@appearhere/bloom/components/BtnContainer/BtnContainer.test.js

Appear Here's pattern library and styleguide

import React from 'react';
import ReactDOM from 'react-dom';

import BtnContainer from './BtnContainer';

it('renders without crashing', () => {
  const div = document.createElement('div');
  ReactDOM.render(<BtnContainer>label</BtnContainer>, div);
});