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

    void testType1MessageCreation() {
        // When
        Type1Message type1 = new Type1Message(mockContext);

        // Then
        assertNotNull(type1);
        // Note: getType() method does not exist in Type1Message
        assertTrue(type1.getFlags() != 0); // Should have some flags set
    }

    @Test
    @DisplayName("Should create Type 1 message with custom flags")

        // Write initial content
        try (OutputStream out = file.openOutputStream(false)) {
            out.write(initialContent.getBytes("UTF-8"));
        }

        // Overwrite with new content
        try (OutputStream out = file.openOutputStream(false)) {
            out.write(newContent.getBytes("UTF-8"));
        }

        // Verify new content
        try (InputStream in = file.getInputStream()) {

            byte[] data = "Hello World Test".getBytes();
            InputStream is = new ByteArrayInputStream(data);
            byte[] buffer = new byte[20];

            int bytesRead = Transport.readn(is, buffer, 0, 5);
            assertEquals(5, bytesRead);
            assertArrayEquals("Hello".getBytes(), java.util.Arrays.copyOfRange(buffer, 0, 5));
        }

        @Test

      Parameter param = params.get(i);
      if (i != indexOfParamToSetToNull) {
        args[i] = getDefaultValue(param.getType());
        Assert.assertTrue(
            "Can't find or create a sample instance for type '"
                + param.getType()
                + "'; please provide one using NullPointerTester.setDefault()",
            args[i] != null || isNullable(param));
      }
    }

        leaseContext = new LeaseV1CreateContextRequest(testKey, testState);
    }

    @Test
    @DisplayName("Should have correct context name")
    void testContextName() {
        assertArrayEquals("RqLs".getBytes(), leaseContext.getName());
        assertEquals("RqLs", LeaseV1CreateContextRequest.CONTEXT_NAME);
    }

    @Test
    @DisplayName("Should initialize with default values")
    void testDefaultConstructor() {

        String domain = "DOMAIN";
        byte[] domainBytes = domain.getBytes();
        for (int i = 0; i < domainBytes.length; i++) {
            message[112 + i * 2] = domainBytes[i];
            message[112 + i * 2 + 1] = 0;
        }

        // Add User "user" in Unicode at offset 124
        String user = "user";
        byte[] userBytes = user.getBytes();
        for (int i = 0; i < userBytes.length; i++) {

            ByteBuffer bb = ByteBuffer.wrap(dst).order(ByteOrder.LITTLE_ENDIAN);
            assertEquals(maxReferralLevel, bb.getShort());

            // Verify path encoding (UTF-16LE)
            byte[] pathBytes = path.getBytes(StandardCharsets.UTF_16LE);
            byte[] encodedPath = new byte[pathBytes.length];
            bb.get(encodedPath);
            assertArrayEquals(pathBytes, encodedPath);

            // Verify null terminator

                if (isQualifiedForInterpolation) {
                    for (Field currentField : clazz.getDeclaredFields()) {
                        Class<?> type = currentField.getType();
                        if (isQualifiedForInterpolation(currentField, type)) {
                            if (String.class == type) {
                                if (!Modifier.isFinal(currentField.getModifiers())) {