scala-redis/issues/286 added test case demontrating that ZADD stores java string values properly.

[noahlz]

The new test passes, just trying to reproduce issue on my side. Also, I cleaned up the tests a bit since the tests I added in a previous PR were under "custom serialization"

Test report:

[info] PipelineSpec:
[info] pipeline1
[info] - should do pipelined commands
[info] pipeline1 with publish
[info] - should do pipelined commands
[info] pipeline2
[info] - should do pipelined commands
[info] pipeline3
[info] - should handle errors properly in pipelined commands
[info] pipeline4
[info] - should discard pipelined commands
[info] - should publish without breaking the other commands in the pipeline
[info] pipeline no multi 1
[info] - should execute 100 lpushes in pipeline
[info] pipeline no multi 2
[info] - should do pipelined commands with an exception
[info] pipeline hyperloglog
[info] - should do pipelined commands
[info] hincrbyfloat inside a pipeline
[info] - should succeed with a correct response
[info] incrbyfloat inside a pipeline
[info] - should succeed with a correct response
[info] pipeline with batch submission 1
[info] - should execute all commands in batch
[info] pipeline with batch submission with custom serialization - 1
[info] - should execute all commands in batch
[info] pipeline with batch submission with custom serialization - 2
[info] - should execute all commands in batch
[info] pipeline with batch submission with custom serialization - 3
[info] - should execute all commands in batch
[info] pipelined with batch submission list operations
[info] - can pipeline zadd, followed by an expire, in batch
[info] - should handle values consisting of Kryo serialized string data
[info] - can pipeline zadd when the keys contain spaces, in batch
[info] - can pipeline zadd when the keys contain spaces, followed by an expire, in batch
[info] - can insert values in batch with zadd, and then later fetch them with zrange as they were inserted
[info] pipeline with batch submission for TTL (expire) commands
[info] - should accept setting simple key/value followed by an expiration, in batch
[info] - should accept pushing items on to a list followed by an expiration, in batch
[info] - should accept pushing binary data onto a list followed by an expiration, in batch
[info] Run completed in 4 seconds, 489 milliseconds.
[info] Total number of tests run: 23
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 23, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 14 s, completed Nov 2, 2021 9:44:25 AM