No extend-expect type definitions

[mbaranovski]

• react-testing-library version: 1.9.3
• node version: 9.2.1

What you did:
Created fresh project from CRA + typescript scripts and then wrote a simple test

test('renders App without crashing', () => {

  const { queryByTestId } = render(<App/>);

  expect(queryByTestId('app-hoc')).toBeInTheDOM();
});

What happened:
The test is passing but the project does not build. Throwing this error:

Property 'toBeInTheDOM' does not exist on type 'Matchers'.

Problem description:
Typescript won't allow building project when we are using property which does not exist on some particular type (Matchers in this case)

Suggested solution:
Extend jest expect typings with a new types definition for methods from extend-expect.js

[antsmartian]

Hello, did you try this : https://github.com/kentcdodds/react-testing-library/blob/master/README.md#custom-jest-matchers-typescript

[mbaranovski]

Hi, I've just noticed that in the README file...
It works thanks. I'll close the issue.