// also reaches this test after several gateway/plugin restart exercises.

const E2E_TIMEOUT_MS = 90_000;

function isProcessAlive(pid: number): boolean {

try {

process.kill(pid, 0);

return true;

} catch (error) {

if ((error as NodeJS.ErrnoException).code === "ESRCH") {

return false;

}

throw error;

}

}

function installTestClaudeBackend(params: { commandPath: string; liveSession?: "claude-stdio" }) {

cliBackendsTesting.setDepsForTest({

resolveRuntimeCliBackends: () => [],

expect(getActiveMcpLoopbackRuntime()).toBeUndefined();

const fakeClaudePid = Number.parseInt(await fs.readFile(fakeClaudePidPath, "utf-8"), 10);

expect(Number.isFinite(fakeClaudePid)).toBe(true);

expect(() => process.kill(fakeClaudePid, 0)).toThrow();

expect(isProcessAlive(fakeClaudePid)).toBe(false);

} finally {

await closeMcpLoopbackServer();

resetGlobalHookRunner();