assertEquals("123.123.123.123:9999", ftpInfo.getCacheKey());
        assertEquals("123.123.123.123", ftpInfo.getHost());
        assertEquals(9999, ftpInfo.getPort());
        assertEquals("/", ftpInfo.getParent());
        assertNull(ftpInfo.getName());

        value = "ftp://123.123.123.123/test.txt";
        ftpInfo = new FtpClient.FtpInfo(value, Constants.UTF_8);
        assertEquals(value, ftpInfo.toUrl());

                    logger.debug("Deleted thumbnail file: {}", path);
                }

                Path parent = path.getParent();
                while (deleteEmptyDirectory(parent)) {
                    parent = parent.getParent();
                }
            } catch (final IOException e) {
                logger.warn("Failed to delete thumbnail file: {}", path, e);
            }

            client.changeWorkingDirectory(ftpInfo.getParent());
            validateRequest(client);

            if (ftpInfo.getName() == null) {
                // root directory
                final Set<RequestData> requestDataSet = new HashSet<>();
                if (includeContent) {
                    try {
                        final FTPFile[] files = client.listFiles(ftpInfo.getParent(), FTPFileFilters.NON_NULL);

 *   <li>Supports a copy-free {@link #subArray} view, so methods that accept this type don't need to
 *       add overloads that accept start and end indexes.
 *   <li>Can be streamed without "breaking the chain": {@code foo.getBarInts().stream()...}.
 *   <li>Access to all collection-based utilities via {@link #asList} (though at the cost of
 *       allocating garbage).
 * </ul>
 *
 * <p>Disadvantages compared to {@code int[]}:
 *
 * <ul>

    void testGetParent() {
        SmbResourceLocatorImpl a = locator("smb://server/share/dir/file.txt");
        assertEquals("smb://server/share/dir/", a.getParent());

        SmbResourceLocatorImpl b = locator("smb://server/share/");
        assertEquals("smb://server/", b.getParent());
    }

    @Test
    @DisplayName("Canonical and UNC paths are computed and stable")
    void testCanonicalAndUNCPaths() {

            return this.url.getHost() + '/';
        }
        return "smb://";
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbResourceLocator#getParent()
     */
    @Override
    public String getParent() {
        String str = this.url.getAuthority();

        if (str != null && !str.isEmpty()) {
            final StringBuilder sb = new StringBuilder("smb://");

    return files;
}

@Override
public boolean exists() throws IOException {
    if (isDirectory() && directoryLeaseManager != null) {
        // Check parent directory cache first
        String parentPath = getParent();
        DirectoryCacheEntry parentCache = directoryLeaseManager.getCacheEntry(parentPath);
        
        if (parentCache != null && parentCache.isComplete()) {

        assertEquals(attrs, it.getSearchAttributes());
        assertEquals(wildcard, it.getWildcard());
        assertSame(parent, it.getParent());
        verify(tree, times(1)).acquire();
    }

    @Test
    @DisplayName("Constructor with open() returning null closes immediately and hasNext=false")
    void constructorOpenNullCloses() throws Exception {

        }
    }

    @Nested
    class WhenHandlingPaths {

        @Test
        void testGetParent() {
            // Act & Assert
            assertEquals("smb://localhost/share/", smbFile.getParent());
        }

        @Test
        void testGetCanonicalPath() {
            // Act & Assert
            assertEquals("smb://localhost/share/file.txt", smbFile.getCanonicalPath());
        }

        .containsExactlyElementsIn(locations);
  }

  public void testLocationEquals() {
    ClassLoader child = getClass().getClassLoader();
    ClassLoader parent = child.getParent();
    new EqualsTester()
        .addEqualityGroup(
            new ClassPath.LocationInfo(new File("foo.jar"), child),
            new ClassPath.LocationInfo(new File("foo.jar"), child))