refactor @queues[queue.to_s] into it's own method

Based off @tenderlove's gist: https://gist.github.com/2322092

Author: hone

lib/resque.rb

@@ -149,15 +149,15 @@ def to_s
   #
   # Returns nothing
   def push(queue, item)
-    @queues[queue.to_s] << item
+    queue(queue) << item
   end
 
   # Pops a job off a queue. Queue name should be a string.
   #
   # Returns a Ruby object.
   def pop(queue)
     begin
-      @queues[queue.to_s].pop(true)
+      queue(queue).pop(true)
     rescue ThreadError
       nil
     end
@@ -166,7 +166,7 @@ def pop(queue)
   # Returns an integer representing the size of a queue.
   # Queue name should be a string.
   def size(queue)
-    @queues[queue.to_s].size
+    queue(queue).size
   end
 
   # Returns an array of items currently queued. Queue name should be
@@ -178,7 +178,7 @@ def size(queue)
   # To get the 3rd page of a 30 item, paginatied list one would use:
   #   Resque.peek('my_list', 59, 30)
   def peek(queue, start = 0, count = 1)
-    @queues[queue.to_s].slice start, count
+    queue(queue).slice start, count
   end
 
   # Does the dirty work of fetching a range of items from a Redis list
@@ -200,10 +200,15 @@ def queues
 
   # Given a queue name, completely deletes the queue.
   def remove_queue(queue)
-    @queues[queue.to_s].destroy
+    queue(queue).destroy
     @queues.delete(queue.to_s)
   end
 
+  # Return the Resque::Queue object for a given name
+  def queue(name)
+    @queues[name.to_s]
+  end
+
 
   #
   # job shortcuts

test/resque_test.rb

@@ -278,20 +278,7 @@
     end
   end
 
-  it "normalizes @queues' keys" do
-    [:foo, "foo"].each do |queue|
-      Resque.push(queue, GoodJob)
-      Resque.size(queue)
-      Resque.peek(queue)
-      Resque.pop(queue)
-    end
-
-    assert_equal 2, Resque.instance_variable_get("@queues").size
-    assert_equal 2, Resque.queues.size
-
-    Resque.remove_queue(:foo)
-
-    assert_equal 1, Resque.instance_variable_get("@queues").size
-    assert_equal 1, Resque.queues.size
+  it 'treats symbols and strings the same' do
+    assert_equal Resque.queue(:people), Resque.queue('people')
   end
 end