Add a test for timeout

tests/codegen/test_rpc.py

@@ -1,12 +1,18 @@
+import asyncio
+import importlib
 import shutil
 from datetime import timedelta
 
+import grpc
+import grpc.aio
 import pytest
 
-import importlib
 from replit_river.client import Client
 from replit_river.codegen.client import schema_to_river_client_codegen
+from replit_river.error_schema import RiverException
+from replit_river.rpc import rpc_method_handler
 from tests.common_handlers import basic_rpc_method
+from tests.conftest import HandlerMapping, deserialize_request, serialize_response
 
 
 @pytest.fixture(scope="session", autouse=True)
@@ -35,3 +41,32 @@ async def test_basic_rpc(client: Client) -> None:
         timedelta(seconds=5),
     )
     assert res.data == "Hello, feep!", f"Expected 'Hello, feep!' received {res.data}"
+
+
+async def rpc_timeout_handler(request: str, context: grpc.aio.ServicerContext) -> str:
+    await asyncio.sleep(1)
+    return f"Hello, {request}!"
+
+
+rpc_timeout_method: HandlerMapping = {
+    ("test_service", "rpc_method"): (
+        "rpc",
+        rpc_method_handler(
+            rpc_timeout_handler, deserialize_request, serialize_response
+        ),
+    )
+}
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("handlers", [{**rpc_timeout_method}])
+async def test_rpc_timeout(client: Client) -> None:
+    from tests.codegen.rpc.generated import RpcClient
+
+    with pytest.raises(RiverException):
+        await RpcClient(client).test_service.rpc_method(
+            {
+                "data": "feep",
+            },
+            timedelta(milliseconds=200),
+        )