assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test
    @DisplayName("Each error code mapping contains exactly two ints")
    void testEachPairLength() {
        for (int i = 0; i < DosError.DOS_ERROR_CODES.length; i++) {
            int[] pair = DosError.DOS_ERROR_CODES[i];

            assertNull(mock.getName());
        }

        @Test
        @DisplayName("Negative length is allowed via mock")
        void negativeLength() {
            FileEntry mock = mock(FileEntry.class);
            when(mock.length()).thenReturn(-10L);
            assertEquals(-10L, mock.length());
        }
    }

    @ParameterizedTest(name = "getType returns {0}")

        headers.put("Content-Length", Arrays.asList("100"));

        response.setHeaders(headers);

        Map<String, List<String>> result = response.getHeaders();
        assertNotNull(result);
        // Headers should be stored in lowercase
        assertTrue(result.containsKey("content-type"));
        assertTrue(result.containsKey("content-length"));
    }

    @Test

        this.offset = offset;
        this.length = length;
        this.flags = flags;

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Encodable#size()
     */
    @Override
    public int size() {
        return 24;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Encodable#encode(byte[], int)
     */

        encode_in(buf);
        this.length = buf.getIndex() - start;

        if (this.ptype == 0) {
            buf.setIndex(alloc_hint_index);
            this.alloc_hint = this.length - alloc_hint_index;
            buf.enc_ndr_long(this.alloc_hint);
        }

        buf.setIndex(start);
        encode_header(buf);
        buf.setIndex(start + this.length);
    }

    @Override

     * @param length maximum length to receive
     * @return number of bytes received
     * @throws IOException if an I/O error occurs
     */
    int recv(byte[] buf, int off, int length) throws IOException;

    /**
     * Send data to the pipe
     *
     * @param buf buffer containing data to send
     * @param off offset in the buffer
     * @param length length of data to send

        byte[] mac = PacMac.calculateMacArcfourHMACMD5(3, key, TEST_DATA);
        assertNotNull(mac);
        assertEquals(16, mac.length);

        // Test with a different key usage
        byte[] mac2 = PacMac.calculateMacArcfourHMACMD5(9, key, TEST_DATA);
        assertNotNull(mac2);
        assertEquals(16, mac2.length);

        // Test with another key usage
        byte[] mac3 = PacMac.calculateMacArcfourHMACMD5(23, key, TEST_DATA);

        @Test
        @DisplayName("Should handle negative length in verify method")
        void testVerifyNegativeLength() {
            byte[] data = new byte[128];
            boolean result = digest.verify(data, 0, -1, 0, response);
            assertFalse(result, "Should return false for negative length");
        }

        @Test
        @DisplayName("Should handle offset+length exceeding buffer size in verify method")

        this.num_sids = sids.length;
        this.sids = new lsarpc.LsarSidPtr[sids.length];
        for (int si = 0; si < sids.length; si++) {
            this.sids[si] = new lsarpc.LsarSidPtr();
            this.sids[si].sid = sids[si].unwrap(sid_t.class);
        }
    }

    LsarSidArrayX(final SID[] sids) {
        this.num_sids = sids.length;
        this.sids = new lsarpc.LsarSidPtr[sids.length];

        firstInstance.decode(originalBuffer, 0, originalBuffer.length);

        // Encode from first instance
        byte[] encodedBuffer = new byte[22];
        firstInstance.encode(encodedBuffer, 0);

        // Decode into second instance
        FileStandardInfo secondInstance = new FileStandardInfo();
        secondInstance.decode(encodedBuffer, 0, encodedBuffer.length);

        // Verify both instances have same values