Modify use of assertTrue(A in B)

Developers should use assertIn(A, B) instead of assertTrue(A in B ).

TrivialFix

Change-Id: Icb1f58f462f982d9c4b0795d1a7f010b08c9b387
2 files changed
tree: e806dddd6a84030790bff1bb39a388c09aa0b1ff
  1. manila_tempest_tests/