Add mutex lock to transaction rollback

client/spec/spec_helper.rb

@@ -26,11 +26,13 @@
   config.use_transactional_fixtures = true
 
   config.before :all do
+    @semaphore = Mutex.new
     DRb.start_service
     @remote_base = DRbObject.new nil, "druby://localhost:8000"
   end
 
   config.before :each do
+    @semaphore.lock
     @remote_base.connection.increment_open_transactions
     @remote_base.connection.transaction_joinable = false
     @remote_base.connection.begin_db_transaction
@@ -40,5 +42,6 @@
     @remote_base.connection.rollback_db_transaction
     @remote_base.connection.decrement_open_transactions
     @remote_base.clear_active_connections!
+    @semaphore.unlock
   end
 end

server/.rvmrc

@@ -0,0 +1 @@
+rvm use 1.9.2@testing_rest_web_services_client