adding missing test coverage

actionview/test/template/render_test.rb

@@ -324,6 +324,10 @@ def test_render_partial_using_collection
       @controller_view.render(customers, :greeting => "Hello")
   end
 
+  def test_render_partial_using_collection_without_path
+    assert_equal "hi good customer: david0", @controller_view.render([ GoodCustomer.new("david") ], greeting: "hi")
+  end
+
   def test_render_partial_without_object_or_collection_does_not_generate_partial_name_local_variable
     exception = assert_raises ActionView::Template::Error do
       @controller_view.render("partial_name_local_variable")
@@ -388,6 +392,14 @@ def test_render_inline_with_locals_and_compilable_custom_type
     ActionView::Template.unregister_template_handler :foo
   end
 
+  def test_render_body
+    assert_equal 'some body', @view.render(body: 'some body')
+  end
+
+  def test_render_plain
+    assert_equal 'some plaintext', @view.render(plain: 'some plaintext')
+  end
+
   def test_render_knows_about_types_registered_when_extensions_are_checked_earlier_in_initialization
     ActionView::Template::Handlers.extensions
     ActionView::Template.register_template_handler :foo, CustomHandler