Commit | Line | Data |
---|---|---|
86530b38 AT |
1 | # test the invariant that |
2 | # iff a==b then hash(a)==hash(b) | |
3 | # | |
4 | ||
5 | import unittest | |
6 | from test import test_support | |
7 | ||
8 | ||
9 | class HashEqualityTestCase(unittest.TestCase): | |
10 | ||
11 | def same_hash(self, *objlist): | |
12 | # Hash each object given and fail if | |
13 | # the hash values are not all the same. | |
14 | hashed = map(hash, objlist) | |
15 | for h in hashed[1:]: | |
16 | if h != hashed[0]: | |
17 | self.fail("hashed values differ: %r" % (objlist,)) | |
18 | ||
19 | def test_numeric_literals(self): | |
20 | self.same_hash(1, 1L, 1.0, 1.0+0.0j) | |
21 | ||
22 | def test_coerced_integers(self): | |
23 | self.same_hash(int(1), long(1), float(1), complex(1), | |
24 | int('1'), float('1.0')) | |
25 | ||
26 | def test_coerced_floats(self): | |
27 | self.same_hash(long(1.23e300), float(1.23e300)) | |
28 | self.same_hash(float(0.5), complex(0.5, 0.0)) | |
29 | ||
30 | ||
31 | def test_main(): | |
32 | test_support.run_unittest(HashEqualityTestCase) | |
33 | ||
34 | ||
35 | if __name__ == "__main__": | |
36 | test_main() |