Fix leaking special form_with attributes into html attributes

Special form_with attributes `skip_default_ids` and `allow_method_names_outside_object`
attributes are leaking into html attributes of option select tag helpers.

1 files changed, 17 insertions, 0 deletions

diff --git a/actionview/test/template/form_helper/form_with_test.rb b/actionview/test/template/form_helper/form_with_test.rb
index ed1683bad2..f07e494ee3 100644
--- a/actionview/test/template/form_helper/form_with_test.rb
+++ b/actionview/test/template/form_helper/form_with_test.rb
@@ -464,6 +464,23 @@ class FormWithActsLikeFormForTest < FormWithTest
     end
   end
 
+  def test_form_with_with_collection_select
+    post = Post.new
+    def post.active; false; end
+    form_with(model: post) do |f|
+      concat f.collection_select(:active, [true, false], :to_s, :to_s)
+    end
+
+    expected = whole_form("/posts") do
+      "<select name='post[active]' id='post_active'>" \
+      "<option value='true'>true</option>\n" \
+      "<option selected='selected' value='false'>false</option>" \
+      "</select>"
+    end
+
+    assert_dom_equal expected, output_buffer
+  end
+
   def test_form_with_with_collection_radio_buttons
     post = Post.new
     def post.active; false; end