
Some tests used incorrect order assertIs(observed, expected). The correct order expected by testtools is assertIs(expected, observed, message='') Assert that expected is observed. Parameters: expected The expected value. observed The observed value. message An optional message describing the error. https://docs.python.org/2/library/unittest.html Change-Id: I5f406336b7804c13ca042dd0c6b30645a711c5f2