new_contents: var path = require('path')
  
  var createPattern = function (path) {
    return {pattern: path, included: true, served: true, watched: false}
  }
  
  var initPowerAssert = function (files) {
    files.unshift(createPattern(path.resolve(require.resolve('power-assert'), '../build/power-assert.js')))
    files.unshift(createPattern(path.join(__dirname, 'adapter.js')))
  }
  
  initPowerAssert.$inject = ['config.files']
  
  module.exports = {
    'framework:power-assert': ['factory', initPowerAssert]
  }
  
subject: add main file