import { Test } from '@nestjs/testing';
import { describe, expect, it } from 'vitest';
import { MeshService } from '../mesh/mesh.service.js';
import { BatteryAlertModule } from './battery.module.js';
import { BatteryAlertService } from './battery.service.js';

describe('DI wiring (module graph)', () => {
  // compile() instantiates providers but does not run lifecycle hooks, so no TCP connection is opened.
  it('resolves BatteryAlertService with MeshService provided by MeshModule', async () => {
    process.env.MESH_DB_PATH = ':memory:'; // keep openMessageDb from touching the repo's ./data
    const moduleRef = await Test.createTestingModule({
      imports: [BatteryAlertModule],
    }).compile();
    expect(moduleRef.get(BatteryAlertService)).toBeInstanceOf(
      BatteryAlertService,
    );
    expect(moduleRef.get(MeshService)).toBeInstanceOf(MeshService);
  });
});