FIX: only send email notifications for regular and whisper type of posts

app/models/user_email_observer.rb

@@ -42,8 +42,12 @@ class UserEmailObserver < ActiveRecord::Observer
 
     private
 
+    EMAILABLE_POST_TYPES ||= Set.new [Post.types[:regular], Post.types[:whisper]]
+
     def enqueue(type, delay=default_delay)
-      return unless notification.user.email_direct? && (notification.user.active? || notification.user.staged?)
+      return unless notification.user.email_direct?
+      return unless notification.user.active? || notification.user.staged?
+      return unless EMAILABLE_POST_TYPES.include? notification.post.try(:post_type)
 
       Jobs.enqueue_in(delay,
                       :user_email,
@@ -53,7 +57,9 @@ class UserEmailObserver < ActiveRecord::Observer
     end
 
     def enqueue_private(type, delay=default_delay)
-      return unless notification.user.email_private_messages? && (notification.user.active? || notification.user.staged?)
+      return unless notification.user.email_private_messages?
+      return unless notification.user.active? || notification.user.staged?
+      return unless EMAILABLE_POST_TYPES.include? notification.post.try(:post_type)
 
       Jobs.enqueue_in(delay,
                       :user_email,

spec/models/user_email_observer_spec.rb

@@ -2,10 +2,13 @@ require 'rails_helper'
 
 describe UserEmailObserver do
 
+  let(:topic) { Fabricate(:topic) }
+  let(:post) { Fabricate(:post, topic: topic) }
+
   # something is off with fabricator
   def create_notification(type, user=nil)
     user ||= Fabricate(:user)
-    Notification.create(data: '', user: user, notification_type: type)
+    Notification.create(data: '', user: user, notification_type: type, topic: topic, post_number: post.post_number)
   end
 
   shared_examples "enqueue" do
@@ -32,6 +35,16 @@ describe UserEmailObserver do
 
     end
 
+    context "small action" do
+
+      it "doesn't enqueue a job" do
+        Post.any_instance.expects(:post_type).returns(Post.types[:small_action])
+        Jobs.expects(:enqueue_in).with(delay, :user_email, has_entry(type: type)).never
+        UserEmailObserver.send(:new).after_commit(notification)
+      end
+
+    end
+
   end
 
   shared_examples "enqueue_public" do