"await wait" elapses timeout in the simplest case

[anuraags]

• react-testing-library version: @testing-library/react@8.0.1
• react version: react@16.8.1
• node version: node@10.11.0
• npm (or yarn) version: npm@6.9.0

Relevant code or config:

import {wait} from '@testing-library/react';

describe('simple await', ()=> {
  it('returns straight away', async ()=> {
    await wait();
  });
});

What you did:

I was trying to implement an await for an expectation to pass and the test kept failing due to timeout. I whittled the code down in order to find the cause and found that even a simple await wait(); would never return.

What happened:

The jest test would simply timeout without returning

Reproduction:

Problem description:

The problem seems to be with the waitWrapper code in wait.js in the @testing-library/dom library. The asyncWrapper awaits on a promise but the inner code doesn't seem to return the promise:

function waitWrapper(...args) {
  return (0, _config.getConfig)().asyncWrapper(() => wait(...args));
}

Suggested solution:

I was able to solve it by changing the above code to:

function waitWrapper(...args) {
  return (0, _config.getConfig)().asyncWrapper(() => {
    return wait(...args);
  });
}

[alexkrolick]

Can you make a PR to fix this if needed?

Thanks