message: test: test positional args
diff: @@ -184,6 +184,7 @@ describe('integration tests', () => {
  expect(existsSync(join(PKG_ROOT, 'cjs/index.js'))).toBe(true);
  await exec('yarn test', { cwd: PKG_ROOT });
  + await exec('yarn test index.test', { cwd: PKG_ROOT });
  await exec(['yarn lint', ...lintArgs].join(' '), { cwd: PKG_ROOT });
  } catch (e) {
  // We are not capturing and printing stdout above, where TSC prints its errors. This makes sure it's printed.
  