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Dec 11th, 2019
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  1. // __tests__/fetch.test.js
  2. import React from 'react'
  3. import { render, fireEvent, waitForElement } from '@testing-library/react'
  4. import '@testing-library/jest-dom/extend-expect'
  5. import {MyCoolComponent as Sut} from './my-cool-component'
  6.  
  7. test('loads and displays greeting', () => {
  8.   const rendered = render(<Sut />)
  9.  
  10.   expect(rendered.queryByText('Hello from react 0')).toBeInTheDocument();
  11. })
  12.  
  13. test('clicking increments counter', () => {
  14.   const rendered = render(<Sut />)
  15.  
  16.   fireEvent.click(rendered.queryByText('Hello from react 0'));
  17.   expect(rendered.queryByText('Hello from react 1')).toBeInTheDocument();
  18. })
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