Iteration C4.

test/controllers/store_controller_test.rb

@@ -4,6 +4,10 @@ class StoreControllerTest < ActionDispatch::IntegrationTest
   test "should get index" do
     get store_index_url
     assert_response :success
+    assert_select '#columns #side a', minimum: 2
+    assert_select '#main .entry', 3
+    assert_select 'h3', 'Programming Ruby 1.9'
+    assert_select '.price', /\$[,\d]+\.\d\d/
   end
-
+  
 end