public void testTruncateIllegalArguments() {
    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", 2, "..."));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", 8, "1234567890"));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", -1, "..."));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", -1, ""));
  }

  public void testTruncateIllegalArguments() {
    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", 2, "..."));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", 8, "1234567890"));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", -1, "..."));

    assertThrows(IllegalArgumentException.class, () -> Ascii.truncate("foobar", -1, ""));
  }

/** Tests for {@code Hashing}. */
@GwtCompatible
@NullMarked
public class HashingTest extends TestCase {
  public void testSmear() {
    assertEquals(1459320713, smear(754102528));
    assertEquals(-160560296, smear(1234567890));
    assertEquals(-1017931171, smear(1));
    assertEquals(-1350072884, smear(-2000000000));
    assertEquals(-809843551, smear(2000000000));
    assertEquals(-309370926, smear(-1155484576));

        @Test
        @DisplayName("Test expiration property")
        void testExpirationProperty() {
            assertNull(testBlock.getExpiration());
            testBlock.setExpiration(123456789L);
            assertEquals(123456789L, testBlock.getExpiration());
        }
    }

    @Nested
    @DisplayName("DFS Resolution Tests")
    class DFSResolutionTests {

        @BeforeEach
        void setup() {

    void testDecodeWithNegativeIndexNumber() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[8];
        long expectedIndexNumber = -1234567890L;

        // Encode test data
        SMBUtil.writeInt8(expectedIndexNumber, buffer, 0);

        // Decode
        int bytesDecoded = fileInternalInfo.decode(buffer, 0, buffer.length);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(baos);

    /* Write out various test values NORMALLY */
    out.write(new byte[] {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}); // 10 bytes of junk to skip
    initializeData(out);

    byte[] data = baos.toByteArray();

    DataInput in = new LittleEndianDataInputStream(new ByteArrayInputStream(data));
    int bytesSkipped = 0;

        mockResponse.error();

        // Verify that the method was called
        verify(mockResponse, times(1)).error();
    }

    @Test
    void testGetExpiration() {
        Long expiration = 123456789L;
        when(mockResponse.getExpiration()).thenReturn(expiration);
        assertEquals(expiration, mockResponse.getExpiration());

        // Test null expiration

        sitePath = "www.google.com";
        docMap.put(fieldName, urlLink);
        assertEquals(sitePath, viewHelper.getSitePath(docMap));

        urlLink = "smb://123.45.678.91/share1";
        sitePath = "123.45.678.91/share1";
        docMap.put(fieldName, urlLink);
        assertEquals(sitePath, viewHelper.getSitePath(docMap));

        urlLink = "file:/home/user/";
        sitePath = "/home/user/";

        stubValidTree(6L, true, false); // SMB1

        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, 42, tree, "//s/share", 0xA, 0xB, 0xC, 0xD, 0L);

        long lastWrite = 123456789L;
        h.close(lastWrite);

        // Verify SMB1 close path uses request + response overload

        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })
        void testGetBytesWithVariousInputs(String input) {
            // When
            byte[] result = Strings.getBytes(input, StandardCharsets.UTF_8);

            // Then