diff options
Diffstat (limited to 'Lib/test/test_poll.py')
| -rw-r--r-- | Lib/test/test_poll.py | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/Lib/test/test_poll.py b/Lib/test/test_poll.py index f98a280e9a..a1e5c3dbf8 100644 --- a/Lib/test/test_poll.py +++ b/Lib/test/test_poll.py @@ -1,6 +1,7 @@ # Test case for the os.poll() function import os +import subprocess import random import select import _testcapi @@ -15,7 +16,7 @@ from test.support import TESTFN, run_unittest, reap_threads try: select.poll except AttributeError: - raise unittest.SkipTest("select.poll not defined -- skipping test_poll") + raise unittest.SkipTest("select.poll not defined") def find_ready_matching(ready, flag): @@ -76,13 +77,11 @@ class PollTests(unittest.TestCase): self.assertEqual(bufs, [MSG] * NUM_PIPES) - def poll_unit_tests(self): + def test_poll_unit_tests(self): # returns NVAL for invalid file descriptor - FD = 42 - try: - os.close(FD) - except OSError: - pass + FD, w = os.pipe() + os.close(FD) + os.close(w) p = select.poll() p.register(FD) r = p.poll() @@ -125,7 +124,9 @@ class PollTests(unittest.TestCase): def test_poll2(self): cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done' - p = os.popen(cmd, 'r') + proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, + bufsize=0) + p = proc.stdout pollster = select.poll() pollster.register( p, select.POLLIN ) for tout in (0, 1000, 2000, 4000, 8000, 16000) + (-1,)*10: @@ -135,7 +136,7 @@ class PollTests(unittest.TestCase): fd, flags = fdlist[0] if flags & select.POLLHUP: line = p.readline() - if line != "": + if line != b"": self.fail('error: pipe seems to be closed, but still returns data') continue @@ -143,6 +144,7 @@ class PollTests(unittest.TestCase): line = p.readline() if not line: break + self.assertEqual(line, b'testing...\n') continue else: self.fail('Unexpected return value from select.poll: %s' % fdlist) |