def read(*parts):
    """
    Build an absolute path from *parts* and and return the contents of the
    resulting file.  Assume UTF-8 encoding.
    """
    with codecs.open(os.path.join(HERE, *parts), "rb", "utf-8") as f:
        return f.read()
def test_cache_middleware(self):
        req = Request.blank('/something', environ={'REQUEST_METHOD': 'GET'})
        resp = self.app(req.environ, start_response)
        self.assertTrue('swift.cache' in resp)
        self.assertTrue(isinstance(resp['swift.cache'], MemcacheRing))