Methods such as abc? return true/false Hashie::Extensions::MethodReader.

CHANGELOG.md

@@ -9,6 +9,7 @@
 * [#260](https://github.com/intridia/hashie/pull/260): Added block support to Extensions::DeepMerge - [@galathius](https://github.com/galathius).
 * [#254](https://github.com/intridea/hashie/pull/254): Added public utility methods for stringify and symbolize keys - [@maxlinc](https://github.com/maxlinc).
 * [#261](https://github.com/intridea/hashie/pull/261): Fixed bug where Dash.property modifies argument object - [@d_tw](https://github.com/d_tw).
+* [#264](https://github.com/intridea/hashie/pull/264): Methods such as abc? return true/false with Hashie::Extensions::MethodReader - [@Zloy](https://github.com/Zloy).
 * Your contribution here.
 
 ## 3.3.2 (11/26/2014)

UPGRADING.md

@@ -1,6 +1,30 @@
 Upgrading Hashie
 ================
 
+### Upgrading to 3.2.2
+
+#### Testing if key defined
+
+In versions <= 3.2.1 Hash object being questioned doesn't return a boolean value as it's mentioned in README.md
+
+```ruby
+class MyHash < Hash
+  include Hashie::Extensions::MethodAccess
+end
+
+h = MyHash.new
+h.abc = 'def'
+h.abc  # => 'def'
+h.abc? # => 'def'
+```
+
+In versions >= 3.2.2 it returns a boolean value
+
+```ruby
+h.abc? # => true
+h.abb? # => false
+```
+
 ### Upgrading to 3.2.1
 
 #### Possible coercion changes

lib/hashie/extensions/method_access.rb

@@ -35,6 +35,10 @@ module Hashie
       def method_missing(name, *args)
         return self[name.to_s] if key?(name.to_s)
         return self[name.to_sym] if key?(name.to_sym)
+        if name[-1] == '?'
+          kname = name.to_s[0..-2]
+          return key?(kname) || key?(kname.to_sym)
+        end
         super
       end
     end

spec/hashie/extensions/method_access_spec.rb

@@ -29,6 +29,14 @@ describe Hashie::Extensions::MethodReader do
     expect { subject.new.awesome }.to raise_error(NoMethodError)
   end
 
+  it 'returns false for undefined keys if key with question has been called ' do
+    expect(subject.new.awesome?).to eq false
+  end
+
+  it 'returns true for defined keys if key with question has been called' do
+    expect(subject.new(awesome: 'sauce').awesome?).to eq true
+  end
+
   describe '#respond_to?' do
     it 'is true for string keys' do
       expect(subject.new('awesome' => 'sauce')).to be_respond_to(:awesome)