text: import { expect } from 'chai';
  import jsdom from 'mocha-jsdom';
  import { SupportMap } from './checkSupport';
  import { PASSIVE, CAPTURE, ONCE } from './constants';
  
  describe(`${PASSIVE.toUpperCase()}`, () => {
      jsdom();
  
      it('should not be available and false in old browsers', () => {
          expect(SupportMap[PASSIVE]).to.equal(false);
      });
  });
  
  describe(`${CAPTURE.toUpperCase()}`, () => {
      jsdom();
  
      it('should not be available and false in old browsers', () => {
          expect(SupportMap[CAPTURE]).to.equal(false);
      });
  });
  
  describe(`${ONCE.toUpperCase()}`, () => {
      jsdom();
  
      it('should not be available and false in old browsers', () => {
          expect(SupportMap[ONCE]).to.equal(false);
      });
  });
  
  