assertFalse(ctx.isSupported(new ASN1ObjectIdentifier("1.3.6.1.4.1.99999")));
    }

    @Test
    @DisplayName("getSupportedMechs returns expected array")
    void getSupportedMechs_happyPath() {
        ASN1ObjectIdentifier[] mechs = ctx.getSupportedMechs();
        assertNotNull(mechs);
        assertArrayEquals(Kerb5Context.SUPPORTED_MECHS, mechs);
    }

    @Test