Ensure :partial => @collection and :collection => @collection behaves same. [#884 state:resolved]

Signed-off-by: Pratik Naik <pratiknaik@gmail.com>

Author: ryanb

actionpack/lib/action_view/partials.rb

@@ -156,7 +156,7 @@ def render_partial(options = {}) #:nodoc:
           local_assigns.merge!(builder_partial_path.to_sym => partial_path)
           render_partial(:partial => builder_partial_path, :object => options[:object], :locals => local_assigns)
         when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::NamedScope::Scope
-          partial_path.any? ? render_partial(:collection => partial_path, :locals => local_assigns) : ""
+          render_partial_collection(options.except(:partial).merge(:collection => partial_path))
         else
           object = partial_path
           render_partial(

actionpack/test/activerecord/render_partial_with_record_identification_test.rb

@@ -39,6 +39,11 @@ def render_with_record_collection
     @developers = Developer.find(:all)
     render :partial => @developers
   end
+
+  def render_with_record_collection_and_spacer_template
+    @developer = Developer.find(1)
+    render :partial => @developer.projects, :spacer_template => 'test/partial_only'
+  end
 end
 
 class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
@@ -81,6 +86,11 @@ def test_render_with_record_collection
     assert_equal 'DavidJamisfixture_3fixture_4fixture_5fixture_6fixture_7fixture_8fixture_9fixture_10Jamis', @response.body
   end
 
+  def test_render_with_record_collection_and_spacer_template
+    get :render_with_record_collection_and_spacer_template
+    assert_equal 'Active Recordonly partialActive Controller', @response.body
+  end
+
   def test_rendering_partial_with_has_one_association
     mascot = Company.find(1).mascot
     get :render_with_has_one_association

actionpack/test/template/render_test.rb

@@ -95,6 +95,10 @@ def test_render_partial_with_nil_collection_should_return_nil
     assert_nil @view.render(:partial => "test/customer", :collection => nil)
   end
 
+  def test_render_partial_with_empty_array_should_return_nil
+    assert_nil @view.render(:partial => [])
+  end
+
   # TODO: The reason for this test is unclear, improve documentation
   def test_render_partial_and_fallback_to_layout
     assert_equal "Before (Josh)\n\nAfter", @view.render(:partial => "test/layout_for_partial", :locals => { :name => "Josh" })