Run cypress tests concurrently.

cyprush.js

/* eslint-disable import/no-extraneous-dependencies */
const path = require('path');
const fs = require('fs');
const glob = require('glob');
const concurrently = require('concurrently');
const { promisify } = require('util');

const rand = `${Math.random()}`.substring(0, 10);
const CYPRESS_TMP_FILE = `./cypress.${rand}.json`;

const cypressArgv = process.argv
  .slice(process.argv.indexOf(__filename) + 1)
  .join(' ');

const removeTmpCypressFile = async () => {
  try {
    await promisify(fs.unlink)(CYPRESS_TMP_FILE);
    // eslint-disable-next-line no-empty
  } catch (e) {}
};

(async () => {
  const cypressConfiguration = JSON.parse(
    await promisify(fs.readFile)(path.join(process.cwd(), './cypress.json'))
  );

  await promisify(fs.writeFile)(
    CYPRESS_TMP_FILE,
    JSON.stringify({
      ...cypressConfiguration,
      testFiles: undefined
    })
  );

  const matchedFiles = glob.sync(cypressConfiguration.testFiles);
  await concurrently(
    matchedFiles.map(
      testFile =>
        `npx cypress ${cypressArgv} -C ${CYPRESS_TMP_FILE} --spec "${testFile}"`
    )
  );
  removeTmpCypressFile();
  process.exit(0);
})().catch(err => {
  removeTmpCypressFile();
  console.error(err); // eslint-disable-line no-console
  process.exit(-1);
});