*
     * @param visitor the visitor to call back, must not be {@code null}
     * @return {@code true} to visit siblings nodes of this node as well, {@code false} to skip siblings
     */
    boolean accept(@Nonnull NodeVisitor visitor);

    /**
     * Returns a new tree starting at this node, filtering the children.
     * Note that this node will not be filtered and only the children

     * @param session The repository session to use for resolving the plugin artifacts, must not be {@code null}.
     * @return The dependency tree denoting the resolved plugin class path, never {@code null}.
     * @throws PluginResolutionException If any dependency could not be resolved.
     */
    DependencyNode resolve(
            Plugin plugin,

    private static boolean isTestPathElement(final String scope) {
        return true;
    }

    /**
     * Returns a filtered list of classpath elements. This method is invoked when the caller
     * requested that all dependencies are placed on the classpath, with no module-path element.
     *
     * @param scopeFilter a filter returning {@code true} for the artifact scopes to accept.

     * User property for reverse dependency tree. If enabled, Maven will record ".tracking" directory into local
     * repository with "reverse dependency tree", essentially explaining WHY given artifact is present in local
     * repository.
     * Default: {@code false}, will not record anything.
     *
     * @since 3.9.0
     */
    private static final String MAVEN_REPO_LOCAL_RECORD_REVERSE_TREE = "maven.repo.local.recordReverseTree";

        InternalSession.associate(rsession, session);

        List<ProjectBuildingResult> results = projectBuilder.build(
                Collections.singletonList(new File("src/test/resources/projects/tree/pom.xml")), true, request);

        assertEquals(3, results.size());
    }

    /* MNG-1995 */
    @Test
    void testBooleanInterpolation() throws Exception {
        PomTestWrapper pom = buildPom("boolean-interpolation");
        assertEquals(true, pom.getValue("repositories[1]/releases/enabled"));
        assertEquals(true, pom.getValue("build/resources[1]/filtering"));
    }

    /* MNG-3899 */
    @Test
    void testBuildExtensionInheritance() throws Exception {

        // v1-->v2
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.1", true, null, null, 2, 1));
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.2", true, null, null, 2, 2));

        // v1-->v3
        graph.addEdge(v1, v3, new MetadataGraphEdge("1.1", true, null, null, 2, 1));
        graph.addEdge(v1, v3, new MetadataGraphEdge("1.2", true, null, null, 4, 2));

        // v3-->v4

                new DefaultType("war", Language.JAVA_FAMILY, "war", null, true),
                new DefaultType("ear", Language.JAVA_FAMILY, "ear", null, true),
                new DefaultType("rar", Language.JAVA_FAMILY, "rar", null, true),
                new DefaultType("par", Language.JAVA_FAMILY, "par", null, true));
    }

        if (test.startsWith(REGEX_PREFIX)) {
            result = actualVersion.matches(test.substring(REGEX_PREFIX.length()));
        } else {
            if (test.startsWith("!")) {
                reverse = true;
                test = test.substring(1);
            }
            result = actualVersion.equals(test);
        }

        return reverse != result;
    }

    @BeforeEach
    void setUp() throws Exception {
        policy = new DefaultGraphConflictResolutionPolicy();
        e1 = new MetadataGraphEdge("1.1", true, null, null, 2, 1);
        e2 = new MetadataGraphEdge("1.2", true, null, null, 3, 2);
        e3 = new MetadataGraphEdge("1.2", true, null, null, 2, 3);
    }

    // ------------------------------------------------------------------------------------------
    @Test