public async Task TestSetDisplaynameSimpleName() { var user = MockUser("User", twitchDisplayName: "user"); string newDisplayName = user.SimpleName.ToUpper(); CommandResult result = await _userCommands.SetDisplayName(new CommandContext(MockMessage(user), ImmutableList.Create(newDisplayName), _argsParser)); Assert.AreEqual( "you don't have any special characters in your name " + "and can therefore still change it in your twitch settings", result.Response); _userRepoMock.VerifyNoOtherCalls(); }