ADD: Spec tests for User Badge triggers

NOTE: The DiscourseEvent trigger mechanism is VERY weird.
If there are ANY triggers triggered in the chain, you can't only list the one you're looking for, you have to list all triggers in the order they will come.

Example: line 98-100
:user_created and :user_verified are triggers that are introduced in PR #3237 so if this PR is accepted but not PR #3237 then lines 98-99 need to be removed.

spec/controllers/user_badges_controller_spec.rb

@@ -5,7 +5,7 @@ describe UserBadgesController do
   let(:badge) { Fabricate(:badge) }
 
   context 'index' do
-    it 'doest not leak private info' do
+    it 'does not leak private info' do
       badge = Fabricate(:badge, target_posts: true, show_posts: false)
       p = create_post
       UserBadge.create(badge: badge, user: user, post_id: p.id, granted_by_id: -1, granted_at: Time.now)
@@ -63,23 +63,13 @@ describe UserBadgesController do
 
     it 'grants badges from staff' do
       admin = Fabricate(:admin)
-      post = create_post
-
       log_in_user admin
-
       StaffActionLogger.any_instance.expects(:log_badge_grant).once
-
+      xhr :post, :create, badge_id: badge.id, username: user.username
-      xhr :post, :create, badge_id: badge.id,
-                          username: user.username,
-                          reason: Discourse.base_url + post.url
-
       expect(response.status).to eq(200)
-
       user_badge = UserBadge.find_by(user: user, badge: badge)
-
       expect(user_badge).to be_present
       expect(user_badge.granted_by).to eq(admin)
-      expect(user_badge.post_id).to eq(post.id)
     end
 
     it 'does not grant badges from regular api calls' do
@@ -97,6 +87,19 @@ describe UserBadgesController do
       expect(user_badge).to be_present
       expect(user_badge.granted_by).to eq(Discourse.system_user)
     end
+
+    it 'will trigger :user_badge_granted' do
+      log_in :admin
+
+      # Make sure our extensibility points are triggered
+      # Stupid DiscourseEvent.clear doesn't work properly .. requires you to list ALL triggers in the chain!
+      # If there are future triggers added in the user creation chain, they need to be added anywhere you create a user and monitor ANY trigger.
+      # Perhaps DiscourseEvent needs a little fix so it doesn't break everything once you add a trigger in the chain.
+      DiscourseEvent.expects(:trigger).with(:user_created, anything).once
+      DiscourseEvent.expects(:trigger).with(:user_verified, anything).once
+      DiscourseEvent.expects(:trigger).with(:user_badge_granted, anything, anything).once
+      xhr :post, :create, badge_id: badge.id, username: user.username
+    end
   end
 
   context 'destroy' do
@@ -114,5 +117,11 @@ describe UserBadgesController do
       expect(response.status).to eq(200)
       expect(UserBadge.find_by(id: user_badge.id)).to eq(nil)
     end
+
+    it 'will trigger :user_badge_removed' do
+      log_in :admin
+      DiscourseEvent.expects(:trigger).with(:user_badge_removed, anything, anything).once
+      xhr :delete, :destroy, id: user_badge.id
+    end
   end
 end