Initial Resque::Logger module

This module can be selectively included in classes which wish to take
advantage of the centralized logging facilities, enabling a set of 5
methods for each severity level (debug, info, warn, error, fatal)

Author: tarcieri

lib/resque.rb

@@ -10,6 +10,7 @@
 
 require 'resque/helpers'
 require 'resque/stat'
+require 'resque/logger'
 require 'resque/job'
 require 'resque/worker'
 require 'resque/plugin'

lib/resque/logger.rb

@@ -0,0 +1,18 @@
+module Resque
+  # Include this module in classes you wish to have logging facilities
+  module Logger
+    module_function
+    
+    # Log level aliases
+    def debug(message); __log__ :debug, message; end
+    def info(message);  __log__ :info,  message; end
+    def warn(message);  __log__ :warn,  message; end
+    def error(message); __log__ :error, message; end
+    def fatal(message); __log__ :fatal, message; end
+    
+    # Low-level thunk to the logger's own log method
+    def __log__(severity, message)
+      Resque.logger.__send__(severity, message) if Resque.logger
+    end
+  end
+end

test/logger_test.rb

@@ -1,9 +1,24 @@
 require 'test_helper'
+require 'minitest/mock'
 
 context "Resque.logger" do
   test "sets and receives the active logger" do
     my_logger = Object.new
     Resque.logger = my_logger
     assert_equal my_logger, Resque.logger
   end
+end
+
+context "Resque::Logger" do
+  %w(debug info error fatal).each do |severity|
+    test "logs #{severity} messages" do
+      message       = "test message"
+      mock_logger   = MiniTest::Mock.new
+      mock_logger.expect severity.to_sym, nil, [message]
+      Resque.logger = mock_logger
+
+      Resque::Logger.send severity, message
+      mock_logger.verify
+    end
+  end
 end