ASN1Integer result = ASN1Util.as(ASN1Integer.class, tagged);
        assertSame(content, result);
    }

    @Test
    void testAs_ASN1TaggedObject_Failure() {
        // Test failed casting from tagged object
        ASN1Integer content = new ASN1Integer(789);
        ASN1TaggedObject tagged = new DERTaggedObject(true, 1, content);