test: add tests for enum behavior with msgspec structures

Author: mikewolfd

tests/test_enum_casting.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+"""
+Test enum usage behavior in Schema.org models.
+"""
+
+import msgspec
+
+from msgspec_schemaorg.models.event import DeliveryEvent
+from msgspec_schemaorg.enums.intangible.DeliveryMethod import DeliveryMethod
+
+
+def test_enum_usage():
+    """Test basic enum behavior with msgspec models."""
+    # 1. Test passing an enum value directly
+    event1 = DeliveryEvent(hasDeliveryMethod=DeliveryMethod.LockerDelivery)
+    assert isinstance(event1.hasDeliveryMethod, DeliveryMethod)
+    assert event1.hasDeliveryMethod == DeliveryMethod.LockerDelivery
+    assert event1.hasDeliveryMethod.value == "LockerDelivery"
+    
+    # 2. Test passing a string value (not automatically converted to enum)
+    event2 = DeliveryEvent(hasDeliveryMethod="LockerDelivery")
+    assert isinstance(event2.hasDeliveryMethod, str)
+    assert event2.hasDeliveryMethod == "LockerDelivery"
+    
+    # 3. Test string values still compare equal to enum values
+    assert event2.hasDeliveryMethod == DeliveryMethod.LockerDelivery.value
+    
+    # 4. Test passing a list of enum values
+    event3 = DeliveryEvent(hasDeliveryMethod=[
+        DeliveryMethod.LockerDelivery, 
+        DeliveryMethod.ParcelService
+    ])
+    assert isinstance(event3.hasDeliveryMethod, list)
+    assert all(isinstance(item, DeliveryMethod) for item in event3.hasDeliveryMethod)
+    
+    # 5. Test passing a list of strings
+    event4 = DeliveryEvent(hasDeliveryMethod=["LockerDelivery", "ParcelService"])
+    assert isinstance(event4.hasDeliveryMethod, list)
+    assert all(isinstance(item, str) for item in event4.hasDeliveryMethod)
+    
+    # 6. Test encoding to JSON (both should serialize identically)
+    json_bytes1 = msgspec.json.encode(event1)
+    json_bytes2 = msgspec.json.encode(event2)
+    assert json_bytes1 == json_bytes2
+    
+    # In both cases, enums are serialized as their string value
+    json_str = json_bytes1.decode()
+    assert '"hasDeliveryMethod":"LockerDelivery"' in json_str
+    
+    # 7. Test invalid values are allowed (no validation against enum)
+    event5 = DeliveryEvent(hasDeliveryMethod="InvalidDeliveryMethod")
+    assert event5.hasDeliveryMethod == "InvalidDeliveryMethod"
+    
+    print("All enum usage tests passed!")
+
+
+if __name__ == "__main__":
+    test_enum_usage()