Get instance of inner Interface created by AutoMoqData.

Hi,

I’m trying to get the instance of the the inner Mocked Interface created by AutoMoqData to setup the interface.

Is there a way to do something like this

[Theory, AutoMoqData]
public void Dummy(IFixture fixture, ComplexClassWithInnerInterface sut)
{
    fixture.GetInstance<IInnerInterfaceMockCreatedByAutoMoqData>().Setup(x => x.Method).Result(something);
 
    Assert.Equal(String.Empty, String.Empty);
}

Thanks

[zvirja]

Thanks @xlecoustillier for the great answer. Basically, I’d suggest to do the same as I’m constantly following this pattern in my tests.

But for 30 interfaces it’s pretty ugly to have them in method parameters.

Well, this argument looks a bit weird. Probably, it’s something wrong with the design of tested code if you need to configure 30 dependencies to make a scenario 😟 I’m 99% @ploeh would suggest you to review the code first before proceeding further, as per his advice it’s recommended to have max 3-4 dependencies 😅

So it seems impossible to get auto created mocks from the container of the fixture. They are not injected by default so if fixture had a GetInstance like method, it will not return anything for the auto created mocks.

I’m not 100% sure I understood the entire message clearly, but from what I got you are right. By default all the generated objects are transient and fixture doesn’t preserve them. If you wish to make the particular object a singleton, you should use the fixture.Freeze<>() API or [Frozen] attribute or any other suitable API. The existing default behavior was designed to cover the common scenarios and in most cases you don’t want to have the same object per type.

If you are still looking for the help from our side, please provide more exact requirement you have. Better, share enough code to demonstrate the current limitations and goal you would like to achieve - that will help to sync better 😉

Thanks.

[DeafLight]

In this case you’ll have to freeze the mock to ensure that the instance you generate will also be injected into the sut:

[Theory, AutoMoqData]
public void Dummy(
    IFixture fixture, 
    [Frozen]Mock<YourInnerInterface> innerInterfaceMock,
    ComplexClassWithInnerInterface sut)
{
    innerInterfaceMock.Setup(x => x.Method).Result(something);
    sut.DoSomething();
    Assert.Equal(String.Empty, String.Empty);
}

Be careful to always create the frozen mocks before the sut so that they already exist when the sut gets created and therefore get correctly injected.

See ploeh’sblog for reference.