andreybleme.com | Integration tests with Docker

user.integration.test.js

const knex = require('knex')({
  client: 'pg',
  connection: process.env.PG_URL,
});

let pgContainer = await new GenericContainer('postgres')
    .withEnv('POSTGRES_USER', 'test')
    .withEnv('POSTGRES_PASSWORD', 'test')
    .withExposedPorts(5432)

describe('User tests', () => {
    
  beforeAll(async () => {
    /* init container */
    pgContainer = await pgContainer.start();

    /* change environment database URL to point to container URL */
    process.env.PG_URL = `postgres://test:test@localhost:${pgContainer.getMappedPort(5432)}/test`;
    
    /* create database schema in container */
    await knex.migrate.latest();
  });

  afterAll(async () => {
    /* delete schema and data from container */
    await knex.destroy();

    /* stop Postgres contrainer */
    await pgContainer.stop();
  });


  test('User must be created', () => {
    /* test with matchers */
    ... 
  });
});