Enhance wercker.yml to run tests.
Enhance wercker.yml to run tests.

ProgrammingDaisukiClub/WPCS2,ProgrammingDaisukiClub/WPCS2,ProgrammingDaisukiClub/WPCS2,ProgrammingDaisukiClub/WPCS2,ProgrammingDaisukiClub/WPCS2