ASN1InputStream ais = new ASN1InputStream(bais);
        ASN1Integer result = ASN1Util.as(ASN1Integer.class, ais);
        assertEquals(original, result);
    }

    @Test
    void testAs_ASN1InputStream_Failure() throws IOException {
        // Test failed casting from ASN1InputStream
        ASN1Boolean original = ASN1Boolean.TRUE;
        ByteArrayInputStream bais = new ByteArrayInputStream(original.getEncoded());