New submission from Vajrasky Kok:
In two "test_copying" methods in Lib/test/test_collections.py, variable i is
never used. My guess is the original test writer forgot to utilize the variable
i.
For example, in test_copying method in TestOrderedDict class:
def test_copying(self):
# Check that ordered dicts are copyable, deepcopyable, picklable,
# and have a repr/eval round-trip
pairs = [('c', 1), ('b', 2), ('a', 3), ('d', 4), ('e', 5), ('f', 6)]
od = OrderedDict(pairs)
update_test = OrderedDict()
update_test.update(od)
for i, dup in enumerate([
od.copy(),
copy.copy(od),
copy.deepcopy(od),
pickle.loads(pickle.dumps(od, 0)),
pickle.loads(pickle.dumps(od, 1)),
pickle.loads(pickle.dumps(od, 2)),
pickle.loads(pickle.dumps(od, 3)),
pickle.loads(pickle.dumps(od, -1)),
eval(repr(od)),
update_test,
OrderedDict(od),
]):
self.assertTrue(dup is not od)
self.assertEqual(dup, od)
self.assertEqual(list(dup.items()), list(od.items()))
self.assertEqual(len(dup), len(od))
self.assertEqual(type(dup), type(od))
The variable i in "for i, dup in enumerate" is never used.
The test_copying method in TestCounter class has the same problem.
In my opinion, we need to put variable i inside the message in the assert
functions to detect which place inside the iteration the test fails.
----------
components: Tests
files: test_copying.patch
keywords: patch
messages: 190393
nosy: vajrasky
priority: normal
severity: normal
status: open
title: There are unused variables in Lib/test/test_collections.py
versions: Python 3.4
Added file: http://bugs.python.org/file30432/test_copying.patch
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<http://bugs.python.org/issue18106>
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