| 80 | self.assertEqual(bufs, [MSG] * NUM_PIPES) |
| 81 | |
| 82 | def test_poll_unit_tests(self): |
| 83 | # returns NVAL for invalid file descriptor |
| 84 | FD, w = os.pipe() |
| 85 | os.close(FD) |
| 86 | os.close(w) |
| 87 | p = select.poll() |
| 88 | p.register(FD) |
| 89 | r = p.poll() |
| 90 | self.assertEqual(r[0], (FD, select.POLLNVAL)) |
| 91 | |
| 92 | with open(TESTFN, 'w') as f: |
| 93 | fd = f.fileno() |
| 94 | p = select.poll() |
| 95 | p.register(f) |
| 96 | r = p.poll() |
| 97 | self.assertEqual(r[0][0], fd) |
| 98 | r = p.poll() |
| 99 | self.assertEqual(r[0], (fd, select.POLLNVAL)) |
| 100 | os.unlink(TESTFN) |
| 101 | |
| 102 | # type error for invalid arguments |
| 103 | p = select.poll() |
| 104 | self.assertRaises(TypeError, p.register, p) |
| 105 | self.assertRaises(TypeError, p.unregister, p) |
| 106 | |
| 107 | # can't unregister non-existent object |
| 108 | p = select.poll() |
| 109 | self.assertRaises(KeyError, p.unregister, 3) |
| 110 | |
| 111 | # Test error cases |
| 112 | pollster = select.poll() |
| 113 | class Nope: |
| 114 | pass |
| 115 | |
| 116 | class Almost: |
| 117 | def fileno(self): |
| 118 | return 'fileno' |
| 119 | |
| 120 | self.assertRaises(TypeError, pollster.register, Nope(), 0) |
| 121 | self.assertRaises(TypeError, pollster.register, Almost(), 0) |
| 122 | |
| 123 | # Another test case for poll(). This is copied from the test case for |
| 124 | # select(), modified to use poll() instead. |