fix tests

Author: arembridge

polyfactory/utils/normalize_type.py

@@ -40,7 +40,7 @@ def normalize_type(type_annotation: Any) -> Any:
     """
 
     if is_type_alias(type_annotation):
-        return type_annotation.__value__
+        return normalize_type(type_annotation.__value__)
 
     if not is_generic_alias(type_annotation):
         return type_annotation
@@ -85,7 +85,7 @@ def __apply_substitutions(target: Any, subs: Mapping[Any, Any]) -> Any:
 
     if is_union(target):
         args = tuple(__apply_substitutions(arg, subs) for arg in get_args(target))
-        return Union[args]
+        return Union[*args]
 
     origin = get_origin(target)
     args = get_args(target)

polyfactory/utils/predicates.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import sys
 from inspect import isclass
 from typing import Annotated, Any, ForwardRef, Literal, NewType, Optional, TypeGuard, TypeVar, get_args, get_origin
 
@@ -10,11 +11,12 @@
     TypeAliasType,
 )
 
-try:
-    from typing_extensions import TypeAliasType as typing_TypeAliasType
+# Python 3.12+ has TypeAliasType in typing module, and it's different from typing_extensions version
+if sys.version_info >= (3, 12):
+    from typing import TypeAliasType as typing_TypeAliasType
 
     AllTypeAliasTypes: tuple[type, ...] = (TypeAliasType, typing_TypeAliasType)
-except ImportError:
+else:
     AllTypeAliasTypes = (TypeAliasType,)