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

      assertThat(root.getParent()).isNull();
      assertThat(root.toRealPath().getParent()).isNull();
      MoreFiles.createParentDirectories(root); // test that there's no exception
    }
  }

  public void testCreateParentDirectories_relativePath() throws IOException {
    Path path = FS.getPath("nonexistent.file");
    assertThat(path.getParent()).isNull();

        MavenProject project0 = getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

        assertNotNull(project1.getParent(), "Parent is null");
        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        Map map = project1.getArtifactMap();

        assertNotNull(map, "No artifacts");
        assertFalse(map.isEmpty(), "No Artifacts");

                        Files.createDirectories(path.getParent());
                        Files.copy(zis, path, StandardCopyOption.REPLACE_EXISTING);
                    } else if ("css".equals(names[0])) {
                        names[0] = themeName;
                        final Path path = ResourceUtil.getCssPath(names);
                        Files.createDirectories(path.getParent());

            assertEquals("smb1://server/share/", new SmbFile("smb1://server/share/file.txt").getParent());
            // Test parent of a directory
            assertEquals("smb1://server/share/", new SmbFile("smb1://server/share/dir/").getParent());
            // Test parent of a share
            assertEquals("smb1://server/", new SmbFile("smb1://server/share/").getParent());
            // Test parent of a server

        String groupId = model.getGroupId();
        if (groupId == null && model.getParent() != null) {
            groupId = model.getParent().getGroupId();
        }

        String artifactId = model.getArtifactId();

        String version = model.getVersion();
        if (version == null && model.getParent() != null) {
            version = model.getParent().getVersion();
        }
        if (version == null) {

            }
            String[] parts = path.split("/");
            return parts[parts.length - 1];
        }

        @Override
        public String getParent() {
            if (path == null || path.isEmpty() || path.equals("/")) {
                return "smb://";
            }
            int lastSlash = path.lastIndexOf('/');
            if (lastSlash <= 0) {

      assertThat(root.getParent()).isNull();
      assertThat(root.toRealPath().getParent()).isNull();
      MoreFiles.createParentDirectories(root); // test that there's no exception
    }
  }

  public void testCreateParentDirectories_relativePath() throws IOException {
    Path path = FS.getPath("nonexistent.file");
    assertThat(path.getParent()).isNull();

        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load everything...
        MavenProject project1 = getProjectWithDependencies(pom1);

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        System.out.println("Project " + project1.getId() + " " + project1);
        Set set = project1.getArtifacts();
        assertNotNull(set, "No artifacts");

    }

    @Override
    public void merge(File current, File result) throws RepositoryException {
        try {
            if (current.exists()) {
                Files.createDirectories(result.toPath().getParent());
                Files.copy(current.toPath(), result.toPath());
            }
            ArtifactRepository localRepo = new MetadataRepository(result);
            metadata.storeInLocalRepository(localRepo, localRepo);