Created
July 6, 2021 06:00
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Counter spec file https://medium.com/@manojdarshana/reactjs-testing-with-jest-81bb17dd6c65
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| import { render, screen } from '@testing-library/react'; | |
| import userEvent from '@testing-library/user-event'; | |
| import Counter from './Counter'; | |
| const setUp = () => render(<Counter />); | |
| beforeEach(() => { | |
| setUp() | |
| }) | |
| describe('test counter app', () => { | |
| it('check h1 available', () => { | |
| const linkElement = screen.getByText(/Current count is/i); | |
| expect(linkElement).toBeInTheDocument(); | |
| }); | |
| it('check button available', () => { | |
| const linkElement = screen.getByText(/Increment/i); | |
| expect(linkElement).toBeInTheDocument(); | |
| }); | |
| it('check increment', () => { | |
| userEvent.click(screen.getByText(/Increment/i)); | |
| const lable = screen.getByTestId(/counterID/i); | |
| expect(lable.textContent).toBe("1"); | |
| }); | |
| }); |
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