Avoid jsonschema RefResolutionError warning

Author: Tooru

conftest.py

@@ -8,3 +8,12 @@
 
 # Ensure tests never depend on a developer's real OpenRouter key from .env.
 os.environ.setdefault("OPENROUTER_API_KEY", "test-openrouter-api-key-1234567890")
+
+try:
+    import jsonschema
+    from jsonschema.exceptions import _RefResolutionError
+
+    if "RefResolutionError" not in jsonschema.__dict__:
+        jsonschema.RefResolutionError = _RefResolutionError  # type: ignore[attr-defined]
+except Exception:
+    pass

pytest.ini

@@ -36,4 +36,4 @@ filterwarnings =
     #
     # Example (uncomment if needed):
     # ignore::DeprecationWarning:some_third_party_lib.*
-    ignore:jsonschema\.exceptions\.RefResolutionError is deprecated.*:DeprecationWarning:schemathesis\.generation\.coverage
+    ignore:jsonschema\.exceptions\.RefResolutionError is deprecated.*:DeprecationWarning