diff --git a/lib/open_food_web/order_cycle_form_applicator.rb b/lib/open_food_web/order_cycle_form_applicator.rb
index d6dbb7c49a..5b50910df0 100644
--- a/lib/open_food_web/order_cycle_form_applicator.rb
+++ b/lib/open_food_web/order_cycle_form_applicator.rb
@@ -20,6 +20,11 @@ module OpenFoodWeb
       destroy_untouched_exchanges
     end
 
+
+    private
+
+    attr_accessor :touched_exchanges
+
     def exchange_exists?(sender_id, receiver_id)
       @order_cycle.exchanges.where(:sender_id => sender_id, :receiver_id => receiver_id).present?
     end
@@ -45,8 +50,6 @@ module OpenFoodWeb
     end
 
 
-    private
-
     def exchange_variant_ids(exchange)
       exchange[:exchange_variants].select { |k, v| v }.keys.map { |k| k.to_i }
     end
diff --git a/spec/lib/open_food_web/order_cycle_form_applicator_spec.rb b/spec/lib/open_food_web/order_cycle_form_applicator_spec.rb
index d7a123c862..f73c693a84 100644
--- a/spec/lib/open_food_web/order_cycle_form_applicator_spec.rb
+++ b/spec/lib/open_food_web/order_cycle_form_applicator_spec.rb
@@ -12,14 +12,31 @@ module OpenFoodWeb
         exchange = FactoryGirl.create(:exchange, order_cycle: oc)
         applicator = OrderCycleFormApplicator.new(oc)
 
-        applicator.exchange_exists?(exchange.sender_id, exchange.receiver_id).should be_true
-        applicator.exchange_exists?(exchange.receiver_id, exchange.sender_id).should be_false
-        applicator.exchange_exists?(exchange.sender_id, 999).should be_false
-        applicator.exchange_exists?(999, exchange.receiver_id).should be_false
-        applicator.exchange_exists?(999, 888).should be_false
+        applicator.send(:exchange_exists?, exchange.sender_id, exchange.receiver_id).should be_true
+        applicator.send(:exchange_exists?, exchange.receiver_id, exchange.sender_id).should be_false
+        applicator.send(:exchange_exists?, exchange.sender_id, 999).should be_false
+        applicator.send(:exchange_exists?, 999, exchange.receiver_id).should be_false
+        applicator.send(:exchange_exists?, 999, 888).should be_false
       end
 
-      it "adds exchanges"
+      it "adds exchanges" do
+        oc = FactoryGirl.create(:simple_order_cycle)
+        applicator = OrderCycleFormApplicator.new(oc)
+        sender = FactoryGirl.create(:enterprise)
+        receiver = FactoryGirl.create(:enterprise)
+        variant1 = FactoryGirl.create(:variant)
+        variant2 = FactoryGirl.create(:variant)
+
+        applicator.send(:touched_exchanges=, [])
+        applicator.send(:add_exchange, sender.id, receiver.id, [variant1.id, variant2.id])
+
+        exchange = Exchange.last
+        exchange.sender.should == sender
+        exchange.receiver.should == receiver
+        exchange.variants.sort.should == [variant1, variant2].sort
+
+        applicator.send(:touched_exchanges).should == [exchange]
+      end
 
       it "updates exchanges"
     end
@@ -79,7 +96,7 @@ module OpenFoodWeb
         applicator.should_receive(:destroy_untouched_exchanges)
 
         applicator.go!
-        applicator.untouched_exchanges.should == [exchange]
+        applicator.send(:untouched_exchanges).should == [exchange]
       end
 
       it "converts exchange variant ids hash to an array of ids" do