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