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| author | Raymond Hettinger <python@rcn.com> | 2003-09-24 03:56:07 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2003-09-24 03:56:07 (GMT) |
| commit | 3778f40389e27313c34ff539d33fe9304754a9c2 (patch) | |
| tree | bb3c577ec6b9c6c6dc0ca320372478a515bd0963 /Lib/test/test_sets.py | |
| parent | fd95c3a46688a643970c98349306d5f3389853fa (diff) | |
| download | cpython-3778f40389e27313c34ff539d33fe9304754a9c2.zip cpython-3778f40389e27313c34ff539d33fe9304754a9c2.tar.gz cpython-3778f40389e27313c34ff539d33fe9304754a9c2.tar.bz2 | |
Add more identity tests.
Diffstat (limited to 'Lib/test/test_sets.py')
| -rw-r--r-- | Lib/test/test_sets.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_sets.py b/Lib/test/test_sets.py index 1b26d4c..9cc586f 100644 --- a/Lib/test/test_sets.py +++ b/Lib/test/test_sets.py @@ -732,6 +732,16 @@ class TestIdentities(unittest.TestCase): if a != b: self.assertNotEqual(a-b, b-a) + def test_reflexsive_relations(self): + a, zero = self.a, Set() + self.assertEqual(a ^ a, zero) + self.assertEqual(a - a, zero) + self.assertEqual(a | a, a) + self.assertEqual(a & a, a) + self.assert_(a <= a) + self.assert_(a >= a) + self.assert_(a == a) + def test_summations(self): # check that sums of parts equal the whole a, b = self.a, self.b @@ -756,6 +766,7 @@ class TestIdentities(unittest.TestCase): self.assertEqual(len(b), len(b-a) + len(a&b)) self.assertEqual(len(a^b), len(a-b) + len(b-a)) self.assertEqual(len(a|b), len(a-b) + len(a&b) + len(b-a)) + self.assertEqual(len(a^b) + len(a&b), len(a|b)) #============================================================================== |