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			78 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			78 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| import sys
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| from test import test_support, list_tests
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| 
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| class ListTest(list_tests.CommonTest):
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|     type2test = list
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| 
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|     def test_basic(self):
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|         self.assertEqual(list([]), [])
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|         l0_3 = [0, 1, 2, 3]
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|         l0_3_bis = list(l0_3)
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|         self.assertEqual(l0_3, l0_3_bis)
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|         self.assert_(l0_3 is not l0_3_bis)
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|         self.assertEqual(list(()), [])
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|         self.assertEqual(list((0, 1, 2, 3)), [0, 1, 2, 3])
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|         self.assertEqual(list(''), [])
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|         self.assertEqual(list('spam'), ['s', 'p', 'a', 'm'])
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| 
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|         if sys.maxint == 0x7fffffff:
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|             # This test can currently only work on 32-bit machines.
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|             # XXX If/when PySequence_Length() returns a ssize_t, it should be
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|             # XXX re-enabled.
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|             # Verify clearing of bug #556025.
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|             # This assumes that the max data size (sys.maxint) == max
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|             # address size this also assumes that the address size is at
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|             # least 4 bytes with 8 byte addresses, the bug is not well
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|             # tested
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|             #
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|             # Note: This test is expected to SEGV under Cygwin 1.3.12 or
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|             # earlier due to a newlib bug.  See the following mailing list
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|             # thread for the details:
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| 
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|             #     http://sources.redhat.com/ml/newlib/2002/msg00369.html
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|             self.assertRaises(MemoryError, list, xrange(sys.maxint // 2))
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| 
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|         # This code used to segfault in Py2.4a3
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|         x = []
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|         x.extend(-y for y in x)
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|         self.assertEqual(x, [])
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| 
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|     def test_truth(self):
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|         super(ListTest, self).test_truth()
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|         self.assert_(not [])
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|         self.assert_([42])
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| 
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|     def test_identity(self):
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|         self.assert_([] is not [])
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| 
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|     def test_len(self):
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|         super(ListTest, self).test_len()
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|         self.assertEqual(len([]), 0)
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|         self.assertEqual(len([0]), 1)
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|         self.assertEqual(len([0, 1, 2]), 3)
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| 
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|     def test_overflow(self):
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|         lst = [4, 5, 6, 7]
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|         n = int((sys.maxint*2+2) // len(lst))
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|         def mul(a, b): return a * b
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|         def imul(a, b): a *= b
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|         self.assertRaises((MemoryError, OverflowError), mul, lst, n)
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|         self.assertRaises((MemoryError, OverflowError), imul, lst, n)
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| 
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| def test_main(verbose=None):
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|     test_support.run_unittest(ListTest)
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| 
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|     # verify reference counting
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|     import sys
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|     if verbose and hasattr(sys, "gettotalrefcount"):
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|         import gc
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|         counts = [None] * 5
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|         for i in xrange(len(counts)):
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|             test_support.run_unittest(ListTest)
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|             gc.collect()
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|             counts[i] = sys.gettotalrefcount()
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|         print counts
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| 
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| 
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| if __name__ == "__main__":
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|     test_main(verbose=True)
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