Unit test for cache filtering, to secure the recent bug fix I did.
Unit test for cache filtering, to secure the recent bug fix I did.

Change-Id: Ie5068b45520b6c82af41062d97ec65d006b4b3ba

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core