mirror of https://github.com/python/cpython
368 lines
14 KiB
Python
368 lines
14 KiB
Python
import errno
|
|
import os
|
|
import re
|
|
import sys
|
|
import unittest
|
|
|
|
from test import support
|
|
from test.support import import_helper
|
|
from test.support.os_helper import TESTFN, TESTFN_UNDECODABLE
|
|
from test.support.script_helper import assert_python_failure
|
|
from test.support.testcase import ExceptionIsLikeMixin
|
|
|
|
from .test_misc import decode_stderr
|
|
|
|
# Skip this test if the _testcapi module isn't available.
|
|
_testcapi = import_helper.import_module('_testcapi')
|
|
|
|
NULL = None
|
|
|
|
class Test_Exceptions(unittest.TestCase):
|
|
|
|
def test_exception(self):
|
|
raised_exception = ValueError("5")
|
|
new_exc = TypeError("TEST")
|
|
try:
|
|
raise raised_exception
|
|
except ValueError as e:
|
|
orig_sys_exception = sys.exception()
|
|
orig_exception = _testcapi.set_exception(new_exc)
|
|
new_sys_exception = sys.exception()
|
|
new_exception = _testcapi.set_exception(orig_exception)
|
|
reset_sys_exception = sys.exception()
|
|
|
|
self.assertEqual(orig_exception, e)
|
|
|
|
self.assertEqual(orig_exception, raised_exception)
|
|
self.assertEqual(orig_sys_exception, orig_exception)
|
|
self.assertEqual(reset_sys_exception, orig_exception)
|
|
self.assertEqual(new_exception, new_exc)
|
|
self.assertEqual(new_sys_exception, new_exception)
|
|
else:
|
|
self.fail("Exception not raised")
|
|
|
|
def test_exc_info(self):
|
|
raised_exception = ValueError("5")
|
|
new_exc = TypeError("TEST")
|
|
try:
|
|
raise raised_exception
|
|
except ValueError as e:
|
|
tb = e.__traceback__
|
|
orig_sys_exc_info = sys.exc_info()
|
|
orig_exc_info = _testcapi.set_exc_info(new_exc.__class__, new_exc, None)
|
|
new_sys_exc_info = sys.exc_info()
|
|
new_exc_info = _testcapi.set_exc_info(*orig_exc_info)
|
|
reset_sys_exc_info = sys.exc_info()
|
|
|
|
self.assertEqual(orig_exc_info[1], e)
|
|
|
|
self.assertSequenceEqual(orig_exc_info, (raised_exception.__class__, raised_exception, tb))
|
|
self.assertSequenceEqual(orig_sys_exc_info, orig_exc_info)
|
|
self.assertSequenceEqual(reset_sys_exc_info, orig_exc_info)
|
|
self.assertSequenceEqual(new_exc_info, (new_exc.__class__, new_exc, None))
|
|
self.assertSequenceEqual(new_sys_exc_info, new_exc_info)
|
|
else:
|
|
self.assertTrue(False)
|
|
|
|
|
|
class Test_FatalError(unittest.TestCase):
|
|
|
|
def check_fatal_error(self, code, expected, not_expected=()):
|
|
with support.SuppressCrashReport():
|
|
rc, out, err = assert_python_failure('-sSI', '-c', code)
|
|
|
|
err = decode_stderr(err)
|
|
self.assertIn('Fatal Python error: _testcapi_fatal_error_impl: MESSAGE\n',
|
|
err)
|
|
|
|
match = re.search(r'^Extension modules:(.*) \(total: ([0-9]+)\)$',
|
|
err, re.MULTILINE)
|
|
if not match:
|
|
self.fail(f"Cannot find 'Extension modules:' in {err!r}")
|
|
modules = set(match.group(1).strip().split(', '))
|
|
total = int(match.group(2))
|
|
|
|
for name in expected:
|
|
self.assertIn(name, modules)
|
|
for name in not_expected:
|
|
self.assertNotIn(name, modules)
|
|
self.assertEqual(len(modules), total)
|
|
|
|
@support.requires_subprocess()
|
|
def test_fatal_error(self):
|
|
# By default, stdlib extension modules are ignored,
|
|
# but not test modules.
|
|
expected = ('_testcapi',)
|
|
not_expected = ('sys',)
|
|
code = 'import _testcapi, sys; _testcapi.fatal_error(b"MESSAGE")'
|
|
self.check_fatal_error(code, expected, not_expected)
|
|
|
|
# Mark _testcapi as stdlib module, but not sys
|
|
expected = ('sys',)
|
|
not_expected = ('_testcapi',)
|
|
code = """if True:
|
|
import _testcapi, sys
|
|
sys.stdlib_module_names = frozenset({"_testcapi"})
|
|
_testcapi.fatal_error(b"MESSAGE")
|
|
"""
|
|
self.check_fatal_error(code, expected)
|
|
|
|
|
|
class Test_ErrSetAndRestore(unittest.TestCase):
|
|
|
|
def test_err_set_raised(self):
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_set_raised(ValueError())
|
|
v = ValueError()
|
|
try:
|
|
_testcapi.err_set_raised(v)
|
|
except ValueError as ex:
|
|
self.assertIs(v, ex)
|
|
|
|
def test_err_restore(self):
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_restore(ValueError)
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_restore(ValueError, 1)
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_restore(ValueError, 1, None)
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_restore(ValueError, ValueError())
|
|
try:
|
|
_testcapi.err_restore(KeyError, "hi")
|
|
except KeyError as k:
|
|
self.assertEqual("hi", k.args[0])
|
|
try:
|
|
1/0
|
|
except Exception as e:
|
|
tb = e.__traceback__
|
|
with self.assertRaises(ValueError):
|
|
_testcapi.err_restore(ValueError, 1, tb)
|
|
with self.assertRaises(TypeError):
|
|
_testcapi.err_restore(ValueError, 1, 0)
|
|
try:
|
|
_testcapi.err_restore(ValueError, 1, tb)
|
|
except ValueError as v:
|
|
self.assertEqual(1, v.args[0])
|
|
self.assertIs(tb, v.__traceback__.tb_next)
|
|
|
|
def test_set_object(self):
|
|
|
|
# new exception as obj is not an exception
|
|
with self.assertRaises(ValueError) as e:
|
|
_testcapi.exc_set_object(ValueError, 42)
|
|
self.assertEqual(e.exception.args, (42,))
|
|
|
|
# wraps the exception because unrelated types
|
|
with self.assertRaises(ValueError) as e:
|
|
_testcapi.exc_set_object(ValueError, TypeError(1,2,3))
|
|
wrapped = e.exception.args[0]
|
|
self.assertIsInstance(wrapped, TypeError)
|
|
self.assertEqual(wrapped.args, (1, 2, 3))
|
|
|
|
# is superclass, so does not wrap
|
|
with self.assertRaises(PermissionError) as e:
|
|
_testcapi.exc_set_object(OSError, PermissionError(24))
|
|
self.assertEqual(e.exception.args, (24,))
|
|
|
|
class Meta(type):
|
|
def __subclasscheck__(cls, sub):
|
|
1/0
|
|
|
|
class Broken(Exception, metaclass=Meta):
|
|
pass
|
|
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
_testcapi.exc_set_object(Broken, Broken())
|
|
|
|
def test_set_object_and_fetch(self):
|
|
class Broken(Exception):
|
|
def __init__(self, *arg):
|
|
raise ValueError("Broken __init__")
|
|
|
|
exc = _testcapi.exc_set_object_fetch(Broken, 'abcd')
|
|
self.assertIsInstance(exc, ValueError)
|
|
self.assertEqual(exc.__notes__[0],
|
|
"Normalization failed: type=Broken args='abcd'")
|
|
|
|
class BadArg:
|
|
def __repr__(self):
|
|
raise TypeError('Broken arg type')
|
|
|
|
exc = _testcapi.exc_set_object_fetch(Broken, BadArg())
|
|
self.assertIsInstance(exc, ValueError)
|
|
self.assertEqual(exc.__notes__[0],
|
|
'Normalization failed: type=Broken args=<unknown>')
|
|
|
|
def test_set_string(self):
|
|
"""Test PyErr_SetString()"""
|
|
setstring = _testcapi.err_setstring
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
setstring(ZeroDivisionError, b'error')
|
|
self.assertEqual(e.exception.args, ('error',))
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
setstring(ZeroDivisionError, 'помилка'.encode())
|
|
self.assertEqual(e.exception.args, ('помилка',))
|
|
|
|
with self.assertRaises(UnicodeDecodeError):
|
|
setstring(ZeroDivisionError, b'\xff')
|
|
self.assertRaises(SystemError, setstring, list, b'error')
|
|
# CRASHES setstring(ZeroDivisionError, NULL)
|
|
# CRASHES setstring(NULL, b'error')
|
|
|
|
def test_format(self):
|
|
"""Test PyErr_Format()"""
|
|
import_helper.import_module('ctypes')
|
|
from ctypes import pythonapi, py_object, c_char_p, c_int
|
|
name = "PyErr_Format"
|
|
PyErr_Format = getattr(pythonapi, name)
|
|
PyErr_Format.argtypes = (py_object, c_char_p,)
|
|
PyErr_Format.restype = py_object
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
PyErr_Format(ZeroDivisionError, b'%s %d', b'error', c_int(42))
|
|
self.assertEqual(e.exception.args, ('error 42',))
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
PyErr_Format(ZeroDivisionError, b'%s', 'помилка'.encode())
|
|
self.assertEqual(e.exception.args, ('помилка',))
|
|
|
|
with self.assertRaisesRegex(OverflowError, 'not in range'):
|
|
PyErr_Format(ZeroDivisionError, b'%c', c_int(-1))
|
|
with self.assertRaisesRegex(ValueError, 'format string'):
|
|
PyErr_Format(ZeroDivisionError, b'\xff')
|
|
self.assertRaises(SystemError, PyErr_Format, list, b'error')
|
|
# CRASHES PyErr_Format(ZeroDivisionError, NULL)
|
|
# CRASHES PyErr_Format(py_object(), b'error')
|
|
|
|
def test_setfromerrnowithfilename(self):
|
|
"""Test PyErr_SetFromErrnoWithFilename()"""
|
|
setfromerrnowithfilename = _testcapi.err_setfromerrnowithfilename
|
|
ENOENT = errno.ENOENT
|
|
with self.assertRaises(FileNotFoundError) as e:
|
|
setfromerrnowithfilename(ENOENT, OSError, b'file')
|
|
self.assertEqual(e.exception.args,
|
|
(ENOENT, 'No such file or directory'))
|
|
self.assertEqual(e.exception.errno, ENOENT)
|
|
self.assertEqual(e.exception.filename, 'file')
|
|
|
|
with self.assertRaises(FileNotFoundError) as e:
|
|
setfromerrnowithfilename(ENOENT, OSError, os.fsencode(TESTFN))
|
|
self.assertEqual(e.exception.filename, TESTFN)
|
|
|
|
if TESTFN_UNDECODABLE:
|
|
with self.assertRaises(FileNotFoundError) as e:
|
|
setfromerrnowithfilename(ENOENT, OSError, TESTFN_UNDECODABLE)
|
|
self.assertEqual(e.exception.filename,
|
|
os.fsdecode(TESTFN_UNDECODABLE))
|
|
|
|
with self.assertRaises(FileNotFoundError) as e:
|
|
setfromerrnowithfilename(ENOENT, OSError, NULL)
|
|
self.assertIsNone(e.exception.filename)
|
|
|
|
with self.assertRaises(OSError) as e:
|
|
setfromerrnowithfilename(0, OSError, b'file')
|
|
self.assertEqual(e.exception.args, (0, 'Error'))
|
|
self.assertEqual(e.exception.errno, 0)
|
|
self.assertEqual(e.exception.filename, 'file')
|
|
|
|
with self.assertRaises(ZeroDivisionError) as e:
|
|
setfromerrnowithfilename(ENOENT, ZeroDivisionError, b'file')
|
|
self.assertEqual(e.exception.args,
|
|
(ENOENT, 'No such file or directory', 'file'))
|
|
# CRASHES setfromerrnowithfilename(ENOENT, NULL, b'error')
|
|
|
|
|
|
class Test_PyUnstable_Exc_PrepReraiseStar(ExceptionIsLikeMixin, unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
try:
|
|
raise ExceptionGroup("eg", [TypeError('bad type'), ValueError(42)])
|
|
except ExceptionGroup as e:
|
|
self.orig = e
|
|
|
|
def test_invalid_args(self):
|
|
with self.assertRaisesRegex(TypeError, "orig must be an exception"):
|
|
_testcapi.unstable_exc_prep_reraise_star(42, [None])
|
|
|
|
with self.assertRaisesRegex(TypeError, "excs must be a list"):
|
|
_testcapi.unstable_exc_prep_reraise_star(self.orig, 42)
|
|
|
|
with self.assertRaisesRegex(TypeError, "not an exception"):
|
|
_testcapi.unstable_exc_prep_reraise_star(self.orig, [TypeError(42), 42])
|
|
|
|
with self.assertRaisesRegex(ValueError, "orig must be a raised exception"):
|
|
_testcapi.unstable_exc_prep_reraise_star(ValueError(42), [TypeError(42)])
|
|
|
|
with self.assertRaisesRegex(ValueError, "orig must be a raised exception"):
|
|
_testcapi.unstable_exc_prep_reraise_star(ExceptionGroup("eg", [ValueError(42)]),
|
|
[TypeError(42)])
|
|
|
|
|
|
def test_nothing_to_reraise(self):
|
|
self.assertEqual(
|
|
_testcapi.unstable_exc_prep_reraise_star(self.orig, [None]), None)
|
|
|
|
try:
|
|
raise ValueError(42)
|
|
except ValueError as e:
|
|
orig = e
|
|
self.assertEqual(
|
|
_testcapi.unstable_exc_prep_reraise_star(orig, [None]), None)
|
|
|
|
def test_reraise_orig(self):
|
|
orig = self.orig
|
|
res = _testcapi.unstable_exc_prep_reraise_star(orig, [orig])
|
|
self.assertExceptionIsLike(res, orig)
|
|
|
|
def test_raise_orig_parts(self):
|
|
orig = self.orig
|
|
match, rest = orig.split(TypeError)
|
|
|
|
test_cases = [
|
|
([match, rest], orig),
|
|
([rest, match], orig),
|
|
([match], match),
|
|
([rest], rest),
|
|
([], None),
|
|
]
|
|
|
|
for input, expected in test_cases:
|
|
with self.subTest(input=input):
|
|
res = _testcapi.unstable_exc_prep_reraise_star(orig, input)
|
|
self.assertExceptionIsLike(res, expected)
|
|
|
|
|
|
def test_raise_with_new_exceptions(self):
|
|
orig = self.orig
|
|
|
|
match, rest = orig.split(TypeError)
|
|
new1 = OSError('bad file')
|
|
new2 = RuntimeError('bad runtime')
|
|
|
|
test_cases = [
|
|
([new1, match, rest], ExceptionGroup("", [new1, orig])),
|
|
([match, new1, rest], ExceptionGroup("", [new1, orig])),
|
|
([match, rest, new1], ExceptionGroup("", [new1, orig])),
|
|
|
|
([new1, new2, match, rest], ExceptionGroup("", [new1, new2, orig])),
|
|
([new1, match, new2, rest], ExceptionGroup("", [new1, new2, orig])),
|
|
([new2, rest, match, new1], ExceptionGroup("", [new2, new1, orig])),
|
|
([rest, new2, match, new1], ExceptionGroup("", [new2, new1, orig])),
|
|
|
|
|
|
([new1, new2, rest], ExceptionGroup("", [new1, new2, rest])),
|
|
([new1, match, new2], ExceptionGroup("", [new1, new2, match])),
|
|
([rest, new2, new1], ExceptionGroup("", [new2, new1, rest])),
|
|
([new1, new2], ExceptionGroup("", [new1, new2])),
|
|
([new2, new1], ExceptionGroup("", [new2, new1])),
|
|
]
|
|
|
|
for (input, expected) in test_cases:
|
|
with self.subTest(input=input):
|
|
res = _testcapi.unstable_exc_prep_reraise_star(orig, input)
|
|
self.assertExceptionIsLike(res, expected)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|