Mocking generic methods in Moq without specifying T

Question

I have an interface with a method as follows:

public interface IRepo
{
    IA Reserve();
}

I would like to mock the clas

Answer 1

Simply do this:

[TestMethod]
public void ExampleTest()
{
  var mock = new Mock { DefaultValue = DefaultValue.Mock, };
  // no setups needed!

  ...
}

Since your mock does not have behavior Strict, it will be happy with calls that you haven't even set up. In that case a "default" is simply returned. Then

DefaultValue.Mock

ensures that this "default" is a new Mock<> of appropriate type, instead of just a null reference.

The limitation here is that you cannot control (e.g. make special setups on) the individual "sub-mocks" that are returned.