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52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
import sys
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import unittest
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from test import test_support
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class Empty:
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def __repr__(self):
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return '<Empty>'
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class Cmp:
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def __init__(self,arg):
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self.arg = arg
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def __repr__(self):
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return '<Cmp %s>' % self.arg
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def __eq__(self, other):
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return self.arg == other
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class ComparisonTest(unittest.TestCase):
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set1 = [2, 2.0, 2, 2+0j, Cmp(2.0)]
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set2 = [[1], (3,), None, Empty()]
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candidates = set1 + set2
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def test_comparisons(self):
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for a in self.candidates:
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for b in self.candidates:
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if ((a in self.set1) and (b in self.set1)) or a is b:
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self.assertEqual(a, b)
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else:
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self.assertNotEqual(a, b)
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def test_id_comparisons(self):
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# Ensure default comparison compares id() of args
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L = []
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for i in range(10):
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L.insert(len(L)//2, Empty())
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for a in L:
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for b in L:
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self.assertEqual(a == b, id(a) == id(b),
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'a=%r, b=%r' % (a, b))
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def test_ne_defaults_to_not_eq(self):
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a = Cmp(1)
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b = Cmp(1)
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self.assertTrue(a == b)
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self.assertFalse(a != b)
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def test_main():
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test_support.run_unittest(ComparisonTest)
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if __name__ == '__main__':
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test_main()
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