public void addCompileSourceRoot(Project project, ProjectScope scope, Path sourceRoot) {
        MavenProject prj = getMavenProject(nonNull(project, "project"));
        String root = nonNull(sourceRoot, "sourceRoot").toAbsolutePath().toString();
        if (nonNull(scope, "scope") == ProjectScope.MAIN) {
            prj.addCompileSourceRoot(root);
        } else if (scope == ProjectScope.TEST) {
            prj.addTestCompileSourceRoot(root);

    }
  }

  public void testCreateParentDirectories_relativePath() throws IOException {
    Path path = FS.getPath("nonexistent.file");
    assertNull(path.getParent());
    assertNotNull(path.toAbsolutePath().getParent());
    MoreFiles.createParentDirectories(path); // test that there's no exception
  }

  public void testCreateParentDirectories_noParentsNeeded() throws IOException {

    }
  }

  public void testCreateParentDirectories_relativePath() throws IOException {
    Path path = FS.getPath("nonexistent.file");
    assertNull(path.getParent());
    assertNotNull(path.toAbsolutePath().getParent());
    MoreFiles.createParentDirectories(path); // test that there's no exception
  }

  public void testCreateParentDirectories_noParentsNeeded() throws IOException {

    // file. getCanonicalFile() can at least get the canonical form of the part of the path which
    // actually exists and then append the normalized remainder of the path to that.
    Path normalizedAbsolutePath = path.toAbsolutePath().normalize();
    Path parent = normalizedAbsolutePath.getParent();
    if (parent == null) {
      // The given directory is a filesystem root. All zero of its ancestors exist. This doesn't

    // file. getCanonicalFile() can at least get the canonical form of the part of the path which
    // actually exists and then append the normalized remainder of the path to that.
    Path normalizedAbsolutePath = path.toAbsolutePath().normalize();
    Path parent = normalizedAbsolutePath.getParent();
    if (parent == null) {
      // The given directory is a filesystem root. All zero of its ancestors exist. This doesn't