describe('Maestro', function() {
  prefixMaestro = ['5018','5020','5038','6304'];
    
  for (let length = 12; length <= 19; length++) { 
    for (let prefix = 0; prefix < prefixMaestro.length; prefix++){
    (function(length, prefix){
      it ('has a prefix of ' + prefixMaestro[prefix]+ ' and a length of ' +length, function(){
        detectNetwork(prefixMaestro[prefix].padEnd(length,'0')).should.equal('Maestro')
      }); 
      })(length, prefix);
    }
  }
});