properly handle lists of lists. Thanks @adrianpike for reporting!

1 files changed, 9 insertions, 0 deletions

diff --git a/actionpack/test/template/form_options_helper_test.rb b/actionpack/test/template/form_options_helper_test.rb
index d3e0cc41a9..469718e1bd 100644
--- a/actionpack/test/template/form_options_helper_test.rb
+++ b/actionpack/test/template/form_options_helper_test.rb
@@ -596,6 +596,15 @@ class FormOptionsHelperTest < ActionView::TestCase
     )
   end
 
+  def test_list_of_lists
+    @post = Post.new
+    @post.category = ""
+    assert_dom_equal(
+      "<select id=\"post_category\" name=\"post[category]\"><option value=\"\">Please select</option>\n<option value=\"\"></option>\n<option value=\"number\">Number</option>\n<option value=\"text\">Text</option>\n<option value=\"boolean\">Yes/No</option></select>",
+      select("post", "category", [["Number", "number"], ["Text", "text"], ["Yes/No", "boolean"]], :prompt => true, :include_blank => true)
+    )
+  end
+
   def test_select_with_selected_value
     @post = Post.new
     @post.category = "<mus>"