Indicate in procline that manager have stopped

lib/sidekiq/manager.rb

@@ -133,13 +133,14 @@ module Sidekiq
     end
 
     def heartbeat(key, data)
-      return if stopped?
-
       proctitle = ['sidekiq', Sidekiq::VERSION]
       proctitle << data['tag'] unless data['tag'].empty?
       proctitle << "[#{@busy.size} of #{data['concurrency']} busy]"
       proctitle << 'stopping' if stopped?
       $0 = proctitle.join(' ')
+
+      return if stopped?
+
       ❤(key)
       after(5) do
         heartbeat(key, data)

test/test_manager.rb

@@ -1,5 +1,6 @@
 require 'helper'
 require 'sidekiq/manager'
+require 'sidekiq/util'
 
 class TestManager < Sidekiq::Test
 
@@ -77,9 +78,36 @@ class TestManager < Sidekiq::Test
       fetcher.verify
     end
 
+    describe 'heartbeat' do
+      describe 'proctitle' do
+        it 'sets useful info' do
+          mgr = Sidekiq::Manager.new(options)
+          mgr.heartbeat('identity', heartbeat_data)
+
+          proctitle = $0
+          assert_equal $0, "sidekiq #{Sidekiq::VERSION} myapp [0 of 3 busy]"
+          $0 = proctitle
+        end
+
+        it 'indicates when stopped' do
+          mgr = Sidekiq::Manager.new(options)
+          mgr.stop
+          mgr.heartbeat('identity', heartbeat_data)
+
+          proctitle = $0
+          assert_equal $0, "sidekiq #{Sidekiq::VERSION} myapp [0 of 3 busy] stopping"
+          $0 = proctitle
+        end
+      end
+    end
+
     def options
       { :concurrency => 3, :queues => ['default'] }
     end
+
+    def heartbeat_data
+      { 'concurrency' => 3, 'tag' => 'myapp' }
+    end
   end
 
 end