tree bd4c9f5f3039222a9791e5f5c2f6074fa7d44676
parent aa17472706435248dd43ccfb5d1f380cbd18cfff
author gugug <gu.jin@99cloud.net> 1594524313 +0800
committer gugug <gu.jin@99cloud.net> 1594524313 +0800

Replace assertItemsEqual with assertCountEqual

assertItemsEqual was removed from Python's unittest.TestCase in
Python 3.3 [1][2]. We have been able to use them since then, because
testtools required unittest2, which still included it. With testtools
removing Python 2.7 support [3][4], we will lose support for
assertItemsEqual, so we should switch to use assertCountEqual.

[1] - https://bugs.python.org/issue17866
[2] - https://hg.python.org/cpython/rev/d9921cb6e3cd
[3] - testing-cabal/testtools#286
[4] - testing-cabal/testtools#277

Change-Id: I2edc09748de1739c558040a8ae6a15373ad1a93b