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d23047b62c
not passed to subprocess.Popen as the default value will be changing in a future Python to the safer and more often desired value of True. DeprecationWarnings that show up in a lot of existing code are controversial and have caused pain in the past. I'd like to leave this on for 3.2 beta1 and see how things go. We can remove the warning if it is deemed too noisy during any betas. (case study: the md5 and sha module DeprecationWarnings are loathed around the world as those modules were never going to be removed in 2.x and 2to3 has a fixer for code that uses them)
1272 lines
50 KiB
Python
1272 lines
50 KiB
Python
import unittest
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from test import support
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import subprocess
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import sys
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import signal
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import os
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import errno
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import tempfile
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import time
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import re
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import sysconfig
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import warnings
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try:
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import gc
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except ImportError:
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gc = None
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mswindows = (sys.platform == "win32")
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#
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# Depends on the following external programs: Python
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#
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if mswindows:
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SETBINARY = ('import msvcrt; msvcrt.setmode(sys.stdout.fileno(), '
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'os.O_BINARY);')
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else:
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SETBINARY = ''
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try:
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mkstemp = tempfile.mkstemp
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except AttributeError:
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# tempfile.mkstemp is not available
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def mkstemp():
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"""Replacement for mkstemp, calling mktemp."""
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fname = tempfile.mktemp()
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return os.open(fname, os.O_RDWR|os.O_CREAT), fname
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class BaseTestCase(unittest.TestCase):
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def setUp(self):
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# Try to minimize the number of children we have so this test
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# doesn't crash on some buildbots (Alphas in particular).
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support.reap_children()
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def tearDown(self):
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for inst in subprocess._active:
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inst.wait()
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subprocess._cleanup()
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self.assertFalse(subprocess._active, "subprocess._active not empty")
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def assertStderrEqual(self, stderr, expected, msg=None):
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# In a debug build, stuff like "[6580 refs]" is printed to stderr at
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# shutdown time. That frustrates tests trying to check stderr produced
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# from a spawned Python process.
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actual = support.strip_python_stderr(stderr)
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self.assertEqual(actual, expected, msg)
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class DeprecationWarningTests(BaseTestCase):
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def setUp(self):
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BaseTestCase.setUp(self)
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self._saved_warn = warnings.warn
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self._warn_calls = []
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warnings.warn = self._record_warn
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def tearDown(self):
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warnings.warn = self._saved_warn
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BaseTestCase.tearDown(self)
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def _record_warn(self, *args):
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"""A warnings.warn function that records calls."""
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self._warn_calls.append(args)
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self._saved_warn(*args)
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def testCloseFdsWarning(self):
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quick_process = [sys.executable, "-c", "import sys; sys.exit(0)"]
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subprocess.call(quick_process, close_fds=True)
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self.assertEqual([], self._warn_calls)
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subprocess.call(quick_process, close_fds=False)
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self.assertEqual([], self._warn_calls)
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self.assertWarns(DeprecationWarning, subprocess.call, quick_process)
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self.assertEqual(1, len(self._warn_calls))
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self.assertIn('close_fds parameter was not specified',
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self._warn_calls[0][0])
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class ProcessTestCase(BaseTestCase):
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def test_call_seq(self):
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# call() function with sequence argument
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rc = subprocess.call([sys.executable, "-c",
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"import sys; sys.exit(47)"])
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self.assertEqual(rc, 47)
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def test_check_call_zero(self):
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# check_call() function with zero return code
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rc = subprocess.check_call([sys.executable, "-c",
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"import sys; sys.exit(0)"])
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self.assertEqual(rc, 0)
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def test_check_call_nonzero(self):
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# check_call() function with non-zero return code
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with self.assertRaises(subprocess.CalledProcessError) as c:
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subprocess.check_call([sys.executable, "-c",
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"import sys; sys.exit(47)"])
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self.assertEqual(c.exception.returncode, 47)
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def test_check_output(self):
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# check_output() function with zero return code
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output = subprocess.check_output(
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[sys.executable, "-c", "print('BDFL')"])
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self.assertIn(b'BDFL', output)
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def test_check_output_nonzero(self):
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# check_call() function with non-zero return code
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with self.assertRaises(subprocess.CalledProcessError) as c:
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subprocess.check_output(
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[sys.executable, "-c", "import sys; sys.exit(5)"])
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self.assertEqual(c.exception.returncode, 5)
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def test_check_output_stderr(self):
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# check_output() function stderr redirected to stdout
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output = subprocess.check_output(
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[sys.executable, "-c", "import sys; sys.stderr.write('BDFL')"],
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stderr=subprocess.STDOUT)
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self.assertIn(b'BDFL', output)
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def test_check_output_stdout_arg(self):
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# check_output() function stderr redirected to stdout
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with self.assertRaises(ValueError) as c:
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output = subprocess.check_output(
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[sys.executable, "-c", "print('will not be run')"],
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stdout=sys.stdout)
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self.fail("Expected ValueError when stdout arg supplied.")
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self.assertIn('stdout', c.exception.args[0])
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def test_call_kwargs(self):
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# call() function with keyword args
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newenv = os.environ.copy()
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newenv["FRUIT"] = "banana"
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rc = subprocess.call([sys.executable, "-c",
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'import sys, os;'
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'sys.exit(os.getenv("FRUIT")=="banana")'],
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env=newenv)
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self.assertEqual(rc, 1)
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def test_stdin_none(self):
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# .stdin is None when not redirected
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p = subprocess.Popen([sys.executable, "-c", 'print("banana")'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.addCleanup(p.stderr.close)
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p.wait()
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self.assertEqual(p.stdin, None)
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def test_stdout_none(self):
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# .stdout is None when not redirected
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p = subprocess.Popen([sys.executable, "-c",
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'print(" this bit of output is from a '
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'test of stdout in a different '
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'process ...")'],
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stdin=subprocess.PIPE, stderr=subprocess.PIPE)
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self.addCleanup(p.stdin.close)
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self.addCleanup(p.stderr.close)
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p.wait()
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self.assertEqual(p.stdout, None)
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def test_stderr_none(self):
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# .stderr is None when not redirected
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p = subprocess.Popen([sys.executable, "-c", 'print("banana")'],
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stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.addCleanup(p.stdin.close)
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p.wait()
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self.assertEqual(p.stderr, None)
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def test_executable_with_cwd(self):
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python_dir = os.path.dirname(os.path.realpath(sys.executable))
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p = subprocess.Popen(["somethingyoudonthave", "-c",
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"import sys; sys.exit(47)"],
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executable=sys.executable, cwd=python_dir)
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p.wait()
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self.assertEqual(p.returncode, 47)
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@unittest.skipIf(sysconfig.is_python_build(),
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"need an installed Python. See #7774")
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def test_executable_without_cwd(self):
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# For a normal installation, it should work without 'cwd'
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# argument. For test runs in the build directory, see #7774.
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p = subprocess.Popen(["somethingyoudonthave", "-c",
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"import sys; sys.exit(47)"],
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executable=sys.executable)
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p.wait()
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self.assertEqual(p.returncode, 47)
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def test_stdin_pipe(self):
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# stdin redirection
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.exit(sys.stdin.read() == "pear")'],
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stdin=subprocess.PIPE)
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p.stdin.write(b"pear")
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p.stdin.close()
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p.wait()
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self.assertEqual(p.returncode, 1)
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def test_stdin_filedes(self):
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# stdin is set to open file descriptor
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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d = tf.fileno()
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os.write(d, b"pear")
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os.lseek(d, 0, 0)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.exit(sys.stdin.read() == "pear")'],
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stdin=d)
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p.wait()
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self.assertEqual(p.returncode, 1)
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def test_stdin_fileobj(self):
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# stdin is set to open file object
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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tf.write(b"pear")
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tf.seek(0)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.exit(sys.stdin.read() == "pear")'],
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stdin=tf)
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p.wait()
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self.assertEqual(p.returncode, 1)
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def test_stdout_pipe(self):
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# stdout redirection
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stdout.write("orange")'],
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stdout=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.assertEqual(p.stdout.read(), b"orange")
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def test_stdout_filedes(self):
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# stdout is set to open file descriptor
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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d = tf.fileno()
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stdout.write("orange")'],
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stdout=d)
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p.wait()
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os.lseek(d, 0, 0)
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self.assertEqual(os.read(d, 1024), b"orange")
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def test_stdout_fileobj(self):
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# stdout is set to open file object
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stdout.write("orange")'],
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stdout=tf)
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p.wait()
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tf.seek(0)
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self.assertEqual(tf.read(), b"orange")
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def test_stderr_pipe(self):
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# stderr redirection
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stderr.write("strawberry")'],
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stderr=subprocess.PIPE)
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self.addCleanup(p.stderr.close)
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self.assertStderrEqual(p.stderr.read(), b"strawberry")
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def test_stderr_filedes(self):
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# stderr is set to open file descriptor
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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d = tf.fileno()
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stderr.write("strawberry")'],
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stderr=d)
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p.wait()
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os.lseek(d, 0, 0)
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self.assertStderrEqual(os.read(d, 1024), b"strawberry")
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def test_stderr_fileobj(self):
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# stderr is set to open file object
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stderr.write("strawberry")'],
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stderr=tf)
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p.wait()
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tf.seek(0)
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self.assertStderrEqual(tf.read(), b"strawberry")
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def test_stdout_stderr_pipe(self):
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# capture stdout and stderr to the same pipe
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p = subprocess.Popen([sys.executable, "-c",
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'import sys;'
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'sys.stdout.write("apple");'
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'sys.stdout.flush();'
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'sys.stderr.write("orange")'],
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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self.addCleanup(p.stdout.close)
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self.assertStderrEqual(p.stdout.read(), b"appleorange")
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def test_stdout_stderr_file(self):
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# capture stdout and stderr to the same open file
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tf = tempfile.TemporaryFile()
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self.addCleanup(tf.close)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys;'
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'sys.stdout.write("apple");'
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'sys.stdout.flush();'
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'sys.stderr.write("orange")'],
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stdout=tf,
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stderr=tf)
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p.wait()
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tf.seek(0)
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self.assertStderrEqual(tf.read(), b"appleorange")
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def test_stdout_filedes_of_stdout(self):
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# stdout is set to 1 (#1531862).
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cmd = r"import sys, os; sys.exit(os.write(sys.stdout.fileno(), b'.\n'))"
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rc = subprocess.call([sys.executable, "-c", cmd], stdout=1)
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self.assertEqual(rc, 2)
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def test_cwd(self):
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tmpdir = tempfile.gettempdir()
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# We cannot use os.path.realpath to canonicalize the path,
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# since it doesn't expand Tru64 {memb} strings. See bug 1063571.
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cwd = os.getcwd()
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os.chdir(tmpdir)
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tmpdir = os.getcwd()
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os.chdir(cwd)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys,os;'
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'sys.stdout.write(os.getcwd())'],
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stdout=subprocess.PIPE,
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cwd=tmpdir)
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self.addCleanup(p.stdout.close)
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normcase = os.path.normcase
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self.assertEqual(normcase(p.stdout.read().decode("utf-8")),
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normcase(tmpdir))
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def test_env(self):
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newenv = os.environ.copy()
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newenv["FRUIT"] = "orange"
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p = subprocess.Popen([sys.executable, "-c",
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'import sys,os;'
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'sys.stdout.write(os.getenv("FRUIT"))'],
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stdout=subprocess.PIPE,
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env=newenv)
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self.addCleanup(p.stdout.close)
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self.assertEqual(p.stdout.read(), b"orange")
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def test_communicate_stdin(self):
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p = subprocess.Popen([sys.executable, "-c",
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'import sys;'
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'sys.exit(sys.stdin.read() == "pear")'],
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stdin=subprocess.PIPE)
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p.communicate(b"pear")
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self.assertEqual(p.returncode, 1)
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def test_communicate_stdout(self):
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stdout.write("pineapple")'],
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stdout=subprocess.PIPE)
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(stdout, stderr) = p.communicate()
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self.assertEqual(stdout, b"pineapple")
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self.assertEqual(stderr, None)
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def test_communicate_stderr(self):
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p = subprocess.Popen([sys.executable, "-c",
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'import sys; sys.stderr.write("pineapple")'],
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stderr=subprocess.PIPE)
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(stdout, stderr) = p.communicate()
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self.assertEqual(stdout, None)
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self.assertStderrEqual(stderr, b"pineapple")
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def test_communicate(self):
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p = subprocess.Popen([sys.executable, "-c",
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'import sys,os;'
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'sys.stderr.write("pineapple");'
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'sys.stdout.write(sys.stdin.read())'],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.addCleanup(p.stderr.close)
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self.addCleanup(p.stdin.close)
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(stdout, stderr) = p.communicate(b"banana")
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self.assertEqual(stdout, b"banana")
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self.assertStderrEqual(stderr, b"pineapple")
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|
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# This test is Linux specific for simplicity to at least have
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# some coverage. It is not a platform specific bug.
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@unittest.skipUnless(os.path.isdir('/proc/%d/fd' % os.getpid()),
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"Linux specific")
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# Test for the fd leak reported in http://bugs.python.org/issue2791.
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def test_communicate_pipe_fd_leak(self):
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fd_directory = '/proc/%d/fd' % os.getpid()
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num_fds_before_popen = len(os.listdir(fd_directory))
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p = subprocess.Popen([sys.executable, "-c", "print()"],
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stdout=subprocess.PIPE)
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p.communicate()
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num_fds_after_communicate = len(os.listdir(fd_directory))
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del p
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num_fds_after_destruction = len(os.listdir(fd_directory))
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self.assertEqual(num_fds_before_popen, num_fds_after_destruction)
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self.assertEqual(num_fds_before_popen, num_fds_after_communicate)
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|
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def test_communicate_returns(self):
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# communicate() should return None if no redirection is active
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p = subprocess.Popen([sys.executable, "-c",
|
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"import sys; sys.exit(47)"])
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(stdout, stderr) = p.communicate()
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self.assertEqual(stdout, None)
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self.assertEqual(stderr, None)
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|
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def test_communicate_pipe_buf(self):
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# communicate() with writes larger than pipe_buf
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# This test will probably deadlock rather than fail, if
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# communicate() does not work properly.
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x, y = os.pipe()
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if mswindows:
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pipe_buf = 512
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|
else:
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pipe_buf = os.fpathconf(x, "PC_PIPE_BUF")
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|
os.close(x)
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os.close(y)
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p = subprocess.Popen([sys.executable, "-c",
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'import sys,os;'
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'sys.stdout.write(sys.stdin.read(47));'
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'sys.stderr.write("xyz"*%d);'
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'sys.stdout.write(sys.stdin.read())' % pipe_buf],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.addCleanup(p.stderr.close)
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self.addCleanup(p.stdin.close)
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string_to_write = b"abc"*pipe_buf
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(stdout, stderr) = p.communicate(string_to_write)
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self.assertEqual(stdout, string_to_write)
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|
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def test_writes_before_communicate(self):
|
|
# stdin.write before communicate()
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|
p = subprocess.Popen([sys.executable, "-c",
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'import sys,os;'
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'sys.stdout.write(sys.stdin.read())'],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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self.addCleanup(p.stdout.close)
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self.addCleanup(p.stderr.close)
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self.addCleanup(p.stdin.close)
|
|
p.stdin.write(b"banana")
|
|
(stdout, stderr) = p.communicate(b"split")
|
|
self.assertEqual(stdout, b"bananasplit")
|
|
self.assertStderrEqual(stderr, b"")
|
|
|
|
def test_universal_newlines(self):
|
|
p = subprocess.Popen([sys.executable, "-c",
|
|
'import sys,os;' + SETBINARY +
|
|
'sys.stdout.write("line1\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line2\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line3\\r\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line4\\r");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("\\nline5");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("\\nline6");'],
|
|
stdout=subprocess.PIPE,
|
|
universal_newlines=1)
|
|
self.addCleanup(p.stdout.close)
|
|
stdout = p.stdout.read()
|
|
self.assertEqual(stdout, "line1\nline2\nline3\nline4\nline5\nline6")
|
|
|
|
def test_universal_newlines_communicate(self):
|
|
# universal newlines through communicate()
|
|
p = subprocess.Popen([sys.executable, "-c",
|
|
'import sys,os;' + SETBINARY +
|
|
'sys.stdout.write("line1\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line2\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line3\\r\\n");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("line4\\r");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("\\nline5");'
|
|
'sys.stdout.flush();'
|
|
'sys.stdout.write("\\nline6");'],
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
|
universal_newlines=1)
|
|
self.addCleanup(p.stdout.close)
|
|
self.addCleanup(p.stderr.close)
|
|
(stdout, stderr) = p.communicate()
|
|
self.assertEqual(stdout, "line1\nline2\nline3\nline4\nline5\nline6")
|
|
|
|
def test_no_leaking(self):
|
|
# Make sure we leak no resources
|
|
if not mswindows:
|
|
max_handles = 1026 # too much for most UNIX systems
|
|
else:
|
|
max_handles = 2050 # too much for (at least some) Windows setups
|
|
handles = []
|
|
try:
|
|
for i in range(max_handles):
|
|
try:
|
|
handles.append(os.open(support.TESTFN,
|
|
os.O_WRONLY | os.O_CREAT))
|
|
except OSError as e:
|
|
if e.errno != errno.EMFILE:
|
|
raise
|
|
break
|
|
else:
|
|
self.skipTest("failed to reach the file descriptor limit "
|
|
"(tried %d)" % max_handles)
|
|
# Close a couple of them (should be enough for a subprocess)
|
|
for i in range(10):
|
|
os.close(handles.pop())
|
|
# Loop creating some subprocesses. If one of them leaks some fds,
|
|
# the next loop iteration will fail by reaching the max fd limit.
|
|
for i in range(15):
|
|
p = subprocess.Popen([sys.executable, "-c",
|
|
"import sys;"
|
|
"sys.stdout.write(sys.stdin.read())"],
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
data = p.communicate(b"lime")[0]
|
|
self.assertEqual(data, b"lime")
|
|
finally:
|
|
for h in handles:
|
|
os.close(h)
|
|
|
|
def test_list2cmdline(self):
|
|
self.assertEqual(subprocess.list2cmdline(['a b c', 'd', 'e']),
|
|
'"a b c" d e')
|
|
self.assertEqual(subprocess.list2cmdline(['ab"c', '\\', 'd']),
|
|
'ab\\"c \\ d')
|
|
self.assertEqual(subprocess.list2cmdline(['ab"c', ' \\', 'd']),
|
|
'ab\\"c " \\\\" d')
|
|
self.assertEqual(subprocess.list2cmdline(['a\\\\\\b', 'de fg', 'h']),
|
|
'a\\\\\\b "de fg" h')
|
|
self.assertEqual(subprocess.list2cmdline(['a\\"b', 'c', 'd']),
|
|
'a\\\\\\"b c d')
|
|
self.assertEqual(subprocess.list2cmdline(['a\\\\b c', 'd', 'e']),
|
|
'"a\\\\b c" d e')
|
|
self.assertEqual(subprocess.list2cmdline(['a\\\\b\\ c', 'd', 'e']),
|
|
'"a\\\\b\\ c" d e')
|
|
self.assertEqual(subprocess.list2cmdline(['ab', '']),
|
|
'ab ""')
|
|
|
|
|
|
def test_poll(self):
|
|
p = subprocess.Popen([sys.executable,
|
|
"-c", "import time; time.sleep(1)"])
|
|
count = 0
|
|
while p.poll() is None:
|
|
time.sleep(0.1)
|
|
count += 1
|
|
# We expect that the poll loop probably went around about 10 times,
|
|
# but, based on system scheduling we can't control, it's possible
|
|
# poll() never returned None. It "should be" very rare that it
|
|
# didn't go around at least twice.
|
|
self.assertGreaterEqual(count, 2)
|
|
# Subsequent invocations should just return the returncode
|
|
self.assertEqual(p.poll(), 0)
|
|
|
|
|
|
def test_wait(self):
|
|
p = subprocess.Popen([sys.executable,
|
|
"-c", "import time; time.sleep(2)"])
|
|
self.assertEqual(p.wait(), 0)
|
|
# Subsequent invocations should just return the returncode
|
|
self.assertEqual(p.wait(), 0)
|
|
|
|
|
|
def test_invalid_bufsize(self):
|
|
# an invalid type of the bufsize argument should raise
|
|
# TypeError.
|
|
with self.assertRaises(TypeError):
|
|
subprocess.Popen([sys.executable, "-c", "pass"], "orange")
|
|
|
|
def test_bufsize_is_none(self):
|
|
# bufsize=None should be the same as bufsize=0.
|
|
p = subprocess.Popen([sys.executable, "-c", "pass"], None)
|
|
self.assertEqual(p.wait(), 0)
|
|
# Again with keyword arg
|
|
p = subprocess.Popen([sys.executable, "-c", "pass"], bufsize=None)
|
|
self.assertEqual(p.wait(), 0)
|
|
|
|
def test_leaking_fds_on_error(self):
|
|
# see bug #5179: Popen leaks file descriptors to PIPEs if
|
|
# the child fails to execute; this will eventually exhaust
|
|
# the maximum number of open fds. 1024 seems a very common
|
|
# value for that limit, but Windows has 2048, so we loop
|
|
# 1024 times (each call leaked two fds).
|
|
for i in range(1024):
|
|
# Windows raises IOError. Others raise OSError.
|
|
with self.assertRaises(EnvironmentError) as c:
|
|
subprocess.Popen(['nonexisting_i_hope'],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
if c.exception.errno != errno.ENOENT: # ignore "no such file"
|
|
raise c.exception
|
|
|
|
def test_issue8780(self):
|
|
# Ensure that stdout is inherited from the parent
|
|
# if stdout=PIPE is not used
|
|
code = ';'.join((
|
|
'import subprocess, sys',
|
|
'retcode = subprocess.call('
|
|
"[sys.executable, '-c', 'print(\"Hello World!\")'])",
|
|
'assert retcode == 0'))
|
|
output = subprocess.check_output([sys.executable, '-c', code])
|
|
self.assertTrue(output.startswith(b'Hello World!'), ascii(output))
|
|
|
|
def test_handles_closed_on_exception(self):
|
|
# If CreateProcess exits with an error, ensure the
|
|
# duplicate output handles are released
|
|
ifhandle, ifname = mkstemp()
|
|
ofhandle, ofname = mkstemp()
|
|
efhandle, efname = mkstemp()
|
|
try:
|
|
subprocess.Popen (["*"], stdin=ifhandle, stdout=ofhandle,
|
|
stderr=efhandle)
|
|
except OSError:
|
|
os.close(ifhandle)
|
|
os.remove(ifname)
|
|
os.close(ofhandle)
|
|
os.remove(ofname)
|
|
os.close(efhandle)
|
|
os.remove(efname)
|
|
self.assertFalse(os.path.exists(ifname))
|
|
self.assertFalse(os.path.exists(ofname))
|
|
self.assertFalse(os.path.exists(efname))
|
|
|
|
|
|
# context manager
|
|
class _SuppressCoreFiles(object):
|
|
"""Try to prevent core files from being created."""
|
|
old_limit = None
|
|
|
|
def __enter__(self):
|
|
"""Try to save previous ulimit, then set it to (0, 0)."""
|
|
try:
|
|
import resource
|
|
self.old_limit = resource.getrlimit(resource.RLIMIT_CORE)
|
|
resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
|
|
except (ImportError, ValueError, resource.error):
|
|
pass
|
|
|
|
if sys.platform == 'darwin':
|
|
# Check if the 'Crash Reporter' on OSX was configured
|
|
# in 'Developer' mode and warn that it will get triggered
|
|
# when it is.
|
|
#
|
|
# This assumes that this context manager is used in tests
|
|
# that might trigger the next manager.
|
|
value = subprocess.Popen(['/usr/bin/defaults', 'read',
|
|
'com.apple.CrashReporter', 'DialogType'],
|
|
stdout=subprocess.PIPE).communicate()[0]
|
|
if value.strip() == b'developer':
|
|
print("this tests triggers the Crash Reporter, "
|
|
"that is intentional", end='')
|
|
sys.stdout.flush()
|
|
|
|
def __exit__(self, *args):
|
|
"""Return core file behavior to default."""
|
|
if self.old_limit is None:
|
|
return
|
|
try:
|
|
import resource
|
|
resource.setrlimit(resource.RLIMIT_CORE, self.old_limit)
|
|
except (ImportError, ValueError, resource.error):
|
|
pass
|
|
|
|
|
|
@unittest.skipIf(mswindows, "POSIX specific tests")
|
|
class POSIXProcessTestCase(BaseTestCase):
|
|
|
|
def test_exceptions(self):
|
|
nonexistent_dir = "/_this/pa.th/does/not/exist"
|
|
try:
|
|
os.chdir(nonexistent_dir)
|
|
except OSError as e:
|
|
# This avoids hard coding the errno value or the OS perror()
|
|
# string and instead capture the exception that we want to see
|
|
# below for comparison.
|
|
desired_exception = e
|
|
desired_exception.strerror += ': ' + repr(sys.executable)
|
|
else:
|
|
self.fail("chdir to nonexistant directory %s succeeded." %
|
|
nonexistent_dir)
|
|
|
|
# Error in the child re-raised in the parent.
|
|
try:
|
|
p = subprocess.Popen([sys.executable, "-c", ""],
|
|
cwd=nonexistent_dir)
|
|
except OSError as e:
|
|
# Test that the child process chdir failure actually makes
|
|
# it up to the parent process as the correct exception.
|
|
self.assertEqual(desired_exception.errno, e.errno)
|
|
self.assertEqual(desired_exception.strerror, e.strerror)
|
|
else:
|
|
self.fail("Expected OSError: %s" % desired_exception)
|
|
|
|
def test_restore_signals(self):
|
|
# Code coverage for both values of restore_signals to make sure it
|
|
# at least does not blow up.
|
|
# A test for behavior would be complex. Contributions welcome.
|
|
subprocess.call([sys.executable, "-c", ""], restore_signals=True)
|
|
subprocess.call([sys.executable, "-c", ""], restore_signals=False)
|
|
|
|
def test_start_new_session(self):
|
|
# For code coverage of calling setsid(). We don't care if we get an
|
|
# EPERM error from it depending on the test execution environment, that
|
|
# still indicates that it was called.
|
|
try:
|
|
output = subprocess.check_output(
|
|
[sys.executable, "-c",
|
|
"import os; print(os.getpgid(os.getpid()))"],
|
|
start_new_session=True)
|
|
except OSError as e:
|
|
if e.errno != errno.EPERM:
|
|
raise
|
|
else:
|
|
parent_pgid = os.getpgid(os.getpid())
|
|
child_pgid = int(output)
|
|
self.assertNotEqual(parent_pgid, child_pgid)
|
|
|
|
def test_run_abort(self):
|
|
# returncode handles signal termination
|
|
with _SuppressCoreFiles():
|
|
p = subprocess.Popen([sys.executable, "-c",
|
|
'import os; os.abort()'])
|
|
p.wait()
|
|
self.assertEqual(-p.returncode, signal.SIGABRT)
|
|
|
|
def test_preexec(self):
|
|
# DISCLAIMER: Setting environment variables is *not* a good use
|
|
# of a preexec_fn. This is merely a test.
|
|
p = subprocess.Popen([sys.executable, "-c",
|
|
'import sys,os;'
|
|
'sys.stdout.write(os.getenv("FRUIT"))'],
|
|
stdout=subprocess.PIPE,
|
|
preexec_fn=lambda: os.putenv("FRUIT", "apple"))
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertEqual(p.stdout.read(), b"apple")
|
|
|
|
def test_preexec_exception(self):
|
|
def raise_it():
|
|
raise ValueError("What if two swallows carried a coconut?")
|
|
try:
|
|
p = subprocess.Popen([sys.executable, "-c", ""],
|
|
preexec_fn=raise_it)
|
|
except RuntimeError as e:
|
|
self.assertTrue(
|
|
subprocess._posixsubprocess,
|
|
"Expected a ValueError from the preexec_fn")
|
|
except ValueError as e:
|
|
self.assertIn("coconut", e.args[0])
|
|
else:
|
|
self.fail("Exception raised by preexec_fn did not make it "
|
|
"to the parent process.")
|
|
|
|
@unittest.skipUnless(gc, "Requires a gc module.")
|
|
def test_preexec_gc_module_failure(self):
|
|
# This tests the code that disables garbage collection if the child
|
|
# process will execute any Python.
|
|
def raise_runtime_error():
|
|
raise RuntimeError("this shouldn't escape")
|
|
enabled = gc.isenabled()
|
|
orig_gc_disable = gc.disable
|
|
orig_gc_isenabled = gc.isenabled
|
|
try:
|
|
gc.disable()
|
|
self.assertFalse(gc.isenabled())
|
|
subprocess.call([sys.executable, '-c', ''],
|
|
preexec_fn=lambda: None)
|
|
self.assertFalse(gc.isenabled(),
|
|
"Popen enabled gc when it shouldn't.")
|
|
|
|
gc.enable()
|
|
self.assertTrue(gc.isenabled())
|
|
subprocess.call([sys.executable, '-c', ''],
|
|
preexec_fn=lambda: None)
|
|
self.assertTrue(gc.isenabled(), "Popen left gc disabled.")
|
|
|
|
gc.disable = raise_runtime_error
|
|
self.assertRaises(RuntimeError, subprocess.Popen,
|
|
[sys.executable, '-c', ''],
|
|
preexec_fn=lambda: None)
|
|
|
|
del gc.isenabled # force an AttributeError
|
|
self.assertRaises(AttributeError, subprocess.Popen,
|
|
[sys.executable, '-c', ''],
|
|
preexec_fn=lambda: None)
|
|
finally:
|
|
gc.disable = orig_gc_disable
|
|
gc.isenabled = orig_gc_isenabled
|
|
if not enabled:
|
|
gc.disable()
|
|
|
|
def test_args_string(self):
|
|
# args is a string
|
|
fd, fname = mkstemp()
|
|
# reopen in text mode
|
|
with open(fd, "w", errors="surrogateescape") as fobj:
|
|
fobj.write("#!/bin/sh\n")
|
|
fobj.write("exec '%s' -c 'import sys; sys.exit(47)'\n" %
|
|
sys.executable)
|
|
os.chmod(fname, 0o700)
|
|
p = subprocess.Popen(fname)
|
|
p.wait()
|
|
os.remove(fname)
|
|
self.assertEqual(p.returncode, 47)
|
|
|
|
def test_invalid_args(self):
|
|
# invalid arguments should raise ValueError
|
|
self.assertRaises(ValueError, subprocess.call,
|
|
[sys.executable, "-c",
|
|
"import sys; sys.exit(47)"],
|
|
startupinfo=47)
|
|
self.assertRaises(ValueError, subprocess.call,
|
|
[sys.executable, "-c",
|
|
"import sys; sys.exit(47)"],
|
|
creationflags=47)
|
|
|
|
def test_shell_sequence(self):
|
|
# Run command through the shell (sequence)
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "apple"
|
|
p = subprocess.Popen(["echo $FRUIT"], shell=1,
|
|
stdout=subprocess.PIPE,
|
|
env=newenv)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertEqual(p.stdout.read().strip(b" \t\r\n\f"), b"apple")
|
|
|
|
def test_shell_string(self):
|
|
# Run command through the shell (string)
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "apple"
|
|
p = subprocess.Popen("echo $FRUIT", shell=1,
|
|
stdout=subprocess.PIPE,
|
|
env=newenv)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertEqual(p.stdout.read().strip(b" \t\r\n\f"), b"apple")
|
|
|
|
def test_call_string(self):
|
|
# call() function with string argument on UNIX
|
|
fd, fname = mkstemp()
|
|
# reopen in text mode
|
|
with open(fd, "w", errors="surrogateescape") as fobj:
|
|
fobj.write("#!/bin/sh\n")
|
|
fobj.write("exec '%s' -c 'import sys; sys.exit(47)'\n" %
|
|
sys.executable)
|
|
os.chmod(fname, 0o700)
|
|
rc = subprocess.call(fname)
|
|
os.remove(fname)
|
|
self.assertEqual(rc, 47)
|
|
|
|
def test_specific_shell(self):
|
|
# Issue #9265: Incorrect name passed as arg[0].
|
|
shells = []
|
|
for prefix in ['/bin', '/usr/bin/', '/usr/local/bin']:
|
|
for name in ['bash', 'ksh']:
|
|
sh = os.path.join(prefix, name)
|
|
if os.path.isfile(sh):
|
|
shells.append(sh)
|
|
if not shells: # Will probably work for any shell but csh.
|
|
self.skipTest("bash or ksh required for this test")
|
|
sh = '/bin/sh'
|
|
if os.path.isfile(sh) and not os.path.islink(sh):
|
|
# Test will fail if /bin/sh is a symlink to csh.
|
|
shells.append(sh)
|
|
for sh in shells:
|
|
p = subprocess.Popen("echo $0", executable=sh, shell=True,
|
|
stdout=subprocess.PIPE)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertEqual(p.stdout.read().strip(), bytes(sh, 'ascii'))
|
|
|
|
def _kill_process(self, method, *args):
|
|
# Do not inherit file handles from the parent.
|
|
# It should fix failures on some platforms.
|
|
p = subprocess.Popen([sys.executable, "-c", """if 1:
|
|
import sys, time
|
|
sys.stdout.write('x\\n')
|
|
sys.stdout.flush()
|
|
time.sleep(30)
|
|
"""],
|
|
close_fds=True,
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
# Wait for the interpreter to be completely initialized before
|
|
# sending any signal.
|
|
p.stdout.read(1)
|
|
getattr(p, method)(*args)
|
|
return p
|
|
|
|
def test_send_signal(self):
|
|
p = self._kill_process('send_signal', signal.SIGINT)
|
|
_, stderr = p.communicate()
|
|
self.assertIn(b'KeyboardInterrupt', stderr)
|
|
self.assertNotEqual(p.wait(), 0)
|
|
|
|
def test_kill(self):
|
|
p = self._kill_process('kill')
|
|
_, stderr = p.communicate()
|
|
self.assertStderrEqual(stderr, b'')
|
|
self.assertEqual(p.wait(), -signal.SIGKILL)
|
|
|
|
def test_terminate(self):
|
|
p = self._kill_process('terminate')
|
|
_, stderr = p.communicate()
|
|
self.assertStderrEqual(stderr, b'')
|
|
self.assertEqual(p.wait(), -signal.SIGTERM)
|
|
|
|
def test_surrogates_error_message(self):
|
|
def prepare():
|
|
raise ValueError("surrogate:\uDCff")
|
|
|
|
try:
|
|
subprocess.call(
|
|
[sys.executable, "-c", "pass"],
|
|
preexec_fn=prepare)
|
|
except ValueError as err:
|
|
# Pure Python implementations keeps the message
|
|
self.assertIsNone(subprocess._posixsubprocess)
|
|
self.assertEqual(str(err), "surrogate:\uDCff")
|
|
except RuntimeError as err:
|
|
# _posixsubprocess uses a default message
|
|
self.assertIsNotNone(subprocess._posixsubprocess)
|
|
self.assertEqual(str(err), "Exception occurred in preexec_fn.")
|
|
else:
|
|
self.fail("Expected ValueError or RuntimeError")
|
|
|
|
def test_undecodable_env(self):
|
|
for key, value in (('test', 'abc\uDCFF'), ('test\uDCFF', '42')):
|
|
# test str with surrogates
|
|
script = "import os; print(ascii(os.getenv(%s)))" % repr(key)
|
|
env = os.environ.copy()
|
|
env[key] = value
|
|
# Use C locale to get ascii for the locale encoding to force
|
|
# surrogate-escaping of \xFF in the child process; otherwise it can
|
|
# be decoded as-is if the default locale is latin-1.
|
|
env['LC_ALL'] = 'C'
|
|
stdout = subprocess.check_output(
|
|
[sys.executable, "-c", script],
|
|
env=env)
|
|
stdout = stdout.rstrip(b'\n\r')
|
|
self.assertEqual(stdout.decode('ascii'), ascii(value))
|
|
|
|
# test bytes
|
|
key = key.encode("ascii", "surrogateescape")
|
|
value = value.encode("ascii", "surrogateescape")
|
|
script = "import os; print(ascii(os.getenvb(%s)))" % repr(key)
|
|
env = os.environ.copy()
|
|
env[key] = value
|
|
stdout = subprocess.check_output(
|
|
[sys.executable, "-c", script],
|
|
env=env)
|
|
stdout = stdout.rstrip(b'\n\r')
|
|
self.assertEqual(stdout.decode('ascii'), ascii(value))
|
|
|
|
def test_bytes_program(self):
|
|
abs_program = os.fsencode(sys.executable)
|
|
path, program = os.path.split(sys.executable)
|
|
program = os.fsencode(program)
|
|
|
|
# absolute bytes path
|
|
exitcode = subprocess.call([abs_program, "-c", "pass"])
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
# bytes program, unicode PATH
|
|
env = os.environ.copy()
|
|
env["PATH"] = path
|
|
exitcode = subprocess.call([program, "-c", "pass"], env=env)
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
# bytes program, bytes PATH
|
|
envb = os.environb.copy()
|
|
envb[b"PATH"] = os.fsencode(path)
|
|
exitcode = subprocess.call([program, "-c", "pass"], env=envb)
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
|
|
@unittest.skipUnless(mswindows, "Windows specific tests")
|
|
class Win32ProcessTestCase(BaseTestCase):
|
|
|
|
def test_startupinfo(self):
|
|
# startupinfo argument
|
|
# We uses hardcoded constants, because we do not want to
|
|
# depend on win32all.
|
|
STARTF_USESHOWWINDOW = 1
|
|
SW_MAXIMIZE = 3
|
|
startupinfo = subprocess.STARTUPINFO()
|
|
startupinfo.dwFlags = STARTF_USESHOWWINDOW
|
|
startupinfo.wShowWindow = SW_MAXIMIZE
|
|
# Since Python is a console process, it won't be affected
|
|
# by wShowWindow, but the argument should be silently
|
|
# ignored
|
|
subprocess.call([sys.executable, "-c", "import sys; sys.exit(0)"],
|
|
startupinfo=startupinfo)
|
|
|
|
def test_creationflags(self):
|
|
# creationflags argument
|
|
CREATE_NEW_CONSOLE = 16
|
|
sys.stderr.write(" a DOS box should flash briefly ...\n")
|
|
subprocess.call(sys.executable +
|
|
' -c "import time; time.sleep(0.25)"',
|
|
creationflags=CREATE_NEW_CONSOLE)
|
|
|
|
def test_invalid_args(self):
|
|
# invalid arguments should raise ValueError
|
|
self.assertRaises(ValueError, subprocess.call,
|
|
[sys.executable, "-c",
|
|
"import sys; sys.exit(47)"],
|
|
preexec_fn=lambda: 1)
|
|
self.assertRaises(ValueError, subprocess.call,
|
|
[sys.executable, "-c",
|
|
"import sys; sys.exit(47)"],
|
|
stdout=subprocess.PIPE,
|
|
close_fds=True)
|
|
|
|
def test_close_fds(self):
|
|
# close file descriptors
|
|
rc = subprocess.call([sys.executable, "-c",
|
|
"import sys; sys.exit(47)"],
|
|
close_fds=True)
|
|
self.assertEqual(rc, 47)
|
|
|
|
def test_shell_sequence(self):
|
|
# Run command through the shell (sequence)
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "physalis"
|
|
p = subprocess.Popen(["set"], shell=1,
|
|
stdout=subprocess.PIPE,
|
|
env=newenv)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertIn(b"physalis", p.stdout.read())
|
|
|
|
def test_shell_string(self):
|
|
# Run command through the shell (string)
|
|
newenv = os.environ.copy()
|
|
newenv["FRUIT"] = "physalis"
|
|
p = subprocess.Popen("set", shell=1,
|
|
stdout=subprocess.PIPE,
|
|
env=newenv)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertIn(b"physalis", p.stdout.read())
|
|
|
|
def test_call_string(self):
|
|
# call() function with string argument on Windows
|
|
rc = subprocess.call(sys.executable +
|
|
' -c "import sys; sys.exit(47)"')
|
|
self.assertEqual(rc, 47)
|
|
|
|
def _kill_process(self, method, *args):
|
|
# Some win32 buildbot raises EOFError if stdin is inherited
|
|
p = subprocess.Popen([sys.executable, "-c", """if 1:
|
|
import sys, time
|
|
sys.stdout.write('x\\n')
|
|
sys.stdout.flush()
|
|
time.sleep(30)
|
|
"""],
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
self.addCleanup(p.stdout.close)
|
|
self.addCleanup(p.stderr.close)
|
|
self.addCleanup(p.stdin.close)
|
|
# Wait for the interpreter to be completely initialized before
|
|
# sending any signal.
|
|
p.stdout.read(1)
|
|
getattr(p, method)(*args)
|
|
_, stderr = p.communicate()
|
|
self.assertStderrEqual(stderr, b'')
|
|
returncode = p.wait()
|
|
self.assertNotEqual(returncode, 0)
|
|
|
|
def test_send_signal(self):
|
|
self._kill_process('send_signal', signal.SIGTERM)
|
|
|
|
def test_kill(self):
|
|
self._kill_process('kill')
|
|
|
|
def test_terminate(self):
|
|
self._kill_process('terminate')
|
|
|
|
|
|
# The module says:
|
|
# "NB This only works (and is only relevant) for UNIX."
|
|
#
|
|
# Actually, getoutput should work on any platform with an os.popen, but
|
|
# I'll take the comment as given, and skip this suite.
|
|
@unittest.skipUnless(os.name == 'posix', "only relevant for UNIX")
|
|
class CommandTests(unittest.TestCase):
|
|
def test_getoutput(self):
|
|
self.assertEqual(subprocess.getoutput('echo xyzzy'), 'xyzzy')
|
|
self.assertEqual(subprocess.getstatusoutput('echo xyzzy'),
|
|
(0, 'xyzzy'))
|
|
|
|
# we use mkdtemp in the next line to create an empty directory
|
|
# under our exclusive control; from that, we can invent a pathname
|
|
# that we _know_ won't exist. This is guaranteed to fail.
|
|
dir = None
|
|
try:
|
|
dir = tempfile.mkdtemp()
|
|
name = os.path.join(dir, "foo")
|
|
|
|
status, output = subprocess.getstatusoutput('cat ' + name)
|
|
self.assertNotEqual(status, 0)
|
|
finally:
|
|
if dir is not None:
|
|
os.rmdir(dir)
|
|
|
|
|
|
@unittest.skipUnless(getattr(subprocess, '_has_poll', False),
|
|
"poll system call not supported")
|
|
class ProcessTestCaseNoPoll(ProcessTestCase):
|
|
def setUp(self):
|
|
subprocess._has_poll = False
|
|
ProcessTestCase.setUp(self)
|
|
|
|
def tearDown(self):
|
|
subprocess._has_poll = True
|
|
ProcessTestCase.tearDown(self)
|
|
|
|
|
|
@unittest.skipUnless(getattr(subprocess, '_posixsubprocess', False),
|
|
"_posixsubprocess extension module not found.")
|
|
class ProcessTestCasePOSIXPurePython(ProcessTestCase, POSIXProcessTestCase):
|
|
def setUp(self):
|
|
subprocess._posixsubprocess = None
|
|
ProcessTestCase.setUp(self)
|
|
POSIXProcessTestCase.setUp(self)
|
|
|
|
def tearDown(self):
|
|
subprocess._posixsubprocess = sys.modules['_posixsubprocess']
|
|
POSIXProcessTestCase.tearDown(self)
|
|
ProcessTestCase.tearDown(self)
|
|
|
|
|
|
class HelperFunctionTests(unittest.TestCase):
|
|
@unittest.skipIf(mswindows, "errno and EINTR make no sense on windows")
|
|
def test_eintr_retry_call(self):
|
|
record_calls = []
|
|
def fake_os_func(*args):
|
|
record_calls.append(args)
|
|
if len(record_calls) == 2:
|
|
raise OSError(errno.EINTR, "fake interrupted system call")
|
|
return tuple(reversed(args))
|
|
|
|
self.assertEqual((999, 256),
|
|
subprocess._eintr_retry_call(fake_os_func, 256, 999))
|
|
self.assertEqual([(256, 999)], record_calls)
|
|
# This time there will be an EINTR so it will loop once.
|
|
self.assertEqual((666,),
|
|
subprocess._eintr_retry_call(fake_os_func, 666))
|
|
self.assertEqual([(256, 999), (666,), (666,)], record_calls)
|
|
|
|
|
|
@unittest.skipUnless(mswindows, "Windows-specific tests")
|
|
class CommandsWithSpaces (BaseTestCase):
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
f, fname = mkstemp(".py", "te st")
|
|
self.fname = fname.lower ()
|
|
os.write(f, b"import sys;"
|
|
b"sys.stdout.write('%d %s' % (len(sys.argv), [a.lower () for a in sys.argv]))"
|
|
)
|
|
os.close(f)
|
|
|
|
def tearDown(self):
|
|
os.remove(self.fname)
|
|
super().tearDown()
|
|
|
|
def with_spaces(self, *args, **kwargs):
|
|
kwargs['stdout'] = subprocess.PIPE
|
|
p = subprocess.Popen(*args, **kwargs)
|
|
self.addCleanup(p.stdout.close)
|
|
self.assertEqual(
|
|
p.stdout.read ().decode("mbcs"),
|
|
"2 [%r, 'ab cd']" % self.fname
|
|
)
|
|
|
|
def test_shell_string_with_spaces(self):
|
|
# call() function with string argument with spaces on Windows
|
|
self.with_spaces('"%s" "%s" "%s"' % (sys.executable, self.fname,
|
|
"ab cd"), shell=1)
|
|
|
|
def test_shell_sequence_with_spaces(self):
|
|
# call() function with sequence argument with spaces on Windows
|
|
self.with_spaces([sys.executable, self.fname, "ab cd"], shell=1)
|
|
|
|
def test_noshell_string_with_spaces(self):
|
|
# call() function with string argument with spaces on Windows
|
|
self.with_spaces('"%s" "%s" "%s"' % (sys.executable, self.fname,
|
|
"ab cd"))
|
|
|
|
def test_noshell_sequence_with_spaces(self):
|
|
# call() function with sequence argument with spaces on Windows
|
|
self.with_spaces([sys.executable, self.fname, "ab cd"])
|
|
|
|
|
|
class ContextManagerTests(ProcessTestCase):
|
|
|
|
def test_pipe(self):
|
|
with subprocess.Popen([sys.executable, "-c",
|
|
"import sys;"
|
|
"sys.stdout.write('stdout');"
|
|
"sys.stderr.write('stderr');"],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE) as proc:
|
|
self.assertEqual(proc.stdout.read(), b"stdout")
|
|
self.assertStderrEqual(proc.stderr.read(), b"stderr")
|
|
|
|
self.assertTrue(proc.stdout.closed)
|
|
self.assertTrue(proc.stderr.closed)
|
|
|
|
def test_returncode(self):
|
|
with subprocess.Popen([sys.executable, "-c",
|
|
"import sys; sys.exit(100)"]) as proc:
|
|
proc.wait()
|
|
self.assertEqual(proc.returncode, 100)
|
|
|
|
def test_communicate_stdin(self):
|
|
with subprocess.Popen([sys.executable, "-c",
|
|
"import sys;"
|
|
"sys.exit(sys.stdin.read() == 'context')"],
|
|
stdin=subprocess.PIPE) as proc:
|
|
proc.communicate(b"context")
|
|
self.assertEqual(proc.returncode, 1)
|
|
|
|
def test_invalid_args(self):
|
|
with self.assertRaises(EnvironmentError) as c:
|
|
with subprocess.Popen(['nonexisting_i_hope'],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE) as proc:
|
|
pass
|
|
|
|
if c.exception.errno != errno.ENOENT: # ignore "no such file"
|
|
raise c.exception
|
|
|
|
|
|
def test_main():
|
|
unit_tests = (ProcessTestCase,
|
|
POSIXProcessTestCase,
|
|
Win32ProcessTestCase,
|
|
ProcessTestCasePOSIXPurePython,
|
|
CommandTests,
|
|
ProcessTestCaseNoPoll,
|
|
HelperFunctionTests,
|
|
CommandsWithSpaces,
|
|
ContextManagerTests,
|
|
DeprecationWarningTests)
|
|
|
|
support.run_unittest(*unit_tests)
|
|
support.reap_children()
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|