Detect call to base class method using NSubstitute-CodePudding

I have a subclass that overrides a method:

public class Parent {
  public virtual string Foo(string s) {
    //...
  }
}

public class Child : Parent {
  public override string Foo(string s) {
    s = s   "123";
    return base.Foo(s);           // <---- how do I detect this call?
  }
}

I can test that the overridden method was called:

var mock = Substitute.ForPartsOf<Child>();
mock.Foo("abc");

mock.Received(1).Foo(Arg.Any<string>());

But how can I detect that the BASE method was called?

CodePudding user response：

As per @DavidTchepak's comment, this is a limitation of the underlying framework. Cannot be done, but one can redesign to avoid this issue.