});

});

test("background exec with timeout zero bypasses default timeout", async () => {

const tool = createTestExecTool({

allowBackground: true,

backgroundMs: 0,

timeoutSec: BACKGROUND_TIMEOUT_SEC,

});

const result = await tool.execute("toolcall", {

command: BACKGROUND_HOLD_CMD,

background: true,

timeout: 0,

});

expect(result.details.status).toBe("running");

const sessionId = (result.details as { sessionId: string }).sessionId;

expect(supervisorMockState.spawnInputs.at(-1)?.timeoutMs).toBeUndefined();

expect(getFinishedSession(sessionId)).toBeUndefined();

expect(getSession(sessionId)?.exited).toBe(false);

cleanupRunningSession(sessionId);

});

test("yielded background exec still times out", async () => {

const tool = createTestExecTool({ allowBackground: true, backgroundMs: 10 });

await expectBackgroundSessionTimesOut({