Add couchbase with modifications, formalize broadcaster and make testable and some other stuff

spec/models/list_spec.rb

@@ -122,4 +122,36 @@ describe List do
     end
   end
 
+  describe '#place_order' do
+
+    it 'returns an order object' do
+      list.place_order(user, product.id => 7).should be_a Order
+    end
+
+    it 'creates an order' do
+      expect{ list.place_order(user, product.id => 7) }.to change{ Order.count }.by(1)
+    end
+
+    describe 'broadcasting' do
+      it 'broadcasts to the user and the supplier the active order counter' do
+        list.place_order(user, product.id => 7)
+
+        expect{
+          list.place_order(user, product.id => 3)
+        }.to broadcast_to_user(user.id).message('orders_in_process_count').with(count: 2)
+
+        expect{
+          list.place_order(user, product.id => 5)
+        }.to broadcast_to_supplier(supplier.id).message('orders_in_process_count').with(count: 3)
+      end
+    end
+
+    it 'sets the list price as kind of caching' do
+      list.place_order(user, product.id => 7)
+      list.reload
+      list.price.should == 3
+    end
+
+    describe 'product order creation'
+  end
 end