policy-agent/src/test/java/org/oransc/policyagent/configuration/ApplicationConfigTest.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 package org.oransc.policyagent.configuration;
  21
  22 import static org.assertj.core.api.Assertions.assertThat;
  23 import static org.junit.Assert.assertTrue;
  24 import static org.mockito.ArgumentMatchers.any;
  25 import static org.mockito.Mockito.doReturn;
  26 import static org.mockito.Mockito.mock;
  27 import static org.mockito.Mockito.spy;
  28 import static org.mockito.Mockito.times;
  29 import static org.mockito.Mockito.verify;
  30
  31 import ch.qos.logback.classic.spi.ILoggingEvent;
  32 import ch.qos.logback.core.read.ListAppender;
  33
  34 import com.google.common.base.Charsets;
  35 import com.google.common.io.Resources;
  36 import com.google.gson.JsonIOException;
  37 import com.google.gson.JsonObject;
  38 import com.google.gson.JsonParser;
  39 import com.google.gson.JsonSyntaxException;
  40
  41 import java.io.ByteArrayInputStream;
  42 import java.io.IOException;
  43 import java.io.InputStream;
  44 import java.io.InputStreamReader;
  45 import java.net.URL;
  46 import java.nio.charset.StandardCharsets;
  47 import java.util.Arrays;
  48 import java.util.Properties;
  49 import java.util.Vector;
  50
  51 import org.junit.Test;
  52 import org.junit.jupiter.api.Assertions;
  53 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsClient;
  54 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.EnvProperties;
  55 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.ImmutableEnvProperties;
  56 import org.oransc.policyagent.exceptions.ServiceException;
  57 import org.oransc.policyagent.utils.LoggingUtils;
  58
  59 import reactor.core.publisher.Flux;
  60 import reactor.core.publisher.Mono;
  61 import reactor.test.StepVerifier;
  62
  63 public class ApplicationConfigTest {
  64
  65     private ApplicationConfig appConfigUnderTest;
  66     CbsClient cbsClient = mock(CbsClient.class);
  67
  68     public static final ImmutableRicConfig CORRECT_RIC_CONIFG = ImmutableRicConfig.builder() //
  69         .name("ric1") //
  70         .baseUrl("http://localhost:8080/") //
  71         .managedElementIds(new Vector<String>(Arrays.asList("kista_1", "kista_2"))) //
  72         .build();
  73
  74     private static EnvProperties properties() {
  75         return ImmutableEnvProperties.builder() //
  76             .consulHost("host") //
  77             .consulPort(123) //
  78             .cbsName("cbsName") //
  79             .appName("appName") //
  80             .build();
  81     }
  82
  83     @Test
  84     public void whenTheConfigurationFits() throws IOException, ServiceException {
  85
  86         appConfigUnderTest = spy(ApplicationConfig.class);
  87         appConfigUnderTest.systemEnvironment = new Properties();
  88         // When
  89         doReturn(getCorrectJson()).when(appConfigUnderTest).createInputStream(any());
  90         appConfigUnderTest.initialize();
  91
  92         // Then
  93         verify(appConfigUnderTest, times(1)).loadConfigurationFromFile(any());
  94
  95         Vector<RicConfig> ricConfigs = appConfigUnderTest.getRicConfigs();
  96         RicConfig ricConfig = ricConfigs.firstElement();
  97         assertThat(ricConfigs).isNotNull();
  98         assertThat(ricConfig).isEqualTo(CORRECT_RIC_CONIFG);
  99     }
 100
 101     @Test
 102     public void whenFileIsExistsButJsonIsIncorrect() throws IOException, ServiceException {
 103
 104         appConfigUnderTest = spy(ApplicationConfig.class);
 105         appConfigUnderTest.systemEnvironment = new Properties();
 106
 107         // When
 108         doReturn(getIncorrectJson()).when(appConfigUnderTest).createInputStream(any());
 109         appConfigUnderTest.loadConfigurationFromFile(any());
 110
 111         // Then
 112         verify(appConfigUnderTest, times(1)).loadConfigurationFromFile(any());
 113         Assertions.assertNull(appConfigUnderTest.getRicConfigs());
 114     }
 115
 116     @Test
 117     public void whenPeriodicConfigRefreshNoEnvironmentVariables() {
 118
 119         appConfigUnderTest = spy(ApplicationConfig.class);
 120         appConfigUnderTest.systemEnvironment = new Properties();
 121
 122         final ListAppender<ILoggingEvent> logAppender = LoggingUtils.getLogListAppender(ApplicationConfig.class);
 123         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 124
 125         StepVerifier.create(task).expectSubscription().verifyComplete();
 126
 127         assertTrue(logAppender.list.toString().contains("$CONSUL_HOST environment has not been defined"));
 128     }
 129
 130     @Test
 131     public void whenPeriodicConfigRefreshNoConsul() {
 132         appConfigUnderTest = spy(ApplicationConfig.class);
 133         appConfigUnderTest.systemEnvironment = new Properties();
 134
 135         EnvProperties props = properties();
 136         doReturn(Mono.just(props)).when(appConfigUnderTest).getEnvironment(any());
 137
 138         doReturn(Mono.just(cbsClient)).when(appConfigUnderTest).createCbsClient(props);
 139         Flux<JsonObject> err = Flux.error(new IOException());
 140         doReturn(err).when(cbsClient).updates(any(), any(), any());
 141
 142         final ListAppender<ILoggingEvent> logAppender = LoggingUtils.getLogListAppender(ApplicationConfig.class);
 143         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 144
 145         StepVerifier //
 146             .create(task) //
 147             .expectSubscription() //
 148             .verifyComplete();
 149
 150         assertTrue(
 151             logAppender.list.toString().contains("Could not refresh application configuration java.io.IOException"));
 152     }
 153
 154     @Test
 155     public void whenPeriodicConfigRefreshSuccess() throws JsonIOException, JsonSyntaxException, IOException {
 156         appConfigUnderTest = spy(ApplicationConfig.class);
 157         appConfigUnderTest.systemEnvironment = new Properties();
 158
 159         EnvProperties props = properties();
 160         doReturn(Mono.just(props)).when(appConfigUnderTest).getEnvironment(any());
 161         doReturn(Mono.just(cbsClient)).when(appConfigUnderTest).createCbsClient(props);
 162
 163         Flux<JsonObject> json = Flux.just(getJsonRootObject());
 164         doReturn(json).when(cbsClient).updates(any(), any(), any());
 165
 166         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 167
 168         StepVerifier //
 169             .create(task) //
 170             .expectSubscription() //
 171             .expectNext(appConfigUnderTest) //
 172             .verifyComplete();
 173
 174         Assertions.assertNotNull(appConfigUnderTest.getRicConfigs());
 175     }
 176
 177     private JsonObject getJsonRootObject() throws JsonIOException, JsonSyntaxException, IOException {
 178         JsonObject rootObject = (new JsonParser()).parse(new InputStreamReader(getCorrectJson())).getAsJsonObject();
 179         return rootObject;
 180     }
 181
 182     private static InputStream getCorrectJson() throws IOException {
 183         URL url = ApplicationConfigParser.class.getClassLoader().getResource("test_application_configuration.json");
 184         String string = Resources.toString(url, Charsets.UTF_8);
 185         return new ByteArrayInputStream((string.getBytes(StandardCharsets.UTF_8)));
 186     }
 187
 188     private static InputStream getIncorrectJson() {
 189         String string = "{" + //
 190             "    \"config\": {" + //
 191             "        \"ric\": {"; //
 192         return new ByteArrayInputStream((string.getBytes(StandardCharsets.UTF_8)));
 193     }
 194
 195 }