Turn scope["client"] to None on TestClient (encode#2377)

* Remove client scope from testclient

* remove test

* Update testclient.py

---------

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>

starlette/testclient.py

@@ -245,7 +245,7 @@ def handle_request(self, request: httpx.Request) -> httpx.Response:
                 "scheme": scheme,
                 "query_string": query.encode(),
                 "headers": headers,
-                "client": ["testclient", 50000],
+                "client": None,
                 "server": [host, port],
                 "subprotocols": subprotocols,
                 "state": self.app_state.copy(),
@@ -263,7 +263,7 @@ def handle_request(self, request: httpx.Request) -> httpx.Response:
             "scheme": scheme,
             "query_string": query.encode(),
             "headers": headers,
-            "client": ["testclient", 50000],
+            "client": None,
             "server": [host, port],
             "extensions": {"http.response.debug": {}},
             "state": self.app_state.copy(),

tests/test_testclient.py

@@ -254,19 +254,6 @@ async def asgi(receive, send):
         assert data == {"message": "test"}
 
 
-def test_client(test_client_factory):
-    async def app(scope, receive, send):
-        client = scope.get("client")
-        assert client is not None
-        host, port = client
-        response = JSONResponse({"host": host, "port": port})
-        await response(scope, receive, send)
-
-    client = test_client_factory(app)
-    response = client.get("/")
-    assert response.json() == {"host": "testclient", "port": 50000}
-
-
 @pytest.mark.parametrize("param", ("2020-07-14T00:00:00+00:00", "España", "voilà"))
 def test_query_params(test_client_factory, param: str):
     def homepage(request):