Jasmine test for React gives error and doesn't run tests

I have just started coding with React and I've made my first page, now I want to add a test for it. I'm using Jasmine and karma for my test. When I try and run the test, I get the error:

TypeError: this.props.data is undefined

I've searched the web and I can't find anything, so any help would be really appreciated. You can see my full project on my github repo http://ift.tt/1Ljwtcw Thanks!

My test file looks like this:

var React = require('react/addons');
var Story = require('../../app/js/components/story.jsx');
var TestUtils = React.addons.TestUtils;
var testUtilsAdditions = require('react-testutils-additions');

  describe('Story component', function () {
    var component;

afterEach(function () {
  // if (component && testUtilsAdditions.isCompositeComponent(component) && component.isMounted()) {
  //   React.unmountComponentAtNode(component.getDOMNode().parent);
  // }
});

beforeEach(function () {
  component = TestUtils.renderIntoDocument(React.createElement(Story));
  component.props.data.storyTitle = 'front end test title';
  component.props.data.author = 'front end author';
  component.props.data.storyText = 'front end story text';
  console.log('LLLLLLLLL', component);
});

it('should display a story', function () {
  expect(component.props.data).toBeDefined();
  expect(component.props.data.storyTitle).toBeDefined();
  expect(component.props.data.storyTitle).toBe('front end test title');
  expect(component.props.data.author).toBe('front end author');
  expect(component.props.data.storyText).toBe('front end story text')
});

});