Adding tests for default label class

test/components/label_test.rb

@@ -205,4 +205,11 @@ class LabelTest < ActionView::TestCase
     with_label_for :project, :description, :string, :required => false
     assert_no_select 'label.required[for=project_description]'
   end
+  
+  test 'label should add chosen label class' do
+    swap SimpleForm, :label_class => :my_custom_class do
+      with_label_for @user, :name, :string
+      assert_select 'label.my_custom_class'
+    end
+  end
 end