Replace custom Twitter::NullObject with Naught

Rakefile

@@ -31,7 +31,7 @@ end
 
 require 'yardstick/rake/verify'
 Yardstick::Rake::Verify.new do |verify|
-  verify.threshold = 59.7
+  verify.threshold = 59.8
 end
 
 task :default => [:spec, :rubocop, :verify_measurements]

lib/twitter/null_object.rb

@@ -1,26 +1,14 @@
-require 'forwardable'
+require 'naught'
 
 module Twitter
-  class NullObject
-    extend Forwardable
-    def_instance_delegators :nil, :nil?, :to_a, :to_c, :to_c, :to_f, :to_h,
-                            :to_i, :to_r, :to_s
-    alias_method :to_ary, :to_a
-    alias_method :to_str, :to_s
+  NullObject = Naught.build do |config|
+    config.black_hole
+    config.define_explicit_conversions
+    config.define_implicit_conversions
+    config.predicates_return false
 
-    # @return [Twitter::NullObject] This method always returns self.
-    def method_missing(*args)
-      self
-    end
-
-    # @return [TrueClass] This method always returns true.
-    def respond_to?(method_name, include_private = false)
+    def nil?
       true
-    end if RUBY_VERSION < '1.9'
-
-    # @return [TrueClass] This method always returns true.
-    def respond_to_missing?(method_name, include_private = false)
-      true
-    end if RUBY_VERSION >= '1.9'
+    end
   end
 end

spec/helper.rb

@@ -8,7 +8,7 @@
 
 SimpleCov.start do
   add_filter '/spec/'
-  minimum_coverage(99.37)
+  minimum_coverage(99.42)
 end
 
 require 'twitter'

twitter.gemspec

@@ -12,6 +12,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'http_parser.rb', '~> 0.6.0'
   spec.add_dependency 'json', '~> 1.8'
   spec.add_dependency 'memoizable', '~> 0.4.0'
+  spec.add_dependency 'naught', '~> 1.0'
   spec.add_dependency 'simple_oauth', '~> 0.2.0'
   spec.add_development_dependency 'bundler', '~> 1.0'
   spec.authors = ['Erik Michaels-Ober', 'John Nunemaker', 'Wynn Netherland', 'Steve Richert', 'Steve Agalloco']