Pre-calculate comment counts and activity scores

test/models/bubble_test.rb

@@ -14,8 +14,10 @@ class BubbleTest < ActiveSupport::TestCase
   end
 
   test "boosting" do
-    assert_difference %w[ bubbles(:logo).boost_count Event.count ], +1 do
-      bubbles(:logo).boost!
+    assert_changes "bubbles(:logo).activity_score", +1 do
+      assert_difference %w[ bubbles(:logo).boost_count Event.count ], +1 do
+        bubbles(:logo).boost!
+      end
     end
   end
 
@@ -33,8 +35,8 @@ class BubbleTest < ActiveSupport::TestCase
   end
 
   test "ordering by activity" do
-    bubbles(:layout).update! boost_count: 1_000
-    assert_equal bubbles(:layout, :logo, :shipping, :text), Bubble.ordered_by_activity
+    bubbles(:layout).tap { |b| b.update!(boost_count: 1_000) }.rescore
+    assert_equal bubbles(:layout, :logo, :shipping, :text).pluck(:title), Bubble.ordered_by_activity.pluck(:title)
   end
 
   test "ordering by comments" do

test/models/comment_test.rb

@@ -10,4 +10,18 @@ class CommentTest < ActiveSupport::TestCase
 
     assert_includes Comment.search("something rustic"), message.comment
   end
+
+  test "updating bubble counter" do
+    assert_changes "bubbles(:logo).activity_score" do
+      assert_difference "bubbles(:logo).comments_count", 1 do
+        bubbles(:logo).capture Comment.new(body: "I'd prefer something more rustic")
+      end
+    end
+
+    assert_changes "bubbles(:logo).activity_score" do
+      assert_difference "bubbles(:logo).comments_count", -1 do
+        bubbles(:logo).messages.comments.last.destroy
+      end
+    end
+  end
 end