policy-agent/src/test/java/org/oransc/policyagent/dmaap/DmaapMessageHandlerTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2019 Nordix Foundation.
   4  * ================================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  * SPDX-License-Identifier: Apache-2.0
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.oransc.policyagent.dmaap;
  22
  23 import static ch.qos.logback.classic.Level.WARN;
  24 import static org.assertj.core.api.Assertions.assertThat;
  25 import static org.junit.Assert.assertFalse;
  26 import static org.junit.Assert.assertNotNull;
  27 import static org.junit.jupiter.api.Assertions.assertTrue;
  28 import static org.mockito.ArgumentMatchers.anyString;
  29 import static org.mockito.Mockito.doReturn;
  30 import static org.mockito.Mockito.mock;
  31 import static org.mockito.Mockito.spy;
  32 import static org.mockito.Mockito.verify;
  33 import static org.mockito.Mockito.verifyNoMoreInteractions;
  34
  35 import ch.qos.logback.classic.spi.ILoggingEvent;
  36 import ch.qos.logback.core.read.ListAppender;
  37
  38 import com.google.gson.Gson;
  39 import com.google.gson.GsonBuilder;
  40 import com.google.gson.JsonObject;
  41
  42 import java.io.IOException;
  43 import java.util.Optional;
  44
  45 import org.junit.jupiter.api.BeforeEach;
  46 import org.junit.jupiter.api.Test;
  47 import org.mockito.ArgumentCaptor;
  48 import org.oransc.policyagent.clients.AsyncRestClient;
  49 import org.oransc.policyagent.dmaap.DmaapRequestMessage.Operation;
  50 import org.oransc.policyagent.repository.ImmutablePolicyType;
  51 import org.oransc.policyagent.repository.PolicyType;
  52 import org.oransc.policyagent.utils.LoggingUtils;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55 import org.springframework.http.HttpStatus;
  56 import org.springframework.http.ResponseEntity;
  57
  58 import reactor.core.publisher.Mono;
  59 import reactor.test.StepVerifier;
  60
  61 class DmaapMessageHandlerTest {
  62     private static final Logger logger = LoggerFactory.getLogger(DmaapMessageHandlerTest.class);
  63     private static final String URL = "url";
  64
  65     private final AsyncRestClient dmaapClient = mock(AsyncRestClient.class);
  66     private final AsyncRestClient agentClient = mock(AsyncRestClient.class);
  67     private DmaapMessageHandler testedObject;
  68     private static Gson gson = new GsonBuilder() //
  69         .create(); //
  70
  71     @BeforeEach
  72     private void setUp() throws Exception {
  73         testedObject = spy(new DmaapMessageHandler(dmaapClient, agentClient));
  74     }
  75
  76     static JsonObject payloadAsJson() {
  77         return gson.fromJson(payloadAsString(), JsonObject.class);
  78     }
  79
  80     static String payloadAsString() {
  81         PolicyType pt = ImmutablePolicyType.builder().name("name").schema("schema").build();
  82         return gson.toJson(pt);
  83     }
  84
  85     DmaapRequestMessage dmaapRequestMessage(Operation operation) {
  86         Optional<JsonObject> payload =
  87             ((operation == Operation.PUT || operation == Operation.POST) ? Optional.of(payloadAsJson())
  88                 : Optional.empty());
  89         return ImmutableDmaapRequestMessage.builder() //
  90             .apiVersion("apiVersion") //
  91             .correlationId("correlationId") //
  92             .operation(operation) //
  93             .originatorId("originatorId") //
  94             .payload(payload) //
  95             .requestId("requestId") //
  96             .target("target") //
  97             .timestamp("timestamp") //
  98             .url(URL) //
  99             .build();
 100     }
 101
 102     private String dmaapInputMessage(Operation operation) {
 103         return gson.toJson(dmaapRequestMessage(operation));
 104     }
 105
 106     private Mono<ResponseEntity<String>> okResponse() {
 107         ResponseEntity<String> entity = new ResponseEntity<>("OK", HttpStatus.OK);
 108         return Mono.just(entity);
 109     }
 110
 111     private Mono<ResponseEntity<String>> notOkResponse() {
 112         ResponseEntity<String> entity = new ResponseEntity<>("NOK", HttpStatus.BAD_GATEWAY);
 113         return Mono.just(entity);
 114     }
 115
 116     @Test
 117     void testMessageParsing() {
 118         String message = dmaapInputMessage(Operation.DELETE);
 119         logger.info(message);
 120         DmaapRequestMessage parsedMessage = gson.fromJson(message, ImmutableDmaapRequestMessage.class);
 121         assertNotNull(parsedMessage);
 122         assertFalse(parsedMessage.payload().isPresent());
 123
 124         message = dmaapInputMessage(Operation.PUT);
 125         logger.info(message);
 126         parsedMessage = gson.fromJson(message, ImmutableDmaapRequestMessage.class);
 127         assertNotNull(parsedMessage);
 128         assertTrue(parsedMessage.payload().isPresent());
 129     }
 130
 131     @Test
 132     void unparseableMessage_thenWarning() {
 133         final ListAppender<ILoggingEvent> logAppender =
 134             LoggingUtils.getLogListAppender(DmaapMessageHandler.class, WARN);
 135
 136         String msg = "bad message";
 137         testedObject.handleDmaapMsg(msg);
 138
 139         assertThat(logAppender.list.get(0).getFormattedMessage()).startsWith(
 140             "handleDmaapMsg failure org.oransc.policyagent.exceptions.ServiceException: Received unparsable "
 141                 + "message from DMAAP: \"" + msg + "\", reason: ");
 142     }
 143
 144     @Test
 145     void successfulDelete() throws IOException {
 146         doReturn(okResponse()).when(agentClient).deleteForEntity(anyString());
 147         doReturn(Mono.just("OK")).when(dmaapClient).post(anyString(), anyString());
 148
 149         String message = dmaapInputMessage(Operation.DELETE);
 150
 151         StepVerifier //
 152             .create(testedObject.createTask(message)) //
 153             .expectSubscription() //
 154             .expectNext("OK") //
 155             .verifyComplete(); //
 156
 157         verify(agentClient).deleteForEntity(URL);
 158         verifyNoMoreInteractions(agentClient);
 159
 160         verify(dmaapClient).post(anyString(), anyString());
 161
 162         verifyNoMoreInteractions(dmaapClient);
 163     }
 164
 165     @Test
 166     void successfulGet() throws IOException {
 167         doReturn(okResponse()).when(agentClient).getForEntity(anyString());
 168         doReturn(Mono.just("OK")).when(dmaapClient).post(anyString(), anyString());
 169
 170         StepVerifier //
 171             .create(testedObject.createTask(dmaapInputMessage(Operation.GET))) //
 172             .expectSubscription() //
 173             .expectNext("OK") //
 174             .verifyComplete(); //
 175
 176         verify(agentClient).getForEntity(URL);
 177         verifyNoMoreInteractions(agentClient);
 178
 179         verify(dmaapClient).post(anyString(), anyString());
 180         verifyNoMoreInteractions(dmaapClient);
 181     }
 182
 183     @Test
 184     void successfulPut() throws IOException {
 185         doReturn(okResponse()).when(agentClient).putForEntity(anyString(), anyString());
 186         doReturn(Mono.just("OK")).when(dmaapClient).post(anyString(), anyString());
 187
 188         StepVerifier //
 189             .create(testedObject.createTask(dmaapInputMessage(Operation.PUT))) //
 190             .expectSubscription() //
 191             .expectNext("OK") //
 192             .verifyComplete(); //
 193
 194         verify(agentClient).putForEntity(URL, payloadAsString());
 195         verifyNoMoreInteractions(agentClient);
 196
 197         verify(dmaapClient).post(anyString(), anyString());
 198         verifyNoMoreInteractions(dmaapClient);
 199     }
 200
 201     @Test
 202     void successfulPost() throws IOException {
 203         doReturn(okResponse()).when(agentClient).postForEntity(anyString(), anyString());
 204         doReturn(Mono.just("OK")).when(dmaapClient).post(anyString(), anyString());
 205
 206         StepVerifier //
 207             .create(testedObject.createTask(dmaapInputMessage(Operation.POST))) //
 208             .expectSubscription() //
 209             .expectNext("OK") //
 210             .verifyComplete(); //
 211
 212         verify(agentClient).postForEntity(URL, payloadAsString());
 213         verifyNoMoreInteractions(agentClient);
 214
 215         verify(dmaapClient).post(anyString(), anyString());
 216         verifyNoMoreInteractions(dmaapClient);
 217     }
 218
 219     @Test
 220     void exceptionWhenCallingPolicyAgent_thenNotFoundResponse() throws IOException {
 221
 222         doReturn(notOkResponse()).when(agentClient).putForEntity(anyString(), anyString());
 223         doReturn(Mono.just("OK")).when(dmaapClient).post(anyString(), anyString());
 224
 225         testedObject.createTask(dmaapInputMessage(Operation.PUT)).block();
 226
 227         verify(agentClient).putForEntity(anyString(), anyString());
 228         verifyNoMoreInteractions(agentClient);
 229
 230         ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);
 231         verify(dmaapClient).post(anyString(), captor.capture());
 232         String actualMessage = captor.getValue();
 233         assertThat(actualMessage.contains(HttpStatus.BAD_GATEWAY.toString()))
 234             .as("Message \"%s\" sent to DMaaP contains %s", actualMessage, HttpStatus.BAD_GATEWAY) //
 235             .isTrue();
 236
 237         verifyNoMoreInteractions(dmaapClient);
 238     }
 239
 240     @Test
 241     void unsupportedOperationInMessage_thenNotFoundResponseWithNotImplementedOperation() throws Exception {
 242         String message = dmaapInputMessage(Operation.PUT).toString();
 243         String badOperation = "BAD";
 244         message = message.replace(Operation.PUT.toString(), badOperation);
 245
 246         testedObject.handleDmaapMsg(message);
 247
 248         ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);
 249         verify(dmaapClient).post(anyString(), captor.capture());
 250         String actualMessage = captor.getValue();
 251         assertThat(actualMessage.contains("Not implemented operation")).isTrue();
 252         assertThat(actualMessage.contains("BAD_REQUEST")).isTrue();
 253     }
 254
 255     @Test
 256     void putWithoutPayload_thenNotFoundResponseWithWarning() throws Exception {
 257         String message = dmaapInputMessage(Operation.PUT).toString();
 258         message = message.replace(",\"payload\":{\"name\":\"name\",\"schema\":\"schema\"}", "");
 259
 260         final ListAppender<ILoggingEvent> logAppender =
 261             LoggingUtils.getLogListAppender(DmaapMessageHandler.class, WARN);
 262
 263         testedObject.handleDmaapMsg(message);
 264
 265         assertThat(logAppender.list.get(0).getFormattedMessage())
 266             .startsWith("Expected payload in message from DMAAP: ");
 267     }
 268 }