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Tests for prop updates

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Alexander Ryzhikov 2016-09-11 21:25:07 +03:00 committed by Norbert de Langen
parent 09162b5b77
commit 7e84ed9848
1 changed files with 18 additions and 0 deletions
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18
addons/background/src/__tests__/index.tsx
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@ -56,4 +56,22 @@ describe("Background Decorator", () => {
expect(spy).toBeCalled();
});
it("should update story on change", () => {
const SpiedChannel = new EventEmitter();
const nextStory = jest.fn(() => <p>I am next story!</p>);
const backgroundDecorator = shallow(<BackgroundDecorator story={testStory} channel={SpiedChannel} />);
backgroundDecorator.setProps({ story: nextStory });
expect(nextStory).toBeCalled();
});
it("should not update story on other props change", () => {
const SpiedChannel = new EventEmitter();
const story = jest.fn(() => <p>I am the only one!</p>);
const backgroundDecorator = shallow(<BackgroundDecorator story={story} channel={SpiedChannel} />);
backgroundDecorator.setProps({ randomProp: true });
expect(story.mock.calls.length).toBe(1);
});
});