I have tests of the form:
expect(ClassA).to receive(:method)
ClassB.perform
Rubocop would prefer if I refactored this to use have_received, which requires ClassA to be mocked. In other words, I need to set up:
allow(ClassA).to receive(:method)
ClassB.perform
expect(ClassA).not_to have_received(:method)
What's the point? Just following the Arrange Act Assert format?