Changed up spec_helper a bit, added respond_to? on Mash

Gemfile

@@ -1,9 +1,10 @@
 # A sample Gemfile
-source :gemcutter
+source 'http://rubygems.org'
 
 group :development do
   gem 'rake'
   gem 'json'
+  gem 'jeweler'
 end
 
 group :test do

Gemfile.lock

@@ -1,25 +1,24 @@
---- 
-dependencies: 
-  rake: 
-    group: 
-    - :development
-    version: ">= 0"
-  rspec: 
-    group: 
-    - :test
-    version: ">= 0"
-  json: 
-    group: 
-    - :development
-    version: ">= 0"
-specs: 
-- rake: 
-    version: 0.8.7
-- json: 
-    version: 1.4.3
-- rspec: 
-    version: 1.3.0
-hash: d9c314ac1790a9ac25dfdaf7574b86d62b88f1d5
-sources: 
-- Rubygems: 
-    uri: http://gemcutter.org
+GEM
+  remote: http://rubygems.org/
+  specs:
+    gemcutter (0.6.1)
+    git (1.2.5)
+    jeweler (1.4.0)
+      gemcutter (>= 0.1.0)
+      git (>= 1.2.5)
+      rubyforge (>= 2.0.0)
+    json (1.4.3)
+    json_pure (1.4.3)
+    rake (0.8.7)
+    rspec (1.3.0)
+    rubyforge (2.0.4)
+      json_pure (>= 1.1.7)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  jeweler
+  json
+  rake
+  rspec

lib/hashie/mash.rb

@@ -111,7 +111,13 @@ module Hashie
     alias_method :update, :deep_update
     alias_method :merge!, :update
 
-
+   # Will return true if the Mash has had a key
+   # set in addition to normal respond_to? functionality.
+   def respond_to?(method_name)
+     return true if key?(method_name)
+     super
+   end
+   
    def method_missing(method_name, *args, &blk)
      return self[method_name] if key?(method_name)
      match = method_name.to_s.match(/(.*?)([?=!]?)$/)

spec/hashie/clash_spec.rb

@@ -1,4 +1,4 @@
-require File.dirname(__FILE__) + '/../spec_helper'
+require 'spec_helper'
 
 describe Hashie::Clash do
   before do

spec/hashie/dash_spec.rb

@@ -1,4 +1,4 @@
-require File.dirname(__FILE__) + '/../spec_helper'
+require 'spec_helper'
 
 class DashTest < Hashie::Dash
   property :first_name

spec/hashie/hash_spec.rb

@@ -1,4 +1,4 @@
-require File.dirname(__FILE__) + '/../spec_helper'
+require 'spec_helper'
 
 describe Hash do
   it "should be convertible to a Hashie::Mash" do

spec/hashie/mash_spec.rb

@@ -1,4 +1,4 @@
-require File.dirname(__FILE__) + '/../spec_helper'
+require 'spec_helper'
 
 describe Hashie::Mash do
   before(:each) do
@@ -82,6 +82,16 @@ describe Hashie::Mash do
     record.son = MyMash.new
     record.son.class.should == MyMash
   end
+  
+  describe '#respond_to?' do
+    it 'should respond to a normal method' do
+      Hashie::Mash.new.should be_respond_to(:key?)
+    end
+    
+    it 'should respond to a set key' do
+      Hashie::Mash.new(:abc => 'def').should be_respond_to(:abc)
+    end
+  end
 
   context "#initialize" do
     it "should convert an existing hash to a Hashie::Mash" do