unit test updated for publish_post()
unit test updated for publish_post()

champsupertramp/slack-wordpress,erayalakese/slack-wordpress,josephfusco/slack-wordpress,wormeyman/slack-wordpress,champsupertramp/slack-wordpress,erayalakese/slack-wordpress,erayalakese/slack-wordpress,josephfusco/slack-wordpress,wormeyman/slack-wordpress,Stayallive/slack-wordpress,Stayallive/slack-wordpress,Stayallive/slack-wordpress,josephfusco/slack-wordpress,wormeyman/slack-wordpress,champsupertramp/slack-wordpress