def METHOD_NAME(self):
    self.validator = MagicMock(wraps=RequestValidator())
    self.validator.client_authentication_required.return_value = True
    self.validator.authenticate_client.return_value = True
    self.validator.revoke_token.return_value = True
    self.endpoint = RevocationEndpoint(self.validator)
    self.uri = 'https://example.com/revoke_token'
    self.headers = {
        'Content-Type': 'application/x-www-form-urlencoded',
    }
    self.resp_h = {
        'Cache-Control': 'no-store',
        'Content-Type': 'application/json',
        'Pragma': 'no-cache'
    }