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
  21 package org.oransc.policyagent.configuration;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.junit.jupiter.api.Assertions.assertTrue;
  25 import static org.mockito.ArgumentMatchers.any;
  26 import static org.mockito.Mockito.doReturn;
  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.jupiter.api.Assertions;
  52 import org.junit.jupiter.api.Test;
  53 import org.junit.jupiter.api.extension.ExtendWith;
  54 import org.junit.runner.RunWith;
  55 import org.mockito.Mock;
  56 import org.mockito.junit.MockitoJUnitRunner;
  57 import org.mockito.junit.jupiter.MockitoExtension;
  58 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsClient;
  59 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.EnvProperties;
  60 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.ImmutableEnvProperties;
  61 import org.oransc.policyagent.exceptions.ServiceException;
  62 import org.oransc.policyagent.utils.LoggingUtils;
  63
  64 import reactor.core.publisher.Flux;
  65 import reactor.core.publisher.Mono;
  66 import reactor.test.StepVerifier;
  67
  68 @ExtendWith(MockitoExtension.class)
  69 @RunWith(MockitoJUnitRunner.class)
  70 public class ApplicationConfigTest {
  71
  72     private ApplicationConfig appConfigUnderTest;
  73
  74     @Mock
  75     CbsClient cbsClient;
  76
  77     public static final ImmutableRicConfig CORRECT_RIC_CONIFG = ImmutableRicConfig.builder() //
  78         .name("ric1") //
  79         .baseUrl("http://localhost:8080/") //
  80         .managedElementIds(new Vector<String>(Arrays.asList("kista_1", "kista_2"))) //
  81         .build();
  82
  83     private static EnvProperties properties() {
  84         return ImmutableEnvProperties.builder() //
  85             .consulHost("host") //
  86             .consulPort(123) //
  87             .cbsName("cbsName") //
  88             .appName("appName") //
  89             .build();
  90     }
  91
  92     @Test
  93     public void whenTheConfigurationFits() throws IOException, ServiceException {
  94
  95         appConfigUnderTest = spy(ApplicationConfig.class);
  96         appConfigUnderTest.systemEnvironment = new Properties();
  97         // When
  98         doReturn(getCorrectJson()).when(appConfigUnderTest).createInputStream(any());
  99         appConfigUnderTest.initialize();
 100
 101         // Then
 102         verify(appConfigUnderTest, times(1)).loadConfigurationFromFile(any());
 103
 104         Vector<RicConfig> ricConfigs = appConfigUnderTest.getRicConfigs();
 105         RicConfig ricConfig = ricConfigs.firstElement();
 106         assertThat(ricConfigs).isNotNull();
 107         assertThat(ricConfig).isEqualTo(CORRECT_RIC_CONIFG);
 108     }
 109
 110     @Test
 111     public void whenFileIsExistsButJsonIsIncorrect() throws IOException, ServiceException {
 112
 113         appConfigUnderTest = spy(ApplicationConfig.class);
 114         appConfigUnderTest.systemEnvironment = new Properties();
 115
 116         // When
 117         doReturn(getIncorrectJson()).when(appConfigUnderTest).createInputStream(any());
 118         appConfigUnderTest.loadConfigurationFromFile(any());
 119
 120         // Then
 121         verify(appConfigUnderTest, times(1)).loadConfigurationFromFile(any());
 122         Assertions.assertNull(appConfigUnderTest.getRicConfigs());
 123     }
 124
 125     @Test
 126     public void whenPeriodicConfigRefreshNoEnvironmentVariables() {
 127
 128         appConfigUnderTest = spy(ApplicationConfig.class);
 129         appConfigUnderTest.systemEnvironment = new Properties();
 130
 131         final ListAppender<ILoggingEvent> logAppender = LoggingUtils.getLogListAppender(ApplicationConfig.class);
 132         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 133
 134         StepVerifier.create(task).expectSubscription().verifyComplete();
 135
 136         assertTrue(logAppender.list.toString().contains("$CONSUL_HOST environment has not been defined"));
 137     }
 138
 139     @Test
 140     public void whenPeriodicConfigRefreshNoConsul() {
 141         appConfigUnderTest = spy(ApplicationConfig.class);
 142         appConfigUnderTest.systemEnvironment = new Properties();
 143
 144         EnvProperties props = properties();
 145         doReturn(Mono.just(props)).when(appConfigUnderTest).getEnvironment(any());
 146
 147         doReturn(Mono.just(cbsClient)).when(appConfigUnderTest).createCbsClient(props);
 148         Flux<JsonObject> err = Flux.error(new IOException());
 149         doReturn(err).when(cbsClient).updates(any(), any(), any());
 150
 151         final ListAppender<ILoggingEvent> logAppender = LoggingUtils.getLogListAppender(ApplicationConfig.class);
 152         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 153
 154         StepVerifier //
 155             .create(task) //
 156             .expectSubscription() //
 157             .verifyComplete();
 158
 159         assertTrue(
 160             logAppender.list.toString().contains("Could not refresh application configuration java.io.IOException"));
 161     }
 162
 163     @Test
 164     public void whenPeriodicConfigRefreshSuccess() throws JsonIOException, JsonSyntaxException, IOException {
 165         appConfigUnderTest = spy(ApplicationConfig.class);
 166         appConfigUnderTest.systemEnvironment = new Properties();
 167
 168         EnvProperties props = properties();
 169         doReturn(Mono.just(props)).when(appConfigUnderTest).getEnvironment(any());
 170         doReturn(Mono.just(cbsClient)).when(appConfigUnderTest).createCbsClient(props);
 171
 172         Flux<JsonObject> json = Flux.just(getJsonRootObject());
 173         doReturn(json).when(cbsClient).updates(any(), any(), any());
 174
 175         Flux<ApplicationConfig> task = appConfigUnderTest.createRefreshTask();
 176
 177         StepVerifier //
 178             .create(task) //
 179             .expectSubscription() //
 180             .expectNext(appConfigUnderTest) //
 181             .verifyComplete();
 182
 183         Assertions.assertNotNull(appConfigUnderTest.getRicConfigs());
 184     }
 185
 186     private JsonObject getJsonRootObject() throws JsonIOException, JsonSyntaxException, IOException {
 187         JsonObject rootObject = (new JsonParser()).parse(new InputStreamReader(getCorrectJson())).getAsJsonObject();
 188         return rootObject;
 189     }
 190
 191     private static InputStream getCorrectJson() throws IOException {
 192         URL url = ApplicationConfigParser.class.getClassLoader().getResource("test_application_configuration.json");
 193         String string = Resources.toString(url, Charsets.UTF_8);
 194         return new ByteArrayInputStream((string.getBytes(StandardCharsets.UTF_8)));
 195     }
 196
 197     private static InputStream getIncorrectJson() {
 198         String string = "{" + //
 199             "    \"config\": {" + //
 200             "        \"ric\": {"; //
 201         return new ByteArrayInputStream((string.getBytes(StandardCharsets.UTF_8)));
 202     }
 203
 204 }