diff --git a/tests/test_proxy_codex_route_aliases.py b/tests/test_proxy_codex_route_aliases.py
index d74529d2e..780619995 100644
--- a/tests/test_proxy_codex_route_aliases.py
+++ b/tests/test_proxy_codex_route_aliases.py
@@ -118,9 +118,7 @@ def test_codex_responses_subpath_aliases_delegate_to_passthrough():
         ),
     ],
 )
-def test_codex_responses_subpath_passthrough_derives_chatgpt_routing_from_jwt(
-    path, expected_url
-):
+def test_codex_responses_subpath_passthrough_derives_chatgpt_routing_from_jwt(path, expected_url):
     class FakeAsyncClient:
         def __init__(self) -> None:
             self.calls: list[tuple[str, str, dict[str, str]]] = []
diff --git a/tests/test_proxy_google_cloudcode_route_aliases.py b/tests/test_proxy_google_cloudcode_route_aliases.py
index 5f2a85592..b94e918fd 100644
--- a/tests/test_proxy_google_cloudcode_route_aliases.py
+++ b/tests/test_proxy_google_cloudcode_route_aliases.py
@@ -98,9 +98,7 @@ def test_cloudcode_route_uses_cloudcode_api_override(monkeypatch):
     monkeypatch.setattr(HeadroomProxy, "_stream_response", fake_stream)
 
     with TestClient(
-        create_app(
-            ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test/v1")
-        )
+        create_app(ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test/v1"))
     ) as client:
         response = client.post(
             "/v1/v1internal:streamGenerateContent",
@@ -150,9 +148,7 @@ def test_antigravity_route_does_not_cross_route_to_cloudcode_override(monkeypatc
     monkeypatch.setattr(HeadroomProxy, "_stream_response", fake_stream)
 
     with TestClient(
-        create_app(
-            ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test")
-        )
+        create_app(ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test"))
     ) as client:
         response = client.post(
             "/v1internal:streamGenerateContent",
@@ -175,9 +171,7 @@ def test_cloudcode_override_does_not_leak_between_app_instances(monkeypatch):
     monkeypatch.setattr(HeadroomProxy, "_stream_response", fake_stream)
 
     with TestClient(
-        create_app(
-            ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test")
-        )
+        create_app(ProxyConfig(optimize=False, cloudcode_api_url="https://cloudcode-proxy.test"))
     ) as client:
         first = client.post(
             "/v1internal:streamGenerateContent",
@@ -193,6 +187,12 @@ def test_cloudcode_override_does_not_leak_between_app_instances(monkeypatch):
         )
 
     assert first.status_code == 200
-    assert first.json()["url"] == "https://cloudcode-proxy.test/v1internal:streamGenerateContent?alt=sse"
+    assert (
+        first.json()["url"]
+        == "https://cloudcode-proxy.test/v1internal:streamGenerateContent?alt=sse"
+    )
     assert second.status_code == 200
-    assert second.json()["url"] == "https://cloudcode-pa.googleapis.com/v1internal:streamGenerateContent?alt=sse"
+    assert (
+        second.json()["url"]
+        == "https://cloudcode-pa.googleapis.com/v1internal:streamGenerateContent?alt=sse"
+    )
diff --git a/tests/test_proxy_streaming_ratelimit_headers.py b/tests/test_proxy_streaming_ratelimit_headers.py
index d11d41c5c..c6a69857c 100644
--- a/tests/test_proxy_streaming_ratelimit_headers.py
+++ b/tests/test_proxy_streaming_ratelimit_headers.py
@@ -220,9 +220,7 @@ class TestStreamingRatelimitHeaderForwarding:
                 "content-length": "42",
             }
         )
-        mock_response.aread = AsyncMock(
-            return_value=b'{"error":{"message":"capacity exhausted"}}'
-        )
+        mock_response.aread = AsyncMock(return_value=b'{"error":{"message":"capacity exhausted"}}')
         mock_response.aclose = AsyncMock()
 
         mock_request = MagicMock()