Fix render partial with layout and no block

When using a render :partial with :layout call, without giving a block,
if the given :partial had another render :partial call, the layout was
not being rendered. This commit fixes this context by storing variables
before rendering the partial, so they are not overrided in any successive
call to render partials down the path. All ActionPack tests are ok.

2 files changed, 12 insertions, 0 deletions

diff --git a/actionpack/test/fixtures/test/_partial_with_partial.erb b/actionpack/test/fixtures/test/_partial_with_partial.erb
new file mode 100644
index 0000000000..ee0d5037b6
--- /dev/null
+++ b/actionpack/test/fixtures/test/_partial_with_partial.erb
@@ -0,0 +1,2 @@
+<%= render 'test/partial' %>
+partial with partial
diff --git a/actionpack/test/template/render_test.rb b/actionpack/test/template/render_test.rb
index 7736b936a1..08d50257d4 100644
--- a/actionpack/test/template/render_test.rb
+++ b/actionpack/test/template/render_test.rb
@@ -267,6 +267,16 @@ module RenderTestCases
       @view.render(:layout => "layouts/partial_and_yield") { "Content from block!" }
   end
 
+  def test_render_partial_and_layout_without_block_with_locals
+    assert_equal %(Before (Foo!)\npartial html\nAfter),
+      @view.render(:partial => 'test/partial', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
+  end
+
+  def test_render_partial_and_layout_without_block_with_locals_and_rendering_another_partial
+    assert_equal %(Before (Foo!)\npartial html\npartial with partial\n\nAfter),
+      @view.render(:partial => 'test/partial_with_partial', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
+  end
+
   def test_render_with_nested_layout
     assert_equal %(<title>title</title>\n\n<div id="column">column</div>\n<div id="content">content</div>\n),
       @view.render(:file => "test/nested_layout.erb", :layout => "layouts/yield")