MetadataTreeNode parent; // papa

    /** default # of children. Used for tree creation optimization only */
    int nChildren = 8;

    MetadataTreeNode[] children; // of cause

    public int getNChildren() {
        return nChildren;
    }

    public void setNChildren(int children) {
        nChildren = children;
    }

    // ------------------------------------------------------------------------

        for (DependencyNode child : root.getChildren()) {
            if (child.getArtifact() == null) {
                continue;
            }
            String childType = child.getArtifact().getProperty(ArtifactProperties.TYPE, "");
            if (!PROCESSOR_TYPE_IDS.contains(childType)) {
                continue;
            }
            for (DependencyNode transitive : child.getChildren()) {

        directoryLeaseManager.updateDirectoryCache(directoryPath, files);

        // Step 6: Verify cache is complete and populated
        assertTrue(cacheEntry.isComplete());
        assertEquals(2, cacheEntry.getChildren().size());
        assertTrue(cacheEntry.hasChild("document.txt"));
        assertTrue(cacheEntry.hasChild("subfolder"));

        // Step 7: Verify cached directory listing

        assertEquals(DirectoryCacheScope.IMMEDIATE_CHILDREN, entry.getScope());
        assertFalse(entry.isComplete());
        assertFalse(entry.hasChanges());
        assertTrue(entry.getChildren().isEmpty());
    }

    @Test
    public void testUpdateChild() {
        String childName = "file1.txt";
        long size = 1024L;
        long lastModified = System.currentTimeMillis();

    @Nullable
    Dependency getDependency();

    /**
     * Gets the child nodes of this node.
     *
     * @return the child nodes of this node, never {@code null}
     */
    @Nonnull
    List<Node> getChildren();

    /**
     * @return repositories of this node
     */
    @Nonnull
    List<RemoteRepository> getRemoteRepositories();

    /**
     * The repository where this artifact has been downloaded from.

            throws PlexusConfigurationException {
        List<MojoDescriptor> mojos = new ArrayList<>();

        PlexusConfiguration[] mojoConfigurations = c.getChild("mojos").getChildren("mojo");

        for (PlexusConfiguration component : mojoConfigurations) {
            mojos.add(buildComponentDescriptor(component, pluginDescriptor));
        }
        return mojos;
    }

        assertNotNull(cacheEntry);
        assertTrue(cacheEntry.isComplete());
        assertEquals(2, cacheEntry.getChildren().size());

        // Verify the cached files have correct names
        List<DirectoryCacheEntry.FileInfo> children = cacheEntry.getChildren();
        assertTrue(children.stream().anyMatch(f -> "file1.txt".equals(f.getName())));

 *
 * <p>If you have your own graph implementation based around a custom node type {@code MyNode},
 * which has a method {@code getChildren()} that retrieves its successors in a graph:
 *
 * {@snippet :
 * someGraphAlgorithm(startNode, MyNode::getChildren);
 * }
 *
 * <p>If you have some other mechanism for returning the successors of a node, or one that doesn't

        return exception;
    }

    public String getMessage() {
        return message;
    }

    public String getReference() {
        return reference;
    }

    public List<ExceptionSummary> getChildren() {
        return children;
    }

    entry.updateChild("file1.txt", attrs);
    
    assertTrue(entry.hasChild("file1.txt"));
    assertEquals(1, entry.getChildren().size());
    
    // Test removal
    entry.removeChild("file1.txt");
    assertFalse(entry.hasChild("file1.txt"));
    assertEquals(0, entry.getChildren().size());
}

@Test
public void testDirectoryLeaseManager() {