);
 }