1 files changed, 15 insertions, 0 deletions
diff --git a/test/unit/message_test.rb b/test/unit/message_test.rb
index 8be6de31a..00b7351ee 100644
--- a/test/unit/message_test.rb
+++ b/test/unit/message_test.rb
@@ -133,6 +133,21 @@ class MessageTest < ActiveSupport::TestCase
     assert_equal messages_count - 1, board.messages_count
   end
 
+  def test_destroying_last_reply_should_update_topic_last_reply_id
+    topic = Message.find(4)
+    assert_equal 6, topic.last_reply_id
+
+    assert_difference 'Message.count', -1 do
+      Message.find(6).destroy
+    end
+    assert_equal 5, topic.reload.last_reply_id
+
+    assert_difference 'Message.count', -1 do
+      Message.find(5).destroy
+    end
+    assert_nil topic.reload.last_reply_id
+  end
+
   def test_editable_by
     message = Message.find(6)
     author = message.author