React 0.14.7: `<option value="">empty</option>` emits empty string on change
http://jsbin.com/pisita/10/edit?html,js,console,output
React 15.0.0-rc.1`<option value="">empty</option>` emits string with value "empty" on change
http://jsbin.com/bemaze/12/edit?html,js,console,output
This is because React 15.0.0-rc.1 cuts off `value=""` from option tag

}
  beforeEach(function() {
    jest.resetModuleRegistry();
    EventConstants = require('EventConstants');
    React = require('React');
    ReactDOM = require('ReactDOM');
    ReactDOMFeatureFlags = require('ReactDOMFeatureFlags');
    ReactLink = require('ReactLink');
    ReactTestUtils = require('ReactTestUtils');
    inputValueTracking = require('inputValueTracking');
    spyOn(console, 'error');
  });
  it('should display `defaultValue` of number 0', function() {
    var stub = <input type="text" defaultValue={0} />;
    stub = ReactTestUtils.renderIntoDocument(stub);
    var node = ReactDOM.findDOMNode(stub);
    expect(node.value).toBe('0');
  });
  it('should display "true" for `defaultValue` of `true`', function() {
    var stub = <input type="text" defaultValue={true} />;
    stub = ReactTestUtils.renderIntoDocument(stub);
    var node = ReactDOM.findDOMNode(stub);
    expect(node.value).toBe('true');
  });
  it('should display "false" for `defaultValue` of `false`', function() {
    var stub = <input type="text" defaultValue={false} />;
    stub = ReactTestUtils.renderIntoDocument(stub);
    var node = ReactDOM.findDOMNode(stub);
    expect(node.value).toBe('false');
  });