public async Task InvokesDeleteActivityAndTaskSignupsAsyncWithCorrectActivitySignupId()
        {
            var message = new DeleteActivityAndTaskSignupsCommandAsync { ActivitySignupId = 1 };
            var dataAccess = new Mock<IAllReadyDataAccess>();
            var sut = new DeleteActivityAndTaskSignupsCommandHandlerAsync(dataAccess.Object);
            await sut.Handle(message);

            dataAccess.Verify(x => x.DeleteActivityAndTaskSignupsAsync(message.ActivitySignupId));
        }
        public async Task InvokesDeleteActivityAndTaskSignupsAsyncWithCorrectActivitySignupId()
        {
            var message = new DeleteActivityAndTaskSignupsCommandAsync {
                ActivitySignupId = 1
            };
            var dataAccess = new Mock <IAllReadyDataAccess>();
            var sut        = new DeleteActivityAndTaskSignupsCommandHandlerAsync(dataAccess.Object);
            await sut.Handle(message);

            dataAccess.Verify(x => x.DeleteActivityAndTaskSignupsAsync(message.ActivitySignupId));
        }