Rename previous commit to wrapper_error_class and add a configuration test.

CHANGELOG.rdoc

@@ -1,3 +1,6 @@
+* enhancements
+  * Add error class on wrappers (by github.com/jduff)
+
 == 1.2.0
 
 * deprecation

lib/generators/simple_form/templates/simple_form.rb

@@ -17,7 +17,7 @@ SimpleForm.setup do |config|
   # config.wrapper_tag = :div
 
   # CSS class to add to the wrapper if the field has errors
-  # config.wrapper_errors_class = :fieldWithErrors
+  # config.wrapper_error_class = :fieldWithErrors
 
   # How the label text should be generated altogether with the required text.
   # config.label_text = lambda { |label, required| "#{required} #{label}" }

lib/simple_form.rb

@@ -33,8 +33,8 @@ module SimpleForm
   mattr_accessor :wrapper_tag
   @@wrapper_tag = :div
 
-  mattr_accessor :wrapper_errors_class
-  @@wrapper_errors_class = :fieldWithErrors
+  mattr_accessor :wrapper_error_class
+  @@wrapper_error_class = :fieldWithErrors
 
   # How the label text should be generated altogether with the required text.
   mattr_accessor :label_text

lib/simple_form/components/wrapper.rb

@@ -14,7 +14,7 @@ module SimpleForm
       end
 
       def errors_class
-        options[:wrapper_errors_class] || SimpleForm.wrapper_errors_class
+        options[:wrapper_error_class] || SimpleForm.wrapper_error_class
       end
 
       def wrapper_html_options

test/components/wrapper_test.rb

@@ -22,4 +22,11 @@ class WrapperTest < ActionView::TestCase
     with_error_for @user, :name
     assert_select 'div.fieldWithErrors'
   end
+
+  test 'wrapper should add chosen error class for attribute with errors' do
+    swap SimpleForm, :wrapper_error_class => "omgError" do
+      with_error_for @user, :name
+      assert_select 'div.omgError'
+    end
+  end
 end