anchor.diff:            .then((_) => client.lrange('listId'))
             .then((lrangeResult) => 
                 expect(lrangeResult, equals(['some-string', 'other-string'])))
  -      );
  -      async(
  -          client.lpush('otherListId', ['some-string', 'other-string'])
  +          .then((_) => client.lpush('otherListId', ['some-string', 'other-string']))
             .then((_) => client.lrange('otherListId'))
             .then((lrangeResult) => 
                 expect(lrangeResult, equals(['other-string', 'some-string'])))
  
positive.code:                                                       new ZSetEntry('three', 3) ]);
        var weights = [ 2, 3 ];
        
        async(
            client.zadd('setId', zSet)
            .then((_) => client.zadd('setId2', zSet2)
            .then((_) => client.zinterstore('unionSetId', ['setId', 'setId2'], aggregate: 'MIN')
            .then((zUnionStoreResult) => expect(zUnionStoreResult, equals(2)))))
            );
        
        async(
            client.zadd('setId3', zSet)
            .then((_) => client.zadd('setId4', zSet2)
            .then((_) => client.zinterstore('unionSetId', ['setId3', 'setId4'], weights: weights, aggregate: 'MIN')
            .then((zUnionStoreResult) => expect(zUnionStoreResult, equals(2)))))
            );
        });
      });
    test('SORT', () {
      var alphabeticalList = [ 'some-string', 'other-string'],
          numericalList = [4, 5, 2, 5, 1];
  
negative.code:             expect(zRangeResult.length, equals(2));
              expect(zRangeResult['value'], equals(100));
              expect(zRangeResult['value2'], equals(103));
            }))
            
              
            .then((_) => client.zadd('setId', zSet))
            .then((_) => client.zrangebyscore('setId', max: 105, skip: 1, take:2)
            .then((zRangeResult) {
              expect(zRangeResult.length, equals(2));
              expect(zRangeResult.contains('value2'), isTrue);
              expect(zRangeResult.contains('value5'), isTrue);
            }))
        );
  
      }); 
      
  
      test('ZREMRANGEBYRANK', () {
  