From b44104ae1357f0177056e833d7cd1e0abaa5c759 Mon Sep 17 00:00:00 2001
From: Paul Battley <pbattley@gmail.com>
Date: Tue, 3 Jul 2012 13:03:48 +0100
Subject: Make TestQueueTest work with marshalling queue

This requires all jobs to be instances of named classes, without block
implementations of methods.
---
 railties/test/queueing/test_queue_test.rb | 85 ++++++++++++++++++++++---------
 1 file changed, 60 insertions(+), 25 deletions(-)

(limited to 'railties/test/queueing/test_queue_test.rb')

diff --git a/railties/test/queueing/test_queue_test.rb b/railties/test/queueing/test_queue_test.rb
index 78c6c617fe..2f0f507adb 100644
--- a/railties/test/queueing/test_queue_test.rb
+++ b/railties/test/queueing/test_queue_test.rb
@@ -2,22 +2,18 @@ require 'abstract_unit'
 require 'rails/queueing'
 
 class TestQueueTest < ActiveSupport::TestCase
-  class Job
-    def initialize(&block)
-      @block = block
-    end
+  def setup
+    @queue = Rails::Queueing::TestQueue.new
+  end
 
+  class ExceptionRaisingJob
     def run
-      @block.call if @block
+      raise
     end
   end
 
-  def setup
-    @queue = Rails::Queueing::TestQueue.new
-  end
-
   def test_drain_raises
-    @queue.push Job.new { raise }
+    @queue.push ExceptionRaisingJob.new
     assert_raises(RuntimeError) { @queue.drain }
   end
 
@@ -27,41 +23,80 @@ class TestQueueTest < ActiveSupport::TestCase
     assert_equal [1,2], @queue.jobs
   end
 
+  class EquivalentJob
+    def initialize
+      @initial_id = self.object_id
+    end
+
+    def run
+    end
+
+    def ==(other)
+      other.same_initial_id?(@initial_id)
+    end
+
+    def same_initial_id?(other_id)
+      other_id == @initial_id
+    end
+  end
+
   def test_contents
     assert @queue.empty?
-    job = Job.new
+    job = EquivalentJob.new
     @queue.push job
     refute @queue.empty?
     assert_equal job, @queue.pop
   end
 
-  def test_order
-    processed = []
+  class ProcessingJob
+    def self.clear_processed
+      @processed = []
+    end
+
+    def self.processed
+      @processed
+    end
+
+    def initialize(object)
+      @object = object
+    end
+
+    def run
+      self.class.processed << @object
+    end
+  end
 
-    job1 = Job.new { processed << 1 }
-    job2 = Job.new { processed << 2 }
+  def test_order
+    ProcessingJob.clear_processed
+    job1 = ProcessingJob.new(1)
+    job2 = ProcessingJob.new(2)
 
     @queue.push job1
     @queue.push job2
     @queue.drain
 
-    assert_equal [1,2], processed
+    assert_equal [1,2], ProcessingJob.processed
   end
 
-  def test_drain
-    t = nil
-    ran = false
+  class ThreadTrackingJob
+    attr_reader :thread_id
 
-    job = Job.new do
-      ran = true
-      t = Thread.current
+    def run
+      @thread_id = Thread.current.object_id
     end
 
-    @queue.push job
+    def ran?
+      @thread_id
+    end
+  end
+
+  def test_drain
+    @queue.push ThreadTrackingJob.new
+    job = @queue.jobs.last
     @queue.drain
 
     assert @queue.empty?
-    assert ran, "The job runs synchronously when the queue is drained"
-    assert_not_equal t, Thread.current
+    assert job.ran?, "The job runs synchronously when the queue is drained"
+    assert_not_equal job.thread_id, Thread.current.object_id
   end
 end
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