lib/dat/science/experiment.rb in dat-science-1.0.0 vs lib/dat/science/experiment.rb in dat-science-1.1.0

@@ -48,18 +48,21 @@
       # If the experiment is disabled or candidate behavior isn't provided the
       # control behavior's result will be returned immediately.
       def run
         return run_control unless candidate? && enabled?
 
+        timestamp = Time.now
+
         if control_runs_first?
           control   = observe_control
           candidate = observe_candidate
         else
           candidate = observe_candidate
           control   = observe_control
         end
 
         payload = {
+          :timestamp => timestamp,
           :candidate => candidate.payload,
           :control   => control.payload,
           :first     => control_runs_first? ? :control : :candidate
         }