Method check

Lib/test/test_fileinput.py:971–975

(errors, expected_lines)

        self.addCleanup(safe_unlink, TESTFN)

        def check(errors, expected_lines):
            with FileInput(files=TESTFN, mode='r',
                           openhook=hook_encoded('utf-8', errors=errors)) as fi:
                lines = list(fi)
            self.assertEqual(lines, expected_lines)

        check('ignore', ['abc'])
        with self.assertRaises(UnicodeDecodeError):