public async void Handle_GivenValidRegistrationDetails_ShouldSucceed()
{
// arrange
// 1. We need to store the user data somehow
var mockUserRepository = new Mock <IUserRepository>();
mockUserRepository
.Setup(repo => repo.Delete(It.IsAny <string>()))
.ReturnsAsync(new DTO.GatewayResponses.Repositories.DeleteUserResponse("", true));
// 2. The use case and star of this test
var useCase = new DeleteUserUseCase(mockUserRepository.Object);
// 3. The output port is the mechanism to pass response data from the use case to a Presenter
// for final preparation to deliver back to the UI/web page/api response etc.
var mockOutputPort = new Mock <IOutputPort <UseCaseResponseMessage> >();
mockOutputPort.Setup(outputPort => outputPort.Handle(It.IsAny <UseCaseResponseMessage>()));
// act
// 4. We need a request model to carry data into the use case from the upper layer (UI, Controller etc.)
var response = await useCase.Handle(new DeleteUserRequest("userName"), mockOutputPort.Object);
// assert
Assert.True(response);
mockUserRepository.VerifyAll();
mockOutputPort.VerifyAll();
}
public async Task Handle_NotExistingUser_PassesFailedResultToOutputPort()
{
// Arrange
var userId = Guid.NewGuid();
var deleteUserRequest = new DeleteUserRequest(userId);
_userRepositoryMock
.Setup(mock => mock.Get(userId))
.ReturnsAsync((User)null);
// Act
await _deleteUserUseCase.Handle(deleteUserRequest, _outputPortMock.Object);
// Assert
_userRepositoryMock.Verify(mock => mock.Delete(It.IsAny <User>()), Times.Never);
_outputPortMock.Verify(mock => mock.Handle(It.Is <Response <User> >(response => response.SuccessFul == false)), Times.Once);
_outputPortMock.Verify(mock => mock.Handle(It.Is <Response <User> >(response => response.SuccessFul)), Times.Never);
}
