text: 
  const assert = require('assert');
  const {tick, equalClass} = require('../lib');
  
  
  async function main(build) {
      const {document, app} = await build();
  
      await tick();
  
      equalClass('bold c1 red test', document.body.firstElementChild.className);
  
      const styles = document.querySelectorAll('style');
      assert.strictEqual(1, styles.length);
      assert.strictEqual('.bold.c1{font-weight:bold}.red.c1{color:red}', styles[0].innerHTML);
  
  }
  
  module.exports = {main};
  