assertThat(expected).hasMessageThat().isEqualTo(msg);
  }

  public void testBadArguments_plusforspace() {
    // space can be a safe char if plusForSpace is false
    PercentEscaper unused = new PercentEscaper(" ", false);

    // space cannot be a safe char is plusForSpace is true
    String msg = "plusForSpace cannot be specified when space is a 'safe' character";
    IllegalArgumentException expected =

   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it
      throw new AssertionError("Cannot increase internal buffer any further");
    }
    char[] copy = new char[size];
    if (index > 0) {
      System.arraycopy(dest, 0, copy, 0, index);
    }

   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it
      throw new AssertionError("Cannot increase internal buffer any further");
    }
    char[] copy = new char[size];
    if (index > 0) {
      System.arraycopy(dest, 0, copy, 0, index);
    }

        t1.url = "smb://server1/share/file.txt";

        t2.numThreads = 5;
        t2.url = "smb://server2/share/file.txt";

        // Verify independence
        assertEquals(2, t1.numThreads, "t1 should have its own numThreads value");
        assertEquals(5, t2.numThreads, "t2 should have its own numThreads value");
        assertEquals("smb://server1/share/file.txt", t1.url, "t1 should have its own URL");

            throw new SmbException("Invalid server name in UNC path");
        }

        // Validate share name
        String share = parts[1];
        if (share.isEmpty() || share.endsWith("$") && share.length() == 1) {
            throw new SmbException("Invalid share name in UNC path");
        }
    }

    /**
     * Validate individual path components
     */

                () -> new SmbFileHandleImpl(cfg, new byte[] { 1, 2 }, null, "//server/share", 0, 0, 0, 0, 0L));
    }

    @Test
    @DisplayName("Constructor with null cfg throws NPE")
    void constructor_nullCfg_throwsNPE() {
        stubValidTree(7L, true, true);
        assertThrows(NullPointerException.class, () -> new SmbFileHandleImpl(null, 42, tree, "//server/share", 0, 0, 0, 0, 0L));
    }

    @Test

            + "abcdefghijklmnopqrstuvwxyz"
            + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
            + "1234567890";
    assertEquals(s, xmlEscaper.escape(s));

    // Test ASCII control characters.
    for (char ch = 0; ch < 0x20; ch++) {
      if (ch == '\t' || ch == '\n' || ch == '\r') {
        // Only these whitespace chars are permitted in XML,
        if (shouldEscapeWhitespaceChars) {

        when(mockReferral.getPathConsumed()).thenReturn(15); // e.g., "\\\\server\\share".length()
        when(mockReferral.next()).thenReturn(mockReferral); // Simple loop for the do-while
        assertDoesNotThrow(() -> dfsImpl.cache(mockContext, "\\\\server\\share\\path", mockReferral));
    }

  GOOD_FAST_HASH_256(Hashing.goodFastHash(256)),
  MD5(Hashing.md5()),
  MURMUR3_128(Hashing.murmur3_128()),
  MURMUR3_32(Hashing.murmur3_32()),
  MURMUR3_32_FIXED(Hashing.murmur3_32_fixed()),
  SHA1(Hashing.sha1()),
  SHA256(Hashing.sha256()),
  SHA384(Hashing.sha384()),
  SHA512(Hashing.sha512()),
  SIP_HASH24(Hashing.sipHash24()),
  FARMHASH_FINGERPRINT_64(Hashing.farmHashFingerprint64()),

        when(tree.acquire(false)).thenReturn(tree);
        when(tree.getTreeType()).thenReturn(7);
        when(tree.getShare()).thenReturn("SHARE");
        setTree(c, tree);

        assertEquals(7, c.getTreeType());
        assertEquals("SHARE", c.getConnectedShare());
        // try-with-resources closes the acquired tree
        verify(tree, atLeastOnce()).close();
    }

    @Test