MongoMemoryServer ;未处理的错误

Posted 2023-03-08

【中文标题】MongoMemoryServer ;未处理的错误

【英文标题】：MongoMemoryServer ; Unhandled Errors

【发布时间】：2019-09-17 07:06:19

【问题描述】：

我正在使用 jest、supertest 和 mongo-memory-server 测试 typescript express-mongoose 应用程序。所有测试都通过了，但是我在使用 mongo-memory-server 的每个测试中都遇到了这个错误。 我发现 mongoose.disconnect 导致它，但我仍然无法修复它

import  MongoMemoryServer  from 'mongodb-memory-server';
let mongoServer: any;
jasmine.DEFAULT_TIMEOUT_INTERVAL = 600000;
describe('createUser', (): void => 
  let mongoServer: any;
  const opts = ; 
  beforeAll(async () => 
    mongoServer = new MongoMemoryServer();
    const mongoUri = await mongoServer.getConnectionString();
    await mongoose.connect(mongoUri, opts, err => );
  );

  afterAll(async () => 
    mongoose.disconnect();
    await mongoServer.stop();
  );

  it('creating user', async (): Promise<void> => 
    const email = '[e-mail]';
    const username = 'testUser';
    const password = 'testPassword';
    const  userId  = await createUser(email, username, password);
    expect(userId).toBeTruthy();
    expect(typeof userId).toMatch('string');
  );
);

console.error node_modules/jest-jasmine2/build/jasmine/Env.js:289
   Unhandled error
    console.error node_modules/jest-jasmine2/build/jasmine/Env.js:290
      Error [ERR_UNHANDLED_ERROR]: Unhandled error. (MongoNetworkError: read ECONNRESET)
          at Connection.emit (events.js:178:17)
          at Socket.<anonymous> (C:\Users\PC\Desktop\typescript-mern-budget-app\server\node_modules\mongodb-core\lib\connection\connection.js:321:10)
          at Object.onceWrapper (events.js:277:13)
          at Socket.emit (events.js:189:13)
          at emitErrorNT (internal/streams/destroy.js:82:8)
          at emitErrorAndCloseNT (internal/streams/destroy.js:50:3)
          at process._tickCallback (internal/process/next_tick.js:63:19)

【参考方案1】：

afterAll(async () => 
  await mongo.stop();
  await mongoose.connection.close();
);

问题是你没有在等待这两个函数。