def test_insert_base_noreplace(self):
        """base tag dont need to be replaced"""
        html_in = html_target = '<html><head><base href="http://localhost:8000/products/"><body></body></html>'
        html_out = insert_base_url(html_in, "http://localhost:8000/users/blog.html")
        self.assertEqual(html_out, html_target)
base tag dont need to be replaced
slybot/slybot/tests/test_baseurl.py