diff --git a/spec/models/ticket/article_spec.rb b/spec/models/ticket/article_spec.rb
index 88303271a..09c8c1263 100644
--- a/spec/models/ticket/article_spec.rb
+++ b/spec/models/ticket/article_spec.rb
@@ -6,88 +6,114 @@ RSpec.describe Ticket::Article, type: :model do
   it_behaves_like 'ApplicationModel'
   it_behaves_like 'CanBeImported'
 
-  describe '.create' do
-    it 'handles NULL byte in subject or body' do
-      expect(create(:ticket_article, subject: "com test 1\u0000", body: "some\u0000message 123"))
-        .to be_persisted
+  describe 'Callbacks, Observers, & Async Transactions' do
+    describe 'NULL byte handling (via ChecksAttributeValuesAndLength concern):' do
+      it 'removes them from subject on creation, if necessary (postgres doesn’t like them)' do
+        expect(create(:ticket_article, subject: "com test 1\u0000"))
+          .to be_persisted
+      end
+
+      it 'removes them from body on creation, if necessary (postgres doesn’t like them)' do
+        expect(create(:ticket_article, body: "some\u0000message 123"))
+          .to be_persisted
+      end
     end
-  end
 
-  describe 'hooks on creation' do
-    context 'of outgoing article' do
-      context 'over Twitter' do
-        subject!(:twitter_article) { create(:twitter_article, sender_name: 'Agent') }
-        let(:channel)              { Channel.find(twitter_article.ticket.preferences[:channel_id]) }
+    describe 'Auto-setting of outgoing Twitter article attributes (via bj jobs):' do
+      subject!(:twitter_article) { create(:twitter_article, sender_name: 'Agent') }
+      let(:channel) { Channel.find(twitter_article.ticket.preferences[:channel_id]) }
 
-        describe 'background job actions' do
-          let(:run_bg_jobs) do
-            lambda do
-              VCR.use_cassette(cassette, match_requests_on: %i[method uri oauth_headers]) do
-                Scheduler.worker(true)
-              end
-            end
+      let(:run_bg_jobs) do
+        lambda do
+          VCR.use_cassette(cassette, match_requests_on: %i[method uri oauth_headers]) do
+            Scheduler.worker(true)
+          end
+        end
+      end
+
+      let(:cassette) { 'models/channel/driver/twitter/article_to_tweet' }
+
+      it 'sets #from to sender’s Twitter handle' do
+        expect(&run_bg_jobs)
+          .to change { twitter_article.reload.from }
+          .to('@example')
+      end
+
+      it 'sets #to to recipient’s Twitter handle' do
+        expect(&run_bg_jobs)
+          .to change { twitter_article.reload.to }
+          .to('') # Tweet in VCR cassette is addressed to no one
+      end
+
+      it 'sets #message_id to tweet ID (https://twitter.com/statuses/<id>)' do
+        expect(&run_bg_jobs)
+          .to change { twitter_article.reload.message_id }
+          .to('1069382411899817990')
+      end
+
+      it 'sets #preferences with tweet metadata' do
+        expect(&run_bg_jobs)
+          .to change { twitter_article.reload.preferences }
+          .to(hash_including('twitter', 'links'))
+
+        expect(twitter_article.preferences[:links].first)
+          .to include(
+            'name'   => 'on Twitter',
+            'target' => '_blank',
+            'url'    => "https://twitter.com/statuses/#{twitter_article.message_id}"
+          )
+      end
+
+      it 'does not change #cc' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.cc }
+      end
+
+      it 'does not change #subject' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.subject }
+      end
+
+      it 'does not change #content_type' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.content_type }
+      end
+
+      it 'does not change #body' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.body }
+      end
+
+      it 'does not change #sender' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.sender }
+      end
+
+      it 'does not change #type' do
+        expect(&run_bg_jobs).not_to change { twitter_article.reload.type }
+      end
+
+      it 'sets appropriate status attributes on the ticket’s channel' do
+        expect(&run_bg_jobs)
+          .to change { channel.reload.attributes }
+          .to hash_including(
+            'status_in'    => nil,
+            'last_log_in'  => nil,
+            'status_out'   => 'ok',
+            'last_log_out' => ''
+          )
+      end
+
+      context 'when the original channel (specified in ticket.preferences) was deleted' do
+        context 'but a new one with the same screen_name exists' do
+          let(:cassette)    { 'models/channel/driver/twitter/article_to_tweet_channel_replace' }
+          let(:new_channel) { create(:twitter_channel) }
+
+          before do
+            channel.destroy
+
+            expect(new_channel.options[:user][:screen_name])
+              .to eq(channel.options[:user][:screen_name])
           end
 
-          let(:cassette) { 'models/channel/driver/twitter/article_to_tweet' }
-
-          it 'sets #from attribute to sender’s Twitter handle' do
+          it 'sets appropriate status attributes on the new channel' do
             expect(&run_bg_jobs)
-              .to change { twitter_article.reload.from }
-              .to('@example')
-          end
-
-          it 'sets #to attribute to recipient’s Twitter handle' do
-            expect(&run_bg_jobs)
-              .to change { twitter_article.reload.to }
-              .to('') # Tweet in VCR cassette is addressed to no one
-          end
-
-          it 'sets #message_id attribute to tweet ID (https://twitter.com/statuses/<id>)' do
-            expect(&run_bg_jobs)
-              .to change { twitter_article.reload.message_id }
-              .to('1069382411899817990')
-          end
-
-          it 'sets #preferences hash with tweet metadata' do
-            expect(&run_bg_jobs)
-              .to change { twitter_article.reload.preferences }
-              .to(hash_including('twitter', 'links'))
-
-            expect(twitter_article.preferences[:links].first)
-              .to include(
-                'name'   => 'on Twitter',
-                'target' => '_blank',
-                'url'    => "https://twitter.com/statuses/#{twitter_article.message_id}"
-              )
-          end
-
-          it 'does not change #cc attribute' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.cc }
-          end
-
-          it 'does not change #subject attribute' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.subject }
-          end
-
-          it 'does not change #content_type attribute' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.content_type }
-          end
-
-          it 'does not change #body attribute' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.body }
-          end
-
-          it 'does not change #sender association' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.sender }
-          end
-
-          it 'does not change #type association' do
-            expect(&run_bg_jobs).not_to change { twitter_article.reload.type }
-          end
-
-          it 'sets appropriate status attributes on the ticket’s channel' do
-            expect(&run_bg_jobs)
-              .to change { channel.reload.attributes }
+              .to change { new_channel.reload.attributes }
               .to hash_including(
                 'status_in'    => nil,
                 'last_log_in'  => nil,
@@ -95,31 +121,6 @@ RSpec.describe Ticket::Article, type: :model do
                 'last_log_out' => ''
               )
           end
-
-          context 'when the original channel (specified in ticket.preferences) was deleted' do
-            context 'but a new one with the same screen_name exists' do
-              let(:cassette)    { 'models/channel/driver/twitter/article_to_tweet_channel_replace' }
-              let(:new_channel) { create(:twitter_channel) }
-
-              before do
-                channel.destroy
-
-                expect(new_channel.options[:user][:screen_name])
-                  .to eq(channel.options[:user][:screen_name])
-              end
-
-              it 'sets appropriate status attributes on the new channel' do
-                expect(&run_bg_jobs)
-                  .to change { new_channel.reload.attributes }
-                  .to hash_including(
-                    'status_in'    => nil,
-                    'last_log_in'  => nil,
-                    'status_out'   => 'ok',
-                    'last_log_out' => ''
-                  )
-              end
-            end
-          end
         end
       end
     end