Method dispatch

tests/middleware/test_base.py:610–619

(
            self,
            request: Request,
            call_next: RequestResponseEndpoint,
        )

    class ConsumingMiddleware(BaseHTTPMiddleware):
        async def dispatch(
            self,
            request: Request,
            call_next: RequestResponseEndpoint,
        ) -> Response:
            expected = [b"a", b""]
            async for chunk in request.stream():
                assert chunk == expected.pop(0)
            assert expected == []
            return await call_next(request)

    app = Starlette(
        routes=[Route("/", homepage, methods=["POST"])],