--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_py3kwarn.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,403 @@
+import unittest
+import sys
+from test.test_support import (check_warnings, CleanImport,
+ TestSkipped, run_unittest)
+import warnings
+
+from contextlib import nested
+
+if not sys.py3kwarning:
+ raise TestSkipped('%s must be run with the -3 flag' % __name__)
+
+def reset_module_registry(module):
+ try:
+ registry = module.__warningregistry__
+ except AttributeError:
+ pass
+ else:
+ registry.clear()
+
+class TestPy3KWarnings(unittest.TestCase):
+
+ def assertWarning(self, _, warning, expected_message):
+ self.assertEqual(str(warning.message), expected_message)
+
+ def test_backquote(self):
+ expected = 'backquote not supported in 3.x; use repr()'
+ with check_warnings() as w:
+ exec "`2`" in {}
+ self.assertWarning(None, w, expected)
+
+ def test_bool_assign(self):
+ # So we don't screw up our globals
+ def safe_exec(expr):
+ def f(**kwargs): pass
+ exec expr in {'f' : f}
+
+ expected = "assignment to True or False is forbidden in 3.x"
+ with check_warnings() as w:
+ safe_exec("True = False")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("False = True")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ try:
+ safe_exec("obj.False = True")
+ except NameError: pass
+ self.assertWarning(None, w, expected)
+ w.reset()
+ try:
+ safe_exec("obj.True = False")
+ except NameError: pass
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("def False(): pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("def True(): pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("class False: pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("class True: pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("def f(True=43): pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("def f(False=None): pass")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("f(False=True)")
+ self.assertWarning(None, w, expected)
+ w.reset()
+ safe_exec("f(True=1)")
+ self.assertWarning(None, w, expected)
+
+
+ def test_type_inequality_comparisons(self):
+ expected = 'type inequality comparisons not supported in 3.x'
+ with check_warnings() as w:
+ self.assertWarning(int < str, w, expected)
+ w.reset()
+ self.assertWarning(type < object, w, expected)
+
+ def test_object_inequality_comparisons(self):
+ expected = 'comparing unequal types not supported in 3.x'
+ with check_warnings() as w:
+ self.assertWarning(str < [], w, expected)
+ w.reset()
+ self.assertWarning(object() < (1, 2), w, expected)
+
+ def test_dict_inequality_comparisons(self):
+ expected = 'dict inequality comparisons not supported in 3.x'
+ with check_warnings() as w:
+ self.assertWarning({} < {2:3}, w, expected)
+ w.reset()
+ self.assertWarning({} <= {}, w, expected)
+ w.reset()
+ self.assertWarning({} > {2:3}, w, expected)
+ w.reset()
+ self.assertWarning({2:3} >= {}, w, expected)
+
+ def test_cell_inequality_comparisons(self):
+ expected = 'cell comparisons not supported in 3.x'
+ def f(x):
+ def g():
+ return x
+ return g
+ cell0, = f(0).func_closure
+ cell1, = f(1).func_closure
+ with check_warnings() as w:
+ self.assertWarning(cell0 == cell1, w, expected)
+ w.reset()
+ self.assertWarning(cell0 < cell1, w, expected)
+
+ def test_code_inequality_comparisons(self):
+ expected = 'code inequality comparisons not supported in 3.x'
+ def f(x):
+ pass
+ def g(x):
+ pass
+ with check_warnings() as w:
+ self.assertWarning(f.func_code < g.func_code, w, expected)
+ w.reset()
+ self.assertWarning(f.func_code <= g.func_code, w, expected)
+ w.reset()
+ self.assertWarning(f.func_code >= g.func_code, w, expected)
+ w.reset()
+ self.assertWarning(f.func_code > g.func_code, w, expected)
+
+ def test_builtin_function_or_method_comparisons(self):
+ expected = ('builtin_function_or_method '
+ 'inequality comparisons not supported in 3.x')
+ func = eval
+ meth = {}.get
+ with check_warnings() as w:
+ self.assertWarning(func < meth, w, expected)
+ w.reset()
+ self.assertWarning(func > meth, w, expected)
+ w.reset()
+ self.assertWarning(meth <= func, w, expected)
+ w.reset()
+ self.assertWarning(meth >= func, w, expected)
+
+ def test_sort_cmp_arg(self):
+ expected = "the cmp argument is not supported in 3.x"
+ lst = range(5)
+ cmp = lambda x,y: -1
+
+ with check_warnings() as w:
+ self.assertWarning(lst.sort(cmp=cmp), w, expected)
+ w.reset()
+ self.assertWarning(sorted(lst, cmp=cmp), w, expected)
+ w.reset()
+ self.assertWarning(lst.sort(cmp), w, expected)
+ w.reset()
+ self.assertWarning(sorted(lst, cmp), w, expected)
+
+ def test_sys_exc_clear(self):
+ expected = 'sys.exc_clear() not supported in 3.x; use except clauses'
+ with check_warnings() as w:
+ self.assertWarning(sys.exc_clear(), w, expected)
+
+ def test_methods_members(self):
+ expected = '__members__ and __methods__ not supported in 3.x'
+ class C:
+ __methods__ = ['a']
+ __members__ = ['b']
+ c = C()
+ with check_warnings() as w:
+ self.assertWarning(dir(c), w, expected)
+
+ def test_softspace(self):
+ expected = 'file.softspace not supported in 3.x'
+ with file(__file__) as f:
+ with check_warnings() as w:
+ self.assertWarning(f.softspace, w, expected)
+ def set():
+ f.softspace = 0
+ with check_warnings() as w:
+ self.assertWarning(set(), w, expected)
+
+ def test_slice_methods(self):
+ class Spam(object):
+ def __getslice__(self, i, j): pass
+ def __setslice__(self, i, j, what): pass
+ def __delslice__(self, i, j): pass
+ class Egg:
+ def __getslice__(self, i, h): pass
+ def __setslice__(self, i, j, what): pass
+ def __delslice__(self, i, j): pass
+
+ expected = "in 3.x, __{0}slice__ has been removed; use __{0}item__"
+
+ for obj in (Spam(), Egg()):
+ with check_warnings() as w:
+ self.assertWarning(obj[1:2], w, expected.format('get'))
+ w.reset()
+ del obj[3:4]
+ self.assertWarning(None, w, expected.format('del'))
+ w.reset()
+ obj[4:5] = "eggs"
+ self.assertWarning(None, w, expected.format('set'))
+
+ def test_tuple_parameter_unpacking(self):
+ expected = "tuple parameter unpacking has been removed in 3.x"
+ with check_warnings() as w:
+ exec "def f((a, b)): pass"
+ self.assertWarning(None, w, expected)
+
+ def test_buffer(self):
+ expected = 'buffer() not supported in 3.x'
+ with check_warnings() as w:
+ self.assertWarning(buffer('a'), w, expected)
+
+ def test_file_xreadlines(self):
+ expected = ("f.xreadlines() not supported in 3.x, "
+ "try 'for line in f' instead")
+ with file(__file__) as f:
+ with check_warnings() as w:
+ self.assertWarning(f.xreadlines(), w, expected)
+
+ def test_hash_inheritance(self):
+ with check_warnings() as w:
+ # With object as the base class
+ class WarnOnlyCmp(object):
+ def __cmp__(self, other): pass
+ self.assertEqual(len(w.warnings), 1)
+ self.assertWarning(None, w,
+ "Overriding __cmp__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class WarnOnlyEq(object):
+ def __eq__(self, other): pass
+ self.assertEqual(len(w.warnings), 1)
+ self.assertWarning(None, w,
+ "Overriding __eq__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class WarnCmpAndEq(object):
+ def __cmp__(self, other): pass
+ def __eq__(self, other): pass
+ self.assertEqual(len(w.warnings), 2)
+ self.assertWarning(None, w.warnings[0],
+ "Overriding __cmp__ blocks inheritance of __hash__ in 3.x")
+ self.assertWarning(None, w,
+ "Overriding __eq__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class NoWarningOnlyHash(object):
+ def __hash__(self): pass
+ self.assertEqual(len(w.warnings), 0)
+ # With an intermediate class in the heirarchy
+ class DefinesAllThree(object):
+ def __cmp__(self, other): pass
+ def __eq__(self, other): pass
+ def __hash__(self): pass
+ class WarnOnlyCmp(DefinesAllThree):
+ def __cmp__(self, other): pass
+ self.assertEqual(len(w.warnings), 1)
+ self.assertWarning(None, w,
+ "Overriding __cmp__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class WarnOnlyEq(DefinesAllThree):
+ def __eq__(self, other): pass
+ self.assertEqual(len(w.warnings), 1)
+ self.assertWarning(None, w,
+ "Overriding __eq__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class WarnCmpAndEq(DefinesAllThree):
+ def __cmp__(self, other): pass
+ def __eq__(self, other): pass
+ self.assertEqual(len(w.warnings), 2)
+ self.assertWarning(None, w.warnings[0],
+ "Overriding __cmp__ blocks inheritance of __hash__ in 3.x")
+ self.assertWarning(None, w,
+ "Overriding __eq__ blocks inheritance of __hash__ in 3.x")
+ w.reset()
+ class NoWarningOnlyHash(DefinesAllThree):
+ def __hash__(self): pass
+ self.assertEqual(len(w.warnings), 0)
+
+
+class TestStdlibRemovals(unittest.TestCase):
+
+ # test.testall not tested as it executes all unit tests as an
+ # import side-effect.
+ all_platforms = ('audiodev', 'imputil', 'mutex', 'user', 'new', 'rexec',
+ 'Bastion', 'compiler', 'dircache', 'mimetools',
+ 'fpformat', 'ihooks', 'mhlib', 'statvfs', 'htmllib',
+ 'sgmllib', 'rfc822', 'sunaudio')
+ inclusive_platforms = {'irix' : ('pure', 'AL', 'al', 'CD', 'cd', 'cddb',
+ 'cdplayer', 'CL', 'cl', 'DEVICE', 'GL',
+ 'gl', 'ERRNO', 'FILE', 'FL', 'flp', 'fl',
+ 'fm', 'GET', 'GLWS', 'imgfile', 'IN',
+ 'IOCTL', 'jpeg', 'panel', 'panelparser',
+ 'readcd', 'SV', 'torgb', 'WAIT'),
+ 'darwin' : ('autoGIL', 'Carbon', 'OSATerminology',
+ 'icglue', 'Nav', 'MacOS', 'aepack',
+ 'aetools', 'aetypes', 'applesingle',
+ 'appletrawmain', 'appletrunner',
+ 'argvemulator', 'bgenlocations',
+ 'EasyDialogs', 'macerrors', 'macostools',
+ 'findertools', 'FrameWork', 'ic',
+ 'gensuitemodule', 'icopen', 'macresource',
+ 'MiniAEFrame', 'pimp', 'PixMapWrapper',
+ 'terminalcommand', 'videoreader',
+ '_builtinSuites', 'CodeWarrior',
+ 'Explorer', 'Finder', 'Netscape',
+ 'StdSuites', 'SystemEvents', 'Terminal',
+ 'cfmfile', 'bundlebuilder', 'buildtools',
+ 'ColorPicker', 'Audio_mac'),
+ 'sunos5' : ('sunaudiodev', 'SUNAUDIODEV'),
+ }
+ optional_modules = ('bsddb185', 'Canvas', 'dl', 'linuxaudiodev', 'imageop',
+ 'sv', 'cPickle', 'bsddb', 'dbhash')
+
+ def check_removal(self, module_name, optional=False):
+ """Make sure the specified module, when imported, raises a
+ DeprecationWarning and specifies itself in the message."""
+ with nested(CleanImport(module_name), warnings.catch_warnings()):
+ # XXX: This is not quite enough for extension modules - those
+ # won't rerun their init code even with CleanImport.
+ # You can see this easily by running the whole test suite with -3
+ warnings.filterwarnings("error", ".+ removed",
+ DeprecationWarning, __name__)
+ try:
+ __import__(module_name, level=0)
+ except DeprecationWarning as exc:
+ self.assert_(module_name in exc.args[0],
+ "%s warning didn't contain module name"
+ % module_name)
+ except ImportError:
+ if not optional:
+ self.fail("Non-optional module {0} raised an "
+ "ImportError.".format(module_name))
+ else:
+ self.fail("DeprecationWarning not raised for {0}"
+ .format(module_name))
+
+ def test_platform_independent_removals(self):
+ # Make sure that the modules that are available on all platforms raise
+ # the proper DeprecationWarning.
+ for module_name in self.all_platforms:
+ self.check_removal(module_name)
+
+ def test_platform_specific_removals(self):
+ # Test the removal of platform-specific modules.
+ for module_name in self.inclusive_platforms.get(sys.platform, []):
+ self.check_removal(module_name, optional=True)
+
+ def test_optional_module_removals(self):
+ # Test the removal of modules that may or may not be built.
+ for module_name in self.optional_modules:
+ self.check_removal(module_name, optional=True)
+
+ def test_os_path_walk(self):
+ msg = "In 3.x, os.path.walk is removed in favor of os.walk."
+ def dumbo(where, names, args): pass
+ for path_mod in ("ntpath", "macpath", "os2emxpath", "posixpath"):
+ mod = __import__(path_mod)
+ reset_module_registry(mod)
+ with check_warnings() as w:
+ mod.walk("crashers", dumbo, None)
+ self.assertEquals(str(w.message), msg)
+
+ def test_commands_members(self):
+ import commands
+ # commands module tests may have already triggered this warning
+ reset_module_registry(commands)
+ members = {"mk2arg" : 2, "mkarg" : 1, "getstatus" : 1}
+ for name, arg_count in members.items():
+ with warnings.catch_warnings():
+ warnings.filterwarnings("error")
+ func = getattr(commands, name)
+ self.assertRaises(DeprecationWarning, func, *([None]*arg_count))
+
+ def test_reduce_move(self):
+ from operator import add
+ # reduce tests may have already triggered this warning
+ reset_module_registry(unittest)
+ with warnings.catch_warnings():
+ warnings.filterwarnings("error", "reduce")
+ self.assertRaises(DeprecationWarning, reduce, add, range(10))
+
+ def test_mutablestring_removal(self):
+ # UserString.MutableString has been removed in 3.0.
+ import UserString
+ # UserString tests may have already triggered this warning
+ reset_module_registry(UserString)
+ with warnings.catch_warnings():
+ warnings.filterwarnings("error", ".*MutableString",
+ DeprecationWarning)
+ self.assertRaises(DeprecationWarning, UserString.MutableString)
+
+
+def test_main():
+ with check_warnings():
+ warnings.simplefilter("always")
+ run_unittest(TestPy3KWarnings,
+ TestStdlibRemovals)
+
+if __name__ == '__main__':
+ test_main()