text: var
      chai = require('chai'),
      assert = chai.assert,
      cassier = require('../src/cassier');
  
  chai.should();
  
  describe('Cassier currency module', function () {
      it('Should return USD currency', function () {
          var usd = cassier.currencyInfo('USD');
          usd.should.have.property('code', 'USD');
          usd.should.have.property('symbol', 'US$');
          usd.should.have.property('symbol_native', '$')
      });
  
      it('Should return null because currency XXX does not exist', function () {
          assert(cassier.currencyInfo('XXX') === null, "Not null");
      });
  });
  