Blogpost: Easy integration testing of GraphQL with Jest

shopItems.spec.ts

import * as util from 'util';
import * as rp from 'request-promise';
import { exec } from 'child_process';

const pExec = util.promisify(exec);

const API = 'http://localhost:4466/';
const CMD_SEED_DATABASE = `${__dirname}/../seed.sh`;

describe('Getting shop items', () => {
    beforeAll(async () => {
        await pExec(CMD_SEED_DATABASE);
    });

    it('Retrieves the shop items in default order', async () => {
        const query = `
            query {
                shopItems {
                    name
                    category
                    size
                }
            }
        `;

        const response = await rp({method: 'POST', uri: API, body: {query}, json: true});
        expect(response).toMatchSnapshot();
    });
});