Set template_format to html inside rjs templates so renders within it default to html.

actionpack/lib/action_view/base.rb

@@ -327,9 +327,6 @@ module ActionView #:nodoc:
         elsif (first_render = @_render_stack.first) && first_render.respond_to?(:format_and_extension) &&
             (template = self.view_paths["#{template_file_name}.#{first_render.format_and_extension}"])
           template
-        elsif template_format == :js && template = self.view_paths["#{template_file_name}.html"]
-          @template_format = :html
-          template
         else
           template = Template.new(template_path, view_paths)
 

actionpack/lib/action_view/template_handlers/rjs.rb

@@ -4,6 +4,7 @@ module ActionView
       include Compilable
 
       def compile(template)
+        "@template_format = :html;" +
         "controller.response.content_type ||= Mime::JS;" +
           "update_page do |page|;#{template.source}\nend"
       end

actionpack/test/controller/render_test.rb

@@ -246,15 +246,6 @@ class TestController < ActionController::Base
            :locals => { :local_name => name }
   end
 
-  def helper_method_to_render_to_string(*args)
-    render_to_string(*args)
-  end
-  helper_method :helper_method_to_render_to_string
-
-  def render_html_only_partial_within_inline
-    render :inline => "Hello world <%= helper_method_to_render_to_string :partial => 'test/partial_with_only_html_version' %>"
-  end
-
   def render_implicit_html_template
   end
 
@@ -948,11 +939,6 @@ class RenderTest < ActionController::TestCase
     assert_equal "Goodbye, Local David", @response.body
   end
 
-  def test_rendering_html_only_partial_within_inline_with_js
-    get :render_html_only_partial_within_inline, :format => :js
-    assert_equal "Hello world partial with only html version", @response.body
-  end
-
   def test_render_in_an_rjs_template_should_pick_html_templates_when_available
     [:js, "js"].each do |format|
       assert_nothing_raised do

actionpack/test/template/render_test.rb

@@ -136,12 +136,6 @@ module RenderTestCases
     assert_equal "Before (Josh)\n\nAfter", @view.render(:partial => "test/layout_for_partial", :locals => { :name => "Josh" })
   end
 
-  # TODO: The reason for this test is unclear, improve documentation
-  def test_render_js_partial_and_fallback_to_erb_layout
-    @view.template_format = :js
-    assert_equal "Before (Josh)\n\nAfter", @view.render(:partial => "test/layout_for_partial", :locals => { :name => "Josh" })
-  end
-
   # TODO: The reason for this test is unclear, improve documentation
   def test_render_missing_xml_partial_and_raise_missing_template
     @view.template_format = :xml