Long time ago (0.7) we had ByteBufferMessageSet as a part of api and it's allowed us to control compression. Times goes on and now PrimitiveApiTest have methods that promise to test api with compression enabled, but in fact they don't. Moreover this methods almost entirely copy their counterparts without compression. In particular I'm talking about `testProduceAndMultiFetch` / `testProduceAndMultiFetchWithCompression` and `testMultiProduce`/`testMultiProduceWithCompression` pairs.
The fix could be super-easy and soundness – just parameterize methods with producer of each type (with/without compression). Sadly but it isn't feasible for junit3, so straightforward solution is to do the same ugly thing as `testDefaultEncoderProducerAndFetchWithCompression` method does – forget about class-wide producer and roll-out it's own. I will attach path if that is a problem indeed.