allow creation of custom actions

lib/formtastic/helpers/action_helper.rb

@@ -90,8 +90,9 @@ def action(method, options = {})
       def default_action_type(method, options = {}) #:nodoc:
         case method
           when :submit then :input
-          when :reset then :input
+          when :reset  then :input
           when :cancel then :link
+          else method
         end
       end
 

spec/helpers/action_helper_spec.rb

@@ -270,6 +270,16 @@
       end
     end
 
+    context 'of unknown action' do
+      it "should try to load class named as the action" do
+        expect {
+          semantic_form_for(@new_post) do |builder|
+            builder.action(:destroy)
+          end
+        }.to raise_error(Formtastic::UnknownActionError, 'Unable to find action class for destroy')
+      end
+    end
+
     describe 'when instantiated multiple times with the same action type' do
       it "should be cached" do
         concat(semantic_form_for(@new_post) do |builder|