@BeforeEach
    void setUp() {
        server = new KubernetesMockServer();
        server.start();
        client = server.createClient(getHttpClientFactory());
    }
Tests a {@link HttpClient} at or below the {@link KubernetesClient} level.
kubernetes/src/test/java/com/linecorp/armeria/client/kubernetes/ArmeriaHttpClientTest.java