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ce272b6f8a
svn+ssh://pythondev@svn.python.org/python/trunk ........ r58204 | georg.brandl | 2007-09-19 08:37:19 +0200 (Wed, 19 Sep 2007) | 2 lines Fix #1169: remove docstrings in functions for -OO. ........ r58206 | sean.reifschneider | 2007-09-19 09:52:56 +0200 (Wed, 19 Sep 2007) | 2 lines issue1177: Ported Facundo's from urllib2 to urllib, accepting 2xx responses. ........ r58207 | facundo.batista | 2007-09-19 16:02:03 +0200 (Wed, 19 Sep 2007) | 3 lines Annotated the correction to urllib.py, issue #1177 ........ r58208 | facundo.batista | 2007-09-19 17:10:06 +0200 (Wed, 19 Sep 2007) | 7 lines Issue #1772851. Alters long.__hash__ from being *almost* completely predictable to being completely predictable. The value of hash(n) is unchanged for any n that's small enough to be representable as an int, and also unchanged for the vast majority of long integers n of reasonable size. ........ r58209 | thomas.wouters | 2007-09-19 19:27:29 +0200 (Wed, 19 Sep 2007) | 4 lines Fix obvious typo in threaded test. ........ r58210 | thomas.wouters | 2007-09-19 19:27:43 +0200 (Wed, 19 Sep 2007) | 4 lines Whitespace cleanup. ........
45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
# test the invariant that
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# iff a==b then hash(a)==hash(b)
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#
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import unittest
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from test import test_support
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class HashEqualityTestCase(unittest.TestCase):
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def same_hash(self, *objlist):
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# Hash each object given and fail if
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# the hash values are not all the same.
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hashed = list(map(hash, objlist))
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for h in hashed[1:]:
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if h != hashed[0]:
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self.fail("hashed values differ: %r" % (objlist,))
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def test_numeric_literals(self):
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self.same_hash(1, 1, 1.0, 1.0+0.0j)
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self.same_hash(0, 0.0, 0.0+0.0j)
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self.same_hash(-1, -1.0, -1.0+0.0j)
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self.same_hash(-2, -2.0, -2.0+0.0j)
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def test_coerced_integers(self):
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self.same_hash(int(1), int(1), float(1), complex(1),
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int('1'), float('1.0'))
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self.same_hash(int(-2**31), float(-2**31))
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self.same_hash(int(1-2**31), float(1-2**31))
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self.same_hash(int(2**31-1), float(2**31-1))
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# for 64-bit platforms
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self.same_hash(int(2**31), float(2**31))
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self.same_hash(int(-2**63), float(-2**63))
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def test_coerced_floats(self):
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self.same_hash(int(1.23e300), float(1.23e300))
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self.same_hash(float(0.5), complex(0.5, 0.0))
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def test_main():
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test_support.run_unittest(HashEqualityTestCase)
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if __name__ == "__main__":
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test_main()
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