refactor: migrate exec bridge to anyio and harden cancellation (#6)

tests/test_subprocess.py

@@ -1,29 +1,19 @@
-import asyncio
 import sys
 
+import pytest
+
 from takopi 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
+@pytest.mark.anyio
+async def test_manage_subprocess_kills_when_terminate_times_out() -> None:
+    async with exec_bridge.manage_subprocess(
+        sys.executable,
+        "-c",
+        "import signal, time; signal.signal(signal.SIGTERM, signal.SIG_IGN); time.sleep(10)",
+        terminate_timeout=0.01,
+    ) as proc:
+        assert proc.returncode is None
 
-    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
+    assert proc.returncode is not None
+    assert proc.returncode != 0