From c009e86fe12cb04e4359ce5ec063364561a6252c Mon Sep 17 00:00:00 2001
From: virusman <virusman@virusman.ru>
Date: Wed, 26 Dec 2012 23:53:42 +0400
Subject: Test nested fields with AssociationProxy mockup & fix
 AssociationProxy support in form helper

---
 actionpack/test/template/form_helper_test.rb | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'actionpack/test')

diff --git a/actionpack/test/template/form_helper_test.rb b/actionpack/test/template/form_helper_test.rb
index c730e3ab74..cc098b6be7 100644
--- a/actionpack/test/template/form_helper_test.rb
+++ b/actionpack/test/template/form_helper_test.rb
@@ -2164,6 +2164,29 @@ class FormHelperTest < ActionView::TestCase
     assert_dom_equal expected, output_buffer
   end
 
+  class FakeAssociatonProxy
+    def to_ary
+      [1, 2, 3]
+    end
+  end
+
+  def test_nested_fields_for_with_child_index_option_override_on_a_nested_attributes_collection_association_with_proxy
+    @post.comments = FakeAssociatonProxy.new
+
+    form_for(@post) do |f|
+      concat f.fields_for(:comments, Comment.new(321), :child_index => 'abc') { |cf|
+        concat cf.text_field(:name)
+      }
+    end
+
+    expected = whole_form('/posts/123', 'edit_post_123', 'edit_post', :method => 'patch') do
+      '<input id="post_comments_attributes_abc_name" name="post[comments_attributes][abc][name]" type="text" value="comment #321" />' +
+      '<input id="post_comments_attributes_abc_id" name="post[comments_attributes][abc][id]" type="hidden" value="321" />'
+    end
+
+    assert_dom_equal expected, output_buffer
+  end
+
   def test_nested_fields_for_index_method_with_existing_records_on_a_nested_attributes_collection_association
     @post.comments = Array.new(2) { |id| Comment.new(id + 1) }
 
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