test_csv.py 文件源码

def test_write_arg_valid(self):
        self._write_error_test(csv.Error, None)
        self._write_test((), '')
        self._write_test([None], '""')
        self._write_error_test(csv.Error, [None], quoting = csv.QUOTE_NONE)
        # Check that exceptions are passed up the chain
        class BadList:
            def __len__(self):
                return 10;
            def __getitem__(self, i):
                if i > 2:
                    raise IOError
        self._write_error_test(IOError, BadList())
        class BadItem:
            def __str__(self):
                raise IOError
        self._write_error_test(IOError, [BadItem()])