Refactor enum implementation in test_enum.py and fix strawberry_enum …

…usage in StrawberryAnnotation

strawberry/annotation.py

@@ -187,7 +187,7 @@ def create_enum(self, evaled_type: Any) -> EnumDefinition:
         try:
             return evaled_type._enum_definition
         except AttributeError:
-            return strawberry_enum(evaled_type)
+            return strawberry_enum(evaled_type)._enum_definition
 
     def create_list(self, evaled_type: Any) -> StrawberryList:
         item_type, *_ = get_args(evaled_type)

tests/enums/test_enum.py

@@ -6,6 +6,8 @@
 from strawberry.exceptions import ObjectIsNotAnEnumError
 from strawberry.types.enum import EnumDefinition
 
+from strawberry.types.base import get_object_definition
+
 
 def test_basic_enum():
     @strawberry.enum
@@ -203,3 +205,16 @@ def foo(self, foo: Foo) -> int:
     assert not res.errors
     assert res.data
     assert res.data["foo"] == 1
+
+def test_default_enum_reuse() -> None:
+    class Foo(Enum):
+        BAR = "bar"
+        BAZ = "baz"
+
+    @strawberry.type
+    class SomeType:
+        foo: Foo
+        bar: Foo
+
+    definition = get_object_definition(SomeType, strict=True)
+    assert definition.fields[1].type  is definition.fields[1].type