@GwtIncompatible // Non-UTF-8 Charset
  public void testWhyUsAsciiIsDangerous() {
    byte[] b1 = "朝日新聞".getBytes(Charsets.US_ASCII);
    byte[] b2 = "聞朝日新".getBytes(Charsets.US_ASCII);
    byte[] b3 = "????".getBytes(Charsets.US_ASCII);
    byte[] b4 = "ニュース".getBytes(Charsets.US_ASCII);
    byte[] b5 = "スューー".getBytes(Charsets.US_ASCII);
    // Assert they are all equal (using the transitive property)
    assertThat(b1).isEqualTo(b2);

        // Simulate message exchange
        preauthService.updatePreauthHash(sessionId, "Message1".getBytes());
        preauthService.updatePreauthHash(sessionId, "Message2".getBytes());

        byte[] expectedHash = preauthService.getCurrentPreauthHash(sessionId);

        // Validation should pass with correct hash

@ExtendWith(MockitoExtension.class)
class HMACT64Test {

    private static final byte[] TEST_KEY = "testkey".getBytes();
    private static final byte[] LONG_TEST_KEY = "thisisalongtestkeythatislongerthan64bytesandshouldbetruncated".getBytes();
    private static final byte[] SHORT_TEST_KEY = "short".getBytes();
    private static final byte[] TEST_DATA = "testdata".getBytes();
    private static final byte[] EMPTY_DATA = new byte[0];

    @Mock

            byte[] buffer = new byte[300];

            contexts[0] = new TestCreateContextResponse("CONTEXT1".getBytes(StandardCharsets.UTF_8));
            contexts[1] = new TestCreateContextResponse("CONTEXT2".getBytes(StandardCharsets.UTF_8));
            contexts[2] = new TestCreateContextResponse("CONTEXT3".getBytes(StandardCharsets.UTF_8));

            // Decode each context
            for (int i = 0; i < contexts.length; i++) {

import org.junit.jupiter.api.Test;

class HMACT64Test {

    private static final byte[] TEST_KEY = "testkey".getBytes();
    private static final byte[] LONG_TEST_KEY = new byte[80]; // Longer than 64 bytes
    private static final byte[] SHORT_TEST_KEY = "short".getBytes();
    private static final byte[] TEST_DATA = "testdata".getBytes();
    private static final byte[] EMPTY_DATA = new byte[0];

    static {

        bb.putShort((short) 52);

        bb.position(22);
        bb.put("\\\\path".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        bb.position(38);
        bb.put("\\\\alt".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        bb.position(52);
        bb.put("NODE".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

            contexts[0] = new TestCreateContextRequest("CONTEXT1".getBytes(StandardCharsets.UTF_8));
            contexts[1] = new TestCreateContextRequest("CONTEXT2".getBytes(StandardCharsets.UTF_8));
            contexts[2] = new TestCreateContextRequest("CONTEXT3".getBytes(StandardCharsets.UTF_8));

            // Encode all contexts
            byte[] buffer = new byte[512];

      new SecretKeySpec("secret key".getBytes(UTF_8), "HmacMD5");
  private static final SecretKey SHA1_KEY =
      new SecretKeySpec("secret key".getBytes(UTF_8), "HmacSHA1");
  private static final SecretKey SHA256_KEY =
      new SecretKeySpec("secret key".getBytes(UTF_8), "HmacSHA256");
  private static final SecretKey SHA512_KEY =
      new SecretKeySpec("secret key".getBytes(UTF_8), "HmacSHA512");

        final byte[] data1 = "abc".getBytes();
        assertEquals("YWJj", Base64Util.encode(data1));

        // Test case 2: Single padding
        final byte[] data2 = "abcd".getBytes();
        assertEquals("YWJjZA==", Base64Util.encode(data2));

        // Test case 3: Double padding
        final byte[] data3 = "abcde".getBytes();
        assertEquals("YWJjZGU=", Base64Util.encode(data3));

        System.arraycopy("SHARE1".getBytes(StandardCharsets.US_ASCII), 0, data, 0, 6);
        data[14] = 0x00;
        data[15] = 0x00; // type = 0
        data[16] = 40;
        data[17] = 0;
        data[18] = 0;
        data[19] = 0; // remark offset

        // Entry 2: IPC$, type 3 (IPC), remark "Inter-Process Communication"
        System.arraycopy("IPC$".getBytes(StandardCharsets.US_ASCII), 0, data, 20, 4);