@Test
  public void testClearPolicies() {
    DQPWorkContext message = new DQPWorkContext();
    message.setSession(Mockito.mock(SessionMetadata.class));
    Mockito.stub(message.getSession().getVdb()).toReturn(new VDBMetaData());
    Map<String, DataPolicy> map = message.getAllowedDataPolicies();
    map.put("role", Mockito.mock(DataPolicy.class)); // $NON-NLS-1$
    assertFalse(map.isEmpty());

    message.setSession(Mockito.mock(SessionMetadata.class));
    Mockito.stub(message.getSession().getVdb()).toReturn(new VDBMetaData());
    map = message.getAllowedDataPolicies();
    assertTrue(map.isEmpty());
  }
  @Test
  public void testAnyAuthenticated() {
    DQPWorkContext message = new DQPWorkContext();
    SessionMetadata mock = Mockito.mock(SessionMetadata.class);
    message.setSession(mock);
    VDBMetaData vdb = new VDBMetaData();
    DataPolicyMetadata dpm = new DataPolicyMetadata();
    dpm.setAnyAuthenticated(true);
    vdb.addDataPolicy(dpm);
    Mockito.stub(mock.getVdb()).toReturn(vdb);

    // unauthenticated
    Map<String, DataPolicy> map = message.getAllowedDataPolicies();
    assertEquals(0, map.size());

    // authenticated
    message = new DQPWorkContext();
    Mockito.stub(mock.getSubject()).toReturn(new Subject());
    message.setSession(mock);
    map = message.getAllowedDataPolicies();
    assertEquals(1, map.size());
  }