diff --git a/spec/controllers/api/v0/products_controller_spec.rb b/spec/controllers/api/v0/products_controller_spec.rb
index 8af0985e48..e55152cd19 100644
--- a/spec/controllers/api/v0/products_controller_spec.rb
+++ b/spec/controllers/api/v0/products_controller_spec.rb
@@ -164,6 +164,7 @@ describe Api::V0::ProductsController, type: :controller do
 
     context 'as an enterprise user' do
       let(:current_api_user) { supplier_enterprise_user(supplier) }
+      let!(:variant) { create(:variant, product_id: product.id) }
 
       it 'responds with a successful response' do
         spree_post :clone, product_id: product.id, format: :json
@@ -183,6 +184,27 @@ describe Api::V0::ProductsController, type: :controller do
         expect(response.status).to eq(201)
         expect(json_response['name']).to eq("COPY OF #{product_with_image.name}")
       end
+
+      # test cases related to bug #660: product duplication clones master variant
+      
+      # stock info - clone is set to zero
+      it '(does not) clone the stock info of the product' do
+        spree_post :clone, product_id: product.id, format: :json
+        expect(json_response['on_hand']).to eq(0)
+      end
+
+      # variants: only the master variant of the product is cloned
+      it '(does not) clone variants from a product with several variants' do
+        spree_post :clone, product_id: product.id, format: :json
+        expect(Spree::Product.second.variants.count).not_to eq Spree::Product.first.variants.count
+      end
+
+      #price info: it does not consider price changes; it considers the price set upon product creation
+      it '(does not) clone price which was updated' do
+        product.update_attribute(:price, 2.22)
+        spree_post :clone, product_id: product.id, format: :json
+        expect(json_response['price']).not_to eq(2.22)
+      end
     end
 
     context 'as an administrator' do
diff --git a/spec/features/admin/products_spec.rb b/spec/features/admin/products_spec.rb
index 9e4544f657..080fd74702 100644
--- a/spec/features/admin/products_spec.rb
+++ b/spec/features/admin/products_spec.rb
@@ -114,6 +114,70 @@ feature '
       expect(page).to have_content "Unit value can't be blank"
     end
   end
+  
+  describe "deleting", js: true do
+    let!(:product1) { create(:simple_product, name: 'a product to keep', supplier: @supplier) }
+
+    context 'a simple product' do
+      let!(:product2) { create(:simple_product, name: 'a product to delete', supplier: @supplier) }
+
+      before do
+        login_as_admin_and_visit spree.admin_products_path
+
+        within "#p_#{product2.id}" do
+          accept_alert { page.find("[data-powertip=Remove]").click }
+        end
+        visit current_path
+      end
+
+      it 'removes it from the product list' do
+        expect(page).not_to have_selector "#p_#{product2.id}"
+        expect(page).to have_selector "#p_#{product1.id}"
+      end
+    end
+
+    context 'a shipped product' do
+      let!(:order) { create(:shipped_order, line_items_count: 1) }
+      let!(:line_item) { order.reload.line_items.first }
+
+      before do
+        login_as_admin_and_visit spree.admin_products_path
+
+        within "#p_#{order.variants.first.product_id}" do
+          accept_alert { page.find("[data-powertip=Remove]").click }
+        end
+        visit current_path
+      end
+      it 'removes it from the product list' do
+        expect(page).to have_selector "#p_#{product1.id}"
+        expect(page).not_to have_selector "#p_#{order.variants.first.product_id}"
+      end
+
+      it 'keeps the line item on the order (admin)' do
+        visit spree.admin_orders_path
+        find(".icon-edit").click
+        expect(page).to have_content(line_item.product.name.to_s)
+      end
+    end
+  end
+
+  describe 'cloning' do
+    let!(:product1) { create(:simple_product, name: 'a weight product', supplier: @supplier, variant_unit: "weight") }
+
+    context 'products', js: true do
+      before { login_as_admin_and_visit spree.admin_products_path }
+
+      it 'creates a copy of the product' do
+        within "#p_#{product1.id}" do
+          page.find("[data-powertip=Clone]").click
+        end
+        visit current_path
+        within "#p_#{product1.id + 1}" do
+          expect(page).to have_input "product_name", with: 'COPY OF a weight product'
+        end
+      end
+    end
+  end
 
   context "as an enterprise user" do
     let!(:tax_category) { create(:tax_category) }