How can I create and populate my mock classes with Autofixture?

Question

Currently I\'m using EF6 to implement my repositories inside a UnitOfWork. I also have created an In-Memory mock implementations (MockUnitOfWork & MockRepository) so that I

Answer 1

Yes, this is exactly what it's designed to do. See the example below. I'm using Mock instead of NSubstitute, because I'm not familiar with NSubstitute. You'll just have to pass another customization, and use NSubstitute syntax in setups.

[SetUp]
public  void SetUp()
{
    // this will make AutoFixture create mocks automatically for all dependencies
    _fixture = new Fixture()
         .Customize(new AutoMoqCustomization()); 

    // whenever AutoFixture needs IUnitOfWork it will use the same  mock object
    // (something like a singleton scope in IOC container)
    _fixture.Freeze>(); 

    // suppose YourSystemUnderTest takes IUnitOfWork as dependency,
    // it'll get the one frozen the line above
    _sut = _fixture.Create(); 
}

[Test]
public void SomeTest()
{
    var id = _fixture.Create