--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_exceptions.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,397 @@
+# Python test set -- part 5, built-in exceptions
+
+import os
+import sys
+import unittest
+import pickle, cPickle
+import warnings
+
+from test.test_support import TESTFN, unlink, run_unittest, captured_output
+from test.test_pep352 import ignore_message_warning
+
+# 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:
+ 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.assertEquals(buf1, buf2)
+ self.assertEquals(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")
+
+ 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.assertEquals(co.co_name, "test_capi1")
+ self.assert_(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.assertEquals(co.co_name, "__init__")
+ self.assert_(co.co_filename.endswith('test_exceptions'+os.extsep+'py'))
+ co2 = tb.tb_frame.f_back.f_code
+ self.assertEquals(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.failUnlessEqual(str(WindowsError(1001)),
+ "1001")
+ self.failUnlessEqual(str(WindowsError(1001, "message")),
+ "[Error 1001] message")
+ self.failUnlessEqual(WindowsError(1001, "message").errno, 22)
+ self.failUnlessEqual(WindowsError(1001, "message").winerror, 1001)
+
+ 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
+
+ with warnings.catch_warnings():
+ ignore_message_warning()
+ for exc, args, expected in exceptionList:
+ try:
+ raise exc(*args)
+ except BaseException, e:
+ if type(e) is not exc:
+ raise
+ # Verify module name
+ self.assertEquals(type(e).__module__, 'exceptions')
+ # Verify no ref leaks in Exc_str()
+ s = str(e)
+ for checkArgName in expected:
+ self.assertEquals(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.assertEquals(got, want,
+ 'pickled "%r", attribute "%s"' %
+ (e, checkArgName))
+
+ 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.failUnlessEqual(exc[:], 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.assertEquals(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.failUnless(str(Exception))
+ self.failUnless(unicode(Exception))
+ self.failUnless(str(Exception('a')))
+ self.failUnless(unicode(Exception(u'a')))
+ self.failUnless(unicode(Exception(u'\xe1')))
+
+ 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.assert_(e is RuntimeError, e)
+ self.assert_("maximum recursion depth exceeded" in str(v), v)
+
+
+def test_main():
+ run_unittest(ExceptionTests)
+
+if __name__ == '__main__':
+ test_main()