return new ASN1ObjectIdentifier("1.2.840.113554.1.2.2");
    }

    private static byte[] oidDer() {
        // Full DER encoding of the OID
        try {
            return testOid().toASN1Primitive().getEncoded();
        } catch (java.io.IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Test
    @DisplayName("Parses a valid buffer and exposes fields")

        // Create a custom base object that throws IOException
        ASN1Encodable badBase = new ASN1Encodable() {
            @Override
            public ASN1Primitive toASN1Primitive() {
                // Return a primitive that will throw IOException when getEncoded is called
                return new DEROctetString(new byte[0]) {
                    @Override