policy-agent/src/test/java/org/oransc/policyagent/ApplicationTest.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   6  * %%
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ========================LICENSE_END===================================
  19  */
  20
  21 package org.oransc.policyagent;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.awaitility.Awaitility.await;
  25 import static org.junit.jupiter.api.Assertions.assertEquals;
  26 import static org.junit.jupiter.api.Assertions.assertTrue;
  27 import static org.mockito.ArgumentMatchers.any;
  28 import static org.mockito.Mockito.doReturn;
  29
  30 import com.google.gson.Gson;
  31 import com.google.gson.GsonBuilder;
  32 import com.google.gson.JsonArray;
  33 import com.google.gson.JsonElement;
  34 import com.google.gson.JsonParser;
  35
  36 import java.nio.charset.StandardCharsets;
  37 import java.time.Duration;
  38 import java.time.Instant;
  39 import java.util.ArrayList;
  40 import java.util.List;
  41
  42 import org.junit.jupiter.api.AfterEach;
  43 import org.junit.jupiter.api.BeforeEach;
  44 import org.junit.jupiter.api.Test;
  45 import org.junit.jupiter.api.extension.ExtendWith;
  46 import org.oransc.policyagent.clients.AsyncRestClient;
  47 import org.oransc.policyagent.configuration.ApplicationConfig;
  48 import org.oransc.policyagent.configuration.ImmutableRicConfig;
  49 import org.oransc.policyagent.configuration.RicConfig;
  50 import org.oransc.policyagent.controllers.PolicyInfo;
  51 import org.oransc.policyagent.controllers.ServiceRegistrationInfo;
  52 import org.oransc.policyagent.controllers.ServiceStatus;
  53 import org.oransc.policyagent.exceptions.ServiceException;
  54 import org.oransc.policyagent.repository.ImmutablePolicy;
  55 import org.oransc.policyagent.repository.ImmutablePolicyType;
  56 import org.oransc.policyagent.repository.Lock.LockType;
  57 import org.oransc.policyagent.repository.Policies;
  58 import org.oransc.policyagent.repository.Policy;
  59 import org.oransc.policyagent.repository.PolicyType;
  60 import org.oransc.policyagent.repository.PolicyTypes;
  61 import org.oransc.policyagent.repository.Ric;
  62 import org.oransc.policyagent.repository.Ric.RicState;
  63 import org.oransc.policyagent.repository.Rics;
  64 import org.oransc.policyagent.repository.Services;
  65 import org.oransc.policyagent.tasks.RicSupervision;
  66 import org.oransc.policyagent.tasks.ServiceSupervision;
  67 import org.oransc.policyagent.utils.MockA1Client;
  68 import org.oransc.policyagent.utils.MockA1ClientFactory;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71 import org.springframework.beans.factory.annotation.Autowired;
  72 import org.springframework.boot.test.context.SpringBootTest;
  73 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
  74 import org.springframework.boot.test.context.TestConfiguration;
  75 import org.springframework.boot.web.server.LocalServerPort;
  76 import org.springframework.context.ApplicationContext;
  77 import org.springframework.context.annotation.Bean;
  78 import org.springframework.http.HttpStatus;
  79 import org.springframework.http.ResponseEntity;
  80 import org.springframework.test.context.junit.jupiter.SpringExtension;
  81 import org.springframework.web.reactive.function.client.WebClientResponseException;
  82
  83 import reactor.core.publisher.Mono;
  84 import reactor.test.StepVerifier;
  85 import reactor.util.annotation.Nullable;
  86
  87 @ExtendWith(SpringExtension.class)
  88 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
  89 public class ApplicationTest {
  90     private static final Logger logger = LoggerFactory.getLogger(ApplicationTest.class);
  91
  92     @Autowired
  93     ApplicationContext context;
  94
  95     @Autowired
  96     private Rics rics;
  97
  98     @Autowired
  99     private Policies policies;
 100
 101     @Autowired
 102     private PolicyTypes policyTypes;
 103
 104     @Autowired
 105     MockA1ClientFactory a1ClientFactory;
 106
 107     @Autowired
 108     RicSupervision supervision;
 109
 110     @Autowired
 111     Services services;
 112
 113     private static Gson gson = new GsonBuilder() //
 114         .serializeNulls() //
 115         .create(); //
 116
 117     public static class MockApplicationConfig extends ApplicationConfig {
 118         @Override
 119         public String getLocalConfigurationFilePath() {
 120             return ""; // No config file loaded for the test
 121         }
 122     }
 123
 124     /**
 125      * Overrides the BeanFactory.
 126      */
 127     @TestConfiguration
 128     static class TestBeanFactory {
 129         private final PolicyTypes policyTypes = new PolicyTypes();
 130         private final Services services = new Services();
 131         private final Policies policies = new Policies();
 132         MockA1ClientFactory a1ClientFactory = null;
 133
 134         @Bean
 135         public ApplicationConfig getApplicationConfig() {
 136             return new MockApplicationConfig();
 137         }
 138
 139         @Bean
 140         MockA1ClientFactory getA1ClientFactory() {
 141             if (a1ClientFactory == null) {
 142                 this.a1ClientFactory = new MockA1ClientFactory(this.policyTypes);
 143             }
 144             return this.a1ClientFactory;
 145         }
 146
 147         @Bean
 148         public PolicyTypes getPolicyTypes() {
 149             return this.policyTypes;
 150         }
 151
 152         @Bean
 153         Policies getPolicies() {
 154             return this.policies;
 155         }
 156
 157         @Bean
 158         Services getServices() {
 159             return this.services;
 160         }
 161
 162         @Bean
 163         public ServiceSupervision getServiceSupervision() {
 164             Duration checkInterval = Duration.ofMillis(1);
 165             return new ServiceSupervision(this.services, this.policies, this.getA1ClientFactory(), checkInterval);
 166         }
 167     }
 168
 169     @LocalServerPort
 170     private int port;
 171
 172     @BeforeEach
 173     public void reset() {
 174         rics.clear();
 175         policies.clear();
 176         policyTypes.clear();
 177         services.clear();
 178         a1ClientFactory.reset();
 179     }
 180
 181     @AfterEach
 182     public void verifyNoRicLocks() {
 183         for (Ric ric : this.rics.getRics()) {
 184             ric.getLock().lockBlocking(LockType.EXCLUSIVE);
 185             ric.getLock().unlockBlocking();
 186             assertThat(ric.getLock().getLockCounter()).isEqualTo(0);
 187             assertThat(ric.getState()).isEqualTo(Ric.RicState.AVAILABLE);
 188         }
 189     }
 190
 191     @Test
 192     public void testGetRics() throws Exception {
 193         addRic("ric1");
 194         this.addPolicyType("type1", "ric1");
 195         String url = "/rics?policyType=type1";
 196         String rsp = restClient().get(url).block();
 197         assertThat(rsp).contains("ric1");
 198
 199         // nameless type for ORAN A1 1.1
 200         addRic("ric2");
 201         this.addPolicyType("", "ric2");
 202         url = "/rics?policyType=";
 203         rsp = restClient().get(url).block();
 204         assertThat(rsp).contains("ric2");
 205         assertThat(rsp).doesNotContain("ric1");
 206         assertThat(rsp).contains("AVAILABLE");
 207
 208         // All RICs
 209         rsp = restClient().get("/rics").block();
 210         assertThat(rsp).contains("ric2");
 211         assertThat(rsp).contains("ric1");
 212
 213         // Non existing policy type
 214         url = "/rics?policyType=XXXX";
 215         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 216     }
 217
 218     @Test
 219     public void testSynchronization() throws Exception {
 220         // Two polictypes will be put in the NearRT RICs
 221         PolicyTypes nearRtRicPolicyTypes = new PolicyTypes();
 222         nearRtRicPolicyTypes.put(createPolicyType("typeName"));
 223         nearRtRicPolicyTypes.put(createPolicyType("typeName2"));
 224         this.a1ClientFactory.setPolicyTypes(nearRtRicPolicyTypes);
 225
 226         // One type and one instance added to the agent storage
 227         final String ric1Name = "ric1";
 228         Ric ric1 = addRic(ric1Name);
 229         Policy policy2 = addPolicy("policyId2", "typeName", "service", ric1Name);
 230         Ric ric2 = addRic("ric2");
 231
 232         getA1Client(ric1Name).putPolicy(policy2); // put it in the RIC
 233         policies.remove(policy2); // Remove it from the repo -> should be deleted in the RIC
 234
 235         String policyId = "policyId";
 236         Policy policy = addPolicy(policyId, "typeName", "service", ric1Name); // This should be created in the RIC
 237         supervision.checkAllRics(); // The created policy should be put in the RIC
 238
 239         // Wait until synch is completed
 240         await().untilAsserted(() -> RicState.SYNCHRONIZING.equals(rics.getRic(ric1Name).getState()));
 241         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic(ric1Name).getState()));
 242         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic("ric2").getState()));
 243
 244         Policies ricPolicies = getA1Client(ric1Name).getPolicies();
 245         assertThat(ricPolicies.size()).isEqualTo(1);
 246         Policy ricPolicy = ricPolicies.get(policyId);
 247         assertThat(ricPolicy.json()).isEqualTo(policy.json());
 248
 249         // Both types should be in the agent storage after the synch
 250         assertThat(ric1.getSupportedPolicyTypes().size()).isEqualTo(2);
 251         assertThat(ric2.getSupportedPolicyTypes().size()).isEqualTo(2);
 252     }
 253
 254     @Test
 255     public void testGetRicForManagedElement_thenReturnCorrectRic() throws Exception {
 256         String ricName = "ric1";
 257         String managedElementId = "kista_1";
 258         addRic(ricName, managedElementId);
 259
 260         String url = "/ric?managedElementId=" + managedElementId;
 261         String rsp = restClient().get(url).block();
 262         assertThat(rsp).isEqualTo(ricName);
 263
 264         // test GET RIC for ManagedElement that does not exist
 265         url = "/ric?managedElementId=" + "junk";
 266         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 267     }
 268
 269     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId) {
 270         if (policyTypeName.isEmpty()) {
 271             return "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName;
 272         } else {
 273             return "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName + "&type="
 274                 + policyTypeName;
 275         }
 276     }
 277
 278     @Test
 279     public void testPutPolicy() throws Exception {
 280         String serviceName = "service1";
 281         String ricName = "ric1";
 282         String policyTypeName = "type1";
 283         String policyInstanceId = "instance1";
 284
 285         putService(serviceName);
 286         addPolicyType(policyTypeName, ricName);
 287
 288         String url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 289         final String policyBody = jsonString();
 290         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 291
 292         restClient().put(url, policyBody).block();
 293
 294         Policy policy = policies.getPolicy(policyInstanceId);
 295         assertThat(policy).isNotNull();
 296         assertThat(policy.id()).isEqualTo(policyInstanceId);
 297         assertThat(policy.ownerServiceName()).isEqualTo(serviceName);
 298         assertThat(policy.ric().name()).isEqualTo("ric1");
 299
 300         url = "/policies";
 301         String rsp = restClient().get(url).block();
 302         assertThat(rsp.contains(policyInstanceId)).isTrue();
 303
 304         // Test of error codes
 305         url = putPolicyUrl(serviceName, ricName + "XX", policyTypeName, policyInstanceId);
 306         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 307
 308         url = putPolicyUrl(serviceName, ricName, policyTypeName + "XX", policyInstanceId);
 309         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 310
 311         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 312         this.rics.getRic(ricName).setState(Ric.RicState.SYNCHRONIZING);
 313         testErrorCode(restClient().put(url, policyBody), HttpStatus.LOCKED);
 314         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 315     }
 316
 317     @Test
 318     /**
 319      * Test that HttpStatus and body from failing REST call to A1 is passed on to
 320      * the caller.
 321      *
 322      * @throws ServiceException
 323      */
 324     public void testErrorFromRIC() throws ServiceException {
 325         putService("service1");
 326         addPolicyType("type1", "ric1");
 327
 328         String url = putPolicyUrl("service1", "ric1", "type1", "id1");
 329         MockA1Client a1Client = a1ClientFactory.getOrCreateA1Client("ric1");
 330         HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
 331         String responseBody = "Refused";
 332         byte[] responseBodyBytes = responseBody.getBytes(StandardCharsets.UTF_8);
 333
 334         WebClientResponseException a1Exception = new WebClientResponseException(httpStatus.value(), "statusText", null,
 335             responseBodyBytes, StandardCharsets.UTF_8, null);
 336         doReturn(Mono.error(a1Exception)).when(a1Client).putPolicy(any());
 337
 338         // PUT Policy
 339         testErrorCode(restClient().put(url, "{}"), httpStatus, responseBody);
 340
 341         // DELETE POLICY
 342         this.addPolicy("instance1", "type1", "service1", "ric1");
 343         doReturn(Mono.error(a1Exception)).when(a1Client).deletePolicy(any());
 344         testErrorCode(restClient().delete("/policy?id=instance1"), httpStatus, responseBody);
 345
 346         // GET STATUS
 347         this.addPolicy("instance1", "type1", "service1", "ric1");
 348         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 349         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus, responseBody);
 350
 351         // Check that empty response body is OK
 352         a1Exception = new WebClientResponseException(httpStatus.value(), "", null, null, null, null);
 353         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 354         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus);
 355     }
 356
 357     @Test
 358     public void testPutTypelessPolicy() throws Exception {
 359         putService("service1");
 360         addPolicyType("", "ric1");
 361         String url = putPolicyUrl("service1", "ric1", "", "id1");
 362         restClient().put(url, jsonString()).block();
 363
 364         String rsp = restClient().get("/policies").block();
 365         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 366         assertThat(info).size().isEqualTo(1);
 367         PolicyInfo policyInfo = info.get(0);
 368         assertThat(policyInfo.id.equals("id1")).isTrue();
 369         assertThat(policyInfo.type.equals("")).isTrue();
 370     }
 371
 372     @Test
 373     public void testRefuseToUpdatePolicy() throws Exception {
 374         // Test that only the json can be changed for a already created policy
 375         // In this case service is attempted to be changed
 376         this.addRic("ric1");
 377         this.addRic("ricXXX");
 378         this.addPolicy("instance1", "type1", "service1", "ric1");
 379         this.addPolicy("instance2", "type1", "service1", "ricXXX");
 380
 381         // Try change ric1 -> ricXXX
 382         String urlWrongRic = putPolicyUrl("service1", "ricXXX", "type1", "instance1");
 383         testErrorCode(restClient().put(urlWrongRic, jsonString()), HttpStatus.CONFLICT);
 384     }
 385
 386     @Test
 387     public void testGetPolicy() throws Exception {
 388         String url = "/policy?id=id";
 389         Policy policy = addPolicy("id", "typeName", "service1", "ric1");
 390         {
 391             String rsp = restClient().get(url).block();
 392             assertThat(rsp).isEqualTo(policy.json());
 393         }
 394         {
 395             policies.remove(policy);
 396             testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 397         }
 398     }
 399
 400     @Test
 401     public void testDeletePolicy() throws Exception {
 402         addPolicy("id", "typeName", "service1", "ric1");
 403         assertThat(policies.size()).isEqualTo(1);
 404
 405         String url = "/policy?id=id";
 406         ResponseEntity<String> entity = restClient().deleteForEntity(url).block();
 407
 408         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
 409         assertThat(policies.size()).isEqualTo(0);
 410
 411         // Delete a non existing policy
 412         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 413     }
 414
 415     @Test
 416     public void testGetPolicySchemas() throws Exception {
 417         addPolicyType("type1", "ric1");
 418         addPolicyType("type2", "ric2");
 419
 420         String url = "/policy_schemas";
 421         String rsp = this.restClient().get(url).block();
 422         assertThat(rsp).contains("type1");
 423         assertThat(rsp).contains("[{\"title\":\"type2\"}");
 424
 425         List<String> info = parseSchemas(rsp);
 426         assertThat(info.size()).isEqualTo(2);
 427
 428         url = "/policy_schemas?ric=ric1";
 429         rsp = restClient().get(url).block();
 430         assertThat(rsp).contains("type1");
 431         info = parseSchemas(rsp);
 432         assertThat(info.size()).isEqualTo(1);
 433
 434         // Get schema for non existing RIC
 435         url = "/policy_schemas?ric=ric1XXX";
 436         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 437     }
 438
 439     @Test
 440     public void testGetPolicySchema() throws Exception {
 441         addPolicyType("type1", "ric1");
 442         addPolicyType("type2", "ric2");
 443
 444         String url = "/policy_schema?id=type1";
 445         String rsp = restClient().get(url).block();
 446         logger.info(rsp);
 447         assertThat(rsp).contains("type1");
 448         assertThat(rsp).contains("title");
 449
 450         // Get non existing schema
 451         url = "/policy_schema?id=type1XX";
 452         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 453     }
 454
 455     @Test
 456     public void testGetPolicyTypes() throws Exception {
 457         addPolicyType("type1", "ric1");
 458         addPolicyType("type2", "ric2");
 459
 460         String url = "/policy_types";
 461         String rsp = restClient().get(url).block();
 462         assertThat(rsp).isEqualTo("[\"type2\",\"type1\"]");
 463
 464         url = "/policy_types?ric=ric1";
 465         rsp = restClient().get(url).block();
 466         assertThat(rsp).isEqualTo("[\"type1\"]");
 467
 468         // Get policy types for non existing RIC
 469         url = "/policy_types?ric=ric1XXX";
 470         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 471     }
 472
 473     @Test
 474     public void testGetPolicies() throws Exception {
 475         addPolicy("id1", "type1", "service1");
 476
 477         String url = "/policies";
 478         String rsp = restClient().get(url).block();
 479         logger.info(rsp);
 480         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 481         assertThat(info).size().isEqualTo(1);
 482         PolicyInfo policyInfo = info.get(0);
 483         assert (policyInfo.validate());
 484         assertThat(policyInfo.id).isEqualTo("id1");
 485         assertThat(policyInfo.type).isEqualTo("type1");
 486         assertThat(policyInfo.service).isEqualTo("service1");
 487     }
 488
 489     @Test
 490     public void testGetPoliciesFilter() throws Exception {
 491         addPolicy("id1", "type1", "service1");
 492         addPolicy("id2", "type1", "service2");
 493         addPolicy("id3", "type2", "service1");
 494
 495         String url = "/policies?type=type1";
 496         String rsp = restClient().get(url).block();
 497         logger.info(rsp);
 498         assertThat(rsp).contains("id1");
 499         assertThat(rsp).contains("id2");
 500         assertThat(rsp.contains("id3")).isFalse();
 501
 502         url = "/policies?type=type1&service=service2";
 503         rsp = restClient().get(url).block();
 504         logger.info(rsp);
 505         assertThat(rsp.contains("id1")).isFalse();
 506         assertThat(rsp).contains("id2");
 507         assertThat(rsp.contains("id3")).isFalse();
 508
 509         // Test get policies for non existing type
 510         url = "/policies?type=type1XXX";
 511         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 512
 513         // Test get policies for non existing RIC
 514         url = "/policies?ric=XXX";
 515         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 516     }
 517
 518     @Test
 519     public void testGetPolicyIdsFilter() throws Exception {
 520         addPolicy("id1", "type1", "service1", "ric1");
 521         addPolicy("id2", "type1", "service2", "ric1");
 522         addPolicy("id3", "type2", "service1", "ric1");
 523
 524         String url = "/policy_ids?type=type1";
 525         String rsp = restClient().get(url).block();
 526         logger.info(rsp);
 527         assertThat(rsp).contains("id1");
 528         assertThat(rsp).contains("id2");
 529         assertThat(rsp.contains("id3")).isFalse();
 530
 531         url = "/policy_ids?type=type1&service=service1&ric=ric1";
 532         rsp = restClient().get(url).block();
 533         assertThat(rsp).isEqualTo("[\"id1\"]");
 534
 535         // Test get policy ids for non existing type
 536         url = "/policy_ids?type=type1XXX";
 537         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 538
 539         // Test get policy ids for non existing RIC
 540         url = "/policy_ids?ric=XXX";
 541         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 542     }
 543
 544     @Test
 545     public void testPutAndGetService() throws Exception {
 546         // PUT
 547         putService("name", 0, HttpStatus.CREATED);
 548         putService("name", 0, HttpStatus.OK);
 549
 550         // GET one service
 551         String url = "/services?name=name";
 552         String rsp = restClient().get(url).block();
 553         List<ServiceStatus> info = parseList(rsp, ServiceStatus.class);
 554         assertThat(info.size()).isEqualTo(1);
 555         ServiceStatus status = info.iterator().next();
 556         assertThat(status.keepAliveIntervalSeconds).isEqualTo(0);
 557         assertThat(status.serviceName).isEqualTo("name");
 558
 559         // GET (all)
 560         url = "/services";
 561         rsp = restClient().get(url).block();
 562         assertThat(rsp.contains("name")).isTrue();
 563         logger.info(rsp);
 564
 565         // Keep alive
 566         url = "/services/keepalive?name=name";
 567         ResponseEntity<String> entity = restClient().putForEntity(url).block();
 568         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 569
 570         // DELETE service
 571         assertThat(services.size()).isEqualTo(1);
 572         url = "/services?name=name";
 573         restClient().delete(url).block();
 574         assertThat(services.size()).isEqualTo(0);
 575
 576         // Keep alive, no registerred service
 577         testErrorCode(restClient().put("/services/keepalive?name=name", ""), HttpStatus.NOT_FOUND);
 578
 579         // PUT servive with bad payload
 580         testErrorCode(restClient().put("/service", "crap"), HttpStatus.BAD_REQUEST);
 581         testErrorCode(restClient().put("/service", "{}"), HttpStatus.BAD_REQUEST);
 582         testErrorCode(restClient().put("/service", createServiceJson("name", -123)), HttpStatus.BAD_REQUEST);
 583         testErrorCode(restClient().put("/service", createServiceJson("name", 0, "missing.portandprotocol.com")),
 584             HttpStatus.BAD_REQUEST);
 585
 586         // GET non existing servive
 587         testErrorCode(restClient().get("/services?name=XXX"), HttpStatus.NOT_FOUND);
 588     }
 589
 590     @Test
 591     public void testServiceSupervision() throws Exception {
 592         putService("service1", 1, HttpStatus.CREATED);
 593         addPolicyType("type1", "ric1");
 594
 595         String url = putPolicyUrl("service1", "ric1", "type1", "instance1");
 596         final String policyBody = jsonString();
 597         restClient().put(url, policyBody).block();
 598
 599         assertThat(policies.size()).isEqualTo(1);
 600         assertThat(services.size()).isEqualTo(1);
 601
 602         // Timeout after ~1 second
 603         await().untilAsserted(() -> assertThat(policies.size()).isEqualTo(0));
 604         assertThat(services.size()).isEqualTo(0);
 605     }
 606
 607     @Test
 608     public void testGetPolicyStatus() throws Exception {
 609         addPolicy("id", "typeName", "service1", "ric1");
 610         assertThat(policies.size()).isEqualTo(1);
 611
 612         String url = "/policy_status?id=id";
 613         String rsp = restClient().get(url).block();
 614         assertThat(rsp.equals("OK")).isTrue();
 615
 616         // GET non existing policy status
 617         url = "/policy_status?id=XXX";
 618         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 619     }
 620
 621     private Policy addPolicy(String id, String typeName, String service, String ric) throws ServiceException {
 622         addRic(ric);
 623         Policy p = ImmutablePolicy.builder().id(id) //
 624             .json(jsonString()) //
 625             .ownerServiceName(service) //
 626             .ric(rics.getRic(ric)) //
 627             .type(addPolicyType(typeName, ric)) //
 628             .lastModified("lastModified").build();
 629         policies.put(p);
 630         return p;
 631     }
 632
 633     private Policy addPolicy(String id, String typeName, String service) throws ServiceException {
 634         return addPolicy(id, typeName, service, "ric");
 635     }
 636
 637     private String createServiceJson(String name, long keepAliveIntervalSeconds) {
 638         return createServiceJson(name, keepAliveIntervalSeconds, "https://examples.javacodegeeks.com/core-java/");
 639     }
 640
 641     private String createServiceJson(String name, long keepAliveIntervalSeconds, String url) {
 642         ServiceRegistrationInfo service = new ServiceRegistrationInfo(name, keepAliveIntervalSeconds, url);
 643
 644         String json = gson.toJson(service);
 645         return json;
 646     }
 647
 648     private void putService(String name) {
 649         putService(name, 0, null);
 650     }
 651
 652     private void putService(String name, long keepAliveIntervalSeconds, @Nullable HttpStatus expectedStatus) {
 653         String url = "/service";
 654         String body = createServiceJson(name, keepAliveIntervalSeconds);
 655         ResponseEntity<String> resp = restClient().putForEntity(url, body).block();
 656         if (expectedStatus != null) {
 657             assertEquals(expectedStatus, resp.getStatusCode(), "");
 658         }
 659     }
 660
 661     private String baseUrl() {
 662         return "http://localhost:" + port;
 663     }
 664
 665     private String jsonString() {
 666         return "{\n  \"servingCellNrcgi\": \"1\"\n }";
 667     }
 668
 669     @Test
 670     public void testConcurrency() throws Exception {
 671         final Instant startTime = Instant.now();
 672         List<Thread> threads = new ArrayList<>();
 673         a1ClientFactory.setResponseDelay(Duration.ofMillis(1));
 674         addRic("ric");
 675         addPolicyType("type1", "ric");
 676         addPolicyType("type2", "ric");
 677
 678         for (int i = 0; i < 100; ++i) {
 679             Thread t =
 680                 new Thread(new ConcurrencyTestRunnable(baseUrl(), supervision, a1ClientFactory, rics, policyTypes),
 681                     "TestThread_" + i);
 682             t.start();
 683             threads.add(t);
 684         }
 685         for (Thread t : threads) {
 686             t.join();
 687         }
 688         assertThat(policies.size()).isEqualTo(0);
 689         logger.info("Concurrency test took " + Duration.between(startTime, Instant.now()));
 690     }
 691
 692     private AsyncRestClient restClient() {
 693         return new AsyncRestClient(baseUrl());
 694     }
 695
 696     private void testErrorCode(Mono<?> request, HttpStatus expStatus) {
 697         testErrorCode(request, expStatus, "");
 698     }
 699
 700     private void testErrorCode(Mono<?> request, HttpStatus expStatus, String responseContains) {
 701         StepVerifier.create(request) //
 702             .expectSubscription() //
 703             .expectErrorMatches(t -> checkWebClientError(t, expStatus, responseContains)) //
 704             .verify();
 705     }
 706
 707     private boolean checkWebClientError(Throwable t, HttpStatus expStatus, String responseContains) {
 708         assertTrue(t instanceof WebClientResponseException);
 709         WebClientResponseException e = (WebClientResponseException) t;
 710         assertThat(e.getStatusCode()).isEqualTo(expStatus);
 711         assertThat(e.getResponseBodyAsString()).contains(responseContains);
 712         return true;
 713     }
 714
 715     private MockA1Client getA1Client(String ricName) throws ServiceException {
 716         return a1ClientFactory.getOrCreateA1Client(ricName);
 717     }
 718
 719     private PolicyType createPolicyType(String policyTypeName) {
 720         return ImmutablePolicyType.builder() //
 721             .name(policyTypeName) //
 722             .schema("{\"title\":\"" + policyTypeName + "\"}") //
 723             .build();
 724     }
 725
 726     private PolicyType addPolicyType(String policyTypeName, String ricName) {
 727         PolicyType type = createPolicyType(policyTypeName);
 728         policyTypes.put(type);
 729         addRic(ricName).addSupportedPolicyType(type);
 730         return type;
 731     }
 732
 733     private Ric addRic(String ricName) {
 734         return addRic(ricName, null);
 735     }
 736
 737     private Ric addRic(String ricName, String managedElement) {
 738         if (rics.get(ricName) != null) {
 739             return rics.get(ricName);
 740         }
 741         List<String> mes = new ArrayList<>();
 742         if (managedElement != null) {
 743             mes.add(managedElement);
 744         }
 745         RicConfig conf = ImmutableRicConfig.builder() //
 746             .name(ricName) //
 747             .baseUrl(ricName) //
 748             .managedElementIds(mes) //
 749             .controllerName("") //
 750             .build();
 751         Ric ric = new Ric(conf);
 752         ric.setState(Ric.RicState.AVAILABLE);
 753         this.rics.put(ric);
 754         return ric;
 755     }
 756
 757     private static <T> List<T> parseList(String jsonString, Class<T> clazz) {
 758         List<T> result = new ArrayList<>();
 759         JsonArray jsonArr = JsonParser.parseString(jsonString).getAsJsonArray();
 760         for (JsonElement jsonElement : jsonArr) {
 761             T o = gson.fromJson(jsonElement.toString(), clazz);
 762             result.add(o);
 763         }
 764         return result;
 765     }
 766
 767     private static List<String> parseSchemas(String jsonString) {
 768         JsonArray arrayOfSchema = JsonParser.parseString(jsonString).getAsJsonArray();
 769         List<String> result = new ArrayList<>();
 770         for (JsonElement schemaObject : arrayOfSchema) {
 771             result.add(schemaObject.toString());
 772         }
 773         return result;
 774     }
 775 }