[CI][RFC] Replace black-jupyter with ruff-format (#37210)

Co-authored-by: Alison Shao <a.shao@wustl.edu>

experimental/sgl-router/tests/e2e/chat_completions/test_two_router_convergence.py

@@ -194,9 +194,9 @@ def _direct_warm(worker_url: str, model_id: str, prefix: str) -> None:
         },
         timeout=60.0,
     )
-    assert (
-        r.status_code == 200
-    ), f"direct warm to {worker_url} failed: HTTP {r.status_code} {r.text!r}"
+    assert r.status_code == 200, (
+        f"direct warm to {worker_url} failed: HTTP {r.status_code} {r.text!r}"
+    )
 
 
 def _route_through(router_url: str, model_id: str, prompt: str) -> str:
@@ -212,9 +212,9 @@ def _route_through(router_url: str, model_id: str, prompt: str) -> str:
     after = _success_counts_by_worker(router_url)
     deltas = {w: after.get(w, 0) - before.get(w, 0) for w in set(after) | set(before)}
     winners = [w for w, d in deltas.items() if d > 0]
-    assert (
-        len(winners) == 1
-    ), f"expected exactly one worker delta on {router_url}, got {deltas}"
+    assert len(winners) == 1, (
+        f"expected exactly one worker delta on {router_url}, got {deltas}"
+    )
     return winners[0]
 
 
@@ -309,15 +309,15 @@ def test_routers_route_by_prefix_content(
                         landed = _route_through(
                             router.base_url, spec["model"], PREFIX_X
                         )
-                        assert (
-                            landed == worker_x.url
-                        ), f"router {label}: PREFIX_X must route to {worker_x.url}; landed on {landed}"
+                        assert landed == worker_x.url, (
+                            f"router {label}: PREFIX_X must route to {worker_x.url}; landed on {landed}"
+                        )
                         landed = _route_through(
                             router.base_url, spec["model"], PREFIX_Y
                         )
-                        assert (
-                            landed == worker_y.url
-                        ), f"router {label}: PREFIX_Y must route to {worker_y.url}; landed on {landed}"
+                        assert landed == worker_y.url, (
+                            f"router {label}: PREFIX_Y must route to {worker_y.url}; landed on {landed}"
+                        )
                 except Exception:
                     _dump_logs(logs)
                     raise

experimental/sgl-router/tests/e2e/chat_completions/test_validation.py

@@ -50,9 +50,9 @@ def test_chat_non_streaming_returns_assistant_message(
                 body = resp.json()
                 choice = body["choices"][0]
                 assert choice["message"]["role"] == "assistant"
-                assert choice["message"][
-                    "content"
-                ], f"empty assistant content: {choice!r}"
+                assert choice["message"]["content"], (
+                    f"empty assistant content: {choice!r}"
+                )
                 assert choice.get("finish_reason"), choice
     finally:
         gpu_allocator.release(gpu)
@@ -91,8 +91,8 @@ def test_chat_streaming_emits_sse_chunks_with_done(
                         if line.startswith("data:"):
                             chunks.append(line.strip())
                 assert len(chunks) >= 2, f"expected >=2 SSE chunks, got: {chunks}"
-                assert any(
-                    "[DONE]" in c for c in chunks
-                ), f"no [DONE] terminator in stream: {chunks}"
+                assert any("[DONE]" in c for c in chunks), (
+                    f"no [DONE] terminator in stream: {chunks}"
+                )
     finally:
         gpu_allocator.release(gpu)