Use assert(Not)In/Greater(Equal)/LessEqual/IsNotNone

Instead of using assertTrue(A * B) / assertFalse(A * B)
developers should use assertNotIn, assertIn, assertGreater,
assertGreaterEqual or assertLessEqual or assertIsNotNone.
They are compatible with Python 2.7[1] and 3.4[2]

[1]: https://docs.python.org/2.7/library/unittest.html
[2]: https://docs.python.org/3.4/library/unittest.html

Change-Id: I26ab3bc3cad5e1dddc812388b864d51c73f53f58
7 files changed
tree: 2200ea3a9b6f202502a464ed0968a50684e1dd92
  1. manila_tempest_tests/