add tests for showAllNotes and showAllFilteredNotes
add tests for showAllNotes and showAllFilteredNotes

inspiredtolive/Picky-Notes,inspiredtolive/Picky-Notes,derektliu/Picky-Notes,folksy-squid/Picky-Notes,folksy-squid/Picky-Notes,inspiredtolive/Picky-Notes,folksy-squid/Picky-Notes,derektliu/Picky-Notes,derektliu/Picky-Notes