public async Task ShouldExecuteCommandButNotReplyIfShouldNotReplyImmediately(
                string content,
                Snowflake userId,
                Snowflake channelId,
                UserId identityUserId,
                [Frozen] Command command,
                [Frozen] ExecuteCommandResponse executeCommandResponse,
                [Frozen, Substitute] IMessageEmitter emitter,
                [Frozen, Substitute] IBrighidCommandsService commandsClient,
                [Frozen, Substitute] IDiscordChannelClient channelClient,
                [Frozen, Substitute] IUserService userService,
                [Target] MessageCreateEventController controller
                )
            {
                var cancellationToken = new CancellationToken(false);
                var author            = new User {
                    Id = userId
                };
                var message = new Message {
                    Content = content, Author = author, ChannelId = channelId
                };
                var @event = new MessageCreateEvent {
                    Message = message
                };

                executeCommandResponse.ReplyImmediately = false;
                userService.GetIdentityServiceUserId(Any <User>(), Any <CancellationToken>()).Returns(identityUserId);
                userService.IsUserRegistered(Any <User>(), Any <CancellationToken>()).Returns(true);

                await controller.Handle(@event, cancellationToken);

                await channelClient.DidNotReceive().CreateMessage(Is(channelId), Is <CreateMessagePayload>(payload => payload.Content == executeCommandResponse.Response), Is(cancellationToken));
            }
            public async Task ShouldNotSendGreetingToUserViaDmsIfNotRegisteredAndWasNotMentioned(
                string content,
                Snowflake userId,
                Snowflake botId,
                Snowflake channelId,
                [Frozen] Channel channel,
                [Frozen] AdapterOptions options,
                [Frozen] IStringLocalizer <Strings> strings,
                [Frozen, Substitute] IDiscordUserClient userClient,
                [Frozen, Substitute] IDiscordChannelClient channelClient,
                [Frozen, Substitute] IGatewayService gateway,
                [Frozen, Substitute] IMessageEmitter emitter,
                [Frozen, Substitute] IUserService userService,
                [Target] MessageCreateEventController controller
                )
            {
                var cancellationToken = new CancellationToken(false);
                var author            = new User {
                    Id = userId
                };
                var message = new Message {
                    Content = content, Author = author, ChannelId = channelId, Mentions = Array.Empty <UserMention>()
                };
                var @event = new MessageCreateEvent {
                    Message = message
                };

                gateway.BotId = botId;
                userService.IsUserRegistered(Any <User>(), Any <CancellationToken>()).Returns(false);

                await controller.Handle(@event, cancellationToken);

                await userClient.DidNotReceive().CreateDirectMessageChannel(Is(userId), Is(cancellationToken));

                await channelClient.DidNotReceive().CreateMessage(Is(channel.Id), Is <CreateMessagePayload>(payload => payload.Content == strings["RegistrationGreeting", options.RegistrationUrl] !), Is(cancellationToken));
            }