dst[dstIndex + 2 * i + 2] = (byte) ((tmp[i] & 0x0F) + 0x41);
            }
            for (; i < 15; i++) {
                dst[dstIndex + 2 * i + 1] = (byte) 0x43;
                dst[dstIndex + 2 * i + 2] = (byte) 0x41;
            }
            dst[dstIndex + TYPE_OFFSET] = (byte) (((hexCode & 0xF0) >> 4) + 0x41);

            assertEquals(0x01, ACE.FLAGS_OBJECT_INHERIT, "FLAGS_OBJECT_INHERIT should be 0x01");
            assertEquals(0x02, ACE.FLAGS_CONTAINER_INHERIT, "FLAGS_CONTAINER_INHERIT should be 0x02");
            assertEquals(0x04, ACE.FLAGS_NO_PROPAGATE, "FLAGS_NO_PROPAGATE should be 0x04");
            assertEquals(0x08, ACE.FLAGS_INHERIT_ONLY, "FLAGS_INHERIT_ONLY should be 0x08");

        when(this.mechContext.getFlags()).thenReturn(0x1234);
        when(this.mechContext.initSecContext(any(byte[].class), eq(0), eq(0))).thenReturn(new byte[] { 0x01, 0x02 });

        // Act: len==0 triggers initial token construction
        byte[] out = ctx.initSecContext(null, 0, 0);

        // Assert: returns a SPNEGO token (opaque here but non-null/non-empty)

            dst[dstIndex + 2 * i + 1] = (byte) (((tmp[i] & 0xF0) >> 4) + 0x41);
            dst[dstIndex + 2 * i + 2] = (byte) ((tmp[i] & 0x0F) + 0x41);
        }
        for (; i < 15; i++) {
            dst[dstIndex + 2 * i + 1] = (byte) 0x43;
            dst[dstIndex + 2 * i + 2] = (byte) 0x41;
        }
        dst[dstIndex + TYPE_OFFSET] = (byte) (((this.hexCode & 0xF0) >> 4) + 0x41);

        int[] attributeFlags = { 0x01, // FILE_ATTRIBUTE_READONLY
                0x02, // FILE_ATTRIBUTE_HIDDEN
                0x04, // FILE_ATTRIBUTE_SYSTEM
                0x10, // FILE_ATTRIBUTE_DIRECTORY
                0x20, // FILE_ATTRIBUTE_ARCHIVE
                0x80, // FILE_ATTRIBUTE_NORMAL
                0x100, // FILE_ATTRIBUTE_TEMPORARY
                0x21, // Combination: ARCHIVE | READONLY

        assertEquals(0x02, Trans2FindFirst2.FLAGS_CLOSE_IF_END_REACHED);
        assertEquals(0x04, Trans2FindFirst2.FLAGS_RETURN_RESUME_KEYS);
        assertEquals(0x08, Trans2FindFirst2.FLAGS_RESUME_FROM_PREVIOUS_END);
        assertEquals(0x10, Trans2FindFirst2.FLAGS_FIND_WITH_BACKUP_INTENT);

        // Test information level constants
        assertEquals(1, Trans2FindFirst2.SMB_INFO_STANDARD);

        setPrivateField(response, "commonCapabilities", 0x2F); // 0010 1111

        // Then
        assertTrue(response.haveCapabilitiy(0x01)); // Has this bit
        assertTrue(response.haveCapabilitiy(0x0F)); // Has all these bits
        assertFalse(response.haveCapabilitiy(0x10)); // Doesn't have this bit
        assertFalse(response.haveCapabilitiy(0x40)); // Doesn't have this bit
    }

    @Test

        assertNotNull(hmac);
    }

    @Test
    void testEngineUpdateByte() {
        // Test engineUpdate(byte b)
        HMACT64 hmac = new HMACT64(TEST_KEY);
        hmac.engineUpdate((byte) 0x01);
        // No exception means success
    }

    @Test
    void testEngineUpdateByteArray() {
        // Test engineUpdate(byte[] input, int offset, int len)
        HMACT64 hmac = new HMACT64(TEST_KEY);

        byte[] server = hex("0102030405060708");
        byte[] client = hex("DEADBEEFCAFEBABE");

        // Act
        byte[] a = NtlmUtil.getNTLM2Response(pwdHash, server, client);
        server[7] ^= 0x01; // mutate
        byte[] b = NtlmUtil.getNTLM2Response(pwdHash, server, client);

        // Assert
        assertEquals(24, a.length);

        byte[] der = mech.getDER();
        byte[] nb = name.getBytes();
        int len = 2 + 2 + der.length + 4 + nb.length;
        byte[] out = new byte[len];
        int i = 0;
        out[i++] = 0x04; // TOK_ID[0]
        out[i++] = 0x01; // TOK_ID[1]
        out[i++] = (byte) ((der.length >> 8) & 0xFF);
        out[i++] = (byte) (der.length & 0xFF);
        System.arraycopy(der, 0, out, i, der.length);
        i += der.length;