@After
  public void cleanupFS() throws Exception {
    if (fs.exists(root)) {
      if (!fs.delete(root, true)) {
        throw new IOException("Failed to delete root test dir: " + root);
      }
      if (!fs.mkdirs(root)) {
        throw new IOException("Failed to create root test dir: " + root);
      }
    }
    EnvironmentEdgeManagerTestHelper.reset();
  }
Test that the {@link SnapshotDescription} helper is helping correctly.
hbase-server/src/test/java/org/apache/hadoop/hbase/snapshot/TestSnapshotDescriptionUtils.java