* All callers are calling it this way and it breaks
hhvm when declared statically and called dynamically.
Change-Id: I894e615fd828615384aa8457a16a759c8aa416ef
Created a DatabaseTestHelper class, which extends DatabaseBase and
implements STUBs for the interface methods and abstract methods
Change-Id: I9965b3604e78b2722077a35a7b4ce62a5bcb370e