super-test.js

const request = require('supertest');
const client = request('http://www.mocky.io');

describe('http', () => {
  it('asyn/await 1', async () => {
    await client.post('/v2/5c9c94763600006c56d97175')
      .send({})
      .expect(400);
  });

  it('asyn/await 2', async () => {
    return await client.post('/v2/5c9c94763600006c56d97175')
      .send({})
      .expect(400);
});

  it('asyn/await 3', async () =>
    await client.post('/v2/5c9c94763600006c56d97175')
      .send({})
      .expect(400));
});