From 802f855ecf95d36982482182adcb007d505e2178 Mon Sep 17 00:00:00 2001
From: Tamir Duberstein <tamird@squareup.com>
Date: Tue, 23 Sep 2014 21:11:54 -0700
Subject: `ActiveJob::QueueAdapters::TestAdapter` is now a singleton

Since `ActiveJob::TestHelper` globally sets
`ActiveJob::Base.queue_adapter` on setup, there is no benefit in
instantiating a new `TestAdapter` per tests. The original rationale was
to allow parallel tests to run without interference, but since they'd
all mutate the global `ActiveJob::Base.queue_adapter`, that was never
realized.
---
 .../lib/active_job/queue_adapters/test_adapter.rb  | 52 +++++++++++-----------
 1 file changed, 26 insertions(+), 26 deletions(-)

(limited to 'activejob/lib/active_job/queue_adapters/test_adapter.rb')

diff --git a/activejob/lib/active_job/queue_adapters/test_adapter.rb b/activejob/lib/active_job/queue_adapters/test_adapter.rb
index c9e2bdca27..7254e06031 100644
--- a/activejob/lib/active_job/queue_adapters/test_adapter.rb
+++ b/activejob/lib/active_job/queue_adapters/test_adapter.rb
@@ -10,40 +10,39 @@ module ActiveJob
     #
     #   Rails.application.config.active_job.queue_adapter = :test
     class TestAdapter
-      delegate :name, to: :class
-      attr_accessor(:perform_enqueued_jobs, :perform_enqueued_at_jobs, :filter)
-      attr_writer(:enqueued_jobs, :performed_jobs)
+      class << self
+        attr_accessor(:perform_enqueued_jobs, :perform_enqueued_at_jobs, :filter)
+        attr_writer(:enqueued_jobs, :performed_jobs)
 
-      def initialize
-        self.perform_enqueued_jobs = false
-        self.perform_enqueued_at_jobs = false
-      end
+        # Provides a store of all the enqueued jobs with the TestAdapter so you can check them.
+        def enqueued_jobs
+          @enqueued_jobs ||= []
+        end
 
-      # Provides a store of all the enqueued jobs with the TestAdapter so you can check them.
-      def enqueued_jobs
-        @enqueued_jobs ||= []
-      end
+        # Provides a store of all the performed jobs with the TestAdapter so you can check them.
+        def performed_jobs
+          @performed_jobs ||= []
+        end
 
-      # Provides a store of all the performed jobs with the TestAdapter so you can check them.
-      def performed_jobs
-        @performed_jobs ||= []
-      end
+        def enqueue(job) #:nodoc:
+          return if filtered?(job)
 
-      def enqueue(job) #:nodoc:
-        return if filtered?(job)
+          job_data = job_to_hash(job)
+          enqueue_or_perform(perform_enqueued_jobs, job, job_data)
+        end
 
-        job_data = { job: job.class, args: job.serialize['arguments'], queue: job.queue_name }
-        enqueue_or_perform(perform_enqueued_jobs, job, job_data)
-      end
+        def enqueue_at(job, timestamp) #:nodoc:
+          return if filtered?(job)
 
-      def enqueue_at(job, timestamp) #:nodoc:
-        return if filtered?(job)
+          job_data = job_to_hash(job, at: timestamp)
+          enqueue_or_perform(perform_enqueued_at_jobs, job, job_data)
+        end
 
-        job_data = { job: job.class, args: job.serialize['arguments'], queue: job.queue_name, at: timestamp }
-        enqueue_or_perform(perform_enqueued_at_jobs, job, job_data)
-      end
+        private
 
-      private
+        def job_to_hash(job, extras = {})
+          { job: job.class, args: job.serialize.fetch('arguments'), queue: job.queue_name }.merge(extras)
+        end
 
         def enqueue_or_perform(perform, job, job_data)
           if perform
@@ -57,6 +56,7 @@ module ActiveJob
         def filtered?(job)
           filter && !Array(filter).include?(job.class)
         end
+      end
     end
   end
 end
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