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Add a test for #13021

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Confirmed the upstream fix for [1] given at [2] solves the issue
illustrated here, this patch adds a test for this case as our
existing tests did not catch this error in python 3.14.1.

Fixes: #13021
Change-Id: Ie6827279ccf2b2cb2e0fe6029aafdcfefc790f1f
This commit is contained in:
Mike Bayer
2025-12-03 14:48:08 -05:00
parent 229a71fb0a
commit 133f14dabe
2 changed files with 96 additions and 0 deletions
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test/orm/declarative/test_dc_transforms.py
+48
View File
@@ -1690,6 +1690,54 @@ class DataclassesForNonMappedClassesTest(fixtures.TestBase):
n1 = Novel("the description")
eq_(n1.description, "the description")
def test_cpython_142214(self, dc_decl_base):
"""test for the cpython issue shown in issue #13021"""
class User(dc_decl_base):
__tablename__ = "user_account"
id: Mapped[int] = mapped_column(init=False, primary_key=True)
name: Mapped[str]
class CreatedByMixin(MappedAsDataclass, kw_only=True):
created_by_fk: Mapped[int] = mapped_column(
ForeignKey("user_account.id"), init=False
)
@declared_attr
@classmethod
def created_by(cls) -> Mapped[User]:
return relationship(foreign_keys=[cls.created_by_fk])
class Item(CreatedByMixin, dc_decl_base, kw_only=True):
__tablename__ = "item"
id: Mapped[int] = mapped_column(init=False, primary_key=True)
description: Mapped[str]
class SpecialItem(Item, kw_only=True):
__tablename__ = "special_item"
id: Mapped[int] = mapped_column(
ForeignKey("item.id"), init=False, primary_key=True
)
special_description: Mapped[str]
special_item = SpecialItem(
special_description="sd1",
description="d1",
created_by=User(name="u1"),
)
eq_(
special_item,
SpecialItem(
special_description="sd1",
description="d1",
created_by=User(name="u1"),
),
)
class DataclassArgsTest(fixtures.TestBase):
dc_arg_names = (
test/orm/declarative/test_dc_transforms_future_anno_sync.py
+48
View File
@@ -1707,6 +1707,54 @@ class DataclassesForNonMappedClassesTest(fixtures.TestBase):
n1 = Novel("the description")
eq_(n1.description, "the description")
def test_cpython_142214(self, dc_decl_base):
"""test for the cpython issue shown in issue #13021"""
class User(dc_decl_base):
__tablename__ = "user_account"
id: Mapped[int] = mapped_column(init=False, primary_key=True)
name: Mapped[str]
class CreatedByMixin(MappedAsDataclass, kw_only=True):
created_by_fk: Mapped[int] = mapped_column(
ForeignKey("user_account.id"), init=False
)
@declared_attr
@classmethod
def created_by(cls) -> Mapped[User]:
return relationship(foreign_keys=[cls.created_by_fk])
class Item(CreatedByMixin, dc_decl_base, kw_only=True):
__tablename__ = "item"
id: Mapped[int] = mapped_column(init=False, primary_key=True)
description: Mapped[str]
class SpecialItem(Item, kw_only=True):
__tablename__ = "special_item"
id: Mapped[int] = mapped_column(
ForeignKey("item.id"), init=False, primary_key=True
)
special_description: Mapped[str]
special_item = SpecialItem(
special_description="sd1",
description="d1",
created_by=User(name="u1"),
)
eq_(
special_item,
SpecialItem(
special_description="sd1",
description="d1",
created_by=User(name="u1"),
),
)
class DataclassArgsTest(fixtures.TestBase):
dc_arg_names = (