message: Make runTests.js exit non-zero when tests fail
diff: @@ -6,4 +6,6 @@ const pattern = process.argv[2] === 'e2e'
  ? `test${s}e2e${s}.+\\.spec\\.js`
  : `test${s}(?!e2e${s})[^${s}]+${s}.+\\.spec\\.js$`;
  -spawn.sync(path.normalize('./node_modules/.bin/jest'), [pattern], { stdio: 'inherit' });
  +const result = spawn.sync(path.normalize('./node_modules/.bin/jest'), [pattern], { stdio: 'inherit' });
  +
  +process.exit(result.status);
  