### Question:
AppEnvClusterService { public List<AppEnvCluster> createAppEnvCluster(CreateClusterReqDTO createClusterReqDTO) { return appEnvClusterFactory.createAppEnvClusters(createClusterReqDTO); }  List<AppEnvCluster> findClusters(String env, long appId); List<AppEnvCluster> findClusters(String env, String appCode); AppEnvCluster getAppEnvCluster(long appId, String env, String clusterName); void deleteAppEnvCluster(AppEnvCluster appEnvCluster); List<AppEnvCluster> createAppEnvCluster(CreateClusterReqDTO createClusterReqDTO);  }### Answer:
@Test public void createAppEnvCluster() { String clusterName = "cluster-test"; String env = "dev"; App app = new App(35L); AppEnvCluster appEnvCluster = new AppEnvCluster(clusterName, env, app); }