@Test
void should_be_outOfService_when_set_operation_is_false() throws Exception {

    doReturn(setFuture).when(client).set("__com.netflix.evcache.server.healthcheck", 300, "Greed is good!");
    doReturn(false).when(setFuture).get(5, TimeUnit.SECONDS);
    indicator.doHealthCheck(builder);
    verify(builder).outOfService();
}