Backfill unit tests for add-on experiment notifications
Backfill unit tests for add-on experiment notifications

chuckharmston/testpilot,6a68/idea-town,fzzzy/testpilot,mozilla/testpilot,mathjazz/testpilot,lmorchard/idea-town-server,flodolo/testpilot,flodolo/testpilot,lmorchard/testpilot,dannycoates/testpilot,lmorchard/testpilot,6a68/idea-town,mozilla/idea-town,mozilla/idea-town-server,mozilla/idea-town,mozilla/testpilot,clouserw/testpilot,lmorchard/idea-town-server,ckprice/testpilot,ckprice/testpilot,lmorchard/idea-town,6a68/testpilot,mathjazz/testpilot,chuckharmston/testpilot,chuckharmston/testpilot,6a68/testpilot,fzzzy/testpilot,flodolo/testpilot,mozilla/testpilot,meandavejustice/testpilot,dannycoates/testpilot,meandavejustice/testpilot,mathjazz/testpilot,mozilla/idea-town,dannycoates/testpilot,flodolo/testpilot,lmorchard/idea-town,lmorchard/idea-town,6a68/idea-town,lmorchard/idea-town-server,mozilla/idea-town-server,fzzzy/testpilot,clouserw/testpilot,mozilla/idea-town-server,mozilla/idea-town-server,mozilla/idea-town,clouserw/testpilot,6a68/idea-town,mozilla/testpilot,6a68/testpilot,lmorchard/testpilot,lmorchard/idea-town-server,ckprice/testpilot,ckprice/testpilot,lmorchard/testpilot,meandavejustice/testpilot,fzzzy/testpilot,chuckharmston/testpilot,clouserw/testpilot,6a68/testpilot,dannycoates/testpilot,mathjazz/testpilot,meandavejustice/testpilot,lmorchard/idea-town