Method test_builtin_list

Lib/test/test_iter.py:467–495

(self)

    # Test list()'s use of iterators.
    def test_builtin_list(self):
        self.assertEqual(list(SequenceClass(5)), list(range(5)))
        self.assertEqual(list(SequenceClass(0)), [])
        self.assertEqual(list(()), [])

        d = {"one": 1, "two": 2, "three": 3}
        self.assertEqual(list(d), list(d.keys()))

        self.assertRaises(TypeError, list, list)
        self.assertRaises(TypeError, list, 42)

        f = open(TESTFN, "w", encoding="utf-8")
        try:
            for i in range(5):
                f.write("%d\n" % i)
        finally:
            f.close()
        f = open(TESTFN, "r", encoding="utf-8")
        try:
            self.assertEqual(list(f), ["0\n", "1\n", "2\n", "3\n", "4\n"])
            f.seek(0, 0)
            self.assertEqual(list(f),
                             ["0\n", "1\n", "2\n", "3\n", "4\n"])
        finally:
            f.close()
            try:
                unlink(TESTFN)
            except OSError:
                pass

    # Test tuples()'s use of iterators.
    def test_builtin_tuple(self):