could you add zset support?

[Carl-you]

could you add zset support

[idyedov]

sorted sets are a little harder since there's no simple data structure that we can use that will have the same properties/guarantees. Closest I can think of would be a BiMap from guava library, but it doesn't guarantee the sort order (and we don't want to sort on every call to ZRANGE)

as far as I know they're implemented with skiplists in redis internally, but I don't know of any public library that has an implementation that we could use. Let me know if you have any ideas.

[kshchepanovskyi]

I'm going to implement support for zset with the same time complexity guarantees approximately by the end of next month.

Some details about Redis ZSET Underlying Datastructure: http://biais.org/redis-zset-underlying-datastructure/

[pyloque]

I think redis-mock is only for unittest, performance things can be ignored. So the implementation of skiplist is not nessessary,you can just use hashmap instead.zrange/zrank such operation, you can just tranverse the map to get the result.
if you really do need a skiplist library,python has the same library you can refer.
https://github.com/locationlabs/mockredis/blob/master/mockredis/sortedset.py

for lack of zset implementation, I cannot use mockredis at all in my project. so sad ~