text: const app = require('../../../app');
  const request = require('supertest');
  
  describe('ExchangeRates', () => {
    let currencyCode;
  
    beforeEach(() => {
      currencyCode = 'ltcusd'
    });
  
    describe('/v0/exchange-rates', () => {
      it('responds', (done) => {
        let url = `/v0/exchange-rates/${currencyCode}/current_rate`;
  
        request(app)
          .get(url)
            .expect(200)
            .end(function(err, res) {
              if (err) throw err;
              done();
            });
      });
    });
  });
  