Added Test Cases
Added Test Cases

Added more test cases in for user.go

There is an issue with GetUserByID() where it is unable to find a record of
the test user. I could not find the issue before this commit, but am going
to continue to look.

LukeShu/periwinkle,LukeShu/periwinkle,LukeShu/periwinkle,LukeShu/periwinkle