Added debug logging to ping thread.

lib/slack-ruby-bot-server/ping.rb

@@ -12,15 +12,24 @@ def initialize(client, options = {})
 
     def start!
       ::Async::Reactor.run do |task|
-        loop do
-          task.sleep ping_interval
-          break unless check!
-        end
+        run(task)
       end
     end
 
     private
 
+    def run(task)
+      loop do
+        logger.debug "PING: #{owner}, every #{ping_interval} second(s)"
+        task.sleep ping_interval
+        break unless check!
+      end
+      logger.warn "Done pinging team #{owner.id}."
+    rescue StandardError => e
+      logger.error e
+      raise e
+    end
+
     def check!
       if online?
         @error_count = 0
@@ -60,7 +69,7 @@ def down!
     end
 
     def restart!
-      logger.warn "RESTART: #{owner}"
+      logger.warn "RESTART: #{owner}, #{driver}"
       driver.close if driver
     end