mirror of
https://github.com/python/cpython.git
synced 2025-07-08 20:05:28 +00:00
deeaac49e2
- Add requires_fork and requires_subprocess to more tests - Skip extension import tests if dlopen is not available - Don't assume that _testcapi is a shared extension - Skip a lot of socket tests that don't work on Emscripten - Skip mmap tests, mmap emulation is incomplete - venv does not work yet - Cannot get libc from executable The "entire" test suite is now passing on Emscripten with EMSDK from git head (91 suites are skipped).
105 lines
3.4 KiB
Python
105 lines
3.4 KiB
Python
import errno
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import os
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import select
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import subprocess
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import sys
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import textwrap
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import unittest
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from test import support
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support.requires_working_socket(module=True)
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@unittest.skipIf((sys.platform[:3]=='win'),
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"can't easily test on this system")
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class SelectTestCase(unittest.TestCase):
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class Nope:
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pass
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class Almost:
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def fileno(self):
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return 'fileno'
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def test_error_conditions(self):
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self.assertRaises(TypeError, select.select, 1, 2, 3)
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self.assertRaises(TypeError, select.select, [self.Nope()], [], [])
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self.assertRaises(TypeError, select.select, [self.Almost()], [], [])
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self.assertRaises(TypeError, select.select, [], [], [], "not a number")
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self.assertRaises(ValueError, select.select, [], [], [], -1)
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# Issue #12367: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/155606
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@unittest.skipIf(sys.platform.startswith('freebsd'),
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'skip because of a FreeBSD bug: kern/155606')
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def test_errno(self):
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with open(__file__, 'rb') as fp:
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fd = fp.fileno()
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fp.close()
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try:
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select.select([fd], [], [], 0)
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except OSError as err:
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self.assertEqual(err.errno, errno.EBADF)
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else:
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self.fail("exception not raised")
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def test_returned_list_identity(self):
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# See issue #8329
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r, w, x = select.select([], [], [], 1)
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self.assertIsNot(r, w)
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self.assertIsNot(r, x)
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self.assertIsNot(w, x)
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@support.requires_fork()
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def test_select(self):
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code = textwrap.dedent('''
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import time
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for i in range(10):
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print("testing...", flush=True)
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time.sleep(0.050)
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''')
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cmd = [sys.executable, '-I', '-c', code]
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with subprocess.Popen(cmd, stdout=subprocess.PIPE) as proc:
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pipe = proc.stdout
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for timeout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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if support.verbose:
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print(f'timeout = {timeout}')
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rfd, wfd, xfd = select.select([pipe], [], [], timeout)
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self.assertEqual(wfd, [])
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self.assertEqual(xfd, [])
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if not rfd:
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continue
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if rfd == [pipe]:
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line = pipe.readline()
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if support.verbose:
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print(repr(line))
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if not line:
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if support.verbose:
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print('EOF')
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break
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continue
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self.fail('Unexpected return values from select():',
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rfd, wfd, xfd)
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# Issue 16230: Crash on select resized list
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@unittest.skipIf(
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support.is_emscripten, "Emscripten cannot select a fd multiple times."
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)
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def test_select_mutated(self):
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a = []
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class F:
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def fileno(self):
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del a[-1]
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return sys.__stdout__.fileno()
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a[:] = [F()] * 10
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self.assertEqual(select.select([], a, []), ([], a[:5], []))
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def test_disallow_instantiation(self):
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support.check_disallow_instantiation(self, type(select.poll()))
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if hasattr(select, 'devpoll'):
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support.check_disallow_instantiation(self, type(select.devpoll()))
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def tearDownModule():
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support.reap_children()
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if __name__ == "__main__":
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unittest.main()
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