diff options
Diffstat (limited to 'lib/python2.7/test/test_py3kwarn.py')
| -rw-r--r-- | lib/python2.7/test/test_py3kwarn.py | 426 |
1 files changed, 0 insertions, 426 deletions
diff --git a/lib/python2.7/test/test_py3kwarn.py b/lib/python2.7/test/test_py3kwarn.py deleted file mode 100644 index 2afd8a1..0000000 --- a/lib/python2.7/test/test_py3kwarn.py +++ /dev/null @@ -1,426 +0,0 @@ -import unittest -import sys -from test.test_support import check_py3k_warnings, CleanImport, run_unittest -import warnings - -if not sys.py3kwarning: - raise unittest.SkipTest('%s must be run with the -3 flag' % __name__) - -try: - from test.test_support import __warningregistry__ as _registry -except ImportError: - def check_deprecated_module(module_name): - return False -else: - past_warnings = _registry.keys() - del _registry - def check_deprecated_module(module_name): - """Lookup the past warnings for module already loaded using - test_support.import_module(..., deprecated=True) - """ - return any(module_name in msg and ' removed' in msg - and issubclass(cls, DeprecationWarning) - and (' module' in msg or ' package' in msg) - for (msg, cls, line) in past_warnings) - -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 assertNoWarning(self, _, recorder): - self.assertEqual(len(recorder.warnings), 0) - - def test_backquote(self): - expected = 'backquote not supported in 3.x; use repr()' - with check_py3k_warnings((expected, SyntaxWarning)): - exec "`2`" in {} - - def test_paren_arg_names(self): - expected = 'parenthesized argument names are invalid in 3.x' - def check(s): - with check_py3k_warnings((expected, SyntaxWarning)): - exec s in {} - check("def f((x)): pass") - check("def f((((x))), (y)): pass") - check("def f((x), (((y))), m=32): pass") - # Something like def f((a, (b))): pass will raise the tuple - # unpacking warning. - - def test_forbidden_names(self): - # So we don't screw up our globals - def safe_exec(expr): - def f(**kwargs): pass - exec expr in {'f' : f} - - tests = [("True", "assignment to True or False is forbidden in 3.x"), - ("False", "assignment to True or False is forbidden in 3.x"), - ("nonlocal", "nonlocal is a keyword in 3.x")] - with check_py3k_warnings(('', SyntaxWarning)) as w: - for keyword, expected in tests: - safe_exec("{0} = False".format(keyword)) - self.assertWarning(None, w, expected) - w.reset() - try: - safe_exec("obj.{0} = True".format(keyword)) - except NameError: - pass - self.assertWarning(None, w, expected) - w.reset() - safe_exec("def {0}(): pass".format(keyword)) - self.assertWarning(None, w, expected) - w.reset() - safe_exec("class {0}: pass".format(keyword)) - self.assertWarning(None, w, expected) - w.reset() - safe_exec("def f({0}=43): pass".format(keyword)) - self.assertWarning(None, w, expected) - w.reset() - - - def test_type_inequality_comparisons(self): - expected = 'type inequality comparisons not supported in 3.x' - with check_py3k_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_py3k_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_py3k_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_py3k_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_py3k_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 ' - 'order comparisons not supported in 3.x') - func = eval - meth = {}.get - with check_py3k_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) - w.reset() - self.assertNoWarning(meth == func, w) - self.assertNoWarning(meth != func, w) - lam = lambda x: x - self.assertNoWarning(lam == func, w) - self.assertNoWarning(lam != func, w) - - def test_frame_attributes(self): - template = "%s has been removed in 3.x" - f = sys._getframe(0) - for attr in ("f_exc_traceback", "f_exc_value", "f_exc_type"): - expected = template % attr - with check_py3k_warnings() as w: - self.assertWarning(getattr(f, attr), w, expected) - w.reset() - self.assertWarning(setattr(f, attr, None), 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_py3k_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_py3k_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_py3k_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_py3k_warnings() as w: - self.assertWarning(f.softspace, w, expected) - def set(): - f.softspace = 0 - with check_py3k_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_py3k_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_py3k_warnings((expected, SyntaxWarning)): - exec "def f((a, b)): pass" - - def test_buffer(self): - expected = 'buffer() not supported in 3.x' - with check_py3k_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_py3k_warnings() as w: - self.assertWarning(f.xreadlines(), w, expected) - - def test_hash_inheritance(self): - with check_py3k_warnings() as w: - # With object as the base class - class WarnOnlyCmp(object): - def __cmp__(self, other): pass - self.assertEqual(len(w.warnings), 0) - 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), 1) - 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), 0) - 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), 1) - 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) - - def test_operator(self): - from operator import isCallable, sequenceIncludes - - callable_warn = ("operator.isCallable() is not supported in 3.x. " - "Use hasattr(obj, '__call__').") - seq_warn = ("operator.sequenceIncludes() is not supported " - "in 3.x. Use operator.contains().") - with check_py3k_warnings() as w: - self.assertWarning(isCallable(self), w, callable_warn) - w.reset() - self.assertWarning(sequenceIncludes(range(3), 2), w, seq_warn) - - -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 should (and does) give a Py3kWarning, but one of the - # earlier tests already imports the MacOS extension which causes - # this test to fail. Disabling the test for 'MacOS' avoids this - # spurious test failure. - #'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', '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 CleanImport(module_name), warnings.catch_warnings(): - warnings.filterwarnings("error", ".+ (module|package) .+ removed", - DeprecationWarning, __name__) - warnings.filterwarnings("error", ".+ removed .+ (module|package)", - DeprecationWarning, __name__) - try: - __import__(module_name, level=0) - except DeprecationWarning as exc: - self.assertIn(module_name, 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: - # For extension modules, check the __warningregistry__. - # They won't rerun their init code even with CleanImport. - if not check_deprecated_module(module_name): - 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_py3k_warnings() as w: - mod.walk("crashers", dumbo, None) - self.assertEqual(str(w.message), msg) - - def test_reduce_move(self): - from operator import add - # reduce tests may have already triggered this warning - reset_module_registry(unittest.case) - 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(): - run_unittest(TestPy3KWarnings, - TestStdlibRemovals) - -if __name__ == '__main__': - test_main() |