text: import { useContext } from 'react';
  import { renderHook } from '@testing-library/react-hooks';
  import FileBase64Cache from '@18f/identity-document-capture/context/file-base64-cache';
  
  describe('document-capture/context/file-base64-cache', () => {
    it('defaults to WeakMap', () => {
      const { result } = renderHook(() => useContext(FileBase64Cache));
  
      expect(result.current).to.be.instanceof(WeakMap);
    });
  });
  