it-test-function

it.js

(function(){
  'use strict';
  
  /**
   * test function
   * @param {string} desc
   * @param {function} fn
   */
  function it(desc, fn) {
    try {
      fn();
      console.log('\x1b[32m%s\x1b[0m', '\u2714 ' + desc);
    } catch (error) {
      console.log('\n');
      console.log('\x1b[31m%s\x1b[0m', '\u2718 ' + desc);
      console.error(error);
    }
  }
})();