goodwill impairment review audit procedure

It's illustrating that in AAA as opposed to AA there is a "bigger picture" and things shouldn't be looked at in isolation - there will often be opportunities to see a linkage to something else. In this question - and DO state it so I don't have to find it (!) - the main issue concerned the impairment of goodwill. The point is just a more specific point/variation on the first point - are the assumptions used in any value-in-use calculations consistent with the assessment of the going concern basis? If no material uncertainty - then no issue. But if there is material uncertainty does that have implications for growth? And, if so, has that been reflected in the impairment testing?