add a custom stats instrument to the acceptance stack

Author: GrantBirki

spec/acceptance/config/hooks.yaml

@@ -2,6 +2,7 @@
 handler_plugin_dir: ./spec/acceptance/plugins/handlers
 auth_plugin_dir: ./spec/acceptance/plugins/auth
 lifecycle_plugin_dir: ./spec/acceptance/plugins/lifecycle
+instruments_plugin_dir: ./spec/acceptance/plugins/instruments
 
 log_level: debug
 

spec/acceptance/plugins/instruments/stats.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class Stats < Hooks::Plugins::Instruments::StatsBase
+  def initialize
+    # just a demo implementation
+  end
+
+  def success
+    log.debug("response success recorded")
+  end
+end

spec/acceptance/plugins/lifecycle/request_method_logger.rb

@@ -5,4 +5,8 @@ class RequestMethodLogger < Hooks::Plugins::Lifecycle
   def on_request(env)
     log.debug("on_request called with method: #{env['REQUEST_METHOD']}")
   end
+
+  def on_response(env, response)
+    stats.success
+  end
 end