void onUnavailableImage(final long correlationId, final long subscriptionRegistrationId)
    {
        final Subscription subscription = (Subscription)resourceByRegIdMap.get(subscriptionRegistrationId);
        if (null != subscription)
        {
            final Image image = subscription.removeImage(correlationId);
            if (null != image)
            {
                final UnavailableImageHandler handler = subscription.unavailableImageHandler();
                if (null != handler)
                {
                    notifyImageUnavailable(handler, image);
                }
            }
        }
    }
@Test
    void shouldIgnoreUnknownInactiveImage()
    {
        conductor.onUnavailableImage(CORRELATION_ID_2, SUBSCRIPTION_POSITION_REGISTRATION_ID);

        verify(logBuffersFactory, never()).map(anyString());
        verify(mockUnavailableImageHandler, never()).onUnavailableImage(any(Image.class));
    }