    @Test
    public void testValidation() {

        StepVerifier.create(CLIENT.getCredentialManager().valid(credential))
                .expectSubscription()
                .expectNextMatches(validate ->
                        validate.getUserId() == 120074641L &&
                                Objects.equals(validate.getLogin(), "sandalphon_ai") &&
                                validate.getScopes().contains(GlitchScope.CHAT_READ)
                ).expectComplete()
                .verify();
    }