[helper/render.rb] fixed render_file's sync_variables. see detail:

  This line syncs variables from current action to newly created action:
    action.sync_variables(self.action)

  but later this line eliminates above effect:
    action.variables = variables.dup

  Assume we would like variables from current action, but
  would like to override (or hide, shadow) them by passing
  another hash of variables in render_file's second arguments.
  Then change that line to:
    action.variables.merge!(variables.dup)

  spec this behavior in SpecHelperRenderFile.

lib/innate/helper/render.rb

@@ -121,7 +121,7 @@ def render_file(filename, variables = {})
         action.node      = self.class
         action.engine    = self.action.engine
         action.instance  = action.node.new
-        action.variables = variables.dup
+        action.variables.merge!(variables.dup)
 
         yield(action) if block_given?
 

spec/innate/helper/render.rb

@@ -86,10 +86,12 @@ def layout
   FILE = File.expand_path('../view/aspect_hello.xhtml', __FILE__)
 
   def absolute
+    @bar = 'bar'
     render_file(FILE)
   end
 
   def absolute_with(foo, bar)
+    @foo = 'foo'
     render_file(FILE, :foo => foo, :bar => bar)
   end
 end
@@ -155,7 +157,7 @@ def absolute_with(foo, bar)
     behaves_like :rack_test
 
     it 'renders file from absolute path' do
-      get('/render_file/absolute').body.should == '{ ! }'
+      get('/render_file/absolute').body.should == '{ bar! }'
     end
 
     it 'renders file from absolute path with variables' do