// Create PAC with unaligned buffer offset
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        writeLittleEndianInt(baos, 1); // bufferCount
        writeLittleEndianInt(baos, PacConstants.PAC_VERSION); // version
        writeLittleEndianInt(baos, PacConstants.LOGON_INFO); // type
        writeLittleEndianInt(baos, 10); // size
        writeLittleEndianLong(baos, 25); // Unaligned offset (not multiple of 8)

import org.junit.jupiter.api.Test;

/**
 * Tests for the PacSignature class.
 */
class PacSignatureTest {

    /**
     * Helper method to write integer in little-endian format.
     */
    private void writeLittleEndianInt(ByteArrayOutputStream baos, int value) {
        ByteBuffer buffer = ByteBuffer.allocate(4);
        buffer.order(ByteOrder.LITTLE_ENDIAN);
        buffer.putInt(value);
        baos.write(buffer.array(), 0, 4);
    }

        // Write a valid string structure
        String testString = "TEST";
        int totalChars = testString.length();
        writeLittleEndianInt(dos, totalChars); // totalChars
        writeLittleEndianInt(dos, 0); // unusedChars
        writeLittleEndianInt(dos, totalChars); // usedChars

        // Write the actual characters (as shorts in little-endian)
        for (char c : testString.toCharArray()) {