Fix runtime review findings

clients/python/tests/test_auth_options.py

@@ -61,7 +61,15 @@ def test_create_channel_uses_plaintext_channel(monkeypatch: pytest.MonkeyPatch)
     channel = create_channel(ClientOptions(endpoint="localhost:5000", plaintext=True))
 
     assert channel == "plain-channel"
-    assert calls == [("localhost:5000", [])]
+    assert calls == [
+        (
+            "localhost:5000",
+            [
+                ("grpc.max_receive_message_length", 16 * 1024 * 1024),
+                ("grpc.max_send_message_length", 16 * 1024 * 1024),
+            ],
+        ),
+    ]
 
 
 def test_create_channel_uses_tls_channel(monkeypatch: pytest.MonkeyPatch) -> None:
@@ -95,9 +103,13 @@ def test_create_channel_uses_tls_channel(monkeypatch: pytest.MonkeyPatch) -> Non
 
     assert channel == "tls-channel"
     assert calls == [
-        (
-            "gateway.example:5001",
-            "creds",
-            [("grpc.ssl_target_name_override", "gateway.test")],
-        ),
-    ]
+            (
+                "gateway.example:5001",
+                "creds",
+                [
+                    ("grpc.max_receive_message_length", 16 * 1024 * 1024),
+                    ("grpc.max_send_message_length", 16 * 1024 * 1024),
+                    ("grpc.ssl_target_name_override", "gateway.test"),
+                ],
+            ),
+        ]