bug fix for simple_form passing an array into options['class']

Gemfile

@@ -1,4 +1,8 @@
 source "http://rubygems.org"
 
+group :test do
+  gem 'rails', '> 3.2.0'
+end
+
 # Specify your gem's dependencies in form_helper_css.gemspec
 gemspec

lib/form_helper_css/form_helper_css.rb

@@ -9,7 +9,10 @@ module TagHelper
       def css_options_for_tag(name, options={})
         name = name.to_sym
         options = options.stringify_keys
+        class_was_array = options['class'].is_a?(Array)
+        options['class'] = options['class'].join(' ') if class_was_array
         if FORM_HELPER_CSS_OPTIONS[:append] == false && options.has_key?('class')
+          options['class'] = options['class'].split(' ') if class_was_array
           return options
         elsif name == :input and options['type']
           return options if (options['type'] == 'hidden')
@@ -30,6 +33,7 @@ def css_options_for_tag(name, options={})
         if options['class']
           options['class'] = options['class'].to_s.strip.split(/\s+/).uniq.join(' ') # de-dup the class list
         end
+        options['class'] = options['class'].split(' ') if class_was_array
         options
       end
 

lib/form_helper_css/version.rb

@@ -1,3 +1,3 @@
 module FormHelperCss
-  VERSION = "0.0.1"
+  VERSION = "0.0.2"
 end

test/form_helper_css_test.rb

@@ -19,7 +19,7 @@ def test_tag_helper
     assert_equal '<br />', tag(:br)
     assert_equal '<p></p>', content_tag(:p, '')
     assert_equal '<input type="text" />', tag(:input, :type => 'text', :class => nil)
-    assert_equal '<textarea></textarea>', content_tag(:textarea, '', :class => nil)
+    assert_equal "<textarea>\n</textarea>", content_tag(:textarea, '', :class => nil)
   end
 
   def test_url_helper
@@ -66,6 +66,11 @@ def test_form_tag_helper_with_class_and_append
     assert_match 'class="foo text"', text_field_tag('text', nil, :class => 'foo')
   end
 
+  def test_css_options_for_tag_with_class_array
+    ActionView::Helpers::TagHelper::FORM_HELPER_CSS_OPTIONS.merge!(:append => true)
+    assert_equal ['foo', 'bar', 'checkbox'], css_options_for_tag('input', :type => 'checkbox', :class => ['foo', :bar])['class']
+  end
+
 
   def test_form_helper
     assert_match 'class="checkbox"', check_box(:object, :field)