Fix CacheCommandTest
Fix CacheCommandTest

Summary:
CacheCommandTest didn't check console output and did write unnecessary
text to test console object.

Test Plan: This is a test.

Reviewed By: aiked

fbshipit-source-id: 99650c7

Addepar/buck,ilya-klyuchnikov/buck,romanoid/buck,LegNeato/buck,LegNeato/buck,rmaz/buck,Addepar/buck,LegNeato/buck,brettwooldridge/buck,rmaz/buck,brettwooldridge/buck,romanoid/buck,LegNeato/buck,Addepar/buck,kageiit/buck,facebook/buck,Addepar/buck,rmaz/buck,JoelMarcey/buck,brettwooldridge/buck,clonetwin26/buck,clonetwin26/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,zpao/buck,ilya-klyuchnikov/buck,Addepar/buck,ilya-klyuchnikov/buck,rmaz/buck,rmaz/buck,Addepar/buck,brettwooldridge/buck,JoelMarcey/buck,romanoid/buck,clonetwin26/buck,brettwooldridge/buck,JoelMarcey/buck,JoelMarcey/buck,JoelMarcey/buck,clonetwin26/buck,zpao/buck,LegNeato/buck,clonetwin26/buck,LegNeato/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,facebook/buck,LegNeato/buck,rmaz/buck,romanoid/buck,LegNeato/buck,facebook/buck,JoelMarcey/buck,nguyentruongtho/buck,kageiit/buck,SeleniumHQ/buck,clonetwin26/buck,brettwooldridge/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,rmaz/buck,brettwooldridge/buck,LegNeato/buck,shs96c/buck,zpao/buck,SeleniumHQ/buck,zpao/buck,SeleniumHQ/buck,shs96c/buck,shs96c/buck,romanoid/buck,facebook/buck,JoelMarcey/buck,Addepar/buck,nguyentruongtho/buck,romanoid/buck,nguyentruongtho/buck,rmaz/buck,brettwooldridge/buck,LegNeato/buck,romanoid/buck,zpao/buck,Addepar/buck,brettwooldridge/buck,shs96c/buck,clonetwin26/buck,ilya-klyuchnikov/buck,clonetwin26/buck,Addepar/buck,brettwooldridge/buck,SeleniumHQ/buck,SeleniumHQ/buck,nguyentruongtho/buck,clonetwin26/buck,rmaz/buck,clonetwin26/buck,brettwooldridge/buck,LegNeato/buck,LegNeato/buck,rmaz/buck,kageiit/buck,romanoid/buck,zpao/buck,facebook/buck,rmaz/buck,SeleniumHQ/buck,nguyentruongtho/buck,ilya-klyuchnikov/buck,kageiit/buck,shs96c/buck,romanoid/buck,romanoid/buck,clonetwin26/buck,romanoid/buck,shs96c/buck,romanoid/buck,LegNeato/buck,kageiit/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,zpao/buck,nguyentruongtho/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,brettwooldridge/buck,Addepar/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,rmaz/buck,shs96c/buck,brettwooldridge/buck,JoelMarcey/buck,clonetwin26/buck,clonetwin26/buck,JoelMarcey/buck,facebook/buck,ilya-klyuchnikov/buck,Addepar/buck,Addepar/buck,shs96c/buck,shs96c/buck,JoelMarcey/buck,romanoid/buck,rmaz/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,shs96c/buck,shs96c/buck,kageiit/buck,SeleniumHQ/buck,Addepar/buck,facebook/buck,JoelMarcey/buck,shs96c/buck,shs96c/buck,JoelMarcey/buck,kageiit/buck,nguyentruongtho/buck