invoking zcache w/o using a workload

Hi, I was playing around with zcache and fiddling with different compression algorithms. Furthermore, I was integrating some checksum algorithms for cleancache for my own project goals. Unfortunately, I need to run a workload to trigger zcache. Is there a way I can trigger zcache_get/put (specifically clean cache) with a simple unit test (as opposed to running a workload) ? This will greatly reduce my test/build time. I was wondering if there is an existing unit test-suite. Or I could write a simple kernel module to trigger put/get but I was wondering how to go about invoking these operations. My guess is calling cleancache_get/free using a page off (get_free_page) will not invoke zcache. Any suggestions will be useful. Thanks, Asim