import { describe, expect, it, vi } from 'vitest';

// 单测不碰真实总线：mock 掉 bus/nats，真实模块（及其 NATS 连接）永不求值
vi.mock('../../src/shared/bus/nats', () => ({
  checkNats: async () => 'ok' as const,
}));

import { buildApp } from '../../src/app/app';

describe('health', () => {
  it('nats 探活 ok（mock）时返回 200', async () => {
    const res = await buildApp().request('/health');
    expect(res.status).toBe(200);
    const body = (await res.json()) as {
      ok: boolean;
      service: string;
      checks: Record<string, string>;
    };
    expect(body.ok).toBe(true);
    expect(body.service).toMatch(/^bpos-service-/);
    expect(body.checks['nats']).toBe('ok');
  });
});