public async void Create_NoErrorsOccurred_ShouldReturnResponse()
        {
            var mock = new ServiceMockFacade <IEventStudentService, IEventStudentRepository>();

            var model = new ApiEventStudentServerRequestModel();

            mock.RepositoryMock.Setup(x => x.Create(It.IsAny <EventStudent>())).Returns(Task.FromResult(new EventStudent()));
            var service = new EventStudentService(mock.LoggerMock.Object,
                                                  mock.MediatorMock.Object,
                                                  mock.RepositoryMock.Object,
                                                  mock.ModelValidatorMockFactory.EventStudentModelValidatorMock.Object,
                                                  mock.DALMapperMockFactory.DALEventStudentMapperMock);

            CreateResponse <ApiEventStudentServerResponseModel> response = await service.Create(model);

            response.Should().NotBeNull();
            response.Success.Should().BeTrue();
            mock.ModelValidatorMockFactory.EventStudentModelValidatorMock.Verify(x => x.ValidateCreateAsync(It.IsAny <ApiEventStudentServerRequestModel>()));
            mock.RepositoryMock.Verify(x => x.Create(It.IsAny <EventStudent>()));
            mock.MediatorMock.Verify(x => x.Publish(It.IsAny <EventStudentCreatedNotification>(), It.IsAny <CancellationToken>()));
        }
        public async void Create_ErrorsOccurred_ShouldReturnErrorResponse()
        {
            var mock          = new ServiceMockFacade <IEventStudentService, IEventStudentRepository>();
            var model         = new ApiEventStudentServerRequestModel();
            var validatorMock = new Mock <IApiEventStudentServerRequestModelValidator>();

            validatorMock.Setup(x => x.ValidateCreateAsync(It.IsAny <ApiEventStudentServerRequestModel>())).Returns(Task.FromResult(new FluentValidation.Results.ValidationResult(new List <ValidationFailure>()
            {
                new ValidationFailure("text", "test")
            })));
            var service = new EventStudentService(mock.LoggerMock.Object,
                                                  mock.MediatorMock.Object,
                                                  mock.RepositoryMock.Object,
                                                  validatorMock.Object,
                                                  mock.DALMapperMockFactory.DALEventStudentMapperMock);

            CreateResponse <ApiEventStudentServerResponseModel> response = await service.Create(model);

            response.Should().NotBeNull();
            response.Success.Should().BeFalse();
            validatorMock.Verify(x => x.ValidateCreateAsync(It.IsAny <ApiEventStudentServerRequestModel>()));
            mock.MediatorMock.Verify(x => x.Publish(It.IsAny <EventStudentCreatedNotification>(), It.IsAny <CancellationToken>()), Times.Never());
        }