* Revert instance methods

* Add better test coverage

lib/sidekiq/api.rb

@@ -3,33 +3,33 @@ require 'sidekiq'
 module Sidekiq
 
   class Stats
-    class << self
-      def processed
-        Sidekiq.redis do |conn|
-          conn.get("stat:processed")
-        end || 0
-      end
+    def processed
+      count = Sidekiq.redis do |conn|
+                conn.get("stat:processed")
+              end
+      count.nil? ? 0 : count.to_i
+    end
 
-      def failed
-        Sidekiq.redis do |conn|
-          conn.get("stat:failed")
-        end || 0
-      end
+    def failed
+      count = Sidekiq.redis do |conn|
+                conn.get("stat:failed")
+              end
+      count.nil? ? 0 : count.to_i
+    end
 
-      def queues
-        Sidekiq.redis do |conn|
-          queues = conn.smembers('queues')
+    def queues
+      Sidekiq.redis do |conn|
+        queues = conn.smembers('queues')
 
-          queues.inject({}) do |memo, queue|
-            memo[queue] = conn.llen("queue:#{queue}")
-            memo
-          end
+        queues.inject({}) do |memo, queue|
+          memo[queue] = conn.llen("queue:#{queue}")
+          memo
         end
       end
+    end
 
-      def enqueued
-        queues.values.inject(&:+) || 0
-      end
+    def enqueued
+      queues.values.inject(&:+) || 0
     end
   end
 

test/test_api.rb

@@ -8,20 +8,34 @@ class TestApi < MiniTest::Unit::TestCase
 
     describe "processed" do
       it "is initially zero" do
-        assert_equal 0, Sidekiq::Stats.processed
+        s = Sidekiq::Stats.new
+        assert_equal 0, s.processed
+      end
+
+      it "returns number of processed jobs" do
+        Sidekiq.redis { |conn| conn.set("stat:processed", 5) }
+        s = Sidekiq::Stats.new
+        assert_equal 5, s.processed
       end
     end
 
     describe "failed" do
       it "is initially zero" do
-        assert_equal 0, Sidekiq::Stats.processed
+        s = Sidekiq::Stats.new
+        assert_equal 0, s.processed
+      end
+
+      it "returns number of failed jobs" do
+        Sidekiq.redis { |conn| conn.set("stat:failed", 5) }
+        s = Sidekiq::Stats.new
+        assert_equal 5, s.failed
       end
     end
 
     describe "queues" do
       it "is initially empty" do
         s = Sidekiq::Stats.new
-        assert_equal 0, Sidekiq::Stats.queues.size
+        assert_equal 0, s.queues.size
       end
 
       it "returns a hash of queue and size" do
@@ -33,13 +47,15 @@ class TestApi < MiniTest::Unit::TestCase
           conn.sadd 'queues', 'bar'
         end
 
-        assert_equal ({ "foo" => 1, "bar" => 3 }), Sidekiq::Stats.queues
+        s = Sidekiq::Stats.new
+        assert_equal ({ "foo" => 1, "bar" => 3 }), s.queues
       end
     end
 
     describe "enqueued" do
       it "is initially empty" do
-        assert_equal 0, Sidekiq::Stats.enqueued
+        s = Sidekiq::Stats.new
+        assert_equal 0, s.enqueued
       end
 
       it "returns total enqueued jobs" do
@@ -51,7 +67,8 @@ class TestApi < MiniTest::Unit::TestCase
           conn.sadd 'queues', 'bar'
         end
 
-        assert_equal 4, Sidekiq::Stats.enqueued
+        s = Sidekiq::Stats.new
+        assert_equal 4, s.enqueued
       end
     end
   end