text: /**
   * Copyright 2013-2015, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   *
   * @emails react-core
   */
  
  'use strict';
  
  describe('LocalEventTrapMixin', function() {
    var EventConstants;
    var LocalEventTrapMixin;
    var React;
    var ReactTestUtils;
  
    beforeEach(function() {
      EventConstants = require('EventConstants');
      LocalEventTrapMixin = require('LocalEventTrapMixin');
      React = require('React');
      ReactTestUtils = require('ReactTestUtils');
    });
  
    it('throws when trapping bubbled state on null', function() {
      var BadImage = React.createClass({
        mixins: [LocalEventTrapMixin],
        render: function() {
          return null;
        },
        componentDidMount: function() {
          this.trapBubbledEvent(EventConstants.topLevelTypes.topLoad, 'load');
        },
      });
  
      expect(function() {
        ReactTestUtils.renderIntoDocument(<BadImage />);
      }).toThrow(
        'Invariant Violation: ' +
        'LocalEventTrapMixin.trapBubbledEvent(...): ' +
        'Requires node to be rendered.'
      );
    });
  });
  