for (int i = keyLen; i < 64; i++) {
            ipad[i] = 0x36;
            opad[i] = 0x5c;
        }

        // Calculate inner hash
        md5.reset();
        md5.update(ipad);
        md5.update(data);
        byte[] innerHash = md5.digest();

        // Calculate outer hash
        md5.reset();
        md5.update(opad);
        byte[] expectedResult = md5.digest(innerHash);

            Duration elapsed = clock.elapsedTime();
            Duration calculated = Duration.between(clock.startInstant(), now);

            // Allow for small timing differences (1ms) due to execution time between measurements
            assertTrue(
                    Math.abs(elapsed.toMillis() - calculated.toMillis()) <= 1,
                    "Elapsed time should match calculated duration between start and now");
        }
    }

     */
    public static Duration elapsed() {
        return get().elapsedTime();
    }

    /**
     * Returns a monotonically increasing instant.
     * <p>
     * The returned instant is calculated by adding the elapsed nanoseconds
     * since clock creation to the initial wall clock time. This ensures that
     * the time never goes backwards and maintains a consistent relationship
     * with the wall clock time.

        }
    }

    @Nested
    @DisplayName("Size Calculation Tests")
    class SizeCalculationTests {

        @Test
        @DisplayName("Should calculate size correctly with single lock")
        void testSizeWithSingleLock() {
            Smb2Lock[] singleLock = new Smb2Lock[] { new Smb2Lock(0L, 100L, Smb2Lock.SMB2_LOCKFLAG_EXCLUSIVE_LOCK) };

import jcifs.BaseTest;

/**
 * Test class for Crypto utility functionality
 */
@DisplayName("Crypto Utility Tests")
class CryptoTest extends BaseTest {

    @Test
    @DisplayName("Should calculate MD4 hash correctly")
    void testMD4Hash() {
        // Given
        String input = "Hello World";
        byte[] data = input.getBytes();

        // When
        MessageDigest md4 = Crypto.getMD4();

						for idx, sh := range parityData {
							calculated := splitData[idx]
							if !bytes.Equal(calculated, sh) {
								off := 0
								for i, v := range sh {
									if v != calculated[i] {
										off = i
										break
									}
								}
								calculated := calculated[off:]
								inFile := sh[off:]
								extra := ""
								if len(calculated) != len(inFile) {

        testInheritance("no-append-urls3");
    }

    /**
     * Tricky case: flat directory structure, but child directory != artifactId.
     * Model interpolation does not give same result when calculated from build or from repo...
     * This is why MNG-5000 fix in code is marked as bad practice (uses file names)
     * @throws IOException Model read problem
     */
    @Test

	if opts.MTime.IsZero() {
		fi.ModTime = UTCNow()
	}

	// Save successfully calculated md5sum.
	// for replica, newMultipartUpload would have already sent the replication ETag
	if fi.Metadata["etag"] == "" {
		if opts.UserDefined["etag"] != "" {
			fi.Metadata["etag"] = opts.UserDefined["etag"]
		} else { // fallback if not already calculated in handler.
			fi.Metadata["etag"] = getCompleteMultipartMD5(parts)
		}
	}

        @Test
        @DisplayName("Should calculate size for null hash algorithms and salt")
        void testSizeWithNullHashAlgosAndSalt() {
            PreauthIntegrityNegotiateContext context = new PreauthIntegrityNegotiateContext(mockConfig, null, null);

            assertEquals(4, context.size());
        }

        @Test
        @DisplayName("Should calculate size for empty arrays")

        @Test
        @DisplayName("Should calculate size correctly with no data")
        void testSizeWithNoData() {
            request.setData(new byte[0], 0, 0);
            int expectedSize = ((Smb2Constants.SMB2_HEADER_LENGTH + 48 + 7) / 8) * 8;
            assertEquals(expectedSize, request.size());
        }

        @Test
        @DisplayName("Should calculate size correctly with data")