Workaround to fix lineno

test/test_helper.rb

@@ -34,12 +34,10 @@ module RenderAssertion
     assert_equal html, render(haml, options)
   end
 
-  def render(text, options = {}, base = nil, &block)
+  def render(text, options = {}, &block)
     scope  = options.delete(:scope)  || Object.new
     locals = options.delete(:locals) || {}
-    engine = Hamlit::HamlEngine.new(text, options)
-    return engine.to_html(base) if base
-    engine.to_html(scope, locals, &block)
+    eval Hamlit::HamlEngine.new(text, options).precompiled
   end
 end