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svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r88530 | victor.stinner | 2011-02-23 13:07:37 +0100 (mer., 23 févr. 2011) | 4 lines Issue #11272: Fix input() and sys.stdin for Windows newline On Windows, input() strips '\r' (and not only '\n'), and sys.stdin uses universal newline (replace '\r\n' by '\n'). ........
274 lines
11 KiB
Python
274 lines
11 KiB
Python
# 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 test.support, unittest
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import os
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import sys
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import subprocess
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import tempfile
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from test.script_helper import spawn_python, kill_python, assert_python_ok, assert_python_failure
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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_q(self):
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self.verify_valid_flag('-Qold')
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self.verify_valid_flag('-Qnew')
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self.verify_valid_flag('-Qwarn')
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self.verify_valid_flag('-Qwarnall')
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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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self.assertIn(b'usage', out)
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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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rc, out, err = assert_python_ok('-V')
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self.assertTrue(err.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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def test_xoptions(self):
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rc, out, err = assert_python_ok('-c', 'import sys; print(sys._xoptions)')
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opts = eval(out.splitlines()[0])
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self.assertEqual(opts, {})
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rc, out, err = assert_python_ok(
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'-Xa', '-Xb=c,d=e', '-c', 'import sys; print(sys._xoptions)')
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opts = eval(out.splitlines()[0])
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self.assertEqual(opts, {'a': True, 'b': 'c,d=e'})
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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.skipIf(sys.getfilesystemencoding() == 'ascii',
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'need a filesystem encoding different than ASCII')
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def test_non_ascii(self):
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# Test handling of non-ascii data
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if test.support.verbose:
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import locale
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print('locale encoding = %s, filesystem encoding = %s'
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% (locale.getpreferredencoding(), sys.getfilesystemencoding()))
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command = "assert(ord('\xe9') == 0xe9)"
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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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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.skipUnless(sys.platform == 'darwin', 'test specific to Mac OS X')
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def test_osx_utf8(self):
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def check_output(text):
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decoded = text.decode('utf8', '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
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env['LC_ALL'] = 'C'
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p = subprocess.Popen(
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(sys.executable, "-c", "import sys; print(ascii(sys.argv[1]))", 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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# test valid utf-8
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text = 'e:\xe9, euro:\u20ac, non-bmp:\U0010ffff'.encode('utf-8')
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check_output(text)
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# test invalid utf-8
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text = (
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b'\xff' # invalid byte
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b'\xc3\xa9' # valid utf-8 character
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b'\xc3\xff' # invalid byte sequence
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b'\xed\xa0\x80' # lone surrogate character (invalid)
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)
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check_output(text)
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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 line-buffered
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code = ("import os, sys; sys.%s.write('x\\n'); 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.strip(), b'x',
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"text %s not line-buffered" % 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_displayhook_unencodable(self):
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for encoding in ('ascii', 'latin1', 'utf8'):
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env = os.environ.copy()
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env['PYTHONIOENCODING'] = encoding
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p = subprocess.Popen(
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[sys.executable, '-i'],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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env=env)
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# non-ascii, surrogate, non-BMP printable, non-BMP unprintable
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text = "a=\xe9 b=\uDC80 c=\U00010000 d=\U0010FFFF"
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p.stdin.write(ascii(text).encode('ascii') + b"\n")
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p.stdin.write(b'exit()\n')
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data = kill_python(p)
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escaped = repr(text).encode(encoding, 'backslashreplace')
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self.assertIn(escaped, data)
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def check_input(self, code, expected):
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with tempfile.NamedTemporaryFile("wb+") as stdin:
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sep = os.linesep.encode('ASCII')
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stdin.write(sep.join((b'abc', b'def')))
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stdin.flush()
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stdin.seek(0)
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with subprocess.Popen(
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(sys.executable, "-c", code),
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stdin=stdin, stdout=subprocess.PIPE) as proc:
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stdout, stderr = proc.communicate()
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self.assertEqual(stdout.rstrip(), expected)
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def test_stdin_readline(self):
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# Issue #11272: check that sys.stdin.readline() replaces '\r\n' by '\n'
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# on Windows (sys.stdin is opened in binary mode)
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self.check_input(
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"import sys; print(repr(sys.stdin.readline()))",
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b"'abc\\n'")
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def test_builtin_input(self):
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# Issue #11272: check that input() strips newlines ('\n' or '\r\n')
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self.check_input(
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"print(repr(input()))",
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b"'abc'")
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def test_main():
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test.support.run_unittest(CmdLineTest)
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test.support.reap_children()
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if __name__ == "__main__":
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test_main()
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