fix tests

Author: changhc

tests/serializers/test_model.py

@@ -1,9 +1,10 @@
 import dataclasses
 import json
 import platform
+import sys
 import warnings
 from random import randint
-from typing import Any, ClassVar, Dict, Never
+from typing import Any, ClassVar, Dict
 
 try:
     from functools import cached_property
@@ -1154,7 +1155,10 @@ class BModel(BasicModel): ...
         s.to_python(value)
 
 
+@pytest.mark.skipif(sys.version_info < (3, 11), reason='typing.Never was introduced in 3.11')
 def test_never():
+    from typing import Never
+
     class MyModel:
         a: int
         b: Never

tests/test_schema_functions.py

@@ -291,6 +291,7 @@ def args(*args, **kwargs):
     (core_schema.decimal_schema, args(), {'type': 'decimal'}),
     (core_schema.decimal_schema, args(multiple_of=5, gt=1.2), {'type': 'decimal', 'multiple_of': 5, 'gt': 1.2}),
     (core_schema.complex_schema, args(), {'type': 'complex'}),
+    (core_schema.never_schema, args(), {'type': 'never'}),
     (core_schema.invalid_schema, args(), {'type': 'invalid'}),
 ]
 

tests/validators/test_never.py

@@ -1,4 +1,4 @@
-from typing import Never
+import sys
 
 import pytest
 
@@ -16,7 +16,10 @@ def test_python_never():
     assert v.validate_python(PydanticUndefined) is PydanticUndefined
 
 
+@pytest.mark.skipif(sys.version_info < (3, 11), reason='typing.Never was introduced in 3.11')
 def test_json_never():
+    from typing import Never
+
     v = SchemaValidator(core_schema.never_schema())
     with pytest.raises(ValidationError) as exc_info:
         v.validate_json('null')