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Keir Mierle's improved tests for dict view containment tests.

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Guido van Rossum 2007-08-24 23:49:54 +00:00
parent 1d71996013
commit cf2ce36fa2
1 changed files with 34 additions and 32 deletions
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66
Lib/test/test_dict.py
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@ -399,50 +399,52 @@ class DictTest(unittest.TestCase):
self.fail("< didn't raise Exc")
def test_keys_contained(self):
self.helper_keys_contained(lambda x: x.keys())
self.helper_keys_contained(lambda x: x.items())
def helper_keys_contained(self, fn):
# Test rich comparisons against dict key views, which should behave the
# same as sets.
empty = dict()
empty2 = dict()
smaller = {1:1, 2:2}
larger = {1:1, 2:2, 3:3}
larger2 = {1:1, 2:2, 3:3}
larger3 = {4:1, 2:2, 3:3}
empty = fn(dict())
empty2 = fn(dict())
smaller = fn({1:1, 2:2})
larger = fn({1:1, 2:2, 3:3})
larger2 = fn({1:1, 2:2, 3:3})
larger3 = fn({4:1, 2:2, 3:3})
self.assertTrue(smaller.keys() < larger.keys())
self.assertTrue(smaller.keys() <= larger.keys())
self.assertTrue(larger.keys() > smaller.keys())
self.assertTrue(larger.keys() >= smaller.keys())
self.assertTrue(smaller < larger)
self.assertTrue(smaller <= larger)
self.assertTrue(larger > smaller)
self.assertTrue(larger >= smaller)
self.assertFalse(smaller.keys() >= larger.keys())
self.assertFalse(smaller.keys() > larger.keys())
self.assertFalse(larger.keys() <= smaller.keys())
self.assertFalse(larger.keys() < smaller.keys())
self.assertFalse(smaller >= larger)
self.assertFalse(smaller > larger)
self.assertFalse(larger <= smaller)
self.assertFalse(larger < smaller)
self.assertFalse(smaller.keys() < larger3.keys())
self.assertFalse(smaller.keys() <= larger3.keys())
self.assertFalse(larger3.keys() > smaller.keys())
self.assertFalse(larger3.keys() >= smaller.keys())
self.assertFalse(smaller < larger3)
self.assertFalse(smaller <= larger3)
self.assertFalse(larger3 > smaller)
self.assertFalse(larger3 >= smaller)
# Inequality strictness
self.assertTrue(larger2.keys() >= larger.keys())
self.assertTrue(larger2.keys() <= larger.keys())
self.assertFalse(larger2.keys() > larger.keys())
self.assertFalse(larger2.keys() < larger.keys())
self.assertTrue(larger2 >= larger)
self.assertTrue(larger2 <= larger)
self.assertFalse(larger2 > larger)
self.assertFalse(larger2 < larger)
self.assertTrue(larger.keys() == larger2.keys())
self.assertTrue(smaller.keys() != larger.keys())
self.assertTrue(larger == larger2)
self.assertTrue(smaller != larger)
# There is an optimization on the zero-element case.
self.assertTrue(empty.keys() == empty2.keys())
self.assertFalse(empty.keys() != empty2.keys())
self.assertFalse(empty.keys() == smaller.keys())
self.assertTrue(empty.keys() != smaller.keys())
self.assertTrue(empty == empty2)
self.assertFalse(empty != empty2)
self.assertFalse(empty == smaller)
self.assertTrue(empty != smaller)
# With the same size, an elementwise compare happens
self.assertTrue(larger.keys() != larger3.keys())
self.assertFalse(larger.keys() == larger3.keys())
# XXX the same tests for .items()
self.assertTrue(larger != larger3)
self.assertFalse(larger == larger3)
def test_errors_in_view_containment_check(self):
class C: