text: const { ether } = require('../ether');
  
  const { BigNumber } = require('../setup');
  
  describe('ether', function () {
    it('returns a BigNumber', function () {
      ether(1, 'ether').should.be.bignumber.equal(new BigNumber(1000000000000000000));
    });
  
    it('works with negative amounts', function () {
      ether(-1, 'ether').should.be.bignumber.equal(new BigNumber(-1000000000000000000));
    });
  });
  