No longer creating transaction when not persisting

lib/aasm/persistence/active_record_persistence.rb

@@ -171,9 +171,7 @@ def aasm_ensure_initial_state
         end
 
         def aasm_fire_event(name, options, *args, &block)
-          success = self.class.transaction(:requires_new => requires_new?) do
-            super
-          end
+          success = options[:persist] ? self.class.transaction(:requires_new => requires_new?) { super } : super
 
           if success && options[:persist]
             new_state = aasm.state_object_for_name(aasm.current_state)

spec/unit/persistence/active_record_persistence_spec.rb

@@ -447,6 +447,23 @@
       end
 
     end
+
+    context "when not persisting" do
+      it 'should not rollback all changes' do
+        expect(transactor).to be_sleeping
+        expect(worker.status).to eq('sleeping')
+
+        # Notice here we're calling "run" and not "run!" with a bang.
+        expect {transactor.run}.to raise_error(StandardError, 'failed on purpose')
+        expect(transactor).to be_running
+        expect(worker.reload.status).to eq('running')
+      end
+
+      it 'should not create a database transaction' do
+        expect(transactor.class).not_to receive(:transaction)
+        expect {transactor.run}.to raise_error(StandardError, 'failed on purpose')
+      end
+    end
   end
 end