Rename 'at' to 'beat' since it represents the time of last heartbeat, fix spec.

lib/sidekiq/api.rb

@@ -437,7 +437,7 @@ module Sidekiq
   #   'concurrency' => 25,
   #   'queues' => ['default', 'low'],
   #   'busy' => 10,
-  #   'at' => <last heartbeat>,
+  #   'beat' => <last heartbeat>,
   # }
 
   class ProcessSet
@@ -449,10 +449,10 @@ module Sidekiq
       to_prune = []
       Sidekiq.redis do |conn|
         procs.sort.each do |key|
-          info, busy, at_s = conn.hmget(key, 'info', 'busy', 'at')
+          info, busy, at_s = conn.hmget(key, 'info', 'busy', 'beat')
           (to_prune << key; next) if info.nil?
           hash = Sidekiq.load_json(info)
-          yield hash.merge('busy' => busy.to_i, 'at' => at_s.to_f)
+          yield hash.merge('busy' => busy.to_i, 'beat' => at_s.to_f)
         end
       end
 

lib/sidekiq/manager.rb

@@ -148,7 +148,7 @@ module Sidekiq
       watchdog('heartbeat') do
         Sidekiq.redis do |conn|
           conn.multi do
-            conn.hmset(key, 'busy', @busy.size, 'at', Time.now.to_f)
+            conn.hmset(key, 'busy', @busy.size, 'beat', Time.now.to_f)
             conn.expire(key, 60)
           end
         end

test/test_api.rb

@@ -348,7 +348,7 @@ class TestApi < Sidekiq::Test
       Sidekiq.redis do |conn|
         conn.multi do
           conn.sadd('processes', odata['key'])
-          conn.hmset(odata['key'], 'info', Sidekiq.dump_json(odata), 'busy', 10, 'at', time)
+          conn.hmset(odata['key'], 'info', Sidekiq.dump_json(odata), 'busy', 10, 'beat', time)
           conn.sadd('processes', 'fake:pid')
         end
       end
@@ -356,7 +356,7 @@ class TestApi < Sidekiq::Test
       ps = Sidekiq::ProcessSet.new.to_a
       assert_equal 1, ps.size
       data = ps.first
-      assert_equal odata.merge('busy' => 10, 'at' => time), data
+      assert_equal odata.merge('busy' => 10, 'beat' => time), data
     end
 
     it 'can enumerate workers' do

test/test_web.rb

@@ -261,11 +261,12 @@ class TestWeb < Sidekiq::Test
       assert last_response.body.include?( "args\">&quot;&lt;a&gt;hello&lt;&#x2F;a&gt;&quot;<" )
       assert !last_response.body.include?( "args\"><a>hello</a><" )
 
-
       # on /workers page
       Sidekiq.redis do |conn|
-        conn.sadd('processes', 'foo:1234')
-        identity = 'foo:1234:workers'
+        pro = 'foo:1234'
+        conn.sadd('processes', pro)
+        conn.hmset(pro, 'info', Sidekiq.dump_json('started_at' => Time.now.to_f), 'busy', 1, 'beat', Time.now.to_f)
+        identity = "#{pro}:workers"
         hash = {:queue => 'critical', :payload => { 'class' => "FailWorker", 'args' => ["<a>hello</a>"] }, :run_at => Time.now.to_i }
         conn.hmset(identity, 100001, Sidekiq.dump_json(hash))
         conn.incr('busy')