Unit test controller with IConfiguration using Moq and Mock setup returns null

Unit test controller with IConfiguration using Moq and Mock setup returns null

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Unit test controller with IConfiguration using Moq and Mock setup returns null
Tag : chash , By : Reiner
Date : November 26 2020, 03:04 PM

With these it helps This is more of a design issue wrapped in an XY problem.
Really should not be injecting IConfiguration. Based on how the configuration is using by the controller what you should have done was register the settings with the service collection in startup

AppSettings appSettings = Configuration.Get<AppSettingsModel>().AppSettings;



private readonly AppSettings appSettings = null;
public CarController(AppSettings appSettings , ICarPairingTable carPairingTable, ICarDealerSettingsTable settingsTable) {
    this.appSettings = appSettings;
    PairingTable = carPairingTable;
    DealerSettingsTable = settingsTable;

public async Task<ActionResult> Get(string id){
    string DealerId = await PairingTable.GetDealerId(id);
    if (string.IsNullOrEmpty(DealerId)) {
        var result = new ReturnResult {
            status = "Fail",
            data = "ID is invalid"
        return NotFound(result);

    SettingsInfo info = await DealerSettingsTable.GetSettingsInfo(DealerId);
    if (info == null) {
        var result = new ReturnResult {
            status = "Fail",
            data = "Not Found"
        return NotFound(result);
    var result = new ReturnResult {
        status = "Success",
        data = info
    return Ok(result);
public async Task Should_Return_Ok_ReturnRsult() {
    var id = "456";
    var dealerId = "123";
    SettingsInfo expected = new SettingsInfo() {
        DealerId = dealerId,

    var pairingMock = new Mock<ICarPairingTable>();
    pairingMock.Setup(p => p.GetDealerId(id)).ReturnsAsync(dealerId);

    var dealerSettingsMock = new Mock<ICarDealerSettingsTable>();
    dealerSettingsMock.Setup(p => p.GetSettingsInfo(dealerId)).ReturnsAsync(() => expected);

    CarController controller = new CarController(new AppSettings(),  pairingMock.Object, dealerSettingsMock.Object);

    var actionResult = await controller.Get(id);
    var actual = actionResult as OkObjectResult;

    //Assert (using FluentAssertions)



    var actualResult = actual.Value as ReturnResult;


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Unit Test on MVC 3 Controller returns null for results, but I can see them in Immediate Window

Tag : asp.net-mvc-3 , By : apple
Date : March 29 2020, 07:55 AM
this will help Had this problem before, you are not using the same versions of System.Web.Mvc in your projects. You must reference the same version of System.Web.Mvc both in your main project and unit test project.

Grails 2.3 controller method returns JSON gets null back in unit test

Tag : json , By : bikefixxer
Date : March 29 2020, 07:55 AM
To fix this issue render writes directly to the reponse - see here.
Try like this:
void "test that the controller can greet in JSON"() {

    response.text == '{"greeting":"Hey there"}'
    response.json.greeting == "Hey there"  //another option

Moq: Mock SetUp method only returns null during test

Tag : chash , By : Mark W
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You didn't set any behavior on the Add method of mockDbSet.
Add:(This line initialize the method to return the given person)
mockDbSet.Setup(x => x.Add(It.IsAny<Person>()))
         .Returns <Person>(p => p);
var mockDbSet = new Mock<DbSet<Person>>();
mockDbSet.Setup(x => x.Add(It.IsAny<Person>()))
         .Returns<Person>(p => p);

var mockContext = new Mock<IHiveTiesContext>();
mockContext.Setup(x => x.People)

Unit Test Mock Controller, C# Do I need to Mock HTTPContext? What methods do I mock?

Tag : chash , By : CrookedNumber
Date : March 29 2020, 07:55 AM
may help you .
Question: What methods am I supposed to be mocking and testing within the controller?
    public void SearchforAccount_ReturnSearchAccount()
        var mockAccountsManager = A.Fake<IAccountsManager>();
        var mockCallerInfoManager = A.Fake<ICallerInfoManager>();
        const string SearchTerm = "google"; // Use the passed in parameter in the CallTo setup

        //Define search parameter
        AccountRequest mockAccountRequest = new AccountRequest
            SearchTerm = SearchTerm

        List<Account> expected = new List<Account> { new Account() }; // What we expect to get back

        A.CallTo(() => mockAccountsManager.GetAllWithNameContaining(SearchTerm, A<string>.Ignored)).Returns(expected); // mock the call made in the controller

        using (var accountsController = new AccountController2(mockAccountsManager, mockCallerInfoManager))
            List<Account> returnedAccounts = accountsController.Search(mockAccountRequest);

            Assert.AreSame(expected, returnedAccounts);
public CallerInfo GetFrom(HttpRequest request)
    return ExtractCallerInfo(request.QueryString);

public CallerInfo GetFromHttpContext()
    return GetFrom(HttpContext.Current.Request);

Mock in unit test returns null at LINQ.Where

Tag : chash , By : Raghaw
Date : March 29 2020, 07:55 AM
it fixes the issue The Linq Where is working fine. The searchedBeam is being assigned null because of the attempt to cast from the mocked interface to the concrete type.
                          right here
Treatment searchedBeam = (Treatment)InputData.Treatments.
    Where(beam => beam.TimeStamp == sortingList[j + i * rangeOfBeams]).FirstOrDefault();
public override void Init() {

    // --- Create Plan Mock
    // some code here

    // --- Create Treatment Mock
    DateTime time1 = new DateTime(2000, 01, 01, 12, 00, 00);
    DateTime time2 = new DateTime(2000, 01, 01, 13, 00, 00);

    var treatMock1 = new Treatment {
        TimeStamp = time1
    var treatMock2 = new Treatment {
        TimeStamp = time2

    treatGroupMock1 = new Mock<ITreatmentGroup>();
    treatGroupMock1.Setup(_ => _.Treatments).Returns(new List<ITreatment>() { treatMock1, treatMock2 });
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