void accept(RequestParam rp);
    }

    @Mock
    EnumConsumer consumer;

    @Test
    @DisplayName("Enum value can be passed to collaborators without side effects")
    void enumUsedWithCollaboratorHasNoSideEffects() {
        // Arrange: pick a value and a mocked consumer
        RequestParam rp = RequestParam.NO_RETRY;

        // Act: pass to the collaborator
        consumer.accept(rp);