f.setPath("/");
List<String> paths = new ArrayList<String>();
Cursor c = t.query(f, head);
while (c.next()) {
paths.add(c.currentPath());
}
Collections.sort(paths);
assertEquals(Arrays.asList(
"/", "/children", "/children/c1", "/children/c2",
"/children/c3", "/children/c4", "/parents",