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