| # Python test set -- part 5, built-in exceptions |
| |
| import os |
| import sys |
| import unittest |
| import pickle, cPickle |
| |
| from test.test_support import (TESTFN, unlink, run_unittest, captured_output, |
| check_warnings, cpython_only) |
| from test.test_pep352 import ignore_deprecation_warnings |
| |
| # XXX This is not really enough, each *operation* should be tested! |
| |
| class ExceptionTests(unittest.TestCase): |
| |
| def testReload(self): |
| # Reloading the built-in exceptions module failed prior to Py2.2, while it |
| # should act the same as reloading built-in sys. |
| try: |
| from imp import reload |
| import exceptions |
| reload(exceptions) |
| except ImportError, e: |
| self.fail("reloading exceptions: %s" % e) |
| |
| def raise_catch(self, exc, excname): |
| try: |
| raise exc, "spam" |
| except exc, err: |
| buf1 = str(err) |
| try: |
| raise exc("spam") |
| except exc, err: |
| buf2 = str(err) |
| self.assertEqual(buf1, buf2) |
| self.assertEqual(exc.__name__, excname) |
| |
| def testRaising(self): |
| self.raise_catch(AttributeError, "AttributeError") |
| self.assertRaises(AttributeError, getattr, sys, "undefined_attribute") |
| |
| self.raise_catch(EOFError, "EOFError") |
| fp = open(TESTFN, 'w') |
| fp.close() |
| fp = open(TESTFN, 'r') |
| savestdin = sys.stdin |
| try: |
| try: |
| sys.stdin = fp |
| x = raw_input() |
| except EOFError: |
| pass |
| finally: |
| sys.stdin = savestdin |
| fp.close() |
| unlink(TESTFN) |
| |
| self.raise_catch(IOError, "IOError") |
| self.assertRaises(IOError, open, 'this file does not exist', 'r') |
| |
| self.raise_catch(ImportError, "ImportError") |
| self.assertRaises(ImportError, __import__, "undefined_module") |
| |
| self.raise_catch(IndexError, "IndexError") |
| x = [] |
| self.assertRaises(IndexError, x.__getitem__, 10) |
| |
| self.raise_catch(KeyError, "KeyError") |
| x = {} |
| self.assertRaises(KeyError, x.__getitem__, 'key') |
| |
| self.raise_catch(KeyboardInterrupt, "KeyboardInterrupt") |
| |
| self.raise_catch(MemoryError, "MemoryError") |
| |
| self.raise_catch(NameError, "NameError") |
| try: x = undefined_variable |
| except NameError: pass |
| |
| self.raise_catch(OverflowError, "OverflowError") |
| x = 1 |
| for dummy in range(128): |
| x += x # this simply shouldn't blow up |
| |
| self.raise_catch(RuntimeError, "RuntimeError") |
| |
| self.raise_catch(SyntaxError, "SyntaxError") |
| try: exec '/\n' |
| except SyntaxError: pass |
| |
| self.raise_catch(IndentationError, "IndentationError") |
| |
| self.raise_catch(TabError, "TabError") |
| # can only be tested under -tt, and is the only test for -tt |
| #try: compile("try:\n\t1/0\n \t1/0\nfinally:\n pass\n", '<string>', 'exec') |
| #except TabError: pass |
| #else: self.fail("TabError not raised") |
| |
| self.raise_catch(SystemError, "SystemError") |
| |
| self.raise_catch(SystemExit, "SystemExit") |
| self.assertRaises(SystemExit, sys.exit, 0) |
| |
| self.raise_catch(TypeError, "TypeError") |
| try: [] + () |
| except TypeError: pass |
| |
| self.raise_catch(ValueError, "ValueError") |
| self.assertRaises(ValueError, chr, 10000) |
| |
| self.raise_catch(ZeroDivisionError, "ZeroDivisionError") |
| try: x = 1 // 0 |
| except ZeroDivisionError: pass |
| |
| self.raise_catch(Exception, "Exception") |
| try: x = 1 // 0 |
| except Exception, e: pass |
| |
| def testSyntaxErrorMessage(self): |
| # make sure the right exception message is raised for each of |
| # these code fragments |
| |
| def ckmsg(src, msg): |
| try: |
| compile(src, '<fragment>', 'exec') |
| except SyntaxError, e: |
| if e.msg != msg: |
| self.fail("expected %s, got %s" % (msg, e.msg)) |
| else: |
| self.fail("failed to get expected SyntaxError") |
| |
| s = '''while 1: |
| try: |
| pass |
| finally: |
| continue''' |
| |
| if not sys.platform.startswith('java'): |
| ckmsg(s, "'continue' not supported inside 'finally' clause") |
| |
| s = '''if 1: |
| try: |
| continue |
| except: |
| pass''' |
| |
| ckmsg(s, "'continue' not properly in loop") |
| ckmsg("continue\n", "'continue' not properly in loop") |
| |
| @cpython_only |
| def testSettingException(self): |
| # test that setting an exception at the C level works even if the |
| # exception object can't be constructed. |
| |
| class BadException: |
| def __init__(self_): |
| raise RuntimeError, "can't instantiate BadException" |
| |
| def test_capi1(): |
| import _testcapi |
| try: |
| _testcapi.raise_exception(BadException, 1) |
| except TypeError, err: |
| exc, err, tb = sys.exc_info() |
| co = tb.tb_frame.f_code |
| self.assertEqual(co.co_name, "test_capi1") |
| self.assertTrue(co.co_filename.endswith('test_exceptions'+os.extsep+'py')) |
| else: |
| self.fail("Expected exception") |
| |
| def test_capi2(): |
| import _testcapi |
| try: |
| _testcapi.raise_exception(BadException, 0) |
| except RuntimeError, err: |
| exc, err, tb = sys.exc_info() |
| co = tb.tb_frame.f_code |
| self.assertEqual(co.co_name, "__init__") |
| self.assertTrue(co.co_filename.endswith('test_exceptions'+os.extsep+'py')) |
| co2 = tb.tb_frame.f_back.f_code |
| self.assertEqual(co2.co_name, "test_capi2") |
| else: |
| self.fail("Expected exception") |
| |
| if not sys.platform.startswith('java'): |
| test_capi1() |
| test_capi2() |
| |
| def test_WindowsError(self): |
| try: |
| WindowsError |
| except NameError: |
| pass |
| else: |
| self.assertEqual(str(WindowsError(1001)), |
| "1001") |
| self.assertEqual(str(WindowsError(1001, "message")), |
| "[Error 1001] message") |
| self.assertEqual(WindowsError(1001, "message").errno, 22) |
| self.assertEqual(WindowsError(1001, "message").winerror, 1001) |
| |
| @ignore_deprecation_warnings |
| def testAttributes(self): |
| # test that exception attributes are happy |
| |
| exceptionList = [ |
| (BaseException, (), {'message' : '', 'args' : ()}), |
| (BaseException, (1, ), {'message' : 1, 'args' : (1,)}), |
| (BaseException, ('foo',), |
| {'message' : 'foo', 'args' : ('foo',)}), |
| (BaseException, ('foo', 1), |
| {'message' : '', 'args' : ('foo', 1)}), |
| (SystemExit, ('foo',), |
| {'message' : 'foo', 'args' : ('foo',), 'code' : 'foo'}), |
| (IOError, ('foo',), |
| {'message' : 'foo', 'args' : ('foo',), 'filename' : None, |
| 'errno' : None, 'strerror' : None}), |
| (IOError, ('foo', 'bar'), |
| {'message' : '', 'args' : ('foo', 'bar'), 'filename' : None, |
| 'errno' : 'foo', 'strerror' : 'bar'}), |
| (IOError, ('foo', 'bar', 'baz'), |
| {'message' : '', 'args' : ('foo', 'bar'), 'filename' : 'baz', |
| 'errno' : 'foo', 'strerror' : 'bar'}), |
| (IOError, ('foo', 'bar', 'baz', 'quux'), |
| {'message' : '', 'args' : ('foo', 'bar', 'baz', 'quux')}), |
| (EnvironmentError, ('errnoStr', 'strErrorStr', 'filenameStr'), |
| {'message' : '', 'args' : ('errnoStr', 'strErrorStr'), |
| 'strerror' : 'strErrorStr', 'errno' : 'errnoStr', |
| 'filename' : 'filenameStr'}), |
| (EnvironmentError, (1, 'strErrorStr', 'filenameStr'), |
| {'message' : '', 'args' : (1, 'strErrorStr'), 'errno' : 1, |
| 'strerror' : 'strErrorStr', 'filename' : 'filenameStr'}), |
| (SyntaxError, (), {'message' : '', 'msg' : None, 'text' : None, |
| 'filename' : None, 'lineno' : None, 'offset' : None, |
| 'print_file_and_line' : None}), |
| (SyntaxError, ('msgStr',), |
| {'message' : 'msgStr', 'args' : ('msgStr',), 'text' : None, |
| 'print_file_and_line' : None, 'msg' : 'msgStr', |
| 'filename' : None, 'lineno' : None, 'offset' : None}), |
| (SyntaxError, ('msgStr', ('filenameStr', 'linenoStr', 'offsetStr', |
| 'textStr')), |
| {'message' : '', 'offset' : 'offsetStr', 'text' : 'textStr', |
| 'args' : ('msgStr', ('filenameStr', 'linenoStr', |
| 'offsetStr', 'textStr')), |
| 'print_file_and_line' : None, 'msg' : 'msgStr', |
| 'filename' : 'filenameStr', 'lineno' : 'linenoStr'}), |
| (SyntaxError, ('msgStr', 'filenameStr', 'linenoStr', 'offsetStr', |
| 'textStr', 'print_file_and_lineStr'), |
| {'message' : '', 'text' : None, |
| 'args' : ('msgStr', 'filenameStr', 'linenoStr', 'offsetStr', |
| 'textStr', 'print_file_and_lineStr'), |
| 'print_file_and_line' : None, 'msg' : 'msgStr', |
| 'filename' : None, 'lineno' : None, 'offset' : None}), |
| (UnicodeError, (), {'message' : '', 'args' : (),}), |
| (UnicodeEncodeError, ('ascii', u'a', 0, 1, 'ordinal not in range'), |
| {'message' : '', 'args' : ('ascii', u'a', 0, 1, |
| 'ordinal not in range'), |
| 'encoding' : 'ascii', 'object' : u'a', |
| 'start' : 0, 'reason' : 'ordinal not in range'}), |
| (UnicodeDecodeError, ('ascii', '\xff', 0, 1, 'ordinal not in range'), |
| {'message' : '', 'args' : ('ascii', '\xff', 0, 1, |
| 'ordinal not in range'), |
| 'encoding' : 'ascii', 'object' : '\xff', |
| 'start' : 0, 'reason' : 'ordinal not in range'}), |
| (UnicodeTranslateError, (u"\u3042", 0, 1, "ouch"), |
| {'message' : '', 'args' : (u'\u3042', 0, 1, 'ouch'), |
| 'object' : u'\u3042', 'reason' : 'ouch', |
| 'start' : 0, 'end' : 1}), |
| ] |
| try: |
| exceptionList.append( |
| (WindowsError, (1, 'strErrorStr', 'filenameStr'), |
| {'message' : '', 'args' : (1, 'strErrorStr'), |
| 'strerror' : 'strErrorStr', 'winerror' : 1, |
| 'errno' : 22, 'filename' : 'filenameStr'}) |
| ) |
| except NameError: |
| pass |
| |
| for exc, args, expected in exceptionList: |
| try: |
| raise exc(*args) |
| except BaseException, e: |
| if type(e) is not exc: |
| raise |
| # Verify module name |
| self.assertEqual(type(e).__module__, 'exceptions') |
| # Verify no ref leaks in Exc_str() |
| s = str(e) |
| for checkArgName in expected: |
| self.assertEqual(repr(getattr(e, checkArgName)), |
| repr(expected[checkArgName]), |
| 'exception "%s", attribute "%s"' % |
| (repr(e), checkArgName)) |
| |
| # test for pickling support |
| for p in pickle, cPickle: |
| for protocol in range(p.HIGHEST_PROTOCOL + 1): |
| new = p.loads(p.dumps(e, protocol)) |
| for checkArgName in expected: |
| got = repr(getattr(new, checkArgName)) |
| want = repr(expected[checkArgName]) |
| self.assertEqual(got, want, |
| 'pickled "%r", attribute "%s"' % |
| (e, checkArgName)) |
| |
| |
| def testDeprecatedMessageAttribute(self): |
| # Accessing BaseException.message and relying on its value set by |
| # BaseException.__init__ triggers a deprecation warning. |
| exc = BaseException("foo") |
| with check_warnings(("BaseException.message has been deprecated " |
| "as of Python 2.6", DeprecationWarning)) as w: |
| self.assertEqual(exc.message, "foo") |
| self.assertEqual(len(w.warnings), 1) |
| |
| def testRegularMessageAttribute(self): |
| # Accessing BaseException.message after explicitly setting a value |
| # for it does not trigger a deprecation warning. |
| exc = BaseException("foo") |
| exc.message = "bar" |
| with check_warnings(quiet=True) as w: |
| self.assertEqual(exc.message, "bar") |
| self.assertEqual(len(w.warnings), 0) |
| # Deleting the message is supported, too. |
| del exc.message |
| with self.assertRaises(AttributeError): |
| exc.message |
| |
| @ignore_deprecation_warnings |
| def testPickleMessageAttribute(self): |
| # Pickling with message attribute must work, as well. |
| e = Exception("foo") |
| f = Exception("foo") |
| f.message = "bar" |
| for p in pickle, cPickle: |
| ep = p.loads(p.dumps(e)) |
| self.assertEqual(ep.message, "foo") |
| fp = p.loads(p.dumps(f)) |
| self.assertEqual(fp.message, "bar") |
| |
| @ignore_deprecation_warnings |
| def testSlicing(self): |
| # Test that you can slice an exception directly instead of requiring |
| # going through the 'args' attribute. |
| args = (1, 2, 3) |
| exc = BaseException(*args) |
| self.assertEqual(exc[:], args) |
| self.assertEqual(exc.args[:], args) |
| |
| 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) |
| |
| def testInfiniteRecursion(self): |
| def f(): |
| return f() |
| self.assertRaises(RuntimeError, f) |
| |
| def g(): |
| try: |
| return g() |
| except ValueError: |
| return -1 |
| |
| # The test prints an unraisable recursion error when |
| # doing "except ValueError", this is because subclass |
| # checking has recursion checking too. |
| with captured_output("stderr"): |
| try: |
| g() |
| except RuntimeError: |
| pass |
| except: |
| self.fail("Should have raised KeyError") |
| else: |
| self.fail("Should have raised KeyError") |
| |
| def testUnicodeStrUsage(self): |
| # Make sure both instances and classes have a str and unicode |
| # representation. |
| self.assertTrue(str(Exception)) |
| self.assertTrue(unicode(Exception)) |
| self.assertTrue(str(Exception('a'))) |
| self.assertTrue(unicode(Exception(u'a'))) |
| self.assertTrue(unicode(Exception(u'\xe1'))) |
| |
| def testUnicodeChangeAttributes(self): |
| # See issue 7309. This was a crasher. |
| |
| u = UnicodeEncodeError('baz', u'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 u'\\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', '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(u'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 u'\\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_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_output("stderr") as stderr: |
| try: |
| raise KeyError() |
| except MyException, 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") |
| |
| with captured_output("stderr") as stderr: |
| def g(): |
| try: |
| return g() |
| except RuntimeError: |
| return sys.exc_info() |
| e, v, tb = g() |
| self.assertTrue(e is RuntimeError, e) |
| self.assertIn("maximum recursion depth exceeded", str(v)) |
| |
| def test_new_returns_invalid_instance(self): |
| # See issue #11627. |
| class MyException(Exception): |
| def __new__(cls, *args): |
| return object() |
| |
| with self.assertRaises(TypeError): |
| raise MyException |
| |
| def test_assert_with_tuple_arg(self): |
| try: |
| assert False, (3,) |
| except AssertionError as e: |
| self.assertEqual(str(e), "(3,)") |
| |
| def test_bad_exception_clearing(self): |
| # See issue 16445: use of Py_XDECREF instead of Py_CLEAR in |
| # BaseException_set_message gave a possible way to segfault the |
| # interpreter. |
| class Nasty(str): |
| def __del__(message): |
| del e.message |
| |
| e = ValueError(Nasty("msg")) |
| e.args = () |
| del e.message |
| |
| |
| # Helper class used by TestSameStrAndUnicodeMsg |
| class ExcWithOverriddenStr(Exception): |
| """Subclass of Exception that accepts a keyword 'msg' arg that is |
| returned by __str__. 'msg' won't be included in self.args""" |
| def __init__(self, *args, **kwargs): |
| self.msg = kwargs.pop('msg') # msg should always be present |
| super(ExcWithOverriddenStr, self).__init__(*args, **kwargs) |
| def __str__(self): |
| return self.msg |
| |
| |
| class TestSameStrAndUnicodeMsg(unittest.TestCase): |
| """unicode(err) should return the same message of str(err). See #6108""" |
| |
| def check_same_msg(self, exc, msg): |
| """Helper function that checks if str(exc) == unicode(exc) == msg""" |
| self.assertEqual(str(exc), msg) |
| self.assertEqual(str(exc), unicode(exc)) |
| |
| def test_builtin_exceptions(self): |
| """Check same msg for built-in exceptions""" |
| # These exceptions implement a __str__ method that uses the args |
| # to create a better error message. unicode(e) should return the same |
| # message. |
| exceptions = [ |
| SyntaxError('invalid syntax', ('<string>', 1, 3, '2+*3')), |
| IOError(2, 'No such file or directory'), |
| KeyError('both should have the same quotes'), |
| UnicodeDecodeError('ascii', '\xc3\xa0', 0, 1, |
| 'ordinal not in range(128)'), |
| UnicodeEncodeError('ascii', u'\u1234', 0, 1, |
| 'ordinal not in range(128)') |
| ] |
| for exception in exceptions: |
| self.assertEqual(str(exception), unicode(exception)) |
| |
| def test_0_args(self): |
| """Check same msg for Exception with 0 args""" |
| # str() and unicode() on an Exception with no args should return an |
| # empty string |
| self.check_same_msg(Exception(), '') |
| |
| def test_0_args_with_overridden___str__(self): |
| """Check same msg for exceptions with 0 args and overridden __str__""" |
| # str() and unicode() on an exception with overridden __str__ that |
| # returns an ascii-only string should return the same string |
| for msg in ('foo', u'foo'): |
| self.check_same_msg(ExcWithOverriddenStr(msg=msg), msg) |
| |
| # if __str__ returns a non-ascii unicode string str() should fail |
| # but unicode() should return the unicode string |
| e = ExcWithOverriddenStr(msg=u'f\xf6\xf6') # no args |
| self.assertRaises(UnicodeEncodeError, str, e) |
| self.assertEqual(unicode(e), u'f\xf6\xf6') |
| |
| def test_1_arg(self): |
| """Check same msg for Exceptions with 1 arg""" |
| for arg in ('foo', u'foo'): |
| self.check_same_msg(Exception(arg), arg) |
| |
| # if __str__ is not overridden and self.args[0] is a non-ascii unicode |
| # string, str() should try to return str(self.args[0]) and fail. |
| # unicode() should return unicode(self.args[0]) and succeed. |
| e = Exception(u'f\xf6\xf6') |
| self.assertRaises(UnicodeEncodeError, str, e) |
| self.assertEqual(unicode(e), u'f\xf6\xf6') |
| |
| def test_1_arg_with_overridden___str__(self): |
| """Check same msg for exceptions with overridden __str__ and 1 arg""" |
| # when __str__ is overridden and __unicode__ is not implemented |
| # unicode(e) returns the same as unicode(e.__str__()). |
| for msg in ('foo', u'foo'): |
| self.check_same_msg(ExcWithOverriddenStr('arg', msg=msg), msg) |
| |
| # if __str__ returns a non-ascii unicode string, str() should fail |
| # but unicode() should succeed. |
| e = ExcWithOverriddenStr('arg', msg=u'f\xf6\xf6') # 1 arg |
| self.assertRaises(UnicodeEncodeError, str, e) |
| self.assertEqual(unicode(e), u'f\xf6\xf6') |
| |
| def test_many_args(self): |
| """Check same msg for Exceptions with many args""" |
| argslist = [ |
| (3, 'foo'), |
| (1, u'foo', 'bar'), |
| (4, u'f\xf6\xf6', u'bar', 'baz') |
| ] |
| # both str() and unicode() should return a repr() of the args |
| for args in argslist: |
| self.check_same_msg(Exception(*args), repr(args)) |
| |
| def test_many_args_with_overridden___str__(self): |
| """Check same msg for exceptions with overridden __str__ and many args""" |
| # if __str__ returns an ascii string / ascii unicode string |
| # both str() and unicode() should succeed |
| for msg in ('foo', u'foo'): |
| e = ExcWithOverriddenStr('arg1', u'arg2', u'f\xf6\xf6', msg=msg) |
| self.check_same_msg(e, msg) |
| |
| # if __str__ returns a non-ascii unicode string, str() should fail |
| # but unicode() should succeed |
| e = ExcWithOverriddenStr('arg1', u'f\xf6\xf6', u'arg3', # 3 args |
| msg=u'f\xf6\xf6') |
| self.assertRaises(UnicodeEncodeError, str, e) |
| self.assertEqual(unicode(e), u'f\xf6\xf6') |
| |
| @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__, "") |
| |
| |
| def test_main(): |
| run_unittest(ExceptionTests, TestSameStrAndUnicodeMsg) |
| |
| if __name__ == '__main__': |
| test_main() |
