(self)
| 278 | ## raise TestFailed("Read from master_fd did not raise exception") |
| 279 | |
| 280 | def test_master_read(self): |
| 281 | # XXX(nnorwitz): this test leaks fds when there is an error. |
| 282 | debug("Calling pty.openpty()") |
| 283 | master_fd, slave_fd = pty.openpty() |
| 284 | debug(f"Got master_fd '{master_fd}', slave_fd '{slave_fd}'") |
| 285 | |
| 286 | self.addCleanup(os.close, master_fd) |
| 287 | |
| 288 | debug("Closing slave_fd") |
| 289 | os.close(slave_fd) |
| 290 | |
| 291 | debug("Reading from master_fd") |
| 292 | try: |
| 293 | data = os.read(master_fd, 1) |
| 294 | except OSError: # Linux |
| 295 | data = b"" |
| 296 | |
| 297 | self.assertEqual(data, b"") |
| 298 | |
| 299 | @warnings_helper.ignore_fork_in_thread_deprecation_warnings() |
| 300 | def test_spawn_doesnt_hang(self): |
nothing calls this directly
no test coverage detected