Use more specific assertions for 'in' checks.
Review Request #6064 — Created July 4, 2014 and submitted
A lot of old code used
assertTrue(blah in blah)
, or variants on that,
which didn't tell you much if there was a failure. Nowadays, we have
assertIn
andassertNotIn
, which we can use instead. This switches our
tests to use these.
Unit tests pass.