public void testFindLeastFullRepository() throws Exception {
    Map repoMap =
        MapUtil.map(
            "local:one",
            new MyDF("/one", 1000),
            "local:two",
            new MyDF("/two", 3000),
            "local:three",
            new MyDF("/three", 2000));
    mgr.setRepoMap(repoMap);

    assertEquals("local:two", mgr.findLeastFullRepository());
  }