@Test
        void testHealth_down() throws Exception {
            settableHealth.setHealth(Health.down().build());
            final AggregatedHttpResponse res = client.get("/internal/actuator/health").aggregate().get();
            assertThat(res.status()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
        }
This uses {@link com.linecorp.armeria.spring.ArmeriaAutoConfiguration} for integration tests.
{@code application-autoConfTest.yml} will be loaded with minimal settings to make it work.
spring/boot3-actuator-autoconfigure/src/test/java/com/linecorp/armeria/spring/actuate/ArmeriaSpringActuatorAutoConfigurationTest.java