Add Sidetiq.workers.

lib/sidetiq.rb

@@ -20,6 +20,11 @@ require 'sidetiq/version'
 
 # The Sidetiq namespace.
 module Sidetiq
+  # Public: Returns an Array of workers including Sidetiq::Schedulable.
+  def self.workers
+    schedules.keys
+  end
+
   # Public: Returns a Hash of Sidetiq::Schedule instances.
   def self.schedules
     Clock.synchronize do

test/test_sidetiq.rb

@@ -6,5 +6,9 @@ class TestSidetiq < Sidetiq::TestCase
     assert_equal [ScheduledWorker], Sidetiq.schedules.keys
     assert_kind_of Sidetiq::Schedule, Sidetiq.schedules[ScheduledWorker]
   end
+
+  def test_workers
+    assert_equal [ScheduledWorker], Sidetiq.workers
+  end
 end