require "helper" module ActiveJob module QueueAdapters class StubOneAdapter def enqueue(*); end def enqueue_at(*); end end class StubTwoAdapter def enqueue(*); end def enqueue_at(*); end end end end class QueueAdapterTest < ActiveJob::TestCase test "should forbid nonsense arguments" do assert_raises(ArgumentError) { ActiveJob::Base.queue_adapter = Mutex } assert_raises(ArgumentError) { ActiveJob::Base.queue_adapter = Mutex.new } end test "should allow overriding the queue_adapter at the child class level without affecting the parent or its sibling" do base_queue_adapter = ActiveJob::Base.queue_adapter child_job_one = Class.new(ActiveJob::Base) child_job_one.queue_adapter = :stub_one assert_not_equal ActiveJob::Base.queue_adapter, child_job_one.queue_adapter assert_kind_of ActiveJob::QueueAdapters::StubOneAdapter, child_job_one.queue_adapter child_job_two = Class.new(ActiveJob::Base) child_job_two.queue_adapter = :stub_two assert_kind_of ActiveJob::QueueAdapters::StubTwoAdapter, child_job_two.queue_adapter assert_kind_of ActiveJob::QueueAdapters::StubOneAdapter, child_job_one.queue_adapter, "child_job_one's queue adapter should remain unchanged" assert_equal base_queue_adapter, ActiveJob::Base.queue_adapter, "ActiveJob::Base's queue adapter should remain unchanged" child_job_three = Class.new(ActiveJob::Base) assert_not_nil child_job_three.queue_adapter end end