@Test
    void testHealth() throws Exception {
        final AggregatedHttpResponse res = client.get("/internal/actuator/health").aggregate().get();
        assertThat(res.status()).isEqualTo(HttpStatus.OK);
        assertThat(res.contentType()).isEqualTo(toMediaType(ApiVersion.LATEST.getProducedMimeType()));

        final Map<String, Object> values = OBJECT_MAPPER.readValue(res.content().array(), JSON_MAP);
        assertThat(values).containsEntry("status", "UP");
    }
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