Allow strings and symbols when testing for equality

Priority::Low.new == :low  # => true
Priority::Low.new == 'low' # => true

CHANGELOG.md

@@ -10,6 +10,11 @@
 * Introducing I18n support and providing a ClassyEnum::Base#text method
   that will automatically translate text values.
 * Translation support was added to ClassyEnum::Base.select_options.
+* Equality can now be determined using strings and symbols. The
+  following will return true:
+
+      Priority::Low.new == :low  # => true
+      Priority::Low.new == 'low' # => true
 
 ## 3.0.0
 

lib/classy_enum/active_record.rb

@@ -29,7 +29,7 @@ def classy_enum_attr(attribute, options={})
 
       # Add ActiveRecord validation to ensure it won't be saved unless it's an option
       validates_inclusion_of attribute,
-        :in          => enum.all,
+        :in          => enum,
         :allow_blank => allow_blank,
         :allow_nil   => allow_nil
 

lib/classy_enum/collection.rb

@@ -19,6 +19,10 @@ module Collection
     #  priorities.max # => @high
     #  priorities.min # => @low
     def <=> other
+      if other.is_a?(Symbol) || other.is_a?(String)
+        other = self.class.find(other)
+      end
+
       index <=> other.index
     end
 

lib/classy_enum/predicate.rb

@@ -4,7 +4,7 @@ module Predicate
     # Define attribute methods like two?
     def self.define_predicate_method(klass, enum)
       klass.base_class.class_eval do
-        define_method "#{enum}?", lambda { attribute?(enum.to_s) }
+        define_method "#{enum}?", lambda { attribute?(enum) }
       end
     end
 
@@ -29,7 +29,7 @@ def self.define_predicate_method(klass, enum)
     #  @dog.breed.snoop? # => true
     #  @dog.breed.golden_retriever? # => false
     def attribute?(attribute)
-      to_s == attribute
+      self == attribute
     end
   end
 end

spec/classy_enum/active_record_spec.rb

@@ -43,10 +43,12 @@ class OtherDog < ActiveRecord::Base
   specify { Dog.new(:breed => '').should_not be_valid }
 
   context "with valid breed options" do
-    subject { Dog.new(:breed => :golden_retriever) }
-    it { should be_valid }
-    its(:breed) { should be_a(Breed::GoldenRetriever) }
-    its('breed.allow_blank') { should be_false }
+    [:golden_retriever, 'golden_retriever', Breed::GoldenRetriever.new].each do |option|
+      subject { Dog.new(:breed => option) }
+      it { should be_valid }
+      its(:breed) { should be_a(Breed::GoldenRetriever) }
+      its('breed.allow_blank') { should be_false }
+    end
   end
 
   context "with invalid breed options" do

spec/classy_enum/collection_spec.rb

@@ -26,6 +26,16 @@ class ClassyEnumCollection::Three < ClassyEnumCollection
     end
   end
 
+  context '#<=> (equality)' do
+    its(:first) { should == ClassyEnumCollection::One.new }
+    its(:first) { should == :one }
+    its(:first) { should == 'one' }
+    its(:first) { should_not == :two }
+    its(:first) { should_not == :not_found }
+
+    its(:max) { should == :three }
+  end
+
   context '.find, .detect, []' do
     let(:expected_enum) { ClassyEnumCollection::Two.new }