def request(self, method, path, params=None, body=''):
if not path:
path = '/'
if not params:
params = []
env = create_environ(path=path, method=method.upper(), query_string=urlencode(params), body=body)
resp = StartResponseMock()
result = self.app(env, resp)
resp.content = ''
if result:
resp.content = result[0].decode('utf-8')
return resp
