#663814 by dereine, dww, and chx: Add helper function for testing session implementations.
#663814 by dereine, dww, and chx: Add helper function for testing session implementations.

edutrul/social-web,OccupyWallStreet/streetnet,edutrul/social-web,joshkoenig/golden-god-demo,OccupyWallStreet/streetnet,lincgr/Prueba,edutrul/social-web,joshkoenig/golden-god-demo,brainhell/drupalglass,joshkoenig/golden-god-demo,OccupyWallStreet/streetnet,brainhell/drupalglass,joshkoenig/golden-god-demo,joshkoenig/golden-god-demo,brainhell/drupalglass,lincgr/Prueba,lincgr/Prueba,edutrul/social-web,rmcveigh/frontend-dev,joshkoenig/golden-god-demo,OccupyWallStreet/streetnet,brainhell/drupalglass,edutrul/social-web,joshkoenig/golden-god-demo,lincgr/Prueba,rmcveigh/frontend-dev,rmcveigh/frontend-dev,brainhell/drupalglass