from starlette import asgi_application, Response, TestClient def test_sync_app(): @asgi_application def app(request): return Response("hello, world", media_type="text/plain") client = TestClient(app) response = client.get("/") assert response.status_code == 200 assert response.text == "hello, world" def test_async_app(): @asgi_application async def app(request): body = await request.body() return Response(body, media_type="text/plain") client = TestClient(app) response = client.post("/", json={"hello": "world"}) assert response.status_code == 200 assert response.text == '{"hello": "world"}'