Question

171

Jest + supertest in NodeJS, async/await

rated 0 times [ 173] [ 2] / answers: 1 / hits: 16448 / 6 Years ago, wed, may 2, 2018, 12:00:00

I try to test my api with Jest. I want more abstraction, so i created this function:

const tokensConfig = config.get('test.tokens');



function testIt(method = 'get', url = '/', statuses = [], body = {}) {

      const testNames = ['unauthorized', 'user', 'admin'];

      const tokens = [null, tokensConfig.user, tokensConfig.admin];

    

      for (let i = 0; i < testNames.length; i++) {

        test(testNames[i], async () => {

          const response = await request(app)

            [method](url)

            .set('Accept', 'application/json')

            .set('Authorization', tokens[i])

            .send(body);

          expect(response.statusCode).toBe(statuses[i]);

        });

      }

    }

In test.js file i run:

const config  = require('config');

const request = require('supertest');

const testIt  = require('./testIt');

const app     = require('../app');



// It's work

describe('get user by email', () => {

    testIt('get', '/users/get-by-email/user@test', [401, 403, 200]);

  });

  

// It's not work  

describe('delete user', async () => {

    const userByEmail = await request(app)

      .get('/users/get-by-email/user@test')

      .set('Accept', 'application/json')

      .set('Authorization', config.get('test.tokens.admin'));



    testIt('delete', `/users/${userByEmail._id}`, [401, 403, 200]);

  });

Trouble in async/await - testIt running before request user.

If i move test (or it) to describe block from function testIt and create request user inside test, it will work. But i want more abstraction (test block very big for many tests)

How fix it?

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clarkulisesa

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answered 6 Years ago mercedez · Accepted Answer

As a result, i had to move the test to test.js:

// test.js



it('delete user', async () => {

    const userByEmail = await request(app)

      .get('/users/get-by-email/user@test')

      .set('Accept', 'application/json')

      .set('Authorization', config.get('test.tokens.admin'));



    const result = await testIt('delete', `/users/${userByEmail.body._id}`);

    expect(result).toEqual([401, 403, 401, 200]);

  });

// testIt.js



const config  = require('config');

const request = require('supertest');

const app     = require('../app');



const tokensConfig = config.get('test.tokens');



async function testIt(method = 'get', url = '/', body = {}) {

  const testNames = ['unauthorized', 'user', 'adminTokenExpired', 'admin'];

  const tokens = [null, tokensConfig.userTokenInfinity, tokensConfig.adminTokenExpired, tokensConfig.adminTokenInfinity];

  let result = [];



  for (let i = 0; i < testNames.length; i++) {

    const response = await request(app)

      [method](url)

      .set('Accept', 'application/json')

      .set('Authorization', tokens[i])

      .send(body);



    result.push(response.statusCode);

  }



  return result;

}



module.exports = testIt;

But i had to confine myself to one answer to all roles instead individual answer to every role, because i want less code.