}

    @TaskAction
    public void concatFiles() throws IOException {
        if (getHeaderLine() != null) {
            Files.write(getTarget().toPath(), (getHeaderLine() + '\n').getBytes(StandardCharsets.UTF_8));
        }

        // To remove duplicate lines
        LinkedHashSet<String> uniqueLines = new LinkedHashSet<>();
        for (File f : getFiles()) {

                SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_TRUNC, SmbConstants.FILE_WRITE_DATA,
                SmbConstants.DEFAULT_SHARING);

        byte[] data1 = "Hello ".getBytes();
        byte[] data2 = "World".getBytes();

        // When
        outputStream.write(data1);
        outputStream.write(data2);

        // Then - verify two write requests were sent

    assertThat(encoding.encode(decoded.getBytes(UTF_8))).isEqualTo(encoded);
  }

  private static void testEncodesWithOffset(
      BaseEncoding encoding, String decoded, int offset, int len, String encoded) {
    assertThat(encoding.encode(decoded.getBytes(UTF_8), offset, len)).isEqualTo(encoded);
  }

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

        // 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

        byte[] src = expected.getBytes("UTF-16LE");
        String result = response.readString(src, 0, src.length);
        assertEquals(expected, result);
    }

    @Test
    void testReadString_Oem() {
        response.useUnicode = false;
        String expected = "test";
        // Simulate OEM encoding with a null terminator
        byte[] src = (expected + "\0").getBytes(StandardCharsets.UTF_8);

        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++) {