[Fact] // async Task<bool> StartRent(string id, byte[] fileContent) public async void StartRent_ForGivenOwnerId_ShouldSuccessfullyInitiateRentAndReturnTrue() { // Arrange var country = CountryCreator.Create(); var city = CityCreator.Create(country.Id); var home = HomeCreator.CreateAny(city.Id); var image = ImageCreator.CreateForModel(); await this.Context.Countries.AddAsync(country); await this.Context.Cities.AddAsync(city); await this.Context.Homes.AddAsync(home); await this.Context.CloudImages.AddAsync(image); var request = RequestCreator.Create(home); await this.Context.Requests.AddAsync(request); await this.Context.SaveChangesAsync(); var approvedRequest = RequestCreator.CreateRentApproved(home, request.User, request.Id); var user = request.User; this.UserManager .Setup(u => u.FindByIdAsync(user.Id)) .Returns(Task.FromResult(user)); await this.UserManager.Object .AddToRoleAsync(user, "Tenant"); var requestService = new Mock <IOwnerRequestService>(); requestService .Setup(x => x.ApproveRequestAsync(request.Id)) .Returns(Task.FromResult(approvedRequest)); var listingService = new Mock <IOwnerListingService>(); listingService .Setup(x => x.ChangeHomeStatusAsync(approvedRequest)) .Returns(Task.FromResult(approvedRequest.HomeId)); var rental = new Rental { Id = 1, RentDate = DateTime.UtcNow, HomeId = home.Id, TenantId = user.Id, }; var rentalServiceMock = new Mock <IOwnerRentalService>(); rentalServiceMock.Setup(y => y.CreateRental(home.Id, user.Id)) .Returns(Task.FromResult(rental)); var contractService = new Mock <IOwnerContractService>(); contractService .Setup(x => x.CreateRentalContractAsync(new byte[1024], request.User, rental)) .Returns(Task.FromResult(true)); var service = new OwnerRentalService(this.Context, requestService.Object, listingService.Object, contractService.Object, this.UserManager.Object); // Act var result = await service.StartRent(request.Id, new byte[1024]); var rentalInfo = await this.Context.Rentals.Where(r => r.Home.Id == home.Id).FirstOrDefaultAsync(); var changedUser = await this.Context.Users.Where(u => u.Id == user.Id).FirstOrDefaultAsync(); // Assert result.Should().BeTrue(); rentalInfo.TenantId.Should().Equals(user.Id); changedUser.Rentals.Count().Should().Be(1); }