Add tests

spec/components/topic_view_spec.rb

@@ -35,6 +35,11 @@ describe TopicView do
       tv = TopicView.new(topic.id, coding_horror, slow_platform: true)
       expect(tv.chunk_size).to eq(TopicView.slow_chunk_size)
     end
+
+    it "returns `print_chunk_size` when print param is true" do
+      tv = TopicView.new(topic.id, coding_horror, print: true)
+      expect(tv.chunk_size).to eq(TopicView.print_chunk_size)
+    end
   end
 
   context "with a few sample posts" do

spec/controllers/application_controller_spec.rb

@@ -84,6 +84,28 @@ describe TopicsController do
 
   end
 
+  describe "print" do
+    render_views
+
+    context "when the SiteSetting is enabled" do
+      before do
+        SiteSetting.stubs(:max_prints_per_hour_per_user).returns(10)
+      end
+
+      it "uses the application layout when there's no param" do
+        get :show, topic_id: topic.id, slug: topic.slug
+        expect(response).to render_template(layout: 'application')
+        assert_select "meta[name=fragment]", true, "it has the meta tag"
+      end
+
+      it "uses the crawler layout when there's an print param" do
+        get :show, topic_id: topic.id, slug: topic.slug, print: 'true'
+        expect(response).to render_template(layout: 'crawler')
+        assert_select "meta[name=fragment]", false, "it doesn't have the meta tag"
+      end
+    end
+  end
+
   describe 'clear_notifications' do
     it 'correctly clears notifications if specified via cookie' do
       notification = Fabricate(:notification)

spec/controllers/topics_controller_spec.rb

@@ -747,6 +747,22 @@ describe TopicsController do
       expect(IncomingLink.count).to eq(1)
     end
 
+    it "doesn't renders the print view by default" do
+      user = Fabricate(:user)
+      get :show, topic_id: topic.id, slug: topic.slug, print: true
+
+      expect(response).to be_forbidden
+    end
+
+    it 'renders the print view when enabled' do
+      SiteSetting.max_prints_per_hour_per_user = 10
+
+      user = Fabricate(:user)
+      get :show, topic_id: topic.id, slug: topic.slug, print: true
+
+      expect(response).to be_successful
+    end
+
     it 'records redirects' do
       @request.env['HTTP_REFERER'] = 'http://twitter.com'
       get :show, { id: topic.id }