test: cover subprocess cleanup and markdown entities

codex_telegram_bridge/tests/test_subprocess.py

@@ -0,0 +1,29 @@
+import asyncio
+import sys
+
+from codex_telegram_bridge import exec_bridge
+
+
+def test_manage_subprocess_kills_when_terminate_times_out(monkeypatch) -> None:
+    async def fake_wait_for(awaitable, *args, **kwargs):
+        if hasattr(awaitable, "close"):
+            awaitable.close()
+        elif hasattr(awaitable, "cancel"):
+            awaitable.cancel()
+        raise asyncio.TimeoutError
+
+    monkeypatch.setattr(exec_bridge.asyncio, "wait_for", fake_wait_for)
+
+    async def run() -> int | None:
+        async with exec_bridge.manage_subprocess(
+            sys.executable,
+            "-c",
+            "import signal, time; signal.signal(signal.SIGTERM, signal.SIG_IGN); time.sleep(10)",
+        ) as proc:
+            assert proc.returncode is None
+        return proc.returncode
+
+    rc = asyncio.run(run())
+
+    assert rc is not None
+    assert rc != 0