'use strict';
  
  /* global describe it */
  
  global.KOMODO_SDK_NO_LOG_ON_COREAPI = true;
  
  const should = require('should');
  const prefixes = require('../lib/prefixes');
  
  describe('#prefixes', () => {
      describe('#lookup', () => {
          it('should return correct prefix', async () => {
              const lookupResult = await prefixes.lookup('08180000000');
              lookupResult.should.equal('XL');
          });
  
          it('should handle unknown prefix', async () => {
              should.not.exist(await prefixes.lookup());
              should.not.exist(await prefixes.lookup(''));
              should.not.exist(await prefixes.lookup('9'));
          });

  
          it('should handle cache result', async () => {
              const lookupResult = await prefixes.lookup('08180000000');
              await prefixes.lookup('08180000000');
              await prefixes.lookup('08180000000');
              await prefixes.lookup('08180000000');
              await prefixes.lookup('08180000000');
              await prefixes.lookup('08180000000');
              lookupResult.should.equal('XL');
          });

      });
  });