Simplest job and inline queue

lib/active_job/base.rb

@@ -1,4 +1,11 @@
+require 'active_job/queue_adapters/inline_queue'
+
 module ActiveJob
   class Base
+    class << self
+      def enqueue(*args)
+        ActiveJob::QueueAdapters::InlineQueue.queue self, *args
+      end
+    end
   end
 end

lib/active_job/queue_adapters/inline_queue.rb

@@ -0,0 +1,11 @@
+module ActiveJob
+  module QueueAdapters
+    class InlineQueue
+      class << self
+        def queue(job, *args)
+          job.perform *args
+        end
+      end
+    end
+  end
+end

test/cases/queuing_test.rb

@@ -1,7 +1,19 @@
 require 'helper'
+require 'jobs/hello_job'
+
 
 class QueuingTest < ActiveSupport::TestCase
-  test 'the truth' do
-    assert true
+  setup do
+    $BUFFER = []
+  end
+
+  test 'run queued job' do
+    HelloJob.enqueue
+    assert_equal "David says hello", $BUFFER.pop
+  end
+
+  test 'run queued job with parameters' do
+    HelloJob.enqueue "Jamie"
+    assert_equal "Jamie says hello", $BUFFER.pop
   end
 end

test/jobs/hello_job.rb

@@ -0,0 +1,5 @@
+class HelloJob < ActiveJob::Base
+  def self.perform(greeter = "David")
+    $BUFFER << "#{greeter} says hello"
+  end
+end