mirror of
https://github.com/python/cpython.git
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8940ecd39d
Modified TestStdlibRenames to support platform specific renames. Added test for PixMapWrapper rename warning. Added note to documentation about PixMapWrapper rename.
238 lines
9.4 KiB
Python
238 lines
9.4 KiB
Python
import unittest
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import sys
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from test.test_support import (catch_warning, CleanImport,
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TestSkipped, run_unittest)
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import warnings
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if not sys.py3kwarning:
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raise TestSkipped('%s must be run with the -3 flag' % __name__)
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class TestPy3KWarnings(unittest.TestCase):
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def test_type_inequality_comparisons(self):
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expected = 'type inequality comparisons not supported in 3.x'
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with catch_warning() as w:
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self.assertWarning(int < str, w, expected)
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with catch_warning() as w:
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self.assertWarning(type < object, w, expected)
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def test_object_inequality_comparisons(self):
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expected = 'comparing unequal types not supported in 3.x'
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with catch_warning() as w:
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self.assertWarning(str < [], w, expected)
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with catch_warning() as w:
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self.assertWarning(object() < (1, 2), w, expected)
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def test_dict_inequality_comparisons(self):
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expected = 'dict inequality comparisons not supported in 3.x'
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with catch_warning() as w:
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self.assertWarning({} < {2:3}, w, expected)
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with catch_warning() as w:
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self.assertWarning({} <= {}, w, expected)
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with catch_warning() as w:
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self.assertWarning({} > {2:3}, w, expected)
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with catch_warning() as w:
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self.assertWarning({2:3} >= {}, w, expected)
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def test_cell_inequality_comparisons(self):
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expected = 'cell comparisons not supported in 3.x'
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def f(x):
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def g():
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return x
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return g
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cell0, = f(0).func_closure
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cell1, = f(1).func_closure
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with catch_warning() as w:
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self.assertWarning(cell0 == cell1, w, expected)
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with catch_warning() as w:
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self.assertWarning(cell0 < cell1, w, expected)
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def test_code_inequality_comparisons(self):
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expected = 'code inequality comparisons not supported in 3.x'
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def f(x):
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pass
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def g(x):
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pass
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with catch_warning() as w:
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self.assertWarning(f.func_code < g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code <= g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code >= g.func_code, w, expected)
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with catch_warning() as w:
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self.assertWarning(f.func_code > g.func_code, w, expected)
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def test_builtin_function_or_method_comparisons(self):
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expected = ('builtin_function_or_method '
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'inequality comparisons not supported in 3.x')
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func = eval
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meth = {}.get
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with catch_warning() as w:
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self.assertWarning(func < meth, w, expected)
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with catch_warning() as w:
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self.assertWarning(func > meth, w, expected)
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with catch_warning() as w:
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self.assertWarning(meth <= func, w, expected)
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with catch_warning() as w:
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self.assertWarning(meth >= func, w, expected)
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def assertWarning(self, _, warning, expected_message):
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self.assertEqual(str(warning.message), expected_message)
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def test_sort_cmp_arg(self):
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expected = "the cmp argument is not supported in 3.x"
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lst = range(5)
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cmp = lambda x,y: -1
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with catch_warning() as w:
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self.assertWarning(lst.sort(cmp=cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(sorted(lst, cmp=cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(lst.sort(cmp), w, expected)
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with catch_warning() as w:
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self.assertWarning(sorted(lst, cmp), w, expected)
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def test_sys_exc_clear(self):
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expected = 'sys.exc_clear() not supported in 3.x; use except clauses'
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with catch_warning() as w:
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self.assertWarning(sys.exc_clear(), w, expected)
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def test_methods_members(self):
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expected = '__members__ and __methods__ not supported in 3.x'
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class C:
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__methods__ = ['a']
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__members__ = ['b']
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c = C()
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with catch_warning() as w:
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self.assertWarning(dir(c), w, expected)
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def test_softspace(self):
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expected = 'file.softspace not supported in 3.x'
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with file(__file__) as f:
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with catch_warning() as w:
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self.assertWarning(f.softspace, w, expected)
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def set():
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f.softspace = 0
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with catch_warning() as w:
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self.assertWarning(set(), w, expected)
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def test_buffer(self):
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expected = 'buffer() not supported in 3.x; use memoryview()'
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with catch_warning() as w:
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self.assertWarning(buffer('a'), w, expected)
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class TestStdlibRemovals(unittest.TestCase):
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# test.testall not tested as it executes all unit tests as an
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# import side-effect.
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all_platforms = ('audiodev', 'imputil', 'mutex', 'user', 'new', 'rexec',
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'Bastion', 'compiler', 'dircache', 'fpformat',
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'ihooks', 'mhlib')
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inclusive_platforms = {'irix':('pure',)}
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# XXX Don't know if lib-tk is only installed if _tkinter is built.
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optional_modules = ('bsddb185', 'Canvas', 'dl', 'linuxaudiodev')
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def check_removal(self, module_name, optional=False):
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"""Make sure the specified module, when imported, raises a
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DeprecationWarning and specifies itself in the message."""
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with CleanImport(module_name):
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with catch_warning(record=False) as w:
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warnings.filterwarnings("error", ".+ removed",
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DeprecationWarning)
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try:
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__import__(module_name, level=0)
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except DeprecationWarning as exc:
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self.assert_(module_name in exc.args[0])
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except ImportError:
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if not optional:
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raise
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else:
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self.fail("DeprecationWarning not raised for %s" %
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module_name)
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def test_platform_independent_removals(self):
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# Make sure that the modules that are available on all platforms raise
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# the proper DeprecationWarning.
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for module_name in self.all_platforms:
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self.check_removal(module_name)
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def test_platform_specific_removals(self):
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# Test the removal of platform-specific modules.
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for module_name in self.inclusive_platforms.get(sys.platform, []):
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self.check_removal(module_name, optional=True)
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def test_optional_module_removals(self):
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# Test the removal of modules that may or may not be built.
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for module_name in self.optional_modules:
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self.check_removal(module_name, optional=True)
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def test_os_path_walk(self):
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msg = "In 3.x, os.path.walk is removed in favor of os.walk."
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def dumbo(where, names, args): pass
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for path_mod in ("ntpath", "macpath", "os2emxpath", "posixpath"):
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mod = __import__(path_mod)
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with catch_warning() as w:
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# Since os3exmpath just imports it from ntpath
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warnings.simplefilter("always")
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mod.walk(".", dumbo, None)
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self.assertEquals(str(w.message), msg)
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class TestStdlibRenames(unittest.TestCase):
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all_platforms = {'copy_reg': 'copyreg', 'Queue': 'queue'}
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inclusive_platforms = {'mac': {'PixMapWrapper': 'pixmapwrapper'}}
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def check_rename(self, module_name, new_module_name, optional=False):
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"""Make sure that:
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- A DeprecationWarning is raised when importing using the
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old 2.x module name.
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- The module can be imported using the new 3.x name.
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- The warning message specify both names.
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"""
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with CleanImport(module_name):
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with catch_warning(record=False) as w:
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warnings.filterwarnings("error", ".+ renamed to",
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DeprecationWarning)
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try:
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__import__(module_name, level=0)
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except DeprecationWarning as exc:
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self.assert_(module_name in exc.args[0])
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self.assert_(new_module_name in exc.args[0])
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except ImportError:
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if not optional:
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raise
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else:
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self.fail("DeprecationWarning not raised for %s" %
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module_name)
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with CleanImport(new_module_name):
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try:
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__import__(new_module_name, level=0)
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except DeprecationWarning:
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self.fail("unexpected DeprecationWarning raised for %s" %
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module_name)
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except ImportError:
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if not optional:
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self.fail("cannot import %s with its 3.x name, %s" %
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module_name, new_module_name)
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def test_platform_independent_renames(self):
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for module_name, new_module_name in self.all_platforms.items():
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self.check_rename(module_name, new_module_name)
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def test_platform_specific_renames(self):
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renames = self.inclusive_platforms.get(sys.platform, {})
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for module_name, new_module_name in renames.items():
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self.check_removal(module_name, new_module_name, optional=True)
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def test_main():
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run_unittest(TestPy3KWarnings,
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TestStdlibRemovals,
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TestStdlibRenames)
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if __name__ == '__main__':
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test_main()
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