Previously, we'd occasionally get spurious failures like
FAIL: test_delete_account (tests.unit.test_shell.TestShell)
----------------------------------------------------------------------
Traceback (most recent call last):
File ".../mock/mock.py", line 1721, in _inner
return f(*args, **kw)
File ".../mock/mock.py", line 1305, in patched
return func(*args, **keywargs)
File ".../tests/unit/test_shell.py", line 788, in test_delete_account
response_dict={})], any_order=True)
File ".../mock/mock.py", line 983, in assert_has_calls
), cause)
File ".../six.py", line 718, in raise_from
raise value
AssertionError: (call(u'container', u'object', query_string=None,
response_dict={}),)
not all found in call list
Related-Bug: #1539536
Related-Bug: #1480223
Change-Id: I810894545ca74d3b2f2dbde2d0388eb69c2ba710