Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_compare.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 1d84bf5f9478
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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f1c4406bf481 Convert test_compare to use unittest. Hopefully we can find out
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1 import unittest
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2 from test import test_support
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3
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4 class Empty:
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5 def __repr__(self):
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6 return '<Empty>'
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7
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8 class Coerce:
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9 def __init__(self, arg):
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10 self.arg = arg
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11
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12 def __repr__(self):
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13 return '<Coerce %s>' % self.arg
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14
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15 def __coerce__(self, other):
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16 if isinstance(other, Coerce):
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17 return self.arg, other.arg
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18 else:
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19 return self.arg, other
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20
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21 class Cmp:
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22 def __init__(self,arg):
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23 self.arg = arg
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24
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25 def __repr__(self):
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26 return '<Cmp %s>' % self.arg
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27
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28 def __cmp__(self, other):
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29 return cmp(self.arg, other)
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30
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parents: 24442
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31 class ComparisonTest(unittest.TestCase):
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32 set1 = [2, 2.0, 2L, 2+0j, Coerce(2), Cmp(2.0)]
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33 set2 = [[1], (3,), None, Empty()]
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34 candidates = set1 + set2
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35
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36 def test_comparisons(self):
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37 for a in self.candidates:
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38 for b in self.candidates:
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39 if ((a in self.set1) and (b in self.set1)) or a is b:
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40 self.assertEqual(a, b)
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41 else:
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42 self.assertNotEqual(a, b)
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43
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44 def test_id_comparisons(self):
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45 # Ensure default comparison compares id() of args
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46 L = []
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47 for i in range(10):
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48 L.insert(len(L)//2, Empty())
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49 for a in L:
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50 for b in L:
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51 self.assertEqual(cmp(a, b), cmp(id(a), id(b)),
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52 'a=%r, b=%r' % (a, b))
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53
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54 def test_main():
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55 test_support.run_unittest(ComparisonTest)
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56
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57 if __name__ == '__main__':
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58 test_main()