how to unit test asp.net core application with constructor dependency injection

Question

I have a asp.net core application that uses dependency injection defined in the startup.cs class of the application:

    public void ConfigureServices(ISer         


        

Answer 1

Why would you want to inject those in a test class? You would usually test the MatchController, for example, by using a tool like RhinoMocks to create stubs or mocks. Here's an example using that and MSTest, from which you can extrapolate:

[TestClass]
public class MatchControllerTests
{
    private readonly MatchController _sut;
    private readonly IMatchService _matchService;

    public MatchControllerTests()
    {
        _matchService = MockRepository.GenerateMock();
        _sut = new ProductController(_matchService);
    }

    [TestMethod]
    public void DoSomething_WithCertainParameters_ShouldDoSomething()
    {
        _matchService
               .Expect(x => x.GetMatches(Arg.Is.Anything))
               .Return(new []{new Match()});

        _sut.DoSomething();

        _matchService.AssertWasCalled(x => x.GetMatches(Arg.Is.Anything);
    }