javascript - Mocha : Error Timeout of 2000ms exceeded

Question

我正在尝试为数据库播种以进行单元测试。

下面是 seed.js 文件:

.......
const app = require('./app')
const db = app.get('db')

const saveUsersToDB = (done) => {
    db.User.bulkCreate(users)
         .then(() => (done))
}

module.exports = {saveUsersToDB};

我的 app.test.js 文件:

.......
const expect = require('expect')
const request = require('supertest')
const {saveUsersToDB} = require('./seed/seed');

before(saveUsersToDB)

当我运行下面的测试是我得到的错误:

Express listening on port 3000!
  1) "before all" hook: saveUsersToDB

  0 passing (2s)
  1 failing

  1)  "before all" hook: saveUsersToDB:
     Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

npm ERR! Test failed.  See above for more details.

我认为返回 .then(() => (done)) 就足够了？我做错了什么？

Answer 1

默认情况下，Mocha 测试有 2 秒的超时时间(这意味着测试需要在 2 秒内完成)。

您可以按如下方式增加它(以毫秒为单位):

this.timeout(5000); // this test can take up to 5 seconds

https://mochajs.org/#timeouts