chore: Change the notification text for mention notification type (#2534)

spec/models/notification_spec.rb

@@ -50,11 +50,32 @@ RSpec.describe Notification do
     end
 
     it 'returns appropriate title suited for the notification type conversation_mention' do
-      message = create(:message, sender: create(:user))
+      message = create(:message, sender: create(:user), content: 'Hey [@John](mention://user/1/john), can you check this ticket?')
       notification = create(:notification, notification_type: 'conversation_mention', primary_actor: message, secondary_actor: message.sender)
 
-      expect(notification.push_message_title).to eq "You have been mentioned in conversation [ID - #{message.conversation.display_id}] \
-by #{message.sender.name}"
+      expect(notification.push_message_title).to eq "[##{message.conversation.display_id}] Hey @John, can you check this ticket?"
+    end
+
+    it 'returns appropriate title suited for the notification type conversation_mention having multiple mentions' do
+      message = create(
+        :message, sender:
+        create(:user),
+                  content: 'Hey [@John](mention://user/1/john), [@Alisha Peter](mention://user/2/alisha) can you check this ticket?'
+      )
+      notification = create(:notification, notification_type: 'conversation_mention', primary_actor: message, secondary_actor: message.sender)
+
+      expect(notification.push_message_title).to eq "[##{message.conversation.display_id}] Hey @John, @Alisha Peter can you check this ticket?"
+    end
+
+    it 'returns appropriate title suited for the notification type conversation_mention if username contains white space' do
+      message = create(
+        :message, sender:
+        create(:user),
+                  content: 'Hey [@John Peter](mention://user/1/john%20K) please check this?'
+      )
+      notification = create(:notification, notification_type: 'conversation_mention', primary_actor: message, secondary_actor: message.sender)
+
+      expect(notification.push_message_title).to eq "[##{message.conversation.display_id}] Hey @John Peter please check this?"
     end
   end
 end