Call init on every value that responds to it, even if no args are given.

lib/renum/enumerated_value_type_factory.rb

@@ -22,7 +22,7 @@ def create_values klass, values, &block
             value = klass.new(value_name)
             klass.const_set(value_name, value)
             value.instance_eval &instance_block if instance_block
-            value.init *init_args if init_args.any?
+            value.init *init_args if value.respond_to? :init
           end
           teardown_from_definition_in_block(klass)
         else

spec/renum_spec.rb

@@ -65,11 +65,12 @@ def abbr
   Small("Really really tiny")
   Medium("Sort of in the middle")
   Large("Quite big")
+  Unknown()
 
   attr_reader :description
 
-  def init description
-    @description = description
+  def init description = nil
+    @description = description || "NO DESCRIPTION GIVEN"
   end
 end
 
@@ -80,12 +81,12 @@ def init description
 end
 
 describe "enum with no values array and values declared in the block" do
-  it "provides an alternative means of declaring values where extra information can be provided for initialization" do
+  it "provides another way to declare values where an init method can take extra params" do
     Size::Small.description.should == "Really really tiny"
   end
 
   it "works the same as the basic form with respect to ordering" do
-    Size.values.should == [Size::Small, Size::Medium, Size::Large]
+    Size.values.should == [Size::Small, Size::Medium, Size::Large, Size::Unknown]
   end
 
   it "responds as expected to arbitrary method calls, in spite of using method_missing for value definition" do
@@ -95,6 +96,10 @@ def init description
   it "supports there being no extra data and no init() method defined, if you don't need them" do
     HairColor::BLONDE.name.should == "BLONDE"
   end
+
+  it "calls the init method even if no arguments are provided" do
+    Size::Unknown.description.should == "NO DESCRIPTION GIVEN"
+  end
 end
 
 enum :Rating do