C#•9mo ago

✅ xUnit | Repository not saving to database

Hello, so i started writing tests for my web api. Issue is that for whatever reason when i call the route, in test, with correct data, it doesnt seem to be saving it. It does save when I call the route normally via SwaggerUi. I tried mocking the save method in repositoey but no luck with that. Any help would be appricieted, thanks in advance. (Will post rest of related code in next message) CustomWebAppFactory

protected override void ConfigureWebHost(IWebHostBuilder builder)
        {
            base.ConfigureWebHost(builder);

            builder.ConfigureTestServices(services =>
            {
                var descriptor = services.SingleOrDefault(d => d.ServiceType == typeof(DbContextOptions<DataContext>));
                if (descriptor != null) services.Remove(descriptor);

                services.AddDbContext<DataContext>(o => o.UseInMemoryDatabase("InMemoryPayments"));

                var sp = services.BuildServiceProvider();
                using (var scope = sp.CreateScope())
                using (var appContext = scope.ServiceProvider.GetRequiredService<DataContext>())
                {

                    try
                    {
                        appContext.Database.EnsureCreated();
                  
                    }
                    catch (Exception ex)
                    {
                        throw;
                    }
                }

                services.AddSingleton(PaymentDataRepository.Object);
            });
        }

protected override void ConfigureWebHost(IWebHostBuilder builder)
        {
            base.ConfigureWebHost(builder);

            builder.ConfigureTestServices(services =>
            {
                var descriptor = services.SingleOrDefault(d => d.ServiceType == typeof(DbContextOptions<DataContext>));
                if (descriptor != null) services.Remove(descriptor);

                services.AddDbContext<DataContext>(o => o.UseInMemoryDatabase("InMemoryPayments"));

                var sp = services.BuildServiceProvider();
                using (var scope = sp.CreateScope())
                using (var appContext = scope.ServiceProvider.GetRequiredService<DataContext>())
                {

                    try
                    {
                        appContext.Database.EnsureCreated();
                  
                    }
                    catch (Exception ex)
                    {
                        throw;
                    }
                }

                services.AddSingleton(PaymentDataRepository.Object);
            });
        }

35 Replies

Haqz•9mo ago

Controller & Service & Repository

//Controller
[HttpPost("create")]
        public ActionResult<PaymentData> CreateStandardPayment([FromBody] PaymentData paymentData)
        {
            var result = _standardPaymentService.CreatePayment(paymentData);
            return Created(nameof(CreateStandardPayment), result);
        }
//Service
public PaymentData CreatePayment(PaymentData paymentData)
        {
            var result = _paymentDataRepository.Add(paymentData);

            return result;
        }
//Repository
public PaymentData Add(PaymentData paymentData)
        {
            var payment = _dataContext.Add(paymentData);
            _dataContext.SaveChanges();
            return paymentData;
        }

//Controller
[HttpPost("create")]
        public ActionResult<PaymentData> CreateStandardPayment([FromBody] PaymentData paymentData)
        {
            var result = _standardPaymentService.CreatePayment(paymentData);
            return Created(nameof(CreateStandardPayment), result);
        }
//Service
public PaymentData CreatePayment(PaymentData paymentData)
        {
            var result = _paymentDataRepository.Add(paymentData);

            return result;
        }
//Repository
public PaymentData Add(PaymentData paymentData)
        {
            var payment = _dataContext.Add(paymentData);
            _dataContext.SaveChanges();
            return paymentData;
        }

And finally Test

private CustomWebAppFactory _factory;
        private HttpClient _client;
        private readonly ITestOutputHelper output;
        private PaymentData PaymentDataPass;
        private string PaymentDataFail;

        public StandardPaymentController(ITestOutputHelper output)
        {
            _factory = new CustomWebAppFactory();
            _client = _factory.CreateClient();
            this.output = output;
            PaymentDataPass = new PaymentData
            {
                Hash = Guid.NewGuid().ToString(),
                RelatedHash = Guid.NewGuid().ToString(),
                Sum = 1000,
                MappedStatus = 0
            };
            PaymentDataFail = "{\"Hash\":1231,\"Sum\":-1000,\"RelatedHash\":1552512512,\"MappedStatus\":\"test\"}";


        }

        [Fact]
        public async void AddNewStandardPayment_Pass()
        {
            // Arrange

            var userContextMock = new Mock<DataContext>();
            userContextMock.Setup(_ => _.PaymentDatas.Add(It.IsAny<PaymentData>())).Returns((EntityEntry<PaymentData> paymentData) => paymentData);
            
            var payload = JsonConvert.SerializeObject(this.PaymentDataPass);
            var data = new StringContent(payload, Encoding.UTF8, "application/json");
            var response = await _client.PostAsync("/standard/create", data);
            var responseContent = await response.Content.ReadAsStringAsync();
            var test = JsonConvert.DeserializeObject<PaymentData>(await response.Content.ReadAsStringAsync());
            output.WriteLine(response.ToString());
            Assert.Equal(System.Net.HttpStatusCode.Created, response.StatusCode);
            Assert.Equal(payload, responseContent);

        }

private CustomWebAppFactory _factory;
        private HttpClient _client;
        private readonly ITestOutputHelper output;
        private PaymentData PaymentDataPass;
        private string PaymentDataFail;

        public StandardPaymentController(ITestOutputHelper output)
        {
            _factory = new CustomWebAppFactory();
            _client = _factory.CreateClient();
            this.output = output;
            PaymentDataPass = new PaymentData
            {
                Hash = Guid.NewGuid().ToString(),
                RelatedHash = Guid.NewGuid().ToString(),
                Sum = 1000,
                MappedStatus = 0
            };
            PaymentDataFail = "{\"Hash\":1231,\"Sum\":-1000,\"RelatedHash\":1552512512,\"MappedStatus\":\"test\"}";


        }

        [Fact]
        public async void AddNewStandardPayment_Pass()
        {
            // Arrange

            var userContextMock = new Mock<DataContext>();
            userContextMock.Setup(_ => _.PaymentDatas.Add(It.IsAny<PaymentData>())).Returns((EntityEntry<PaymentData> paymentData) => paymentData);
            
            var payload = JsonConvert.SerializeObject(this.PaymentDataPass);
            var data = new StringContent(payload, Encoding.UTF8, "application/json");
            var response = await _client.PostAsync("/standard/create", data);
            var responseContent = await response.Content.ReadAsStringAsync();
            var test = JsonConvert.DeserializeObject<PaymentData>(await response.Content.ReadAsStringAsync());
            output.WriteLine(response.ToString());
            Assert.Equal(System.Net.HttpStatusCode.Created, response.StatusCode);
            Assert.Equal(payload, responseContent);

        }

Unknown User•9mo ago

Message Not Public

Pobiega•9mo ago

sqlite would be easy to set up and test with

Haqz•9mo ago

Used SQLite as well, same result But will check on proper database

Pobiega•9mo ago

sqlite is proper enough

Unknown User•9mo ago

Message Not Public

Pobiega•9mo ago

so uhm you mock the context in your test

Unknown User•9mo ago

Message Not Public

Pobiega•9mo ago

oh, but you never seem to call or use that mock. Okay.

Haqz•9mo ago

uh wait i might've copied old code Ok no, it's the proper one, also with proper database it's same thing

Info: 
Assert.Equal() Failure: Strings differ
           ↓ (pos 0)
Expected: "{"Id":0,"Hash":"dc9f8efb-0f46-4d66-8403-e"···
Actual:   ""

  Stack trace: 
StandardPaymentController.AddNewStandardPayment_Pass() wiersz 52
<>c.<ThrowAsync>b__128_0(Object state)

  Standard output: 
StatusCode: 201, ReasonPhrase: 'Created', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Location: CreateStandardPayment
}

Info: 
Assert.Equal() Failure: Strings differ
           ↓ (pos 0)
Expected: "{"Id":0,"Hash":"dc9f8efb-0f46-4d66-8403-e"···
Actual:   ""

  Stack trace: 
StandardPaymentController.AddNewStandardPayment_Pass() wiersz 52
<>c.<ThrowAsync>b__128_0(Object state)

  Standard output: 
StatusCode: 201, ReasonPhrase: 'Created', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Location: CreateStandardPayment
}

Pobiega•9mo ago

and if you debug the test with breakpoints in your controller, it hits? just to be sure that it invokes correctly and passes the middleware

Haqz•9mo ago

It hits the controller and the service

Pobiega•9mo ago

great

Haqz•9mo ago

But when in repository i return what is passed down to the function, it doesnt return it It's shown in the code i sent

Pobiega•9mo ago

public PaymentData Add(PaymentData paymentData)
        {
            var payment = _dataContext.Add(paymentData);
            _dataContext.SaveChanges();
            return paymentData;
        }

public PaymentData Add(PaymentData paymentData)
        {
            var payment = _dataContext.Add(paymentData);
            _dataContext.SaveChanges();
            return paymentData;
        }

this part? if you put a breakpoint here, does paymentData look reasonable before and after the savechanges?

Haqz•9mo ago

Will check, give me second Interesting, it seems like it doesnt even want to go inside of the function, whei put breakpoint on _dataContext.SaveChanges(); the test continued, but when i put breakpoint on var result = _paymentDataRepository.Add(paymentData); in service it stopped normally 🤔 Oh i forgot to add this as well:

public Mock<IPaymentDataRepository> PaymentDataRepository;
        public CustomWebAppFactory() 
        {
            PaymentDataRepository = new Mock<IPaymentDataRepository>();
        }

public Mock<IPaymentDataRepository> PaymentDataRepository;
        public CustomWebAppFactory() 
        {
            PaymentDataRepository = new Mock<IPaymentDataRepository>();
        }

This is inside CustomWebAppFactory May this change anything?

Pobiega•9mo ago

If its actually used anywhere, yes but you seem to be mixing unit testing with mocks and WAF testing I would not expect any mocks while using WAF

Haqz•9mo ago

I might be 😅 It's first time when i write WebApi in ASP.Net, same with testing in c# For curiosity sake, what's WAF?

Pobiega•9mo ago

WepApplicationFactory

Haqz•9mo ago

Oh oke

Pobiega•9mo ago

its what you use to "spin up" a backend in memory and honestly this is great end to end testing of your backend

Haqz•9mo ago

Okey, so i deleted the last two lines i sent and it's actually working with proper database

Pobiega•9mo ago

the only way to make it better is to use something like TestContainers to run against a real database

Haqz•9mo ago

Will try now with sqlite

Pobiega•9mo ago

cool

Haqz•9mo ago

Damn it works Thanks a lot

Pobiega•9mo ago

right, so dont mock the parts you want to actually test 😄

Haqz•9mo ago

Will keep it mind

Pobiega•9mo ago

👍 If you are done with this thread, feel free to $close it

MODiX•9mo ago

Use the /close command to mark a forum thread as answered

Haqz•9mo ago

I guess having someone to explain the problem is helpful after all :D

Pobiega•9mo ago

you did good thou you asked in a proper way and provided more information when asked, and fast too

Haqz•9mo ago

Aint the first time having some problems

Pobiega•9mo ago

you get 10/10 in asking for help

Haqz•9mo ago

And you did 10/10 helping me Till next time :p

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✅ xUnit | Repository not saving to database