Teach Context about deepcopy (#118206)

Teach context about deepcopy

homeassistant/core.py

@@ -1259,6 +1259,14 @@ class Context:
         """Compare contexts."""
         return isinstance(other, Context) and self.id == other.id
 
+    def __copy__(self) -> Context:
+        """Create a shallow copy of this context."""
+        return Context(user_id=self.user_id, parent_id=self.parent_id, id=self.id)
+
+    def __deepcopy__(self, memo: dict[int, Any]) -> Context:
+        """Create a deep copy of this context."""
+        return Context(user_id=self.user_id, parent_id=self.parent_id, id=self.id)
+
     @cached_property
     def _as_dict(self) -> dict[str, str | None]:
         """Return a dictionary representation of the context.

tests/helpers/test_llm.py

@@ -90,6 +90,7 @@ async def test_assist_api(hass: HomeAssistant) -> None:
     assert str(tool) == "<IntentTool - test_intent>"
 
     test_context = Context()
+    assert test_context.json_fragment  # To reproduce an error case in tracing
     intent_response = intent.IntentResponse("*")
     intent_response.matched_states = [State("light.matched", "on")]
     intent_response.unmatched_states = [State("light.unmatched", "on")]