code: function consoleReporter(reports, options = {}) {
    var hide = options.hide || {};
    (function _consoleReporter(reports) {
      reports.forEach(
        ({children, desc, status, counts, time, code, error}) => {
          let countStr = makeCounts(counts);
          let color    = statusInfo[status].color;
          let colorStr = `color: ${color}`;
          if (children) {
            let msg = desc;
            let collapse = hide.children || hide.passed && status === 'pass';
            if (!hide.counts) { msg = `${msg} (${countStr})`; }
            console[collapse ? 'groupCollapsed' : 'group']('%c' + msg, colorStr);
            _consoleReporter(children);
            console.groupEnd();
          } else {
            if (error) console.log('%c %s (%O)', colorStr, desc, error);
            else console.log('%c %s', colorStr, desc);
          }
        }
      );
    })(reports);
  }
docs: Console reporter, which reports results on the console.