Function waitForStartup

spec/CLI.spec.js:217–228

(cp, requiredOutput)

  let childProcess;

  function waitForStartup(cp, requiredOutput) {
    return new Promise((resolve, reject) => {
      const aggregated = [];
      cp.stdout.on('data', data => {
        aggregated.push(data.toString());
        if (requiredOutput.every(r => aggregated.some(a => a.includes(r)))) {
          resolve();
        }
      });
      cp.on('error', reject);
    });
  }

  afterEach(done => {
    if (childProcess) {