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-rw-r--r--Lib/test/test_dataclasses.py15
1 files changed, 11 insertions, 4 deletions
diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py
index 46d4e0fedad..46f33043c27 100644
--- a/Lib/test/test_dataclasses.py
+++ b/Lib/test/test_dataclasses.py
@@ -3175,6 +3175,8 @@ class TestSlots(unittest.TestCase):
with self.assertRaisesRegex(TypeError,
"cannot create weak reference"):
weakref.ref(a)
+ with self.assertRaises(AttributeError):
+ a.__weakref__
def test_slots_weakref(self):
@dataclass(slots=True, weakref_slot=True)
@@ -3183,7 +3185,9 @@ class TestSlots(unittest.TestCase):
self.assertIn("__weakref__", A.__slots__)
a = A(1)
- weakref.ref(a)
+ a_ref = weakref.ref(a)
+
+ self.assertIs(a.__weakref__, a_ref)
def test_slots_weakref_base_str(self):
class Base:
@@ -3249,7 +3253,8 @@ class TestSlots(unittest.TestCase):
self.assertIn("__weakref__", Base.__slots__)
self.assertNotIn("__weakref__", A.__slots__)
a = A(1)
- weakref.ref(a)
+ a_ref = weakref.ref(a)
+ self.assertIs(a.__weakref__, a_ref)
def test_weakref_slot_subclass_no_weakref_slot(self):
@dataclass(slots=True, weakref_slot=True)
@@ -3265,7 +3270,8 @@ class TestSlots(unittest.TestCase):
self.assertIn("__weakref__", Base.__slots__)
self.assertNotIn("__weakref__", A.__slots__)
a = A(1)
- weakref.ref(a)
+ a_ref = weakref.ref(a)
+ self.assertIs(a.__weakref__, a_ref)
def test_weakref_slot_normal_base_weakref_slot(self):
class Base:
@@ -3280,7 +3286,8 @@ class TestSlots(unittest.TestCase):
self.assertIn("__weakref__", Base.__slots__)
self.assertNotIn("__weakref__", A.__slots__)
a = A(1)
- weakref.ref(a)
+ a_ref = weakref.ref(a)
+ self.assertIs(a.__weakref__, a_ref)
class TestDescriptors(unittest.TestCase):