Jest 超时测试 Koa 路由

Question

我开始使用 Jest 来测试我们的 API。然而，当我添加第二个测试时，一切都崩溃了，并出现超时异常。

这是我的代码：

const server = require('../server')
const request = require('supertest')
const path = require("path")
const fs = require("fs")
const config = require('../knexfile.js')
const knex = require('knex')(config.development)

beforeAll(async () => {
  let file = fs.readFileSync(path.join(__dirname, '..', 'galaxycard.sql'), 'utf8')
  await knex.raw(file)
  await knex.migrate.latest()
})

afterAll(async () => {
  await knex.raw(`
    DROP SCHEMA public CASCADE;
    CREATE SCHEMA public;
    GRANT ALL ON SCHEMA public TO public;
  `)
  server.close()
})

describe("test 1", () => {
  it("should not be able to add a payment for user without credit", async () => {
    let response = await request(server)
      .post('/v1/hampers')
      .set('Content-Type', 'application/json')
      .send({
        entity_type: 'utility',
        latitude: 1,
        longitude: 1,
        comment: null,
        user_id: new Date().getTime(),
        amount: -200,
        entity_id: 1,
        processed: false
      })
    expect(response.status).toEqual(402)
  })
})

describe("test 2", () => {
  let userId
  beforeEach(async () => {
    userId = new Date().getTime()
    let response = await request(server)
      .post('/v1/hampers')
      .set('Content-Type', 'application/json')
      .send({
        entity_type: 'credit',
        latitude: 0,
        longitude: 0,
        user_id: userId,
        amount: 5000,
        entity_id: 1,
        processed: true
      })
    expect(response.status).toEqual(200)
    expect(JSON.parse(response.text)).toHaveProperty('uuid')
  })

  it("have hampers", async () => {
    let response = await request(server)
      .post('/v1/hampers')
      .set('Content-Type', 'application/json')
      .send({
        entity_type: 'utility',
        latitude: 1,
        longitude: 1,
        comment: null,
        user_id: userId,
        amount: -200,
        entity_id: 1,
        processed: false
      })
    expect(response.status).toEqual(200)
    expect(JSON.parse(response.text)).toHaveProperty('uuid')
  })
})

Jest 不断死去：

Timeout - Async callback was not invoked within the 5000ms timeout
specified by jest.setTimeout.

另一个奇怪的问题是 Jest 在测试运行后不会退出，即使我使用 server.close.

Answer 1

第二个问题（似乎在测试运行后挂起）可能是由于您的afterAll中缺少knex.destroy()造成的。看到你的路由定义后，我可以谈谈第一个问题。

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