#414

backend/spec/services/youtube/sync_spec.rb

@@ -42,6 +42,41 @@ RSpec.describe Youtube::Sync do
   end
 
   describe '#sync!' do
+    it 'groups created and updated post histories into one sync event' do
+      allow(PostVersionRecorder).to receive(:record!).and_call_original
+      allow(PostVersionRecorder).to receive(:ensure_snapshot!).and_call_original
+      existing = create(:post, url: 'https://youtu.be/video-1', title: 'old title')
+      allow(sync).to receive(:query_terms).and_return([])
+      allow(sync).to receive(:playlist_ids).and_return(['PL123'])
+      allow(client).to receive(:playlist_items).with(playlist_id: 'PL123', page_token: nil)
+          .and_return('items' => [
+              { 'contentDetails' => { 'videoId' => 'video-1' } },
+              { 'contentDetails' => { 'videoId' => 'video-2' } }])
+      allow(client).to receive(:videos).with(['video-1', 'video-2'])
+          .and_return('items' => [
+              youtube_video_item(id: 'video-1', title: 'updated', channel_id: 'UC_NONE'),
+              youtube_video_item(id: 'video-2', title: 'created', channel_id: 'UC_NONE')])
+      previous_post_ids = PostVersion.pluck(:id)
+      previous_tag_ids = TagVersion.pluck(:id)
+
+      expect { sync.sync! }.to change { event_rows.length }.by(1)
+
+      event = event_rows.last
+      expect(event).to include('event_type' => 'posts.sync', 'created_by_user_id' => nil)
+      versions = PostVersion.where.not(id: previous_post_ids)
+      created = Post.find_by!(url: 'https://www.youtube.com/watch?v=video-2')
+      expect(versions.pluck(:post_id).uniq).to contain_exactly(existing.id, created.id)
+      expect(versions.pluck(:event_type)).to include('create', 'update')
+      expect(versions.pluck(:event_id).uniq).to eq([event.fetch('id')])
+      tag_versions = TagVersion.where.not(id: previous_tag_ids)
+      expect(tag_versions).not_to be_empty
+      expect(tag_versions.pluck(:event_id).uniq).to eq([event.fetch('id')])
+
+      events = event_rows
+      expect { sync.sync! }.not_to change(PostVersion, :count)
+      expect(event_rows).to eq(events)
+    end
+
     it 'returns without fetching video details when no video ids are discovered' do
       allow(sync).to receive(:query_terms).and_return([])
       allow(sync).to receive(:playlist_ids).and_return([])