TypeError: strapi.stop is not a function

[TheAnimeSenpai]

i'm trying to use Jest testing framework along with strapi. The project itself works as expected but when attempting to run tests for it, it crashes.

Jest setup file

const path = require('path');

dotenv.config({ path: path.resolve(__dirname, `../../.env.test`)});

const strapi = require('strapi');
const request = require('supertest');

jest.setTimeout(15000);

beforeAll(done => {
  strapi.start({}, err => {
    jasmine.DEFAULT_TIMEOUT_INTERVAL = 10000;
    if(err) {
        return done(err);
    }

    done(err, strapi);
  });
});

afterAll(done => {
  strapi.stop(done());
});

Error Output Snippet

 FAIL  tests/controllers/sample.test.js
  ● Test suite failed to run

    TypeError: strapi.stop is not a function

      21 |
      22 | afterAll(done => {
    > 23 |   strapi.stop(done());
         |          ^
      24 | });

      at Object.<anonymous> (tests/config/setup.js:23:10)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        21.146s

Test File

describe('API - Sample', () => {
    test('get all samples', async () => {
      const response = await app
        .get('/samples')
        .expect(200);
  
      expect(response.body).not.toBeNull();
      expect(response.body.length).toBeGreaterThanOrEqual(3);
  
      //data here is the first object passed in the seed file.
      expect(response.body).toContainEqual({
        id: 1,
        username: expect.String('ichi'),
        createdAt: expect.any(String),
        updatedAt: expect.any(String)
      });
    });
});

Steps to reproduce the behavior

1. Create a new project
2. Configure Jest in package json

"jest": {
    "testEnvironment": "node",
    "setupFilesAfterEnv": [
      "<rootDir>/tests/config/setup.js"
    ],
    "testMatch": [
      "<rootDir>/tests/controllers/**/*.test.js"
    ]
  },

3. Run tests and see error on power shell

Expected behavior
I expected the result of the test, either passing or failing.

System

• Node.js version: 12.16.1
• NPM version: 6.13.4
• Strapi version: 3.0.0-alpha.13.1
• Database: mysql
• Operating system: Windows 10

[derrickmehaffy]

Strapi version: 3.0.0-alpha.13.1 Strapi alpha is not supported

[TheAnimeSenpai]

Hi @derrickmehaffy ...made a mistake on the version...
strapi version : Strapi v3.0.0-beta.19.5
Error is still the same

[derrickmehaffy]

For reference this issue is about the missing strapi.stop and not about testing (which isn't a bug and should be directed to the "question" media like Stack Overflow/slack)

[qunabu]

https://medium.com/@qunabu/strapi-jest-testing-with-gitlab-ci-82ffe4c5715a maybe this would help.

[lauriejim]

Future guide on testing - #6361