$ npm test

> example@1.0.0 test /home/user/project
> jest

 PASS  src/__tests__/WithErrorExample.test.jsx
  Example
    ✓ Test (108ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        2.032s
Ran all test suites matching "Example".
  console.error node_modules/fbjs/lib/warning.js:36
    Warning: render(): Rendering components directly into document.body is discouraged, since its children are often manipulated by third-party scripts and browser extensions. This may lead to subtle reconciliation issues. Try rendering into a container element created for your app.