Я пытаюсь смоделировать HttpMessageHandler, чтобы протестировать класс с использованием HttpClient.
Кажется, что имитация работает, и результат хороший, но при проверке числа раз, когда метод SendAsunc вызывается имвозвращает 0 вместо 1 ...
Есть идеи почему?Я новичок в Moq и не знаю всех его тонкостей.
Метод испытаний
[TestMethod]
public void LoginTest_ShouldTrue()
{
// Setup the handler
var mockHandler = new Mock<HttpMessageHandler>(MockBehavior.Strict);
mockHandler.Protected()
// Setup the protected method to mock
.Setup<Task<HttpResponseMessage>>(
"SendAsync",
ItExpr.IsAny<HttpRequestMessage>(),
ItExpr.IsAny<CancellationToken>()
)
// prepare the expected response of the mocked http call
.ReturnsAsync(new HttpResponseMessage()
{
StatusCode = System.Net.HttpStatusCode.OK,
Content = new StringContent("You are connected as xxxxxxxxxxxxxxxx.")
})
.Verifiable();
// Use HttpClient with mocked HttpMessageHandler
var httpClient = new HttpClient(mockHandler.Object);
var objectToTest = new LoginApi(new Uri("https://test.com/"), ref httpClient);
// Perform test
var user = "test_user";
var pass = "test_password_123";
objectToTest.LoginAsync(user, pass).Result.Should().Be(true);
objectToTest.IsLoggedIn.Should().Be(true);
// Check the http call was as expected
var expectedUri = new Uri("https://test.com/cgi/session.pl");
var formVariables = new List<KeyValuePair<string, string>>(3);
formVariables.Add(new KeyValuePair<string, string>(".submit", "Sign+in"));
formVariables.Add(new KeyValuePair<string, string>("user_id", user));
formVariables.Add(new KeyValuePair<string, string>("password", pass));
var expectedContent = new FormUrlEncodedContent(formVariables);
mockHandler.Protected().Verify<Task<HttpResponseMessage>>(
"SendAsync",
Times.Exactly(1), // We expected a single external request
ItExpr.Is<HttpRequestMessage>(req =>
req.Method == HttpMethod.Post // We expected a POST request
&& req.RequestUri == expectedUri // to this uri
&& req.Content == expectedContent // with this content
),
ItExpr.IsAny<CancellationToken>()
);
}
Проверенный метод
public class LoginApi : ILoginApi
{
private readonly Uri baseUri;
private readonly HttpClient client;
public bool IsLoggedIn { get; protected set; }
public LoginApi(Uri baseUri, ref HttpClient client)
{
this.baseUri = baseUri;
this.client = client;
IsLoggedIn = false;
}
public async Task<bool> LoginAsync(string user, string pass)
{
var formVariables = new List<KeyValuePair<string, string>>(3);
formVariables.Add(new KeyValuePair<string, string>(".submit", "Sign+in"));
formVariables.Add(new KeyValuePair<string, string>("user_id", user));
formVariables.Add(new KeyValuePair<string, string>("password", pass));
var targetUri = new Uri(baseUri, string.Join('/', URLs.ServiceCgiSuffix, "session.pl"));
var res = await client.PostAsync(targetUri, new FormUrlEncodedContent(formVariables));
var content = await res.Content.ReadAsStringAsync();
IsLoggedIn = content.Contains("You are connected as");
return IsLoggedIn;
}
public async Task<bool> LogoutAsync()
{
var formVariables = new List<KeyValuePair<string, string>>(1);
formVariables.Add(new KeyValuePair<string, string>(".submit", "Sign-out"));
var targetUri = new Uri(baseUri, string.Join('/', URLs.ServiceCgiSuffix, "session.pl"));
var res = await client.PostAsync(targetUri, new FormUrlEncodedContent(formVariables));
var content = await res.Content.ReadAsStringAsync();
IsLoggedIn = !content.Contains("See you soon!");
return !IsLoggedIn;
}
}
Сведения об ошибке
StackTrace:
at Moq.Mock.VerifyCalls(Mock targetMock, InvocationShape expectation, LambdaExpression expression, Times times, String failMessage) in C:\projects\moq4\src\Moq\Mock.cs:line 414
at Moq.Mock.Verify[T,TResult](Mock`1 mock, Expression`1 expression, Times times, String failMessage) in C:\projects\moq4\src\Moq\Mock.cs:line 315
at Moq.Protected.ProtectedMock`1.Verify[TResult](String methodName, Times times, Object[] args) in C:\projects\moq4\src\Moq\Protected\ProtectedMock.cs:line 171
at OpenFoodFacts.Test.Login.LoginApiTest.LoginTest_ShouldTrue() in path\to\project\LoginApiTest.cs:line 56
Result message:
Test method OpenFoodFacts.Test.Login.LoginApiTest.LoginTest_ShouldTrue threw exception:
Moq.MockException:
Expected invocation on the mock exactly 1 times, but was 0 times:
mock => mock.SendAsync(
It.Is<HttpRequestMessage>(req => (req.Method == POST && req.RequestUri == https://test.com/cgi/session.pl) && req.Content == FormUrlEncodedContent),
It.IsAny<CancellationToken>())
Configured setups:
HttpMessageHandler mock => mock.SendAsync(It.IsAny<HttpRequestMessage>(), It.IsAny<CancellationToken>())
Performed invocations:
HttpMessageHandler.SendAsync(Method: POST, RequestUri: 'https://test.com/cgi/session.pl', Version: 2.0, Content: System.Net.Http.FormUrlEncodedContent, Headers:
{
Content-Type: application/x-www-form-urlencoded
}, CancellationToken)