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Make dict.keys() and dict.items() comparable to sets, using == and !=.

Browse source 
(PEP 3106 requires subset comparisons too, those will come later if someone
really wants them. :-)
This commit is contained in:
Guido van Rossum 2007-02-12 02:23:40 +00:00
parent e19aad4c7b
commit d9214d1f2c
2 changed files with 107 additions and 4 deletions
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30
Lib/test/test_dictviews.py
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@ -17,18 +17,33 @@ class DictSetTest(unittest.TestCase):
def test_dict_keys(self):
d = {1: 10, "a": "ABC"}
keys = d.keys()
self.assertEqual(set(keys), {1, "a"})
self.assertEqual(len(keys), 2)
self.assertEqual(set(keys), {1, "a"})
self.assertEqual(keys, {1, "a"})
self.assertNotEqual(keys, {1, "a", "b"})
self.assertNotEqual(keys, {1, "b"})
self.assertNotEqual(keys, {1})
self.assertNotEqual(keys, 42)
self.assert_(1 in keys)
self.assert_("a" in keys)
self.assert_(10 not in keys)
self.assert_("Z" not in keys)
self.assertEqual(d.keys(), d.keys())
e = {1: 11, "a": "def"}
self.assertEqual(d.keys(), e.keys())
del e["a"]
self.assertNotEqual(d.keys(), e.keys())
def test_dict_items(self):
d = {1: 10, "a": "ABC"}
items = d.items()
self.assertEqual(set(items), {(1, 10), ("a", "ABC")})
self.assertEqual(len(items), 2)
self.assertEqual(set(items), {(1, 10), ("a", "ABC")})
self.assertEqual(items, {(1, 10), ("a", "ABC")})
self.assertNotEqual(items, {(1, 10), ("a", "ABC"), "junk"})
self.assertNotEqual(items, {(1, 10), ("a", "def")})
self.assertNotEqual(items, {(1, 10)})
self.assertNotEqual(items, 42)
self.assert_((1, 10) in items)
self.assert_(("a", "ABC") in items)
self.assert_((1, 11) not in items)
@ -36,6 +51,17 @@ class DictSetTest(unittest.TestCase):
self.assert_(() not in items)
self.assert_((1,) not in items)
self.assert_((1, 2, 3) not in items)
self.assertEqual(d.items(), d.items())
e = d.copy()
self.assertEqual(d.items(), e.items())
e["a"] = "def"
self.assertNotEqual(d.items(), e.items())
def test_dict_mixed_keys_items(self):
d = {(1, 1): 11, (2, 2): 22}
e = {1: 1, 2: 2}
self.assertEqual(d.keys(), e.items())
self.assertNotEqual(d.items(), e.keys())
def test_dict_values(self):
d = {1: 10, "a": "ABC"}