@Test
public void fixedDelayAsyncHealthCheckTriggersSuccessfulInstantiationWithFixedDelay() throws Exception {

    HealthCheck asyncHealthCheck = new FixedDelayAsyncHealthCheck();
    AsyncHealthCheckDecorator asyncDecorator = new AsyncHealthCheckDecorator(asyncHealthCheck, mockExecutorService);
    verify(mockExecutorService, times(1)).scheduleWithFixedDelay(any(Runnable.class), eq(0L),
            eq(1L), eq(TimeUnit.SECONDS));
    assertThat(asyncDecorator.getHealthCheck()).isEqualTo(asyncHealthCheck);
}