Worker specs coverage increase (#32541)

spec/workers/push_conversation_worker_spec.rb

@@ -6,8 +6,30 @@ RSpec.describe PushConversationWorker do
   let(:worker) { described_class.new }
 
   describe 'perform' do
-    it 'runs without error for missing record' do
-      expect { worker.perform(nil) }.to_not raise_error
+    context 'with missing values' do
+      it 'runs without error' do
+        expect { worker.perform(nil) }
+          .to_not raise_error
+      end
+    end
+
+    context 'with valid records' do
+      let(:account_conversation) { Fabricate :account_conversation }
+
+      before { allow(redis).to receive(:publish) }
+
+      it 'pushes message to timeline' do
+        expect { worker.perform(account_conversation.id) }
+          .to_not raise_error
+
+        expect(redis)
+          .to have_received(:publish)
+          .with(redis_key, anything)
+      end
+
+      def redis_key
+        "timeline:direct:#{account_conversation.account_id}"
+      end
     end
   end
 end