[chore]: Adding tests to notification marshalling#238

MovieStoreGuy merged 2 commits intosignalfx:mastersignalfx/signalfx-go:masterfrom

MovieStoreGuy:msg/none-add-tests-to-notificationsMovieStoreGuy/signalfx-go:msg/none-add-tests-to-notificationsCopy head branch name to clipboard