WIP

Author: Watson1978

test/fluent/plugin/test_in_opentelemetry_metrics.rb

@@ -63,26 +63,26 @@ def setup
       </label>
     CONFIG
 
-    @root_agent = Fluent::RootAgent.new(log: $log) # rubocop:disable Style/GlobalVars
-    stub(Fluent::Engine).root_agent { @root_agent }
-    @root_agent = configure_root_agent(@root_agent, conf)
+    root_agent = Fluent::RootAgent.new(log: $log) # rubocop:disable Style/GlobalVars
+    stub(Fluent::Engine).root_agent { root_agent }
+    configure_root_agent(root_agent, conf)
   end
 
   def teardown
     Timecop.mock_process_clock = false
     Timecop.return
   end
 
-  def create_driver(conf = config)
-    Fluent::Test::Driver::Input.new(Fluent::Plugin::OpentelemetryMetricsInput).configure(conf)
-  end
-
   def configure_root_agent(root_agent, conf_str)
     conf = Fluent::Config.parse(conf_str, "(test)", "(test_dir)", true)
     root_agent.configure(conf)
     root_agent
   end
 
+  def create_driver(conf = config)
+    Fluent::Test::Driver::Input.new(Fluent::Plugin::OpentelemetryMetricsInput).configure(conf)
+  end
+
   def config
     <<~CONFIG
       tag opentelemetry.test