@Test
public void testUnlockFileSet() throws Exception {

  ZooKeeperManager mockZKManager = mock(ZooKeeperManager.class);
  String fileSet = "test_fileset";
  doNothing().when(mockZKManager).unlockFileSet(anyString());
  TerrapinAdmin.unlockFileSet(mockZKManager, fileSet);
  verify(mockZKManager, times(1)).unlockFileSet(eq(fileSet));
}