def METHOD_NAME(self):
    self.validator = mock.MagicMock(spec=RequestValidator)
    self.validator.is_pkce_required.return_value = False
    self.validator.get_code_challenge.return_value = None
    self.validator.get_default_redirect_uri.return_value = 'http://i.b./path'
    self.web = WebApplicationServer(self.validator,
            token_generator=self.inspect_client)
    self.mobile = MobileApplicationServer(self.validator,
            token_generator=self.inspect_client)
    self.legacy = LegacyApplicationServer(self.validator,
            token_generator=self.inspect_client)
    self.backend = BackendApplicationServer(self.validator,
            token_generator=self.inspect_client)
    self.token_uri = 'http://example.com/path'
    self.auth_uri = 'http://example.com/path?client_id=abc&response_type=token'
    # should be base64 but no added value in this unittest
    self.basicauth_client_creds = {"Authorization": "john:doe"}
    self.basicauth_client_id = {"Authorization": "john:"}