Created
April 2, 2019 07:55
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Unit testing example 07
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| import React from 'react'; | |
| import App from './App'; | |
| import { shallow } from 'enzyme' | |
| // 1. Test suite | |
| describe("[UNIT] Testing the App component", () => { | |
| let wrapper | |
| // 2. A Jest setup helper function | |
| beforeEach(() => { | |
| // 3. Enzyme's shallow rendering | |
| wrapper = shallow(<App/>) | |
| }) | |
| describe("Component validation", () => { | |
| // 4. Our unit test, checking if the initial value is 0 | |
| it('displays 0 as a default value', () => { | |
| expect(wrapper.find("h1").text()).toContain("0") | |
| }) | |
| }) | |
| }) |
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