Add more unit tests for sqlite db
Add more unit tests for sqlite db

jmlong1027/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner,MITRECND/multiscanner,MITRECND/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner,awest1339/multiscanner,awest1339/multiscanner,jmlong1027/multiscanner,mitre/multiscanner,mitre/multiscanner,mitre/multiscanner