We were being inconsistent in how we handled this, some tests skipping
while others using QVERIFY. It makes more sense to skip the tests, since
the problem is a missing pre-condition of the test, not the test itself
being bad or exposing real failures in the implementation.
Change-Id: I20eacfe12dbce0b0d926e48cbe2d2772819fa4a5
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>