| 282 | self.assertRaises(ValueError, self.open, bytes_fn, 'w', encoding="utf-8") |
| 283 | |
| 284 | def test_raw_file_io(self): |
| 285 | with self.open(os_helper.TESTFN, "wb", buffering=0) as f: |
| 286 | self.assertEqual(f.readable(), False) |
| 287 | self.assertEqual(f.writable(), True) |
| 288 | self.assertEqual(f.seekable(), True) |
| 289 | self.write_ops(f) |
| 290 | with self.open(os_helper.TESTFN, "rb", buffering=0) as f: |
| 291 | self.assertEqual(f.readable(), True) |
| 292 | self.assertEqual(f.writable(), False) |
| 293 | self.assertEqual(f.seekable(), True) |
| 294 | self.read_ops(f) |
| 295 | |
| 296 | def test_buffered_file_io(self): |
| 297 | with self.open(os_helper.TESTFN, "wb") as f: |