old_contents: __doctests__ = ['scrapy.utils.template']
  
new_contents: import os
  from shutil import rmtree
  from tempfile import mkdtemp
  import unittest
  from scrapy.utils.template import render_templatefile
  
  
  __doctests__ = ['scrapy.utils.template']
  
  
  class UtilsRenderTemplateFileTestCase(unittest.TestCase):
  
      def setUp(self):
          self.tmp_path = mkdtemp()
  
      def tearDown(self):
          rmtree(self.tmp_path)
  
      def test_simple_render(self):
  
          context = dict(project_name='proj', name='spi', classname='TheSpider')
          template = u'from ${project_name}.spiders.${name} import ${classname}'
          rendered = u'from proj.spiders.spi import TheSpider'
  
          template_path = os.path.join(self.tmp_path, 'templ.py.tmpl')
          render_path = os.path.join(self.tmp_path, 'templ.py')
  
          with open(template_path, 'wb') as tmpl_file:
              tmpl_file.write(template.encode('utf8'))
          assert os.path.isfile(template_path)  # Failure of test itself
  
          render_templatefile(template_path, **context)
  
          self.assertFalse(os.path.exists(template_path))
          with open(render_path, 'rb') as result:
              self.assertEqual(result.read().decode('utf8'), rendered)
  
          os.remove(render_path)
          assert not os.path.exists(render_path)  # Failure of test iself
  
  if '__main__' == __name__:
      unittest.main()
  
subject: Test utils.template.render_templatefile()