File: lock_spec.rb

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ruby-rufus-scheduler 3.8.2-3
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#
# Specifying rufus-scheduler
#
# Sat Aug 16 05:42:11 JST 2014
# added by @ecin
#

require 'spec_helper'


describe Rufus::Scheduler do

  context "when running multiple schedulers side-by-side" do

    class AlwaysLock
      def lock; true; end
      def unlock; true; end
      def locked?; true; end
    end

    class NeverLock
      def lock; false; end
      def unlock; true; end
      def locked?; true; end
    end

    it "only starts if it can acquire a scheduler lock" do

      main = Rufus::Scheduler.new :scheduler_lock => AlwaysLock.new
      backup = Rufus::Scheduler.new :scheduler_lock => NeverLock.new

      expect(main).to be_up
      expect(backup).to be_down
    end

    it "only triggers jobs when it can acquire a trigger lock" do

      main = Rufus::Scheduler.new(:trigger_lock => AlwaysLock.new)
      backup = Rufus::Scheduler.new(:trigger_lock => NeverLock.new)

      expect(main).to be_up
      expect(backup).to be_up

      counter = 0
      job = proc { counter += 1 }
      main.schedule_in(0, job)
      backup.schedule_in(0, job)

      sleep 0.5

      expect(main.jobs).to be_empty
      expect(backup.jobs.count).to eq(1)
      expect(backup.jobs.first.next_time).to be(false)
      expect(counter).to eq(1)
    end
  end
end