| import unittest |
| from test import test_support, list_tests |
| |
| class ListTest(list_tests.CommonTest): |
| type2test = list |
| |
| def test_truth(self): |
| super().test_truth() |
| self.assert_(not []) |
| self.assert_([42]) |
| |
| def test_identity(self): |
| self.assert_([] is not []) |
| |
| def test_len(self): |
| super().test_len() |
| self.assertEqual(len([]), 0) |
| self.assertEqual(len([0]), 1) |
| self.assertEqual(len([0, 1, 2]), 3) |
| |
| 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 range(len(counts)): |
| test_support.run_unittest(ListTest) |
| gc.collect() |
| counts[i] = sys.gettotalrefcount() |
| print(counts) |
| |
| |
| if __name__ == "__main__": |
| test_main(verbose=True) |