Add a test for verification of future imports
Add a test for verification of future imports

Verification will fail, but can be turned off. #53

lucius-feng/yapf,dmoliveira/yapf,bygloam/yapf,sbc100/yapf,ambv/yapf,sbc100/yapf,hayd/yapf,google/yapf,jamesblunt/yapf,nikolamilosevic86/yapf,abduld/yapf,wklken/yapf,google/yapf,thurday/yapf,elviswf/yapf