New users can only post newuser_max_replies_per_topic times per topic.

spec/components/composer_messages_finder_spec.rb

@@ -10,6 +10,7 @@ describe ComposerMessagesFinder do
 
     it "calls all the message finders" do
       finder.expects(:check_education_message).once
+      finder.expects(:check_new_user_many_replies).once
       finder.expects(:check_avatar_notification).once
       finder.expects(:check_sequential_replies).once
       finder.expects(:check_dominating_topic).once
@@ -56,6 +57,24 @@ describe ComposerMessagesFinder do
         finder.check_education_message.should be_blank
       end
     end
+  end
+
+  context '.check_new_user_many_replies' do
+    let(:user) { Fabricate.build(:user) }
+
+    context 'replying' do
+      let(:finder) { ComposerMessagesFinder.new(user, composerAction: 'reply') }
+
+      it "has no message when `posted_too_much_in_topic?` is false" do
+        user.expects(:posted_too_much_in_topic?).returns(false)
+        finder.check_new_user_many_replies.should be_blank
+      end
+
+      it "has a message when a user has posted too much" do
+        user.expects(:posted_too_much_in_topic?).returns(true)
+        finder.check_new_user_many_replies.should be_present
+      end
+    end
 
   end
 

spec/components/validators/post_validator_spec.rb

@@ -24,6 +24,20 @@ describe Validators::PostValidator do
     end
   end
 
+  context "too_many_posts" do
+    it "should be invalid when the user has posted too much" do
+      post.user.expects(:posted_too_much_in_topic?).returns(true)
+      validator.max_posts_validator(post)
+      expect(post.errors.count).to be > 0
+    end
+
+    it "should be valid when the user hasn't posted too much" do
+      post.user.expects(:posted_too_much_in_topic?).returns(false)
+      validator.max_posts_validator(post)
+      expect(post.errors.count).to be(0)
+    end
+  end
+
   context "invalid post" do
     it "should be invalid" do
       validator.validate(post)