850 lines
34 KiB
Python
850 lines
34 KiB
Python
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# Tests invocation of the interpreter with various command line arguments
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# Most tests are executed with environment variables ignored
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# See test_cmd_line_script.py for testing of script execution
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import os
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import subprocess
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import sys
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import tempfile
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import textwrap
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import unittest
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from test import support
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from test.support.script_helper import (
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spawn_python, kill_python, assert_python_ok, assert_python_failure,
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interpreter_requires_environment
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)
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# Debug build?
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Py_DEBUG = hasattr(sys, "gettotalrefcount")
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# XXX (ncoghlan): Move to script_helper and make consistent with run_python
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def _kill_python_and_exit_code(p):
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data = kill_python(p)
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returncode = p.wait()
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return data, returncode
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class CmdLineTest(unittest.TestCase):
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def test_directories(self):
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assert_python_failure('.')
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assert_python_failure('< .')
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def verify_valid_flag(self, cmd_line):
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rc, out, err = assert_python_ok(*cmd_line)
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self.assertTrue(out == b'' or out.endswith(b'\n'))
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self.assertNotIn(b'Traceback', out)
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self.assertNotIn(b'Traceback', err)
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def test_optimize(self):
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self.verify_valid_flag('-O')
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self.verify_valid_flag('-OO')
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def test_site_flag(self):
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self.verify_valid_flag('-S')
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def test_usage(self):
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rc, out, err = assert_python_ok('-h')
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lines = out.splitlines()
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self.assertIn(b'usage', lines[0])
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# The first line contains the program name,
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# but the rest should be ASCII-only
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b''.join(lines[1:]).decode('ascii')
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def test_version(self):
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version = ('Python %d.%d' % sys.version_info[:2]).encode("ascii")
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for switch in '-V', '--version', '-VV':
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rc, out, err = assert_python_ok(switch)
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self.assertFalse(err.startswith(version))
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self.assertTrue(out.startswith(version))
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def test_verbose(self):
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# -v causes imports to write to stderr. If the write to
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# stderr itself causes an import to happen (for the output
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# codec), a recursion loop can occur.
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rc, out, err = assert_python_ok('-v')
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self.assertNotIn(b'stack overflow', err)
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rc, out, err = assert_python_ok('-vv')
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self.assertNotIn(b'stack overflow', err)
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@unittest.skipIf(interpreter_requires_environment(),
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'Cannot run -E tests when PYTHON env vars are required.')
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def test_xoptions(self):
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def get_xoptions(*args):
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# use subprocess module directly because test.support.script_helper adds
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# "-X faulthandler" to the command line
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args = (sys.executable, '-E') + args
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args += ('-c', 'import sys; print(sys._xoptions)')
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out = subprocess.check_output(args)
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opts = eval(out.splitlines()[0])
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return opts
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opts = get_xoptions()
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self.assertEqual(opts, {})
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opts = get_xoptions('-Xa', '-Xb=c,d=e')
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self.assertEqual(opts, {'a': True, 'b': 'c,d=e'})
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def test_showrefcount(self):
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def run_python(*args):
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# this is similar to assert_python_ok but doesn't strip
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# the refcount from stderr. It can be replaced once
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# assert_python_ok stops doing that.
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cmd = [sys.executable]
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cmd.extend(args)
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PIPE = subprocess.PIPE
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p = subprocess.Popen(cmd, stdout=PIPE, stderr=PIPE)
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out, err = p.communicate()
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p.stdout.close()
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p.stderr.close()
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rc = p.returncode
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self.assertEqual(rc, 0)
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return rc, out, err
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code = 'import sys; print(sys._xoptions)'
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# normally the refcount is hidden
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rc, out, err = run_python('-c', code)
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self.assertEqual(out.rstrip(), b'{}')
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self.assertEqual(err, b'')
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# "-X showrefcount" shows the refcount, but only in debug builds
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rc, out, err = run_python('-X', 'showrefcount', '-c', code)
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self.assertEqual(out.rstrip(), b"{'showrefcount': True}")
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if Py_DEBUG:
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self.assertRegex(err, br'^\[\d+ refs, \d+ blocks\]')
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else:
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self.assertEqual(err, b'')
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def test_run_module(self):
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# Test expected operation of the '-m' switch
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# Switch needs an argument
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assert_python_failure('-m')
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# Check we get an error for a nonexistent module
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assert_python_failure('-m', 'fnord43520xyz')
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# Check the runpy module also gives an error for
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# a nonexistent module
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assert_python_failure('-m', 'runpy', 'fnord43520xyz')
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# All good if module is located and run successfully
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assert_python_ok('-m', 'timeit', '-n', '1')
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def test_run_module_bug1764407(self):
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# -m and -i need to play well together
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# Runs the timeit module and checks the __main__
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# namespace has been populated appropriately
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p = spawn_python('-i', '-m', 'timeit', '-n', '1')
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p.stdin.write(b'Timer\n')
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p.stdin.write(b'exit()\n')
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data = kill_python(p)
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self.assertTrue(data.find(b'1 loop') != -1)
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self.assertTrue(data.find(b'__main__.Timer') != -1)
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def test_run_code(self):
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# Test expected operation of the '-c' switch
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# Switch needs an argument
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assert_python_failure('-c')
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# Check we get an error for an uncaught exception
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assert_python_failure('-c', 'raise Exception')
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# All good if execution is successful
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assert_python_ok('-c', 'pass')
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@unittest.skipUnless(support.FS_NONASCII, 'need support.FS_NONASCII')
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def test_non_ascii(self):
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# Test handling of non-ascii data
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command = ("assert(ord(%r) == %s)"
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% (support.FS_NONASCII, ord(support.FS_NONASCII)))
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assert_python_ok('-c', command)
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# On Windows, pass bytes to subprocess doesn't test how Python decodes the
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# command line, but how subprocess does decode bytes to unicode. Python
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# doesn't decode the command line because Windows provides directly the
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# arguments as unicode (using wmain() instead of main()).
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@unittest.skipIf(sys.platform == 'win32',
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'Windows has a native unicode API')
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def test_undecodable_code(self):
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undecodable = b"\xff"
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env = os.environ.copy()
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# Use C locale to get ascii for the locale encoding
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env['LC_ALL'] = 'C'
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env['PYTHONCOERCECLOCALE'] = '0'
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code = (
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b'import locale; '
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b'print(ascii("' + undecodable + b'"), '
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b'locale.getpreferredencoding())')
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p = subprocess.Popen(
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[sys.executable, "-c", code],
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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env=env)
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stdout, stderr = p.communicate()
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if p.returncode == 1:
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# _Py_char2wchar() decoded b'\xff' as '\udcff' (b'\xff' is not
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# decodable from ASCII) and run_command() failed on
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# PyUnicode_AsUTF8String(). This is the expected behaviour on
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# Linux.
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pattern = b"Unable to decode the command from the command line:"
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elif p.returncode == 0:
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# _Py_char2wchar() decoded b'\xff' as '\xff' even if the locale is
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# C and the locale encoding is ASCII. It occurs on FreeBSD, Solaris
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# and Mac OS X.
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pattern = b"'\\xff' "
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# The output is followed by the encoding name, an alias to ASCII.
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# Examples: "US-ASCII" or "646" (ISO 646, on Solaris).
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else:
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raise AssertionError("Unknown exit code: %s, output=%a" % (p.returncode, stdout))
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if not stdout.startswith(pattern):
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raise AssertionError("%a doesn't start with %a" % (stdout, pattern))
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@unittest.skipIf(sys.platform == 'win32',
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'Windows has a native unicode API')
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def test_invalid_utf8_arg(self):
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# bpo-35883: Py_DecodeLocale() must escape b'\xfd\xbf\xbf\xbb\xba\xba'
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# byte sequence with surrogateescape rather than decoding it as the
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# U+7fffbeba character which is outside the [U+0000; U+10ffff] range of
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# Python Unicode characters.
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#
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# Test with default config, in the C locale, in the Python UTF-8 Mode.
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code = 'import sys, os; s=os.fsencode(sys.argv[1]); print(ascii(s))'
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base_cmd = [sys.executable, '-c', code]
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def run_default(arg):
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cmd = [sys.executable, '-c', code, arg]
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return subprocess.run(cmd, stdout=subprocess.PIPE, text=True)
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def run_c_locale(arg):
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cmd = [sys.executable, '-c', code, arg]
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env = dict(os.environ)
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env['LC_ALL'] = 'C'
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return subprocess.run(cmd, stdout=subprocess.PIPE,
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text=True, env=env)
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def run_utf8_mode(arg):
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cmd = [sys.executable, '-X', 'utf8', '-c', code, arg]
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return subprocess.run(cmd, stdout=subprocess.PIPE, text=True)
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valid_utf8 = 'e:\xe9, euro:\u20ac, non-bmp:\U0010ffff'.encode('utf-8')
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# invalid UTF-8 byte sequences with a valid UTF-8 sequence
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# in the middle.
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invalid_utf8 = (
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b'\xff' # invalid byte
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b'\xc3\xff' # invalid byte sequence
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b'\xc3\xa9' # valid utf-8: U+00E9 character
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b'\xed\xa0\x80' # lone surrogate character (invalid)
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b'\xfd\xbf\xbf\xbb\xba\xba' # character outside [U+0000; U+10ffff]
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)
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test_args = [valid_utf8, invalid_utf8]
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for run_cmd in (run_default, run_c_locale, run_utf8_mode):
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with self.subTest(run_cmd=run_cmd):
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for arg in test_args:
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proc = run_cmd(arg)
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self.assertEqual(proc.stdout.rstrip(), ascii(arg))
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@unittest.skipUnless((sys.platform == 'darwin' or
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support.is_android), 'test specific to Mac OS X and Android')
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def test_osx_android_utf8(self):
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text = 'e:\xe9, euro:\u20ac, non-bmp:\U0010ffff'.encode('utf-8')
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code = "import sys; print(ascii(sys.argv[1]))"
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decoded = text.decode('utf-8', 'surrogateescape')
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expected = ascii(decoded).encode('ascii') + b'\n'
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env = os.environ.copy()
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# C locale gives ASCII locale encoding, but Python uses UTF-8
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# to parse the command line arguments on Mac OS X and Android.
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env['LC_ALL'] = 'C'
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p = subprocess.Popen(
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(sys.executable, "-c", code, text),
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stdout=subprocess.PIPE,
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env=env)
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stdout, stderr = p.communicate()
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self.assertEqual(stdout, expected)
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self.assertEqual(p.returncode, 0)
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def test_non_interactive_output_buffering(self):
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code = textwrap.dedent("""
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import sys
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out = sys.stdout
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print(out.isatty(), out.write_through, out.line_buffering)
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err = sys.stderr
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print(err.isatty(), err.write_through, err.line_buffering)
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""")
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args = [sys.executable, '-c', code]
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proc = subprocess.run(args, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, text=True, check=True)
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self.assertEqual(proc.stdout,
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'False False False\n'
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'False False True\n')
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def test_unbuffered_output(self):
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# Test expected operation of the '-u' switch
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for stream in ('stdout', 'stderr'):
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# Binary is unbuffered
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code = ("import os, sys; sys.%s.buffer.write(b'x'); os._exit(0)"
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% stream)
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rc, out, err = assert_python_ok('-u', '-c', code)
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data = err if stream == 'stderr' else out
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self.assertEqual(data, b'x', "binary %s not unbuffered" % stream)
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# Text is unbuffered
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code = ("import os, sys; sys.%s.write('x'); os._exit(0)"
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% stream)
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rc, out, err = assert_python_ok('-u', '-c', code)
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data = err if stream == 'stderr' else out
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self.assertEqual(data, b'x', "text %s not unbuffered" % stream)
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def test_unbuffered_input(self):
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# sys.stdin still works with '-u'
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code = ("import sys; sys.stdout.write(sys.stdin.read(1))")
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p = spawn_python('-u', '-c', code)
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p.stdin.write(b'x')
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p.stdin.flush()
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data, rc = _kill_python_and_exit_code(p)
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self.assertEqual(rc, 0)
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self.assertTrue(data.startswith(b'x'), data)
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def test_large_PYTHONPATH(self):
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path1 = "ABCDE" * 100
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path2 = "FGHIJ" * 100
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path = path1 + os.pathsep + path2
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code = """if 1:
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import sys
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path = ":".join(sys.path)
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path = path.encode("ascii", "backslashreplace")
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sys.stdout.buffer.write(path)"""
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rc, out, err = assert_python_ok('-S', '-c', code,
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PYTHONPATH=path)
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self.assertIn(path1.encode('ascii'), out)
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self.assertIn(path2.encode('ascii'), out)
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def test_empty_PYTHONPATH_issue16309(self):
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# On Posix, it is documented that setting PATH to the
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# empty string is equivalent to not setting PATH at all,
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# which is an exception to the rule that in a string like
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# "/bin::/usr/bin" the empty string in the middle gets
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# interpreted as '.'
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code = """if 1:
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import sys
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path = ":".join(sys.path)
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path = path.encode("ascii", "backslashreplace")
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sys.stdout.buffer.write(path)"""
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rc1, out1, err1 = assert_python_ok('-c', code, PYTHONPATH="")
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rc2, out2, err2 = assert_python_ok('-c', code, __isolated=False)
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# regarding to Posix specification, outputs should be equal
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# for empty and unset PYTHONPATH
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self.assertEqual(out1, out2)
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|
|
def test_displayhook_unencodable(self):
|
||
|
|
for encoding in ('ascii', 'latin-1', 'utf-8'):
|
||
|
|
env = os.environ.copy()
|
||
|
|
env['PYTHONIOENCODING'] = encoding
|
||
|
|
p = subprocess.Popen(
|
||
|
|
[sys.executable, '-i'],
|
||
|
|
stdin=subprocess.PIPE,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.STDOUT,
|
||
|
|
env=env)
|
||
|
|
# non-ascii, surrogate, non-BMP printable, non-BMP unprintable
|
||
|
|
text = "a=\xe9 b=\uDC80 c=\U00010000 d=\U0010FFFF"
|
||
|
|
p.stdin.write(ascii(text).encode('ascii') + b"\n")
|
||
|
|
p.stdin.write(b'exit()\n')
|
||
|
|
data = kill_python(p)
|
||
|
|
escaped = repr(text).encode(encoding, 'backslashreplace')
|
||
|
|
self.assertIn(escaped, data)
|
||
|
|
|
||
|
|
def check_input(self, code, expected):
|
||
|
|
with tempfile.NamedTemporaryFile("wb+") as stdin:
|
||
|
|
sep = os.linesep.encode('ASCII')
|
||
|
|
stdin.write(sep.join((b'abc', b'def')))
|
||
|
|
stdin.flush()
|
||
|
|
stdin.seek(0)
|
||
|
|
with subprocess.Popen(
|
||
|
|
(sys.executable, "-c", code),
|
||
|
|
stdin=stdin, stdout=subprocess.PIPE) as proc:
|
||
|
|
stdout, stderr = proc.communicate()
|
||
|
|
self.assertEqual(stdout.rstrip(), expected)
|
||
|
|
|
||
|
|
def test_stdin_readline(self):
|
||
|
|
# Issue #11272: check that sys.stdin.readline() replaces '\r\n' by '\n'
|
||
|
|
# on Windows (sys.stdin is opened in binary mode)
|
||
|
|
self.check_input(
|
||
|
|
"import sys; print(repr(sys.stdin.readline()))",
|
||
|
|
b"'abc\\n'")
|
||
|
|
|
||
|
|
def test_builtin_input(self):
|
||
|
|
# Issue #11272: check that input() strips newlines ('\n' or '\r\n')
|
||
|
|
self.check_input(
|
||
|
|
"print(repr(input()))",
|
||
|
|
b"'abc'")
|
||
|
|
|
||
|
|
def test_output_newline(self):
|
||
|
|
# Issue 13119 Newline for print() should be \r\n on Windows.
|
||
|
|
code = """if 1:
|
||
|
|
import sys
|
||
|
|
print(1)
|
||
|
|
print(2)
|
||
|
|
print(3, file=sys.stderr)
|
||
|
|
print(4, file=sys.stderr)"""
|
||
|
|
rc, out, err = assert_python_ok('-c', code)
|
||
|
|
|
||
|
|
if sys.platform == 'win32':
|
||
|
|
self.assertEqual(b'1\r\n2\r\n', out)
|
||
|
|
self.assertEqual(b'3\r\n4\r\n', err)
|
||
|
|
else:
|
||
|
|
self.assertEqual(b'1\n2\n', out)
|
||
|
|
self.assertEqual(b'3\n4\n', err)
|
||
|
|
|
||
|
|
def test_unmached_quote(self):
|
||
|
|
# Issue #10206: python program starting with unmatched quote
|
||
|
|
# spewed spaces to stdout
|
||
|
|
rc, out, err = assert_python_failure('-c', "'")
|
||
|
|
self.assertRegex(err.decode('ascii', 'ignore'), 'SyntaxError')
|
||
|
|
self.assertEqual(b'', out)
|
||
|
|
|
||
|
|
def test_stdout_flush_at_shutdown(self):
|
||
|
|
# Issue #5319: if stdout.flush() fails at shutdown, an error should
|
||
|
|
# be printed out.
|
||
|
|
code = """if 1:
|
||
|
|
import os, sys, test.support
|
||
|
|
test.support.SuppressCrashReport().__enter__()
|
||
|
|
sys.stdout.write('x')
|
||
|
|
os.close(sys.stdout.fileno())"""
|
||
|
|
rc, out, err = assert_python_failure('-c', code)
|
||
|
|
self.assertEqual(b'', out)
|
||
|
|
self.assertEqual(120, rc)
|
||
|
|
self.assertRegex(err.decode('ascii', 'ignore'),
|
||
|
|
'Exception ignored in.*\nOSError: .*')
|
||
|
|
|
||
|
|
def test_closed_stdout(self):
|
||
|
|
# Issue #13444: if stdout has been explicitly closed, we should
|
||
|
|
# not attempt to flush it at shutdown.
|
||
|
|
code = "import sys; sys.stdout.close()"
|
||
|
|
rc, out, err = assert_python_ok('-c', code)
|
||
|
|
self.assertEqual(b'', err)
|
||
|
|
|
||
|
|
# Issue #7111: Python should work without standard streams
|
||
|
|
|
||
|
|
@unittest.skipIf(os.name != 'posix', "test needs POSIX semantics")
|
||
|
|
@unittest.skipIf(sys.platform == "vxworks",
|
||
|
|
"test needs preexec support in subprocess.Popen")
|
||
|
|
def _test_no_stdio(self, streams):
|
||
|
|
code = """if 1:
|
||
|
|
import os, sys
|
||
|
|
for i, s in enumerate({streams}):
|
||
|
|
if getattr(sys, s) is not None:
|
||
|
|
os._exit(i + 1)
|
||
|
|
os._exit(42)""".format(streams=streams)
|
||
|
|
def preexec():
|
||
|
|
if 'stdin' in streams:
|
||
|
|
os.close(0)
|
||
|
|
if 'stdout' in streams:
|
||
|
|
os.close(1)
|
||
|
|
if 'stderr' in streams:
|
||
|
|
os.close(2)
|
||
|
|
p = subprocess.Popen(
|
||
|
|
[sys.executable, "-E", "-c", code],
|
||
|
|
stdin=subprocess.PIPE,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.PIPE,
|
||
|
|
preexec_fn=preexec)
|
||
|
|
out, err = p.communicate()
|
||
|
|
self.assertEqual(err, b'')
|
||
|
|
self.assertEqual(p.returncode, 42)
|
||
|
|
|
||
|
|
def test_no_stdin(self):
|
||
|
|
self._test_no_stdio(['stdin'])
|
||
|
|
|
||
|
|
def test_no_stdout(self):
|
||
|
|
self._test_no_stdio(['stdout'])
|
||
|
|
|
||
|
|
def test_no_stderr(self):
|
||
|
|
self._test_no_stdio(['stderr'])
|
||
|
|
|
||
|
|
def test_no_std_streams(self):
|
||
|
|
self._test_no_stdio(['stdin', 'stdout', 'stderr'])
|
||
|
|
|
||
|
|
def test_hash_randomization(self):
|
||
|
|
# Verify that -R enables hash randomization:
|
||
|
|
self.verify_valid_flag('-R')
|
||
|
|
hashes = []
|
||
|
|
if os.environ.get('PYTHONHASHSEED', 'random') != 'random':
|
||
|
|
env = dict(os.environ) # copy
|
||
|
|
# We need to test that it is enabled by default without
|
||
|
|
# the environment variable enabling it for us.
|
||
|
|
del env['PYTHONHASHSEED']
|
||
|
|
env['__cleanenv'] = '1' # consumed by assert_python_ok()
|
||
|
|
else:
|
||
|
|
env = {}
|
||
|
|
for i in range(3):
|
||
|
|
code = 'print(hash("spam"))'
|
||
|
|
rc, out, err = assert_python_ok('-c', code, **env)
|
||
|
|
self.assertEqual(rc, 0)
|
||
|
|
hashes.append(out)
|
||
|
|
hashes = sorted(set(hashes)) # uniq
|
||
|
|
# Rare chance of failure due to 3 random seeds honestly being equal.
|
||
|
|
self.assertGreater(len(hashes), 1,
|
||
|
|
msg='3 runs produced an identical random hash '
|
||
|
|
' for "spam": {}'.format(hashes))
|
||
|
|
|
||
|
|
# Verify that sys.flags contains hash_randomization
|
||
|
|
code = 'import sys; print("random is", sys.flags.hash_randomization)'
|
||
|
|
rc, out, err = assert_python_ok('-c', code, PYTHONHASHSEED='')
|
||
|
|
self.assertIn(b'random is 1', out)
|
||
|
|
|
||
|
|
rc, out, err = assert_python_ok('-c', code, PYTHONHASHSEED='random')
|
||
|
|
self.assertIn(b'random is 1', out)
|
||
|
|
|
||
|
|
rc, out, err = assert_python_ok('-c', code, PYTHONHASHSEED='0')
|
||
|
|
self.assertIn(b'random is 0', out)
|
||
|
|
|
||
|
|
rc, out, err = assert_python_ok('-R', '-c', code, PYTHONHASHSEED='0')
|
||
|
|
self.assertIn(b'random is 1', out)
|
||
|
|
|
||
|
|
def test_del___main__(self):
|
||
|
|
# Issue #15001: PyRun_SimpleFileExFlags() did crash because it kept a
|
||
|
|
# borrowed reference to the dict of __main__ module and later modify
|
||
|
|
# the dict whereas the module was destroyed
|
||
|
|
filename = support.TESTFN
|
||
|
|
self.addCleanup(support.unlink, filename)
|
||
|
|
with open(filename, "w") as script:
|
||
|
|
print("import sys", file=script)
|
||
|
|
print("del sys.modules['__main__']", file=script)
|
||
|
|
assert_python_ok(filename)
|
||
|
|
|
||
|
|
def test_unknown_options(self):
|
||
|
|
rc, out, err = assert_python_failure('-E', '-z')
|
||
|
|
self.assertIn(b'Unknown option: -z', err)
|
||
|
|
self.assertEqual(err.splitlines().count(b'Unknown option: -z'), 1)
|
||
|
|
self.assertEqual(b'', out)
|
||
|
|
# Add "without='-E'" to prevent _assert_python to append -E
|
||
|
|
# to env_vars and change the output of stderr
|
||
|
|
rc, out, err = assert_python_failure('-z', without='-E')
|
||
|
|
self.assertIn(b'Unknown option: -z', err)
|
||
|
|
self.assertEqual(err.splitlines().count(b'Unknown option: -z'), 1)
|
||
|
|
self.assertEqual(b'', out)
|
||
|
|
rc, out, err = assert_python_failure('-a', '-z', without='-E')
|
||
|
|
self.assertIn(b'Unknown option: -a', err)
|
||
|
|
# only the first unknown option is reported
|
||
|
|
self.assertNotIn(b'Unknown option: -z', err)
|
||
|
|
self.assertEqual(err.splitlines().count(b'Unknown option: -a'), 1)
|
||
|
|
self.assertEqual(b'', out)
|
||
|
|
|
||
|
|
@unittest.skipIf(interpreter_requires_environment(),
|
||
|
|
'Cannot run -I tests when PYTHON env vars are required.')
|
||
|
|
def test_isolatedmode(self):
|
||
|
|
self.verify_valid_flag('-I')
|
||
|
|
self.verify_valid_flag('-IEs')
|
||
|
|
rc, out, err = assert_python_ok('-I', '-c',
|
||
|
|
'from sys import flags as f; '
|
||
|
|
'print(f.no_user_site, f.ignore_environment, f.isolated)',
|
||
|
|
# dummyvar to prevent extraneous -E
|
||
|
|
dummyvar="")
|
||
|
|
self.assertEqual(out.strip(), b'1 1 1')
|
||
|
|
with support.temp_cwd() as tmpdir:
|
||
|
|
fake = os.path.join(tmpdir, "uuid.py")
|
||
|
|
main = os.path.join(tmpdir, "main.py")
|
||
|
|
with open(fake, "w") as f:
|
||
|
|
f.write("raise RuntimeError('isolated mode test')\n")
|
||
|
|
with open(main, "w") as f:
|
||
|
|
f.write("import uuid\n")
|
||
|
|
f.write("print('ok')\n")
|
||
|
|
self.assertRaises(subprocess.CalledProcessError,
|
||
|
|
subprocess.check_output,
|
||
|
|
[sys.executable, main], cwd=tmpdir,
|
||
|
|
stderr=subprocess.DEVNULL)
|
||
|
|
out = subprocess.check_output([sys.executable, "-I", main],
|
||
|
|
cwd=tmpdir)
|
||
|
|
self.assertEqual(out.strip(), b"ok")
|
||
|
|
|
||
|
|
def test_sys_flags_set(self):
|
||
|
|
# Issue 31845: a startup refactoring broke reading flags from env vars
|
||
|
|
for value, expected in (("", 0), ("1", 1), ("text", 1), ("2", 2)):
|
||
|
|
env_vars = dict(
|
||
|
|
PYTHONDEBUG=value,
|
||
|
|
PYTHONOPTIMIZE=value,
|
||
|
|
PYTHONDONTWRITEBYTECODE=value,
|
||
|
|
PYTHONVERBOSE=value,
|
||
|
|
)
|
||
|
|
dont_write_bytecode = int(bool(value))
|
||
|
|
code = (
|
||
|
|
"import sys; "
|
||
|
|
"sys.stderr.write(str(sys.flags)); "
|
||
|
|
f"""sys.exit(not (
|
||
|
|
sys.flags.debug == sys.flags.optimize ==
|
||
|
|
sys.flags.verbose ==
|
||
|
|
{expected}
|
||
|
|
and sys.flags.dont_write_bytecode == {dont_write_bytecode}
|
||
|
|
))"""
|
||
|
|
)
|
||
|
|
with self.subTest(envar_value=value):
|
||
|
|
assert_python_ok('-c', code, **env_vars)
|
||
|
|
|
||
|
|
def test_set_pycache_prefix(self):
|
||
|
|
# sys.pycache_prefix can be set from either -X pycache_prefix or
|
||
|
|
# PYTHONPYCACHEPREFIX env var, with the former taking precedence.
|
||
|
|
NO_VALUE = object() # `-X pycache_prefix` with no `=PATH`
|
||
|
|
cases = [
|
||
|
|
# (PYTHONPYCACHEPREFIX, -X pycache_prefix, sys.pycache_prefix)
|
||
|
|
(None, None, None),
|
||
|
|
('foo', None, 'foo'),
|
||
|
|
(None, 'bar', 'bar'),
|
||
|
|
('foo', 'bar', 'bar'),
|
||
|
|
('foo', '', None),
|
||
|
|
('foo', NO_VALUE, None),
|
||
|
|
]
|
||
|
|
for envval, opt, expected in cases:
|
||
|
|
exp_clause = "is None" if expected is None else f'== "{expected}"'
|
||
|
|
code = f"import sys; sys.exit(not sys.pycache_prefix {exp_clause})"
|
||
|
|
args = ['-c', code]
|
||
|
|
env = {} if envval is None else {'PYTHONPYCACHEPREFIX': envval}
|
||
|
|
if opt is NO_VALUE:
|
||
|
|
args[:0] = ['-X', 'pycache_prefix']
|
||
|
|
elif opt is not None:
|
||
|
|
args[:0] = ['-X', f'pycache_prefix={opt}']
|
||
|
|
with self.subTest(envval=envval, opt=opt):
|
||
|
|
with support.temp_cwd():
|
||
|
|
assert_python_ok(*args, **env)
|
||
|
|
|
||
|
|
def run_xdev(self, *args, check_exitcode=True, xdev=True):
|
||
|
|
env = dict(os.environ)
|
||
|
|
env.pop('PYTHONWARNINGS', None)
|
||
|
|
env.pop('PYTHONDEVMODE', None)
|
||
|
|
env.pop('PYTHONMALLOC', None)
|
||
|
|
|
||
|
|
if xdev:
|
||
|
|
args = (sys.executable, '-X', 'dev', *args)
|
||
|
|
else:
|
||
|
|
args = (sys.executable, *args)
|
||
|
|
proc = subprocess.run(args,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.STDOUT,
|
||
|
|
universal_newlines=True,
|
||
|
|
env=env)
|
||
|
|
if check_exitcode:
|
||
|
|
self.assertEqual(proc.returncode, 0, proc)
|
||
|
|
return proc.stdout.rstrip()
|
||
|
|
|
||
|
|
def test_xdev(self):
|
||
|
|
# sys.flags.dev_mode
|
||
|
|
code = "import sys; print(sys.flags.dev_mode)"
|
||
|
|
out = self.run_xdev("-c", code, xdev=False)
|
||
|
|
self.assertEqual(out, "False")
|
||
|
|
out = self.run_xdev("-c", code)
|
||
|
|
self.assertEqual(out, "True")
|
||
|
|
|
||
|
|
# Warnings
|
||
|
|
code = ("import warnings; "
|
||
|
|
"print(' '.join('%s::%s' % (f[0], f[2].__name__) "
|
||
|
|
"for f in warnings.filters))")
|
||
|
|
if Py_DEBUG:
|
||
|
|
expected_filters = "default::Warning"
|
||
|
|
else:
|
||
|
|
expected_filters = ("default::Warning "
|
||
|
|
"default::DeprecationWarning "
|
||
|
|
"ignore::DeprecationWarning "
|
||
|
|
"ignore::PendingDeprecationWarning "
|
||
|
|
"ignore::ImportWarning "
|
||
|
|
"ignore::ResourceWarning")
|
||
|
|
|
||
|
|
out = self.run_xdev("-c", code)
|
||
|
|
self.assertEqual(out, expected_filters)
|
||
|
|
|
||
|
|
out = self.run_xdev("-b", "-c", code)
|
||
|
|
self.assertEqual(out, f"default::BytesWarning {expected_filters}")
|
||
|
|
|
||
|
|
out = self.run_xdev("-bb", "-c", code)
|
||
|
|
self.assertEqual(out, f"error::BytesWarning {expected_filters}")
|
||
|
|
|
||
|
|
out = self.run_xdev("-Werror", "-c", code)
|
||
|
|
self.assertEqual(out, f"error::Warning {expected_filters}")
|
||
|
|
|
||
|
|
# Memory allocator debug hooks
|
||
|
|
try:
|
||
|
|
import _testcapi
|
||
|
|
except ImportError:
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
code = "import _testcapi; print(_testcapi.pymem_getallocatorsname())"
|
||
|
|
with support.SuppressCrashReport():
|
||
|
|
out = self.run_xdev("-c", code, check_exitcode=False)
|
||
|
|
if support.with_pymalloc():
|
||
|
|
alloc_name = "pymalloc_debug"
|
||
|
|
else:
|
||
|
|
alloc_name = "malloc_debug"
|
||
|
|
self.assertEqual(out, alloc_name)
|
||
|
|
|
||
|
|
# Faulthandler
|
||
|
|
try:
|
||
|
|
import faulthandler
|
||
|
|
except ImportError:
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
code = "import faulthandler; print(faulthandler.is_enabled())"
|
||
|
|
out = self.run_xdev("-c", code)
|
||
|
|
self.assertEqual(out, "True")
|
||
|
|
|
||
|
|
def check_warnings_filters(self, cmdline_option, envvar, use_pywarning=False):
|
||
|
|
if use_pywarning:
|
||
|
|
code = ("import sys; from test.support import import_fresh_module; "
|
||
|
|
"warnings = import_fresh_module('warnings', blocked=['_warnings']); ")
|
||
|
|
else:
|
||
|
|
code = "import sys, warnings; "
|
||
|
|
code += ("print(' '.join('%s::%s' % (f[0], f[2].__name__) "
|
||
|
|
"for f in warnings.filters))")
|
||
|
|
args = (sys.executable, '-W', cmdline_option, '-bb', '-c', code)
|
||
|
|
env = dict(os.environ)
|
||
|
|
env.pop('PYTHONDEVMODE', None)
|
||
|
|
env["PYTHONWARNINGS"] = envvar
|
||
|
|
proc = subprocess.run(args,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.STDOUT,
|
||
|
|
universal_newlines=True,
|
||
|
|
env=env)
|
||
|
|
self.assertEqual(proc.returncode, 0, proc)
|
||
|
|
return proc.stdout.rstrip()
|
||
|
|
|
||
|
|
def test_warnings_filter_precedence(self):
|
||
|
|
expected_filters = ("error::BytesWarning "
|
||
|
|
"once::UserWarning "
|
||
|
|
"always::UserWarning")
|
||
|
|
if not Py_DEBUG:
|
||
|
|
expected_filters += (" "
|
||
|
|
"default::DeprecationWarning "
|
||
|
|
"ignore::DeprecationWarning "
|
||
|
|
"ignore::PendingDeprecationWarning "
|
||
|
|
"ignore::ImportWarning "
|
||
|
|
"ignore::ResourceWarning")
|
||
|
|
|
||
|
|
out = self.check_warnings_filters("once::UserWarning",
|
||
|
|
"always::UserWarning")
|
||
|
|
self.assertEqual(out, expected_filters)
|
||
|
|
|
||
|
|
out = self.check_warnings_filters("once::UserWarning",
|
||
|
|
"always::UserWarning",
|
||
|
|
use_pywarning=True)
|
||
|
|
self.assertEqual(out, expected_filters)
|
||
|
|
|
||
|
|
def check_pythonmalloc(self, env_var, name):
|
||
|
|
code = 'import _testcapi; print(_testcapi.pymem_getallocatorsname())'
|
||
|
|
env = dict(os.environ)
|
||
|
|
env.pop('PYTHONDEVMODE', None)
|
||
|
|
if env_var is not None:
|
||
|
|
env['PYTHONMALLOC'] = env_var
|
||
|
|
else:
|
||
|
|
env.pop('PYTHONMALLOC', None)
|
||
|
|
args = (sys.executable, '-c', code)
|
||
|
|
proc = subprocess.run(args,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.STDOUT,
|
||
|
|
universal_newlines=True,
|
||
|
|
env=env)
|
||
|
|
self.assertEqual(proc.stdout.rstrip(), name)
|
||
|
|
self.assertEqual(proc.returncode, 0)
|
||
|
|
|
||
|
|
def test_pythonmalloc(self):
|
||
|
|
# Test the PYTHONMALLOC environment variable
|
||
|
|
pymalloc = support.with_pymalloc()
|
||
|
|
if pymalloc:
|
||
|
|
default_name = 'pymalloc_debug' if Py_DEBUG else 'pymalloc'
|
||
|
|
default_name_debug = 'pymalloc_debug'
|
||
|
|
else:
|
||
|
|
default_name = 'malloc_debug' if Py_DEBUG else 'malloc'
|
||
|
|
default_name_debug = 'malloc_debug'
|
||
|
|
|
||
|
|
tests = [
|
||
|
|
(None, default_name),
|
||
|
|
('debug', default_name_debug),
|
||
|
|
('malloc', 'malloc'),
|
||
|
|
('malloc_debug', 'malloc_debug'),
|
||
|
|
]
|
||
|
|
if pymalloc:
|
||
|
|
tests.extend((
|
||
|
|
('pymalloc', 'pymalloc'),
|
||
|
|
('pymalloc_debug', 'pymalloc_debug'),
|
||
|
|
))
|
||
|
|
|
||
|
|
for env_var, name in tests:
|
||
|
|
with self.subTest(env_var=env_var, name=name):
|
||
|
|
self.check_pythonmalloc(env_var, name)
|
||
|
|
|
||
|
|
def test_pythondevmode_env(self):
|
||
|
|
# Test the PYTHONDEVMODE environment variable
|
||
|
|
code = "import sys; print(sys.flags.dev_mode)"
|
||
|
|
env = dict(os.environ)
|
||
|
|
env.pop('PYTHONDEVMODE', None)
|
||
|
|
args = (sys.executable, '-c', code)
|
||
|
|
|
||
|
|
proc = subprocess.run(args, stdout=subprocess.PIPE,
|
||
|
|
universal_newlines=True, env=env)
|
||
|
|
self.assertEqual(proc.stdout.rstrip(), 'False')
|
||
|
|
self.assertEqual(proc.returncode, 0, proc)
|
||
|
|
|
||
|
|
env['PYTHONDEVMODE'] = '1'
|
||
|
|
proc = subprocess.run(args, stdout=subprocess.PIPE,
|
||
|
|
universal_newlines=True, env=env)
|
||
|
|
self.assertEqual(proc.stdout.rstrip(), 'True')
|
||
|
|
self.assertEqual(proc.returncode, 0, proc)
|
||
|
|
|
||
|
|
@unittest.skipUnless(sys.platform == 'win32',
|
||
|
|
'bpo-32457 only applies on Windows')
|
||
|
|
def test_argv0_normalization(self):
|
||
|
|
args = sys.executable, '-c', 'print(0)'
|
||
|
|
prefix, exe = os.path.split(sys.executable)
|
||
|
|
executable = prefix + '\\.\\.\\.\\' + exe
|
||
|
|
|
||
|
|
proc = subprocess.run(args, stdout=subprocess.PIPE,
|
||
|
|
executable=executable)
|
||
|
|
self.assertEqual(proc.returncode, 0, proc)
|
||
|
|
self.assertEqual(proc.stdout.strip(), b'0')
|
||
|
|
|
||
|
|
def test_parsing_error(self):
|
||
|
|
args = [sys.executable, '-I', '--unknown-option']
|
||
|
|
proc = subprocess.run(args,
|
||
|
|
stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.PIPE,
|
||
|
|
text=True)
|
||
|
|
err_msg = "unknown option --unknown-option\nusage: "
|
||
|
|
self.assertTrue(proc.stderr.startswith(err_msg), proc.stderr)
|
||
|
|
self.assertNotEqual(proc.returncode, 0)
|
||
|
|
|
||
|
|
|
||
|
|
@unittest.skipIf(interpreter_requires_environment(),
|
||
|
|
'Cannot run -I tests when PYTHON env vars are required.')
|
||
|
|
class IgnoreEnvironmentTest(unittest.TestCase):
|
||
|
|
|
||
|
|
def run_ignoring_vars(self, predicate, **env_vars):
|
||
|
|
# Runs a subprocess with -E set, even though we're passing
|
||
|
|
# specific environment variables
|
||
|
|
# Logical inversion to match predicate check to a zero return
|
||
|
|
# code indicating success
|
||
|
|
code = "import sys; sys.stderr.write(str(sys.flags)); sys.exit(not ({}))".format(predicate)
|
||
|
|
return assert_python_ok('-E', '-c', code, **env_vars)
|
||
|
|
|
||
|
|
def test_ignore_PYTHONPATH(self):
|
||
|
|
path = "should_be_ignored"
|
||
|
|
self.run_ignoring_vars("'{}' not in sys.path".format(path),
|
||
|
|
PYTHONPATH=path)
|
||
|
|
|
||
|
|
def test_ignore_PYTHONHASHSEED(self):
|
||
|
|
self.run_ignoring_vars("sys.flags.hash_randomization == 1",
|
||
|
|
PYTHONHASHSEED="0")
|
||
|
|
|
||
|
|
def test_sys_flags_not_set(self):
|
||
|
|
# Issue 31845: a startup refactoring broke reading flags from env vars
|
||
|
|
expected_outcome = """
|
||
|
|
(sys.flags.debug == sys.flags.optimize ==
|
||
|
|
sys.flags.dont_write_bytecode == sys.flags.verbose == 0)
|
||
|
|
"""
|
||
|
|
self.run_ignoring_vars(
|
||
|
|
expected_outcome,
|
||
|
|
PYTHONDEBUG="1",
|
||
|
|
PYTHONOPTIMIZE="1",
|
||
|
|
PYTHONDONTWRITEBYTECODE="1",
|
||
|
|
PYTHONVERBOSE="1",
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def test_main():
|
||
|
|
support.run_unittest(CmdLineTest, IgnoreEnvironmentTest)
|
||
|
|
support.reap_children()
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
test_main()
|