1 files changed, 10 insertions, 0 deletions
diff --git a/actionpack/test/template/render_test.rb b/actionpack/test/template/render_test.rb
index 88ed8664c2..3ce1d20bd9 100644
--- a/actionpack/test/template/render_test.rb
+++ b/actionpack/test/template/render_test.rb
@@ -54,6 +54,16 @@ module RenderTestCases
     assert_equal "Hello world", @view.render(:template => "test/one", :formats => [:html])
   end
 
+  def test_render_partial_implicitly_use_format_of_the_rendered_partial
+    @view.lookup_context.formats = [:html]
+    assert_equal "Third level", @view.render(:template => "test/html_template")
+  end
+
+  def test_render_partial_use_last_prepended_format_for_partials_with_the_same_names
+    @view.lookup_context.formats = [:html]
+    assert_equal "\nHTML Template, but JSON partial", @view.render(:template => "test/change_priorty")
+  end
+
   def test_render_template_with_a_missing_partial_of_another_format
     @view.lookup_context.formats = [:html]
     assert_raise ActionView::Template::Error, "Missing partial /missing with {:locale=>[:en], :formats=>[:json], :handlers=>[:erb, :builder]}" do