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Diffstat (limited to 'Lib/test/test_collections.py')
| -rw-r--r-- | Lib/test/test_collections.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py index eb6d4d7..04c4d97 100644 --- a/Lib/test/test_collections.py +++ b/Lib/test/test_collections.py @@ -943,6 +943,11 @@ class TestCounter(unittest.TestCase): c.subtract('aaaabbcce') self.assertEqual(c, Counter(a=-1, b=0, c=-1, d=1, e=-1)) + def test_unary(self): + c = Counter(a=-5, b=0, c=5, d=10, e=15,g=40) + self.assertEqual(dict(+c), dict(c=5, d=10, e=15, g=40)) + self.assertEqual(dict(-c), dict(a=5)) + def test_helper_function(self): # two paths, one for real dicts and one for other mappings elems = list('abracadabra') |