import javax.security.auth.kerberos.KerberosPrincipal;

import org.junit.jupiter.api.Test;

/**
 * Tests for the PacMac class.
 */
class PacMacTest {

    private static final byte[] TEST_DATA = "test data".getBytes();
    private static final KerberosPrincipal TEST_PRINCIPAL = new KerberosPrincipal("test@REALM");

    /**
     * Test method for
     * {@link jcifs.pac.PacMac#calculateMacArcfourHMACMD5(int, java.security.Key, byte[])}.

                testEncryptionKey, testEncryptionKey); // Use same key for test

        byte[] plaintext = "Hello, SMB3 Encryption!".getBytes();
        long sessionId = 0x123456789ABCDEF0L;

        // When - Encrypt
        byte[] encrypted = context.encryptMessage(plaintext, sessionId);

        // Then - Verify encrypted message structure

    /**
     * Returned by {@link #getType()} if the resource this {@code SmbFile}
     * represents is a server.
     */
    public static final int TYPE_SERVER = 0x04;
    /**
     * Returned by {@link #getType()} if the resource this {@code SmbFile}
     * represents is a share.
     */
    public static final int TYPE_SHARE = 0x08;
    /**
     * Returned by {@link #getType()} if the resource this {@code SmbFile}

        try {
            resultData.setData(content.getBytes(charsetName));
        } catch (final UnsupportedEncodingException e) {
            if (logger.isInfoEnabled()) {
                logger.info("Invalid charsetName: " + charsetName + ". Changed to " + Constants.UTF_8, e);
            }
            charsetName = Constants.UTF_8;
            resultData.setData(content.getBytes(Constants.UTF_8_CHARSET));
        }

        // Verify subcommand
        assertEquals(SmbComTransaction.NET_SERVER_ENUM2 & 0xFF, (dst[0] & 0xFF) | ((dst[1] & 0xFF) << 8));

        // Verify description
        byte[] descr = NetServerEnum2.DESCR[0].getBytes("ASCII");
        byte[] writtenDescr = new byte[descr.length];
        System.arraycopy(dst, 2, writtenDescr, 0, descr.length);
        assertArrayEquals(descr, writtenDescr);

        int currentIndex = 2 + descr.length;

     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <code>SmbFile</code>
     * represents is a server.
     */
    int TYPE_SERVER = 0x04;
    /**
     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <code>SmbFile</code>
     * represents is a share.
     */
    int TYPE_SHARE = 0x08;
    /**
     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <code>SmbFile</code>

        Field[] fields = SecurityInfo.class.getDeclaredFields();
        Set<Integer> values = new HashSet<>();

        for (Field field : fields) {
            if (field.getType() == int.class) {
                int value = field.getInt(null);
                assertTrue(values.add(value), "Duplicate value found for field: " + field.getName());
            }
        }
    }

    @Test

                    parseTokenPage(tokenPattern, responseParams, entity);
                } else {
                    String content;
                    try {
                        content = new String(InputStreamUtil.getBytes(entity.getContent()), Constants.UTF_8_CHARSET);
                    } catch (final IOException e) {
                        content = e.getMessage();
                    }

    }

    @Test
    void testReadSecurityBuffer() {
        // Test readSecurityBuffer
        byte[] data = new byte[20];
        byte[] content = "Hello".getBytes();

        // Simulate a security buffer structure: length (2 bytes), length (2 bytes), offset (4 bytes)
        // Length = 5, Offset = 8
        ByteBuffer buffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN);

            byte[] buffer = "Test\0Other".getBytes();

            assertEquals(4, testBlock.readStringLength(buffer, 0, 10));
        }

        @Test
        @DisplayName("Test read string length without termination throws exception")
        void testReadStringLengthNoTermination() {
            byte[] buffer = "TestTest".getBytes();

            assertThrows(RuntimeCIFSException.class, () -> {