private void verify(SessionProtocol protocol) {
        final AggregatedHttpResponse res = WebClient.builder(newUrl(protocol))
                                                    .factory(clientFactory)
                                                    .build()
                                                    .get("/ok").aggregate().join();
        assertThat(res.status()).isEqualTo(HttpStatus.OK);
        assertThat(res.contentUtf8()).isEqualTo("ok");
    }
This uses {@link ArmeriaAutoConfiguration} for integration tests.
{@code application-sslTest.yml} will be loaded with minimal settings to make it work.
spring/boot3-autoconfigure/src/test/java/com/linecorp/armeria/spring/ArmeriaSslConfigurationTest.java