TestApplication application = new TestApplication();
    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);
    when(service.awaitTermination(2, SECONDS)).thenThrow(new InterruptedException());
    application.shutdown();
    verify(service).shutdown();
  }

  public void testGetExitingExecutorService_executorSetToUseDaemonThreads() {

    TestApplication application = new TestApplication();
    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);
    when(service.awaitTermination(2, SECONDS)).thenThrow(new InterruptedException());
    application.shutdown();
    verify(service).shutdown();
  }

  public void testGetExitingExecutorService_executorSetToUseDaemonThreads() {

            when(mockStrategies.get(0).isApplicable(context)).thenReturn(true);
            when(mockStrategies.get(0).apply(Mockito.eq(context), Mockito.any()))
                    .thenThrow(new RuntimeException("Strategy failed"));

            when(mockStrategies.get(1).isApplicable(context)).thenReturn(false);
            when(mockStrategies.get(2).isApplicable(context)).thenReturn(false);