diff options
Diffstat (limited to 'Lib/test/test_descr.py')
| -rw-r--r-- | Lib/test/test_descr.py | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py index 76937432a43..f6ec2cf5ce8 100644 --- a/Lib/test/test_descr.py +++ b/Lib/test/test_descr.py @@ -409,7 +409,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): def test_python_dicts(self): # Testing Python subclass of dict... - self.assertTrue(issubclass(dict, dict)) + self.assertIsSubclass(dict, dict) self.assertIsInstance({}, dict) d = dict() self.assertEqual(d, {}) @@ -433,7 +433,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): self.state = state def getstate(self): return self.state - self.assertTrue(issubclass(C, dict)) + self.assertIsSubclass(C, dict) a1 = C(12) self.assertEqual(a1.state, 12) a2 = C(foo=1, bar=2) @@ -1048,15 +1048,15 @@ class ClassPropertiesAndMethods(unittest.TestCase): m = types.ModuleType("m") self.assertTrue(m.__class__ is types.ModuleType) - self.assertFalse(hasattr(m, "a")) + self.assertNotHasAttr(m, "a") m.__class__ = SubType self.assertTrue(m.__class__ is SubType) - self.assertTrue(hasattr(m, "a")) + self.assertHasAttr(m, "a") m.__class__ = types.ModuleType self.assertTrue(m.__class__ is types.ModuleType) - self.assertFalse(hasattr(m, "a")) + self.assertNotHasAttr(m, "a") # Make sure that builtin immutable objects don't support __class__ # assignment, because the object instances may be interned. @@ -1780,7 +1780,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): class E: # *not* subclassing from C foo = C.foo self.assertEqual(E().foo.__func__, C.foo) # i.e., unbound - self.assertTrue(repr(C.foo.__get__(C())).startswith("<bound method ")) + self.assertStartsWith(repr(C.foo.__get__(C())), "<bound method ") def test_compattr(self): # Testing computed attributes... @@ -2058,7 +2058,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): class E(object): foo = C.foo self.assertEqual(E().foo.__func__, C.foo) # i.e., unbound - self.assertTrue(repr(C.foo.__get__(C(1))).startswith("<bound method ")) + self.assertStartsWith(repr(C.foo.__get__(C(1))), "<bound method ") @support.impl_detail("testing error message from implementation") def test_methods_in_c(self): @@ -3943,6 +3943,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): del C.__del__ @unittest.skipIf(support.is_emscripten, "Seems to works in Pyodide?") + @support.skip_wasi_stack_overflow() def test_slots_trash(self): # Testing slot trash... # Deallocating deeply nested slotted trash caused stack overflows @@ -4113,6 +4114,34 @@ class ClassPropertiesAndMethods(unittest.TestCase): else: self.fail("shouldn't be able to create inheritance cycles") + def test_assign_bases_many_subclasses(self): + # This is intended to check that typeobject.c:queue_slot_update() can + # handle updating many subclasses when a slot method is re-assigned. + class A: + x = 'hello' + def __call__(self): + return 123 + def __getitem__(self, index): + return None + + class X: + x = 'bye' + + class B(A): + pass + + subclasses = [] + for i in range(1000): + sc = type(f'Sub{i}', (B,), {}) + subclasses.append(sc) + + self.assertEqual(subclasses[0]()(), 123) + self.assertEqual(subclasses[0]().x, 'hello') + B.__bases__ = (X,) + with self.assertRaises(TypeError): + subclasses[0]()() + self.assertEqual(subclasses[0]().x, 'bye') + def test_builtin_bases(self): # Make sure all the builtin types can have their base queried without # segfaulting. See issue #5787. @@ -4523,6 +4552,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): del o @support.skip_wasi_stack_overflow() + @support.skip_emscripten_stack_overflow() @support.requires_resource('cpu') def test_wrapper_segfault(self): # SF 927248: deeply nested wrappers could cause stack overflow @@ -4867,6 +4897,7 @@ class ClassPropertiesAndMethods(unittest.TestCase): deque.append(thing, thing) @support.skip_emscripten_stack_overflow() + @support.skip_wasi_stack_overflow() def test_repr_as_str(self): # Issue #11603: crash or infinite loop when rebinding __str__ as # __repr__. @@ -5194,8 +5225,8 @@ class DictProxyTests(unittest.TestCase): # We can't blindly compare with the repr of another dict as ordering # of keys and values is arbitrary and may differ. r = repr(self.C.__dict__) - self.assertTrue(r.startswith('mappingproxy('), r) - self.assertTrue(r.endswith(')'), r) + self.assertStartsWith(r, 'mappingproxy(') + self.assertEndsWith(r, ')') for k, v in self.C.__dict__.items(): self.assertIn('{!r}: {!r}'.format(k, v), r) |