🧪 Add test to show issue with non-ascii chars in query params

tests/test_starlette_urlconvertors.py

@@ -1,4 +1,4 @@
-from fastapi import FastAPI, Path
+from fastapi import FastAPI, Path, Query
 from fastapi.testclient import TestClient
 
 app = FastAPI()
@@ -19,6 +19,11 @@ def path_convertor(param: str = Path()):
     return {"path": param}
 
 
+@app.get("/query/")
+def query_convertor(param: str = Query()):
+    return {"query": param}
+
+
 client = TestClient(app)
 
 
@@ -45,6 +50,13 @@ def test_route_converters_path():
     assert response.json() == {"path": "some/example"}
 
 
+def test_route_converters_query():
+    # Test query conversion
+    response = client.get("/query", params={"param": "Qué tal!"})
+    assert response.status_code == 200, response.text
+    assert response.json() == {"query": "Qué tal!"}
+
+
 def test_url_path_for_path_convertor():
     assert (
         app.url_path_for("path_convertor", param="some/example") == "/path/some/example"