public async Task GetAdressByIdShouldReturnOkIfFoundInDatabase() { // Arrange var addressId = 1; var address = new Address() { Id = addressId, Country = "Polska", City = "Sopot", Street = "Ciasna", BuildingNumber = "1", FlatNumber = "69", PostalCode = "80-765" }; mockRepo.Setup(x => x.Address).Returns(_addressRepoMock.Object); _addressRepoMock.Setup(x => x.GetAddressById(addressId)).ReturnsAsync(address); // Act var result = await _sut.GetAdressById(addressId); // Assert Assert.IsType <OkObjectResult>(result); Assert.Equal(1, address.Id); Assert.IsNotType <NotFoundResult>(result); }