a77aac4fca
To improve the user experience understanding what part of the error messages associated with SyntaxErrors is wrong, we can highlight the whole error range and not only place the caret at the first character. In this way:
>>> foo(x, z for z in range(10), t, w)
File "<stdin>", line 1
foo(x, z for z in range(10), t, w)
^
SyntaxError: Generator expression must be parenthesized
becomes
>>> foo(x, z for z in range(10), t, w)
File "<stdin>", line 1
foo(x, z for z in range(10), t, w)
^^^^^^^^^^^^^^^^^^^^
SyntaxError: Generator expression must be parenthesized
2047 lines
70 KiB
Python
2047 lines
70 KiB
Python
# Python test set -- part 5, built-in exceptions
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import copy
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import gc
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import os
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import sys
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import unittest
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import pickle
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import weakref
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import errno
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from textwrap import dedent
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from test.support import (captured_stderr, check_impl_detail,
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cpython_only, gc_collect,
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no_tracing, script_helper,
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SuppressCrashReport)
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from test.support.import_helper import import_module
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from test.support.os_helper import TESTFN, unlink
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from test.support.warnings_helper import check_warnings
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from test import support
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class NaiveException(Exception):
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def __init__(self, x):
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self.x = x
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class SlottedNaiveException(Exception):
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__slots__ = ('x',)
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def __init__(self, x):
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self.x = x
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class BrokenStrException(Exception):
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def __str__(self):
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raise Exception("str() is broken")
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# XXX This is not really enough, each *operation* should be tested!
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class ExceptionTests(unittest.TestCase):
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def raise_catch(self, exc, excname):
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with self.subTest(exc=exc, excname=excname):
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try:
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raise exc("spam")
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except exc as err:
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buf1 = str(err)
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try:
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raise exc("spam")
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except exc as err:
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buf2 = str(err)
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self.assertEqual(buf1, buf2)
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self.assertEqual(exc.__name__, excname)
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def testRaising(self):
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self.raise_catch(AttributeError, "AttributeError")
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self.assertRaises(AttributeError, getattr, sys, "undefined_attribute")
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self.raise_catch(EOFError, "EOFError")
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fp = open(TESTFN, 'w', encoding="utf-8")
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fp.close()
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fp = open(TESTFN, 'r', encoding="utf-8")
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savestdin = sys.stdin
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try:
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try:
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import marshal
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marshal.loads(b'')
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except EOFError:
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pass
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finally:
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sys.stdin = savestdin
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fp.close()
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unlink(TESTFN)
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self.raise_catch(OSError, "OSError")
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self.assertRaises(OSError, open, 'this file does not exist', 'r')
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self.raise_catch(ImportError, "ImportError")
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self.assertRaises(ImportError, __import__, "undefined_module")
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self.raise_catch(IndexError, "IndexError")
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x = []
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self.assertRaises(IndexError, x.__getitem__, 10)
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self.raise_catch(KeyError, "KeyError")
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x = {}
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self.assertRaises(KeyError, x.__getitem__, 'key')
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self.raise_catch(KeyboardInterrupt, "KeyboardInterrupt")
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self.raise_catch(MemoryError, "MemoryError")
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self.raise_catch(NameError, "NameError")
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try: x = undefined_variable
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except NameError: pass
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self.raise_catch(OverflowError, "OverflowError")
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x = 1
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for dummy in range(128):
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x += x # this simply shouldn't blow up
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self.raise_catch(RuntimeError, "RuntimeError")
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self.raise_catch(RecursionError, "RecursionError")
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self.raise_catch(SyntaxError, "SyntaxError")
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try: exec('/\n')
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except SyntaxError: pass
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self.raise_catch(IndentationError, "IndentationError")
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self.raise_catch(TabError, "TabError")
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try: compile("try:\n\t1/0\n \t1/0\nfinally:\n pass\n",
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'<string>', 'exec')
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except TabError: pass
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else: self.fail("TabError not raised")
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self.raise_catch(SystemError, "SystemError")
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self.raise_catch(SystemExit, "SystemExit")
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self.assertRaises(SystemExit, sys.exit, 0)
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self.raise_catch(TypeError, "TypeError")
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try: [] + ()
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except TypeError: pass
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self.raise_catch(ValueError, "ValueError")
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self.assertRaises(ValueError, chr, 17<<16)
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self.raise_catch(ZeroDivisionError, "ZeroDivisionError")
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try: x = 1/0
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except ZeroDivisionError: pass
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self.raise_catch(Exception, "Exception")
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try: x = 1/0
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except Exception as e: pass
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self.raise_catch(StopAsyncIteration, "StopAsyncIteration")
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def testSyntaxErrorMessage(self):
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# make sure the right exception message is raised for each of
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# these code fragments
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def ckmsg(src, msg):
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with self.subTest(src=src, msg=msg):
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try:
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compile(src, '<fragment>', 'exec')
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except SyntaxError as e:
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if e.msg != msg:
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self.fail("expected %s, got %s" % (msg, e.msg))
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else:
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self.fail("failed to get expected SyntaxError")
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s = '''if 1:
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try:
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continue
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except:
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pass'''
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ckmsg(s, "'continue' not properly in loop")
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ckmsg("continue\n", "'continue' not properly in loop")
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def testSyntaxErrorMissingParens(self):
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def ckmsg(src, msg, exception=SyntaxError):
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try:
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compile(src, '<fragment>', 'exec')
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except exception as e:
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if e.msg != msg:
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self.fail("expected %s, got %s" % (msg, e.msg))
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else:
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self.fail("failed to get expected SyntaxError")
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s = '''print "old style"'''
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ckmsg(s, "Missing parentheses in call to 'print'. "
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"Did you mean print(\"old style\")?")
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s = '''print "old style",'''
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ckmsg(s, "Missing parentheses in call to 'print'. "
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"Did you mean print(\"old style\", end=\" \")?")
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s = '''exec "old style"'''
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ckmsg(s, "Missing parentheses in call to 'exec'")
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# should not apply to subclasses, see issue #31161
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s = '''if True:\nprint "No indent"'''
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ckmsg(s, "expected an indented block after 'if' statement on line 1", IndentationError)
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s = '''if True:\n print()\n\texec "mixed tabs and spaces"'''
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ckmsg(s, "inconsistent use of tabs and spaces in indentation", TabError)
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def check(self, src, lineno, offset, encoding='utf-8'):
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with self.subTest(source=src, lineno=lineno, offset=offset):
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with self.assertRaises(SyntaxError) as cm:
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compile(src, '<fragment>', 'exec')
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self.assertEqual(cm.exception.lineno, lineno)
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self.assertEqual(cm.exception.offset, offset)
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if cm.exception.text is not None:
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if not isinstance(src, str):
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src = src.decode(encoding, 'replace')
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line = src.split('\n')[lineno-1]
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self.assertIn(line, cm.exception.text)
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def testSyntaxErrorOffset(self):
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check = self.check
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check('def fact(x):\n\treturn x!\n', 2, 10)
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check('1 +\n', 1, 4)
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check('def spam():\n print(1)\n print(2)', 3, 10)
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check('Python = "Python" +', 1, 20)
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check('Python = "\u1e54\xfd\u0163\u0125\xf2\xf1" +', 1, 20)
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check(b'# -*- coding: cp1251 -*-\nPython = "\xcf\xb3\xf2\xee\xed" +',
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2, 19, encoding='cp1251')
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check(b'Python = "\xcf\xb3\xf2\xee\xed" +', 1, 18)
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check('x = "a', 1, 5)
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check('lambda x: x = 2', 1, 1)
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check('f{a + b + c}', 1, 2)
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check('[file for str(file) in []\n])', 1, 11)
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check('[\nfile\nfor str(file)\nin\n[]\n]', 3, 5)
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check('[file for\n str(file) in []]', 2, 2)
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# Errors thrown by compile.c
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check('class foo:return 1', 1, 11)
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check('def f():\n continue', 2, 3)
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check('def f():\n break', 2, 3)
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check('try:\n pass\nexcept:\n pass\nexcept ValueError:\n pass', 2, 3)
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# Errors thrown by tokenizer.c
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check('(0x+1)', 1, 3)
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check('x = 0xI', 1, 6)
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check('0010 + 2', 1, 4)
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check('x = 32e-+4', 1, 8)
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check('x = 0o9', 1, 6)
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check('\u03b1 = 0xI', 1, 6)
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check(b'\xce\xb1 = 0xI', 1, 6)
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check(b'# -*- coding: iso8859-7 -*-\n\xe1 = 0xI', 2, 6,
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encoding='iso8859-7')
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check(b"""if 1:
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def foo():
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'''
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def bar():
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pass
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def baz():
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'''quux'''
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""", 9, 24)
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check("pass\npass\npass\n(1+)\npass\npass\npass", 4, 4)
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check("(1+)", 1, 4)
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# Errors thrown by symtable.c
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check('x = [(yield i) for i in range(3)]', 1, 5)
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check('def f():\n from _ import *', 1, 1)
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check('def f(x, x):\n pass', 1, 1)
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check('def f(x):\n nonlocal x', 2, 3)
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check('def f(x):\n x = 1\n global x', 3, 3)
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check('nonlocal x', 1, 1)
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check('def f():\n global x\n nonlocal x', 2, 3)
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# Errors thrown by future.c
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check('from __future__ import doesnt_exist', 1, 1)
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check('from __future__ import braces', 1, 1)
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check('x=1\nfrom __future__ import division', 2, 1)
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check('foo(1=2)', 1, 5)
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check('def f():\n x, y: int', 2, 3)
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check('[*x for x in xs]', 1, 2)
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check('foo(x for x in range(10), 100)', 1, 5)
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check('for 1 in []: pass', 1, 5)
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check('(yield i) = 2', 1, 2)
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check('def f(*):\n pass', 1, 7)
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@cpython_only
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def testSettingException(self):
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# test that setting an exception at the C level works even if the
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# exception object can't be constructed.
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class BadException(Exception):
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def __init__(self_):
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raise RuntimeError("can't instantiate BadException")
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class InvalidException:
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pass
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def test_capi1():
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import _testcapi
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try:
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_testcapi.raise_exception(BadException, 1)
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except TypeError as err:
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exc, err, tb = sys.exc_info()
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co = tb.tb_frame.f_code
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self.assertEqual(co.co_name, "test_capi1")
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self.assertTrue(co.co_filename.endswith('test_exceptions.py'))
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else:
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self.fail("Expected exception")
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def test_capi2():
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import _testcapi
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try:
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_testcapi.raise_exception(BadException, 0)
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except RuntimeError as err:
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exc, err, tb = sys.exc_info()
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co = tb.tb_frame.f_code
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self.assertEqual(co.co_name, "__init__")
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self.assertTrue(co.co_filename.endswith('test_exceptions.py'))
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co2 = tb.tb_frame.f_back.f_code
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self.assertEqual(co2.co_name, "test_capi2")
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else:
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self.fail("Expected exception")
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def test_capi3():
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import _testcapi
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self.assertRaises(SystemError, _testcapi.raise_exception,
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InvalidException, 1)
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if not sys.platform.startswith('java'):
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test_capi1()
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test_capi2()
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test_capi3()
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def test_WindowsError(self):
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try:
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WindowsError
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except NameError:
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pass
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else:
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self.assertIs(WindowsError, OSError)
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self.assertEqual(str(OSError(1001)), "1001")
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self.assertEqual(str(OSError(1001, "message")),
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"[Errno 1001] message")
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# POSIX errno (9 aka EBADF) is untranslated
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w = OSError(9, 'foo', 'bar')
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self.assertEqual(w.errno, 9)
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self.assertEqual(w.winerror, None)
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self.assertEqual(str(w), "[Errno 9] foo: 'bar'")
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# ERROR_PATH_NOT_FOUND (win error 3) becomes ENOENT (2)
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w = OSError(0, 'foo', 'bar', 3)
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self.assertEqual(w.errno, 2)
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self.assertEqual(w.winerror, 3)
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self.assertEqual(w.strerror, 'foo')
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self.assertEqual(w.filename, 'bar')
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self.assertEqual(w.filename2, None)
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self.assertEqual(str(w), "[WinError 3] foo: 'bar'")
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# Unknown win error becomes EINVAL (22)
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w = OSError(0, 'foo', None, 1001)
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self.assertEqual(w.errno, 22)
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self.assertEqual(w.winerror, 1001)
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self.assertEqual(w.strerror, 'foo')
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self.assertEqual(w.filename, None)
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self.assertEqual(w.filename2, None)
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self.assertEqual(str(w), "[WinError 1001] foo")
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# Non-numeric "errno"
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w = OSError('bar', 'foo')
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self.assertEqual(w.errno, 'bar')
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self.assertEqual(w.winerror, None)
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self.assertEqual(w.strerror, 'foo')
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self.assertEqual(w.filename, None)
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self.assertEqual(w.filename2, None)
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@unittest.skipUnless(sys.platform == 'win32',
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'test specific to Windows')
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def test_windows_message(self):
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"""Should fill in unknown error code in Windows error message"""
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ctypes = import_module('ctypes')
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# this error code has no message, Python formats it as hexadecimal
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code = 3765269347
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with self.assertRaisesRegex(OSError, 'Windows Error 0x%x' % code):
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ctypes.pythonapi.PyErr_SetFromWindowsErr(code)
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def testAttributes(self):
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# test that exception attributes are happy
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exceptionList = [
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(BaseException, (), {'args' : ()}),
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(BaseException, (1, ), {'args' : (1,)}),
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(BaseException, ('foo',),
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{'args' : ('foo',)}),
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(BaseException, ('foo', 1),
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{'args' : ('foo', 1)}),
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(SystemExit, ('foo',),
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{'args' : ('foo',), 'code' : 'foo'}),
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(OSError, ('foo',),
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{'args' : ('foo',), 'filename' : None, 'filename2' : None,
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'errno' : None, 'strerror' : None}),
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(OSError, ('foo', 'bar'),
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{'args' : ('foo', 'bar'),
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'filename' : None, 'filename2' : None,
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'errno' : 'foo', 'strerror' : 'bar'}),
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(OSError, ('foo', 'bar', 'baz'),
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{'args' : ('foo', 'bar'),
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'filename' : 'baz', 'filename2' : None,
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'errno' : 'foo', 'strerror' : 'bar'}),
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(OSError, ('foo', 'bar', 'baz', None, 'quux'),
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{'args' : ('foo', 'bar'), 'filename' : 'baz', 'filename2': 'quux'}),
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(OSError, ('errnoStr', 'strErrorStr', 'filenameStr'),
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{'args' : ('errnoStr', 'strErrorStr'),
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'strerror' : 'strErrorStr', 'errno' : 'errnoStr',
|
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'filename' : 'filenameStr'}),
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(OSError, (1, 'strErrorStr', 'filenameStr'),
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{'args' : (1, 'strErrorStr'), 'errno' : 1,
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'strerror' : 'strErrorStr',
|
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'filename' : 'filenameStr', 'filename2' : None}),
|
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(SyntaxError, (), {'msg' : None, 'text' : None,
|
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'filename' : None, 'lineno' : None, 'offset' : None,
|
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'end_offset': None, 'print_file_and_line' : None}),
|
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(SyntaxError, ('msgStr',),
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{'args' : ('msgStr',), 'text' : None,
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'print_file_and_line' : None, 'msg' : 'msgStr',
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'filename' : None, 'lineno' : None, 'offset' : None,
|
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'end_offset': None}),
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(SyntaxError, ('msgStr', ('filenameStr', 'linenoStr', 'offsetStr',
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'textStr', 'endLinenoStr', 'endOffsetStr')),
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{'offset' : 'offsetStr', 'text' : 'textStr',
|
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'args' : ('msgStr', ('filenameStr', 'linenoStr',
|
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'offsetStr', 'textStr',
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'endLinenoStr', 'endOffsetStr')),
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'print_file_and_line' : None, 'msg' : 'msgStr',
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'filename' : 'filenameStr', 'lineno' : 'linenoStr',
|
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'end_lineno': 'endLinenoStr', 'end_offset': 'endOffsetStr'}),
|
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(SyntaxError, ('msgStr', 'filenameStr', 'linenoStr', 'offsetStr',
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'textStr', 'endLinenoStr', 'endOffsetStr',
|
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'print_file_and_lineStr'),
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{'text' : None,
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'args' : ('msgStr', 'filenameStr', 'linenoStr', 'offsetStr',
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'textStr', 'endLinenoStr', 'endOffsetStr',
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'print_file_and_lineStr'),
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'print_file_and_line' : None, 'msg' : 'msgStr',
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'filename' : None, 'lineno' : None, 'offset' : None,
|
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'end_lineno': None, 'end_offset': None}),
|
|
(UnicodeError, (), {'args' : (),}),
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|
(UnicodeEncodeError, ('ascii', 'a', 0, 1,
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|
'ordinal not in range'),
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|
{'args' : ('ascii', 'a', 0, 1,
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|
'ordinal not in range'),
|
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'encoding' : 'ascii', 'object' : 'a',
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'start' : 0, 'reason' : 'ordinal not in range'}),
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(UnicodeDecodeError, ('ascii', bytearray(b'\xff'), 0, 1,
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'ordinal not in range'),
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{'args' : ('ascii', bytearray(b'\xff'), 0, 1,
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'ordinal not in range'),
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'encoding' : 'ascii', 'object' : b'\xff',
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'start' : 0, 'reason' : 'ordinal not in range'}),
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(UnicodeDecodeError, ('ascii', b'\xff', 0, 1,
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'ordinal not in range'),
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{'args' : ('ascii', b'\xff', 0, 1,
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'ordinal not in range'),
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'encoding' : 'ascii', 'object' : b'\xff',
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'start' : 0, 'reason' : 'ordinal not in range'}),
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(UnicodeTranslateError, ("\u3042", 0, 1, "ouch"),
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{'args' : ('\u3042', 0, 1, 'ouch'),
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'object' : '\u3042', 'reason' : 'ouch',
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'start' : 0, 'end' : 1}),
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(NaiveException, ('foo',),
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{'args': ('foo',), 'x': 'foo'}),
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(SlottedNaiveException, ('foo',),
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{'args': ('foo',), 'x': 'foo'}),
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|
]
|
|
try:
|
|
# More tests are in test_WindowsError
|
|
exceptionList.append(
|
|
(WindowsError, (1, 'strErrorStr', 'filenameStr'),
|
|
{'args' : (1, 'strErrorStr'),
|
|
'strerror' : 'strErrorStr', 'winerror' : None,
|
|
'errno' : 1,
|
|
'filename' : 'filenameStr', 'filename2' : None})
|
|
)
|
|
except NameError:
|
|
pass
|
|
|
|
for exc, args, expected in exceptionList:
|
|
try:
|
|
e = exc(*args)
|
|
except:
|
|
print("\nexc=%r, args=%r" % (exc, args), file=sys.stderr)
|
|
# raise
|
|
else:
|
|
# Verify module name
|
|
if not type(e).__name__.endswith('NaiveException'):
|
|
self.assertEqual(type(e).__module__, 'builtins')
|
|
# Verify no ref leaks in Exc_str()
|
|
s = str(e)
|
|
for checkArgName in expected:
|
|
value = getattr(e, checkArgName)
|
|
self.assertEqual(repr(value),
|
|
repr(expected[checkArgName]),
|
|
'%r.%s == %r, expected %r' % (
|
|
e, checkArgName,
|
|
value, expected[checkArgName]))
|
|
|
|
# test for pickling support
|
|
for p in [pickle]:
|
|
for protocol in range(p.HIGHEST_PROTOCOL + 1):
|
|
s = p.dumps(e, protocol)
|
|
new = p.loads(s)
|
|
for checkArgName in expected:
|
|
got = repr(getattr(new, checkArgName))
|
|
want = repr(expected[checkArgName])
|
|
self.assertEqual(got, want,
|
|
'pickled "%r", attribute "%s' %
|
|
(e, checkArgName))
|
|
|
|
def testWithTraceback(self):
|
|
try:
|
|
raise IndexError(4)
|
|
except:
|
|
tb = sys.exc_info()[2]
|
|
|
|
e = BaseException().with_traceback(tb)
|
|
self.assertIsInstance(e, BaseException)
|
|
self.assertEqual(e.__traceback__, tb)
|
|
|
|
e = IndexError(5).with_traceback(tb)
|
|
self.assertIsInstance(e, IndexError)
|
|
self.assertEqual(e.__traceback__, tb)
|
|
|
|
class MyException(Exception):
|
|
pass
|
|
|
|
e = MyException().with_traceback(tb)
|
|
self.assertIsInstance(e, MyException)
|
|
self.assertEqual(e.__traceback__, tb)
|
|
|
|
def testInvalidTraceback(self):
|
|
try:
|
|
Exception().__traceback__ = 5
|
|
except TypeError as e:
|
|
self.assertIn("__traceback__ must be a traceback", str(e))
|
|
else:
|
|
self.fail("No exception raised")
|
|
|
|
def testInvalidAttrs(self):
|
|
self.assertRaises(TypeError, setattr, Exception(), '__cause__', 1)
|
|
self.assertRaises(TypeError, delattr, Exception(), '__cause__')
|
|
self.assertRaises(TypeError, setattr, Exception(), '__context__', 1)
|
|
self.assertRaises(TypeError, delattr, Exception(), '__context__')
|
|
|
|
def testNoneClearsTracebackAttr(self):
|
|
try:
|
|
raise IndexError(4)
|
|
except:
|
|
tb = sys.exc_info()[2]
|
|
|
|
e = Exception()
|
|
e.__traceback__ = tb
|
|
e.__traceback__ = None
|
|
self.assertEqual(e.__traceback__, None)
|
|
|
|
def testChainingAttrs(self):
|
|
e = Exception()
|
|
self.assertIsNone(e.__context__)
|
|
self.assertIsNone(e.__cause__)
|
|
|
|
e = TypeError()
|
|
self.assertIsNone(e.__context__)
|
|
self.assertIsNone(e.__cause__)
|
|
|
|
class MyException(OSError):
|
|
pass
|
|
|
|
e = MyException()
|
|
self.assertIsNone(e.__context__)
|
|
self.assertIsNone(e.__cause__)
|
|
|
|
def testChainingDescriptors(self):
|
|
try:
|
|
raise Exception()
|
|
except Exception as exc:
|
|
e = exc
|
|
|
|
self.assertIsNone(e.__context__)
|
|
self.assertIsNone(e.__cause__)
|
|
self.assertFalse(e.__suppress_context__)
|
|
|
|
e.__context__ = NameError()
|
|
e.__cause__ = None
|
|
self.assertIsInstance(e.__context__, NameError)
|
|
self.assertIsNone(e.__cause__)
|
|
self.assertTrue(e.__suppress_context__)
|
|
e.__suppress_context__ = False
|
|
self.assertFalse(e.__suppress_context__)
|
|
|
|
def testKeywordArgs(self):
|
|
# test that builtin exception don't take keyword args,
|
|
# but user-defined subclasses can if they want
|
|
self.assertRaises(TypeError, BaseException, a=1)
|
|
|
|
class DerivedException(BaseException):
|
|
def __init__(self, fancy_arg):
|
|
BaseException.__init__(self)
|
|
self.fancy_arg = fancy_arg
|
|
|
|
x = DerivedException(fancy_arg=42)
|
|
self.assertEqual(x.fancy_arg, 42)
|
|
|
|
@no_tracing
|
|
def testInfiniteRecursion(self):
|
|
def f():
|
|
return f()
|
|
self.assertRaises(RecursionError, f)
|
|
|
|
def g():
|
|
try:
|
|
return g()
|
|
except ValueError:
|
|
return -1
|
|
self.assertRaises(RecursionError, g)
|
|
|
|
def test_str(self):
|
|
# Make sure both instances and classes have a str representation.
|
|
self.assertTrue(str(Exception))
|
|
self.assertTrue(str(Exception('a')))
|
|
self.assertTrue(str(Exception('a', 'b')))
|
|
|
|
def testExceptionCleanupNames(self):
|
|
# Make sure the local variable bound to the exception instance by
|
|
# an "except" statement is only visible inside the except block.
|
|
try:
|
|
raise Exception()
|
|
except Exception as e:
|
|
self.assertTrue(e)
|
|
del e
|
|
self.assertNotIn('e', locals())
|
|
|
|
def testExceptionCleanupState(self):
|
|
# Make sure exception state is cleaned up as soon as the except
|
|
# block is left. See #2507
|
|
|
|
class MyException(Exception):
|
|
def __init__(self, obj):
|
|
self.obj = obj
|
|
class MyObj:
|
|
pass
|
|
|
|
def inner_raising_func():
|
|
# Create some references in exception value and traceback
|
|
local_ref = obj
|
|
raise MyException(obj)
|
|
|
|
# Qualified "except" with "as"
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
try:
|
|
inner_raising_func()
|
|
except MyException as e:
|
|
pass
|
|
obj = None
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
# Qualified "except" without "as"
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
try:
|
|
inner_raising_func()
|
|
except MyException:
|
|
pass
|
|
obj = None
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
# Bare "except"
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
try:
|
|
inner_raising_func()
|
|
except:
|
|
pass
|
|
obj = None
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
# "except" with premature block leave
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
for i in [0]:
|
|
try:
|
|
inner_raising_func()
|
|
except:
|
|
break
|
|
obj = None
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
# "except" block raising another exception
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
try:
|
|
try:
|
|
inner_raising_func()
|
|
except:
|
|
raise KeyError
|
|
except KeyError as e:
|
|
# We want to test that the except block above got rid of
|
|
# the exception raised in inner_raising_func(), but it
|
|
# also ends up in the __context__ of the KeyError, so we
|
|
# must clear the latter manually for our test to succeed.
|
|
e.__context__ = None
|
|
obj = None
|
|
obj = wr()
|
|
# guarantee no ref cycles on CPython (don't gc_collect)
|
|
if check_impl_detail(cpython=False):
|
|
gc_collect()
|
|
self.assertIsNone(obj)
|
|
|
|
# Some complicated construct
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
try:
|
|
inner_raising_func()
|
|
except MyException:
|
|
try:
|
|
try:
|
|
raise
|
|
finally:
|
|
raise
|
|
except MyException:
|
|
pass
|
|
obj = None
|
|
if check_impl_detail(cpython=False):
|
|
gc_collect()
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
# Inside an exception-silencing "with" block
|
|
class Context:
|
|
def __enter__(self):
|
|
return self
|
|
def __exit__ (self, exc_type, exc_value, exc_tb):
|
|
return True
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
with Context():
|
|
inner_raising_func()
|
|
obj = None
|
|
if check_impl_detail(cpython=False):
|
|
gc_collect()
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
def test_exception_target_in_nested_scope(self):
|
|
# issue 4617: This used to raise a SyntaxError
|
|
# "can not delete variable 'e' referenced in nested scope"
|
|
def print_error():
|
|
e
|
|
try:
|
|
something
|
|
except Exception as e:
|
|
print_error()
|
|
# implicit "del e" here
|
|
|
|
def test_generator_leaking(self):
|
|
# Test that generator exception state doesn't leak into the calling
|
|
# frame
|
|
def yield_raise():
|
|
try:
|
|
raise KeyError("caught")
|
|
except KeyError:
|
|
yield sys.exc_info()[0]
|
|
yield sys.exc_info()[0]
|
|
yield sys.exc_info()[0]
|
|
g = yield_raise()
|
|
self.assertEqual(next(g), KeyError)
|
|
self.assertEqual(sys.exc_info()[0], None)
|
|
self.assertEqual(next(g), KeyError)
|
|
self.assertEqual(sys.exc_info()[0], None)
|
|
self.assertEqual(next(g), None)
|
|
|
|
# Same test, but inside an exception handler
|
|
try:
|
|
raise TypeError("foo")
|
|
except TypeError:
|
|
g = yield_raise()
|
|
self.assertEqual(next(g), KeyError)
|
|
self.assertEqual(sys.exc_info()[0], TypeError)
|
|
self.assertEqual(next(g), KeyError)
|
|
self.assertEqual(sys.exc_info()[0], TypeError)
|
|
self.assertEqual(next(g), TypeError)
|
|
del g
|
|
self.assertEqual(sys.exc_info()[0], TypeError)
|
|
|
|
def test_generator_leaking2(self):
|
|
# See issue 12475.
|
|
def g():
|
|
yield
|
|
try:
|
|
raise RuntimeError
|
|
except RuntimeError:
|
|
it = g()
|
|
next(it)
|
|
try:
|
|
next(it)
|
|
except StopIteration:
|
|
pass
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
|
|
def test_generator_leaking3(self):
|
|
# See issue #23353. When gen.throw() is called, the caller's
|
|
# exception state should be save and restored.
|
|
def g():
|
|
try:
|
|
yield
|
|
except ZeroDivisionError:
|
|
yield sys.exc_info()[1]
|
|
it = g()
|
|
next(it)
|
|
try:
|
|
1/0
|
|
except ZeroDivisionError as e:
|
|
self.assertIs(sys.exc_info()[1], e)
|
|
gen_exc = it.throw(e)
|
|
self.assertIs(sys.exc_info()[1], e)
|
|
self.assertIs(gen_exc, e)
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
|
|
def test_generator_leaking4(self):
|
|
# See issue #23353. When an exception is raised by a generator,
|
|
# the caller's exception state should still be restored.
|
|
def g():
|
|
try:
|
|
1/0
|
|
except ZeroDivisionError:
|
|
yield sys.exc_info()[0]
|
|
raise
|
|
it = g()
|
|
try:
|
|
raise TypeError
|
|
except TypeError:
|
|
# The caller's exception state (TypeError) is temporarily
|
|
# saved in the generator.
|
|
tp = next(it)
|
|
self.assertIs(tp, ZeroDivisionError)
|
|
try:
|
|
next(it)
|
|
# We can't check it immediately, but while next() returns
|
|
# with an exception, it shouldn't have restored the old
|
|
# exception state (TypeError).
|
|
except ZeroDivisionError as e:
|
|
self.assertIs(sys.exc_info()[1], e)
|
|
# We used to find TypeError here.
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
|
|
def test_generator_doesnt_retain_old_exc(self):
|
|
def g():
|
|
self.assertIsInstance(sys.exc_info()[1], RuntimeError)
|
|
yield
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
it = g()
|
|
try:
|
|
raise RuntimeError
|
|
except RuntimeError:
|
|
next(it)
|
|
self.assertRaises(StopIteration, next, it)
|
|
|
|
def test_generator_finalizing_and_exc_info(self):
|
|
# See #7173
|
|
def simple_gen():
|
|
yield 1
|
|
def run_gen():
|
|
gen = simple_gen()
|
|
try:
|
|
raise RuntimeError
|
|
except RuntimeError:
|
|
return next(gen)
|
|
run_gen()
|
|
gc_collect()
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
|
|
def _check_generator_cleanup_exc_state(self, testfunc):
|
|
# Issue #12791: exception state is cleaned up as soon as a generator
|
|
# is closed (reference cycles are broken).
|
|
class MyException(Exception):
|
|
def __init__(self, obj):
|
|
self.obj = obj
|
|
class MyObj:
|
|
pass
|
|
|
|
def raising_gen():
|
|
try:
|
|
raise MyException(obj)
|
|
except MyException:
|
|
yield
|
|
|
|
obj = MyObj()
|
|
wr = weakref.ref(obj)
|
|
g = raising_gen()
|
|
next(g)
|
|
testfunc(g)
|
|
g = obj = None
|
|
obj = wr()
|
|
self.assertIsNone(obj)
|
|
|
|
def test_generator_throw_cleanup_exc_state(self):
|
|
def do_throw(g):
|
|
try:
|
|
g.throw(RuntimeError())
|
|
except RuntimeError:
|
|
pass
|
|
self._check_generator_cleanup_exc_state(do_throw)
|
|
|
|
def test_generator_close_cleanup_exc_state(self):
|
|
def do_close(g):
|
|
g.close()
|
|
self._check_generator_cleanup_exc_state(do_close)
|
|
|
|
def test_generator_del_cleanup_exc_state(self):
|
|
def do_del(g):
|
|
g = None
|
|
self._check_generator_cleanup_exc_state(do_del)
|
|
|
|
def test_generator_next_cleanup_exc_state(self):
|
|
def do_next(g):
|
|
try:
|
|
next(g)
|
|
except StopIteration:
|
|
pass
|
|
else:
|
|
self.fail("should have raised StopIteration")
|
|
self._check_generator_cleanup_exc_state(do_next)
|
|
|
|
def test_generator_send_cleanup_exc_state(self):
|
|
def do_send(g):
|
|
try:
|
|
g.send(None)
|
|
except StopIteration:
|
|
pass
|
|
else:
|
|
self.fail("should have raised StopIteration")
|
|
self._check_generator_cleanup_exc_state(do_send)
|
|
|
|
def test_3114(self):
|
|
# Bug #3114: in its destructor, MyObject retrieves a pointer to
|
|
# obsolete and/or deallocated objects.
|
|
class MyObject:
|
|
def __del__(self):
|
|
nonlocal e
|
|
e = sys.exc_info()
|
|
e = ()
|
|
try:
|
|
raise Exception(MyObject())
|
|
except:
|
|
pass
|
|
self.assertEqual(e, (None, None, None))
|
|
|
|
def test_unicode_change_attributes(self):
|
|
# See issue 7309. This was a crasher.
|
|
|
|
u = UnicodeEncodeError('baz', 'xxxxx', 1, 5, 'foo')
|
|
self.assertEqual(str(u), "'baz' codec can't encode characters in position 1-4: foo")
|
|
u.end = 2
|
|
self.assertEqual(str(u), "'baz' codec can't encode character '\\x78' in position 1: foo")
|
|
u.end = 5
|
|
u.reason = 0x345345345345345345
|
|
self.assertEqual(str(u), "'baz' codec can't encode characters in position 1-4: 965230951443685724997")
|
|
u.encoding = 4000
|
|
self.assertEqual(str(u), "'4000' codec can't encode characters in position 1-4: 965230951443685724997")
|
|
u.start = 1000
|
|
self.assertEqual(str(u), "'4000' codec can't encode characters in position 1000-4: 965230951443685724997")
|
|
|
|
u = UnicodeDecodeError('baz', b'xxxxx', 1, 5, 'foo')
|
|
self.assertEqual(str(u), "'baz' codec can't decode bytes in position 1-4: foo")
|
|
u.end = 2
|
|
self.assertEqual(str(u), "'baz' codec can't decode byte 0x78 in position 1: foo")
|
|
u.end = 5
|
|
u.reason = 0x345345345345345345
|
|
self.assertEqual(str(u), "'baz' codec can't decode bytes in position 1-4: 965230951443685724997")
|
|
u.encoding = 4000
|
|
self.assertEqual(str(u), "'4000' codec can't decode bytes in position 1-4: 965230951443685724997")
|
|
u.start = 1000
|
|
self.assertEqual(str(u), "'4000' codec can't decode bytes in position 1000-4: 965230951443685724997")
|
|
|
|
u = UnicodeTranslateError('xxxx', 1, 5, 'foo')
|
|
self.assertEqual(str(u), "can't translate characters in position 1-4: foo")
|
|
u.end = 2
|
|
self.assertEqual(str(u), "can't translate character '\\x78' in position 1: foo")
|
|
u.end = 5
|
|
u.reason = 0x345345345345345345
|
|
self.assertEqual(str(u), "can't translate characters in position 1-4: 965230951443685724997")
|
|
u.start = 1000
|
|
self.assertEqual(str(u), "can't translate characters in position 1000-4: 965230951443685724997")
|
|
|
|
def test_unicode_errors_no_object(self):
|
|
# See issue #21134.
|
|
klasses = UnicodeEncodeError, UnicodeDecodeError, UnicodeTranslateError
|
|
for klass in klasses:
|
|
self.assertEqual(str(klass.__new__(klass)), "")
|
|
|
|
@no_tracing
|
|
def test_badisinstance(self):
|
|
# Bug #2542: if issubclass(e, MyException) raises an exception,
|
|
# it should be ignored
|
|
class Meta(type):
|
|
def __subclasscheck__(cls, subclass):
|
|
raise ValueError()
|
|
class MyException(Exception, metaclass=Meta):
|
|
pass
|
|
|
|
with captured_stderr() as stderr:
|
|
try:
|
|
raise KeyError()
|
|
except MyException as e:
|
|
self.fail("exception should not be a MyException")
|
|
except KeyError:
|
|
pass
|
|
except:
|
|
self.fail("Should have raised KeyError")
|
|
else:
|
|
self.fail("Should have raised KeyError")
|
|
|
|
def g():
|
|
try:
|
|
return g()
|
|
except RecursionError:
|
|
return sys.exc_info()
|
|
e, v, tb = g()
|
|
self.assertIsInstance(v, RecursionError, type(v))
|
|
self.assertIn("maximum recursion depth exceeded", str(v))
|
|
|
|
@cpython_only
|
|
def test_recursion_normalizing_exception(self):
|
|
# Issue #22898.
|
|
# Test that a RecursionError is raised when tstate->recursion_depth is
|
|
# equal to recursion_limit in PyErr_NormalizeException() and check
|
|
# that a ResourceWarning is printed.
|
|
# Prior to #22898, the recursivity of PyErr_NormalizeException() was
|
|
# controlled by tstate->recursion_depth and a PyExc_RecursionErrorInst
|
|
# singleton was being used in that case, that held traceback data and
|
|
# locals indefinitely and would cause a segfault in _PyExc_Fini() upon
|
|
# finalization of these locals.
|
|
code = """if 1:
|
|
import sys
|
|
from _testinternalcapi import get_recursion_depth
|
|
|
|
class MyException(Exception): pass
|
|
|
|
def setrecursionlimit(depth):
|
|
while 1:
|
|
try:
|
|
sys.setrecursionlimit(depth)
|
|
return depth
|
|
except RecursionError:
|
|
# sys.setrecursionlimit() raises a RecursionError if
|
|
# the new recursion limit is too low (issue #25274).
|
|
depth += 1
|
|
|
|
def recurse(cnt):
|
|
cnt -= 1
|
|
if cnt:
|
|
recurse(cnt)
|
|
else:
|
|
generator.throw(MyException)
|
|
|
|
def gen():
|
|
f = open(%a, mode='rb', buffering=0)
|
|
yield
|
|
|
|
generator = gen()
|
|
next(generator)
|
|
recursionlimit = sys.getrecursionlimit()
|
|
depth = get_recursion_depth()
|
|
try:
|
|
# Upon the last recursive invocation of recurse(),
|
|
# tstate->recursion_depth is equal to (recursion_limit - 1)
|
|
# and is equal to recursion_limit when _gen_throw() calls
|
|
# PyErr_NormalizeException().
|
|
recurse(setrecursionlimit(depth + 2) - depth)
|
|
finally:
|
|
sys.setrecursionlimit(recursionlimit)
|
|
print('Done.')
|
|
""" % __file__
|
|
rc, out, err = script_helper.assert_python_failure("-Wd", "-c", code)
|
|
# Check that the program does not fail with SIGABRT.
|
|
self.assertEqual(rc, 1)
|
|
self.assertIn(b'RecursionError', err)
|
|
self.assertIn(b'ResourceWarning', err)
|
|
self.assertIn(b'Done.', out)
|
|
|
|
@cpython_only
|
|
def test_recursion_normalizing_infinite_exception(self):
|
|
# Issue #30697. Test that a RecursionError is raised when
|
|
# PyErr_NormalizeException() maximum recursion depth has been
|
|
# exceeded.
|
|
code = """if 1:
|
|
import _testcapi
|
|
try:
|
|
raise _testcapi.RecursingInfinitelyError
|
|
finally:
|
|
print('Done.')
|
|
"""
|
|
rc, out, err = script_helper.assert_python_failure("-c", code)
|
|
self.assertEqual(rc, 1)
|
|
self.assertIn(b'RecursionError: maximum recursion depth exceeded '
|
|
b'while normalizing an exception', err)
|
|
self.assertIn(b'Done.', out)
|
|
|
|
|
|
def test_recursion_in_except_handler(self):
|
|
|
|
def set_relative_recursion_limit(n):
|
|
depth = 1
|
|
while True:
|
|
try:
|
|
sys.setrecursionlimit(depth)
|
|
except RecursionError:
|
|
depth += 1
|
|
else:
|
|
break
|
|
sys.setrecursionlimit(depth+n)
|
|
|
|
def recurse_in_except():
|
|
try:
|
|
1/0
|
|
except:
|
|
recurse_in_except()
|
|
|
|
def recurse_after_except():
|
|
try:
|
|
1/0
|
|
except:
|
|
pass
|
|
recurse_after_except()
|
|
|
|
def recurse_in_body_and_except():
|
|
try:
|
|
recurse_in_body_and_except()
|
|
except:
|
|
recurse_in_body_and_except()
|
|
|
|
recursionlimit = sys.getrecursionlimit()
|
|
try:
|
|
set_relative_recursion_limit(10)
|
|
for func in (recurse_in_except, recurse_after_except, recurse_in_body_and_except):
|
|
with self.subTest(func=func):
|
|
try:
|
|
func()
|
|
except RecursionError:
|
|
pass
|
|
else:
|
|
self.fail("Should have raised a RecursionError")
|
|
finally:
|
|
sys.setrecursionlimit(recursionlimit)
|
|
|
|
|
|
@cpython_only
|
|
def test_recursion_normalizing_with_no_memory(self):
|
|
# Issue #30697. Test that in the abort that occurs when there is no
|
|
# memory left and the size of the Python frames stack is greater than
|
|
# the size of the list of preallocated MemoryError instances, the
|
|
# Fatal Python error message mentions MemoryError.
|
|
code = """if 1:
|
|
import _testcapi
|
|
class C(): pass
|
|
def recurse(cnt):
|
|
cnt -= 1
|
|
if cnt:
|
|
recurse(cnt)
|
|
else:
|
|
_testcapi.set_nomemory(0)
|
|
C()
|
|
recurse(16)
|
|
"""
|
|
with SuppressCrashReport():
|
|
rc, out, err = script_helper.assert_python_failure("-c", code)
|
|
self.assertIn(b'Fatal Python error: _PyErr_NormalizeException: '
|
|
b'Cannot recover from MemoryErrors while '
|
|
b'normalizing exceptions.', err)
|
|
|
|
@cpython_only
|
|
def test_MemoryError(self):
|
|
# PyErr_NoMemory always raises the same exception instance.
|
|
# Check that the traceback is not doubled.
|
|
import traceback
|
|
from _testcapi import raise_memoryerror
|
|
def raiseMemError():
|
|
try:
|
|
raise_memoryerror()
|
|
except MemoryError as e:
|
|
tb = e.__traceback__
|
|
else:
|
|
self.fail("Should have raised a MemoryError")
|
|
return traceback.format_tb(tb)
|
|
|
|
tb1 = raiseMemError()
|
|
tb2 = raiseMemError()
|
|
self.assertEqual(tb1, tb2)
|
|
|
|
@cpython_only
|
|
def test_exception_with_doc(self):
|
|
import _testcapi
|
|
doc2 = "This is a test docstring."
|
|
doc4 = "This is another test docstring."
|
|
|
|
self.assertRaises(SystemError, _testcapi.make_exception_with_doc,
|
|
"error1")
|
|
|
|
# test basic usage of PyErr_NewException
|
|
error1 = _testcapi.make_exception_with_doc("_testcapi.error1")
|
|
self.assertIs(type(error1), type)
|
|
self.assertTrue(issubclass(error1, Exception))
|
|
self.assertIsNone(error1.__doc__)
|
|
|
|
# test with given docstring
|
|
error2 = _testcapi.make_exception_with_doc("_testcapi.error2", doc2)
|
|
self.assertEqual(error2.__doc__, doc2)
|
|
|
|
# test with explicit base (without docstring)
|
|
error3 = _testcapi.make_exception_with_doc("_testcapi.error3",
|
|
base=error2)
|
|
self.assertTrue(issubclass(error3, error2))
|
|
|
|
# test with explicit base tuple
|
|
class C(object):
|
|
pass
|
|
error4 = _testcapi.make_exception_with_doc("_testcapi.error4", doc4,
|
|
(error3, C))
|
|
self.assertTrue(issubclass(error4, error3))
|
|
self.assertTrue(issubclass(error4, C))
|
|
self.assertEqual(error4.__doc__, doc4)
|
|
|
|
# test with explicit dictionary
|
|
error5 = _testcapi.make_exception_with_doc("_testcapi.error5", "",
|
|
error4, {'a': 1})
|
|
self.assertTrue(issubclass(error5, error4))
|
|
self.assertEqual(error5.a, 1)
|
|
self.assertEqual(error5.__doc__, "")
|
|
|
|
@cpython_only
|
|
def test_memory_error_cleanup(self):
|
|
# Issue #5437: preallocated MemoryError instances should not keep
|
|
# traceback objects alive.
|
|
from _testcapi import raise_memoryerror
|
|
class C:
|
|
pass
|
|
wr = None
|
|
def inner():
|
|
nonlocal wr
|
|
c = C()
|
|
wr = weakref.ref(c)
|
|
raise_memoryerror()
|
|
# We cannot use assertRaises since it manually deletes the traceback
|
|
try:
|
|
inner()
|
|
except MemoryError as e:
|
|
self.assertNotEqual(wr(), None)
|
|
else:
|
|
self.fail("MemoryError not raised")
|
|
self.assertEqual(wr(), None)
|
|
|
|
@no_tracing
|
|
def test_recursion_error_cleanup(self):
|
|
# Same test as above, but with "recursion exceeded" errors
|
|
class C:
|
|
pass
|
|
wr = None
|
|
def inner():
|
|
nonlocal wr
|
|
c = C()
|
|
wr = weakref.ref(c)
|
|
inner()
|
|
# We cannot use assertRaises since it manually deletes the traceback
|
|
try:
|
|
inner()
|
|
except RecursionError as e:
|
|
self.assertNotEqual(wr(), None)
|
|
else:
|
|
self.fail("RecursionError not raised")
|
|
self.assertEqual(wr(), None)
|
|
|
|
def test_errno_ENOTDIR(self):
|
|
# Issue #12802: "not a directory" errors are ENOTDIR even on Windows
|
|
with self.assertRaises(OSError) as cm:
|
|
os.listdir(__file__)
|
|
self.assertEqual(cm.exception.errno, errno.ENOTDIR, cm.exception)
|
|
|
|
def test_unraisable(self):
|
|
# Issue #22836: PyErr_WriteUnraisable() should give sensible reports
|
|
class BrokenDel:
|
|
def __del__(self):
|
|
exc = ValueError("del is broken")
|
|
# The following line is included in the traceback report:
|
|
raise exc
|
|
|
|
obj = BrokenDel()
|
|
with support.catch_unraisable_exception() as cm:
|
|
del obj
|
|
|
|
self.assertEqual(cm.unraisable.object, BrokenDel.__del__)
|
|
self.assertIsNotNone(cm.unraisable.exc_traceback)
|
|
|
|
def test_unhandled(self):
|
|
# Check for sensible reporting of unhandled exceptions
|
|
for exc_type in (ValueError, BrokenStrException):
|
|
with self.subTest(exc_type):
|
|
try:
|
|
exc = exc_type("test message")
|
|
# The following line is included in the traceback report:
|
|
raise exc
|
|
except exc_type:
|
|
with captured_stderr() as stderr:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
report = stderr.getvalue()
|
|
self.assertIn("test_exceptions.py", report)
|
|
self.assertIn("raise exc", report)
|
|
self.assertIn(exc_type.__name__, report)
|
|
if exc_type is BrokenStrException:
|
|
self.assertIn("<exception str() failed>", report)
|
|
else:
|
|
self.assertIn("test message", report)
|
|
self.assertTrue(report.endswith("\n"))
|
|
|
|
@cpython_only
|
|
def test_memory_error_in_PyErr_PrintEx(self):
|
|
code = """if 1:
|
|
import _testcapi
|
|
class C(): pass
|
|
_testcapi.set_nomemory(0, %d)
|
|
C()
|
|
"""
|
|
|
|
# Issue #30817: Abort in PyErr_PrintEx() when no memory.
|
|
# Span a large range of tests as the CPython code always evolves with
|
|
# changes that add or remove memory allocations.
|
|
for i in range(1, 20):
|
|
rc, out, err = script_helper.assert_python_failure("-c", code % i)
|
|
self.assertIn(rc, (1, 120))
|
|
self.assertIn(b'MemoryError', err)
|
|
|
|
def test_yield_in_nested_try_excepts(self):
|
|
#Issue #25612
|
|
class MainError(Exception):
|
|
pass
|
|
|
|
class SubError(Exception):
|
|
pass
|
|
|
|
def main():
|
|
try:
|
|
raise MainError()
|
|
except MainError:
|
|
try:
|
|
yield
|
|
except SubError:
|
|
pass
|
|
raise
|
|
|
|
coro = main()
|
|
coro.send(None)
|
|
with self.assertRaises(MainError):
|
|
coro.throw(SubError())
|
|
|
|
def test_generator_doesnt_retain_old_exc2(self):
|
|
#Issue 28884#msg282532
|
|
def g():
|
|
try:
|
|
raise ValueError
|
|
except ValueError:
|
|
yield 1
|
|
self.assertEqual(sys.exc_info(), (None, None, None))
|
|
yield 2
|
|
|
|
gen = g()
|
|
|
|
try:
|
|
raise IndexError
|
|
except IndexError:
|
|
self.assertEqual(next(gen), 1)
|
|
self.assertEqual(next(gen), 2)
|
|
|
|
def test_raise_in_generator(self):
|
|
#Issue 25612#msg304117
|
|
def g():
|
|
yield 1
|
|
raise
|
|
yield 2
|
|
|
|
with self.assertRaises(ZeroDivisionError):
|
|
i = g()
|
|
try:
|
|
1/0
|
|
except:
|
|
next(i)
|
|
next(i)
|
|
|
|
@unittest.skipUnless(__debug__, "Won't work if __debug__ is False")
|
|
def test_assert_shadowing(self):
|
|
# Shadowing AssertionError would cause the assert statement to
|
|
# misbehave.
|
|
global AssertionError
|
|
AssertionError = TypeError
|
|
try:
|
|
assert False, 'hello'
|
|
except BaseException as e:
|
|
del AssertionError
|
|
self.assertIsInstance(e, AssertionError)
|
|
self.assertEqual(str(e), 'hello')
|
|
else:
|
|
del AssertionError
|
|
self.fail('Expected exception')
|
|
|
|
def test_memory_error_subclasses(self):
|
|
# bpo-41654: MemoryError instances use a freelist of objects that are
|
|
# linked using the 'dict' attribute when they are inactive/dead.
|
|
# Subclasses of MemoryError should not participate in the freelist
|
|
# schema. This test creates a MemoryError object and keeps it alive
|
|
# (therefore advancing the freelist) and then it creates and destroys a
|
|
# subclass object. Finally, it checks that creating a new MemoryError
|
|
# succeeds, proving that the freelist is not corrupted.
|
|
|
|
class TestException(MemoryError):
|
|
pass
|
|
|
|
try:
|
|
raise MemoryError
|
|
except MemoryError as exc:
|
|
inst = exc
|
|
|
|
try:
|
|
raise TestException
|
|
except Exception:
|
|
pass
|
|
|
|
for _ in range(10):
|
|
try:
|
|
raise MemoryError
|
|
except MemoryError as exc:
|
|
pass
|
|
|
|
gc_collect()
|
|
|
|
global_for_suggestions = None
|
|
|
|
class NameErrorTests(unittest.TestCase):
|
|
def test_name_error_has_name(self):
|
|
try:
|
|
bluch
|
|
except NameError as exc:
|
|
self.assertEqual("bluch", exc.name)
|
|
|
|
def test_name_error_suggestions(self):
|
|
def Substitution():
|
|
noise = more_noise = a = bc = None
|
|
blech = None
|
|
print(bluch)
|
|
|
|
def Elimination():
|
|
noise = more_noise = a = bc = None
|
|
blch = None
|
|
print(bluch)
|
|
|
|
def Addition():
|
|
noise = more_noise = a = bc = None
|
|
bluchin = None
|
|
print(bluch)
|
|
|
|
def SubstitutionOverElimination():
|
|
blach = None
|
|
bluc = None
|
|
print(bluch)
|
|
|
|
def SubstitutionOverAddition():
|
|
blach = None
|
|
bluchi = None
|
|
print(bluch)
|
|
|
|
def EliminationOverAddition():
|
|
blucha = None
|
|
bluc = None
|
|
print(bluch)
|
|
|
|
for func, suggestion in [(Substitution, "'blech'?"),
|
|
(Elimination, "'blch'?"),
|
|
(Addition, "'bluchin'?"),
|
|
(EliminationOverAddition, "'blucha'?"),
|
|
(SubstitutionOverElimination, "'blach'?"),
|
|
(SubstitutionOverAddition, "'blach'?")]:
|
|
err = None
|
|
try:
|
|
func()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
self.assertIn(suggestion, err.getvalue())
|
|
|
|
def test_name_error_suggestions_from_globals(self):
|
|
def func():
|
|
print(global_for_suggestio)
|
|
try:
|
|
func()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
self.assertIn("'global_for_suggestions'?", err.getvalue())
|
|
|
|
def test_name_error_suggestions_from_builtins(self):
|
|
def func():
|
|
print(AttributeErrop)
|
|
try:
|
|
func()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
self.assertIn("'AttributeError'?", err.getvalue())
|
|
|
|
def test_name_error_suggestions_do_not_trigger_for_long_names(self):
|
|
def f():
|
|
somethingverywronghehehehehehe = None
|
|
print(somethingverywronghe)
|
|
|
|
try:
|
|
f()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("somethingverywronghehe", err.getvalue())
|
|
|
|
def test_name_error_suggestions_do_not_trigger_for_too_many_locals(self):
|
|
def f():
|
|
# Mutating locals() is unreliable, so we need to do it by hand
|
|
a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = a9 = a10 = a11 = a12 = a13 = \
|
|
a14 = a15 = a16 = a17 = a18 = a19 = a20 = a21 = a22 = a23 = a24 = a25 = \
|
|
a26 = a27 = a28 = a29 = a30 = a31 = a32 = a33 = a34 = a35 = a36 = a37 = \
|
|
a38 = a39 = a40 = a41 = a42 = a43 = a44 = a45 = a46 = a47 = a48 = a49 = \
|
|
a50 = a51 = a52 = a53 = a54 = a55 = a56 = a57 = a58 = a59 = a60 = a61 = \
|
|
a62 = a63 = a64 = a65 = a66 = a67 = a68 = a69 = a70 = a71 = a72 = a73 = \
|
|
a74 = a75 = a76 = a77 = a78 = a79 = a80 = a81 = a82 = a83 = a84 = a85 = \
|
|
a86 = a87 = a88 = a89 = a90 = a91 = a92 = a93 = a94 = a95 = a96 = a97 = \
|
|
a98 = a99 = a100 = a101 = a102 = a103 = a104 = a105 = a106 = a107 = \
|
|
a108 = a109 = a110 = a111 = a112 = a113 = a114 = a115 = a116 = a117 = \
|
|
a118 = a119 = a120 = a121 = a122 = a123 = a124 = a125 = a126 = \
|
|
a127 = a128 = a129 = a130 = a131 = a132 = a133 = a134 = a135 = a136 = \
|
|
a137 = a138 = a139 = a140 = a141 = a142 = a143 = a144 = a145 = \
|
|
a146 = a147 = a148 = a149 = a150 = a151 = a152 = a153 = a154 = a155 = \
|
|
a156 = a157 = a158 = a159 = a160 = a161 = None
|
|
print(a0)
|
|
|
|
try:
|
|
f()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("a1", err.getvalue())
|
|
|
|
def test_name_error_with_custom_exceptions(self):
|
|
def f():
|
|
blech = None
|
|
raise NameError()
|
|
|
|
try:
|
|
f()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("blech", err.getvalue())
|
|
|
|
def f():
|
|
blech = None
|
|
raise NameError
|
|
|
|
try:
|
|
f()
|
|
except NameError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("blech", err.getvalue())
|
|
|
|
def test_unbound_local_error_doesn_not_match(self):
|
|
def foo():
|
|
something = 3
|
|
print(somethong)
|
|
somethong = 3
|
|
|
|
try:
|
|
foo()
|
|
except UnboundLocalError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("something", err.getvalue())
|
|
|
|
|
|
class AttributeErrorTests(unittest.TestCase):
|
|
def test_attributes(self):
|
|
# Setting 'attr' should not be a problem.
|
|
exc = AttributeError('Ouch!')
|
|
self.assertIsNone(exc.name)
|
|
self.assertIsNone(exc.obj)
|
|
|
|
sentinel = object()
|
|
exc = AttributeError('Ouch', name='carry', obj=sentinel)
|
|
self.assertEqual(exc.name, 'carry')
|
|
self.assertIs(exc.obj, sentinel)
|
|
|
|
def test_getattr_has_name_and_obj(self):
|
|
class A:
|
|
blech = None
|
|
|
|
obj = A()
|
|
try:
|
|
obj.bluch
|
|
except AttributeError as exc:
|
|
self.assertEqual("bluch", exc.name)
|
|
self.assertEqual(obj, exc.obj)
|
|
|
|
def test_getattr_has_name_and_obj_for_method(self):
|
|
class A:
|
|
def blech(self):
|
|
return
|
|
|
|
obj = A()
|
|
try:
|
|
obj.bluch()
|
|
except AttributeError as exc:
|
|
self.assertEqual("bluch", exc.name)
|
|
self.assertEqual(obj, exc.obj)
|
|
|
|
def test_getattr_suggestions(self):
|
|
class Substitution:
|
|
noise = more_noise = a = bc = None
|
|
blech = None
|
|
|
|
class Elimination:
|
|
noise = more_noise = a = bc = None
|
|
blch = None
|
|
|
|
class Addition:
|
|
noise = more_noise = a = bc = None
|
|
bluchin = None
|
|
|
|
class SubstitutionOverElimination:
|
|
blach = None
|
|
bluc = None
|
|
|
|
class SubstitutionOverAddition:
|
|
blach = None
|
|
bluchi = None
|
|
|
|
class EliminationOverAddition:
|
|
blucha = None
|
|
bluc = None
|
|
|
|
for cls, suggestion in [(Substitution, "'blech'?"),
|
|
(Elimination, "'blch'?"),
|
|
(Addition, "'bluchin'?"),
|
|
(EliminationOverAddition, "'bluc'?"),
|
|
(SubstitutionOverElimination, "'blach'?"),
|
|
(SubstitutionOverAddition, "'blach'?")]:
|
|
try:
|
|
cls().bluch
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertIn(suggestion, err.getvalue())
|
|
|
|
def test_getattr_suggestions_do_not_trigger_for_long_attributes(self):
|
|
class A:
|
|
blech = None
|
|
|
|
try:
|
|
A().somethingverywrong
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("blech", err.getvalue())
|
|
|
|
def test_getattr_suggestions_do_not_trigger_for_big_dicts(self):
|
|
class A:
|
|
blech = None
|
|
# A class with a very big __dict__ will not be consider
|
|
# for suggestions.
|
|
for index in range(160):
|
|
setattr(A, f"index_{index}", None)
|
|
|
|
try:
|
|
A().bluch
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("blech", err.getvalue())
|
|
|
|
def test_getattr_suggestions_no_args(self):
|
|
class A:
|
|
blech = None
|
|
def __getattr__(self, attr):
|
|
raise AttributeError()
|
|
|
|
try:
|
|
A().bluch
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertIn("blech", err.getvalue())
|
|
|
|
class A:
|
|
blech = None
|
|
def __getattr__(self, attr):
|
|
raise AttributeError
|
|
|
|
try:
|
|
A().bluch
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertIn("blech", err.getvalue())
|
|
|
|
def test_getattr_suggestions_invalid_args(self):
|
|
class NonStringifyClass:
|
|
__str__ = None
|
|
__repr__ = None
|
|
|
|
class A:
|
|
blech = None
|
|
def __getattr__(self, attr):
|
|
raise AttributeError(NonStringifyClass())
|
|
|
|
class B:
|
|
blech = None
|
|
def __getattr__(self, attr):
|
|
raise AttributeError("Error", 23)
|
|
|
|
class C:
|
|
blech = None
|
|
def __getattr__(self, attr):
|
|
raise AttributeError(23)
|
|
|
|
for cls in [A, B, C]:
|
|
try:
|
|
cls().bluch
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertIn("blech", err.getvalue())
|
|
|
|
def test_attribute_error_with_failing_dict(self):
|
|
class T:
|
|
bluch = 1
|
|
def __dir__(self):
|
|
raise AttributeError("oh no!")
|
|
|
|
try:
|
|
T().blich
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("blech", err.getvalue())
|
|
self.assertNotIn("oh no!", err.getvalue())
|
|
|
|
def test_attribute_error_with_bad_name(self):
|
|
try:
|
|
raise AttributeError(name=12, obj=23)
|
|
except AttributeError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
|
|
self.assertNotIn("?", err.getvalue())
|
|
|
|
|
|
class ImportErrorTests(unittest.TestCase):
|
|
|
|
def test_attributes(self):
|
|
# Setting 'name' and 'path' should not be a problem.
|
|
exc = ImportError('test')
|
|
self.assertIsNone(exc.name)
|
|
self.assertIsNone(exc.path)
|
|
|
|
exc = ImportError('test', name='somemodule')
|
|
self.assertEqual(exc.name, 'somemodule')
|
|
self.assertIsNone(exc.path)
|
|
|
|
exc = ImportError('test', path='somepath')
|
|
self.assertEqual(exc.path, 'somepath')
|
|
self.assertIsNone(exc.name)
|
|
|
|
exc = ImportError('test', path='somepath', name='somename')
|
|
self.assertEqual(exc.name, 'somename')
|
|
self.assertEqual(exc.path, 'somepath')
|
|
|
|
msg = "'invalid' is an invalid keyword argument for ImportError"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
ImportError('test', invalid='keyword')
|
|
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
ImportError('test', name='name', invalid='keyword')
|
|
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
ImportError('test', path='path', invalid='keyword')
|
|
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
ImportError(invalid='keyword')
|
|
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
ImportError('test', invalid='keyword', another=True)
|
|
|
|
def test_reset_attributes(self):
|
|
exc = ImportError('test', name='name', path='path')
|
|
self.assertEqual(exc.args, ('test',))
|
|
self.assertEqual(exc.msg, 'test')
|
|
self.assertEqual(exc.name, 'name')
|
|
self.assertEqual(exc.path, 'path')
|
|
|
|
# Reset not specified attributes
|
|
exc.__init__()
|
|
self.assertEqual(exc.args, ())
|
|
self.assertEqual(exc.msg, None)
|
|
self.assertEqual(exc.name, None)
|
|
self.assertEqual(exc.path, None)
|
|
|
|
def test_non_str_argument(self):
|
|
# Issue #15778
|
|
with check_warnings(('', BytesWarning), quiet=True):
|
|
arg = b'abc'
|
|
exc = ImportError(arg)
|
|
self.assertEqual(str(arg), str(exc))
|
|
|
|
def test_copy_pickle(self):
|
|
for kwargs in (dict(),
|
|
dict(name='somename'),
|
|
dict(path='somepath'),
|
|
dict(name='somename', path='somepath')):
|
|
orig = ImportError('test', **kwargs)
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
exc = pickle.loads(pickle.dumps(orig, proto))
|
|
self.assertEqual(exc.args, ('test',))
|
|
self.assertEqual(exc.msg, 'test')
|
|
self.assertEqual(exc.name, orig.name)
|
|
self.assertEqual(exc.path, orig.path)
|
|
for c in copy.copy, copy.deepcopy:
|
|
exc = c(orig)
|
|
self.assertEqual(exc.args, ('test',))
|
|
self.assertEqual(exc.msg, 'test')
|
|
self.assertEqual(exc.name, orig.name)
|
|
self.assertEqual(exc.path, orig.path)
|
|
|
|
class SyntaxErrorTests(unittest.TestCase):
|
|
def test_range_of_offsets(self):
|
|
cases = [
|
|
# Basic range from 2->7
|
|
(("bad.py", 1, 2, "abcdefg", 1, 7),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
^^^^^
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# end_offset = start_offset + 1
|
|
(("bad.py", 1, 2, "abcdefg", 1, 3),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
^
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# Negative end offset
|
|
(("bad.py", 1, 2, "abcdefg", 1, -2),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
^
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# end offset before starting offset
|
|
(("bad.py", 1, 4, "abcdefg", 1, 2),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
^
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# Both offsets negative
|
|
(("bad.py", 1, -4, "abcdefg", 1, -2),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# Both offsets negative and the end more negative
|
|
(("bad.py", 1, -4, "abcdefg", 1, -5),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# Both offsets 0
|
|
(("bad.py", 1, 0, "abcdefg", 1, 0),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# Start offset 0 and end offset not 0
|
|
(("bad.py", 1, 0, "abcdefg", 1, 5),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
SyntaxError: bad bad
|
|
""")),
|
|
# End offset pass the source lenght
|
|
(("bad.py", 1, 2, "abcdefg", 1, 100),
|
|
dedent(
|
|
"""
|
|
File "bad.py", line 1
|
|
abcdefg
|
|
^^^^^^
|
|
SyntaxError: bad bad
|
|
""")),
|
|
]
|
|
for args, expected in cases:
|
|
with self.subTest(args=args):
|
|
try:
|
|
raise SyntaxError("bad bad", args)
|
|
except SyntaxError as exc:
|
|
with support.captured_stderr() as err:
|
|
sys.__excepthook__(*sys.exc_info())
|
|
the_exception = exc
|
|
|
|
def test_attributes_new_constructor(self):
|
|
args = ("bad.py", 1, 2, "abcdefg", 1, 100)
|
|
the_exception = SyntaxError("bad bad", args)
|
|
filename, lineno, offset, error, end_lineno, end_offset = args
|
|
self.assertEqual(filename, the_exception.filename)
|
|
self.assertEqual(lineno, the_exception.lineno)
|
|
self.assertEqual(end_lineno, the_exception.end_lineno)
|
|
self.assertEqual(offset, the_exception.offset)
|
|
self.assertEqual(end_offset, the_exception.end_offset)
|
|
self.assertEqual(error, the_exception.text)
|
|
self.assertEqual("bad bad", the_exception.msg)
|
|
|
|
def test_attributes_old_constructor(self):
|
|
args = ("bad.py", 1, 2, "abcdefg")
|
|
the_exception = SyntaxError("bad bad", args)
|
|
filename, lineno, offset, error = args
|
|
self.assertEqual(filename, the_exception.filename)
|
|
self.assertEqual(lineno, the_exception.lineno)
|
|
self.assertEqual(None, the_exception.end_lineno)
|
|
self.assertEqual(offset, the_exception.offset)
|
|
self.assertEqual(None, the_exception.end_offset)
|
|
self.assertEqual(error, the_exception.text)
|
|
self.assertEqual("bad bad", the_exception.msg)
|
|
|
|
def test_incorrect_constructor(self):
|
|
args = ("bad.py", 1, 2)
|
|
self.assertRaises(TypeError, SyntaxError, "bad bad", args)
|
|
|
|
args = ("bad.py", 1, 2, 4, 5, 6, 7)
|
|
self.assertRaises(TypeError, SyntaxError, "bad bad", args)
|
|
|
|
args = ("bad.py", 1, 2, "abcdefg", 1)
|
|
self.assertRaises(TypeError, SyntaxError, "bad bad", args)
|
|
|
|
|
|
class PEP626Tests(unittest.TestCase):
|
|
|
|
def lineno_after_raise(self, f, line):
|
|
try:
|
|
f()
|
|
except Exception as ex:
|
|
t = ex.__traceback__
|
|
while t.tb_next:
|
|
t = t.tb_next
|
|
frame = t.tb_frame
|
|
self.assertEqual(frame.f_lineno-frame.f_code.co_firstlineno, line)
|
|
|
|
def test_lineno_after_raise_simple(self):
|
|
def simple():
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(simple, 1)
|
|
|
|
def test_lineno_after_raise_in_except(self):
|
|
def in_except():
|
|
try:
|
|
1/0
|
|
except:
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(in_except, 4)
|
|
|
|
def test_lineno_after_other_except(self):
|
|
def other_except():
|
|
try:
|
|
1/0
|
|
except TypeError as ex:
|
|
pass
|
|
self.lineno_after_raise(other_except, 3)
|
|
|
|
def test_lineno_in_named_except(self):
|
|
def in_named_except():
|
|
try:
|
|
1/0
|
|
except Exception as ex:
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(in_named_except, 4)
|
|
|
|
def test_lineno_in_try(self):
|
|
def in_try():
|
|
try:
|
|
1/0
|
|
finally:
|
|
pass
|
|
self.lineno_after_raise(in_try, 4)
|
|
|
|
def test_lineno_in_finally_normal(self):
|
|
def in_finally_normal():
|
|
try:
|
|
pass
|
|
finally:
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(in_finally_normal, 4)
|
|
|
|
def test_lineno_in_finally_except(self):
|
|
def in_finally_except():
|
|
try:
|
|
1/0
|
|
finally:
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(in_finally_except, 4)
|
|
|
|
def test_lineno_after_with(self):
|
|
class Noop:
|
|
def __enter__(self):
|
|
return self
|
|
def __exit__(self, *args):
|
|
pass
|
|
def after_with():
|
|
with Noop():
|
|
1/0
|
|
pass
|
|
self.lineno_after_raise(after_with, 2)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|