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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.services.pmmapper.config;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.StatusCodes;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.onap.dcaegen2.services.pmmapper.exceptions.ReconfigurationException;
import org.onap.dcaegen2.services.pmmapper.model.EnvironmentConfig;
import org.onap.dcaegen2.services.pmmapper.model.MapperConfig;
import org.onap.dcaegen2.services.pmmapper.utils.RequestSender;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
import static org.mockito.Mockito.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(PowerMockRunner.class)
@PrepareForTest({DynamicConfiguration.class, EnvironmentConfig.class})
public class DynamicConfigurationTest {
private static Path VALID_CONFIG_PATH = Paths.get("src/test/resources/valid_mapper_config.json");
private static ArrayList<Configurable> configurables;
private DynamicConfiguration objUnderTest;
private static String config;
private MapperConfig originalMapperConfig;
@Mock
private RequestSender sender;
@BeforeClass()
public static void setupBeforeClass() throws Exception {
config = new String(Files.readAllBytes(VALID_CONFIG_PATH));
}
@Before
public void setup() throws Exception {
configurables = new ArrayList<>();
PowerMockito.mockStatic(EnvironmentConfig.class);
PowerMockito.when(EnvironmentConfig.getCBSHostName()).thenReturn("");
PowerMockito.when(EnvironmentConfig.getCBSPort()).thenReturn(1);
PowerMockito.when(EnvironmentConfig.getServiceName()).thenReturn("");
when(sender.send(any())).thenReturn(config);
ConfigHandler configHandler = new ConfigHandler(sender);
originalMapperConfig = configHandler.getMapperConfig();
objUnderTest = new DynamicConfiguration(configurables, originalMapperConfig);
}
@Test
public void testNoChangeResponse() throws Exception {
ConfigHandler configHandler = new ConfigHandler(sender);
originalMapperConfig = configHandler.getMapperConfig();
objUnderTest.setConfigHandler(configHandler);
HttpServerExchange httpServerExchange = mock(HttpServerExchange.class, RETURNS_DEEP_STUBS);
objUnderTest.handleRequest(httpServerExchange);
assertEquals(originalMapperConfig, objUnderTest.getOriginalConfig());
verify(httpServerExchange, times(1)).setStatusCode(StatusCodes.OK);
}
@Test
public void testApplyOriginalUponFailure() throws Exception {
ConfigHandler configHandler = new ConfigHandler(sender);
Configurable configurable = mock(Configurable.class);
configurables.add(configurable);
JsonObject modifiedConfig = new JsonParser().parse(config).getAsJsonObject();
modifiedConfig.addProperty("dmaap_dr_delete_endpoint","http://modified-delete-endpoint/1");
when(sender.send(any())).thenReturn(modifiedConfig.toString());
MapperConfig modifiedMapperConfig = configHandler.getMapperConfig();
objUnderTest.setConfigHandler(configHandler);
doAnswer(new Answer() {
boolean failFirstReconfigure = true;
@Override
public Object answer(InvocationOnMock invocationOnMock) throws Throwable {
if (failFirstReconfigure) {
failFirstReconfigure = false;
throw new ReconfigurationException("");
}
return null;
}
}).when(configurable).reconfigure(any());
HttpServerExchange httpServerExchange = mock(HttpServerExchange.class, RETURNS_DEEP_STUBS);
objUnderTest.handleRequest(httpServerExchange);
assertEquals(originalMapperConfig, objUnderTest.getOriginalConfig());
verify(httpServerExchange, times(1)).setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR);
verify(configurable, times(1)).reconfigure(modifiedMapperConfig);
verify(configurable, times(1)).reconfigure(originalMapperConfig);
}
@Test
public void testSuccessfulReconfiguration() throws Exception {
ConfigHandler configHandler = new ConfigHandler(sender);
Configurable configurable = mock(Configurable.class);
configurables.add(configurable);
JsonObject modifiedConfig = new JsonParser().parse(config).getAsJsonObject();
modifiedConfig.addProperty("dmaap_dr_delete_endpoint","http://modified-delete-endpoint/1");
when(sender.send(any())).thenReturn(modifiedConfig.toString());
MapperConfig modifiedMapperConfig = configHandler.getMapperConfig();
objUnderTest.setConfigHandler(configHandler);
HttpServerExchange httpServerExchange = mock(HttpServerExchange.class, RETURNS_DEEP_STUBS);
objUnderTest.handleRequest(httpServerExchange);
assertEquals(modifiedMapperConfig, objUnderTest.getOriginalConfig());
verify(httpServerExchange, times(1)).setStatusCode(StatusCodes.OK);
verify(configurable, times(1)).reconfigure(modifiedMapperConfig);
}
@Test
public void testMapperConfigReconfiguration() throws Exception {
ConfigHandler configHandler = new ConfigHandler(sender);
JsonObject modifiedConfigJson = new JsonParser().parse(config).getAsJsonObject();
modifiedConfigJson.addProperty("dmaap_dr_delete_endpoint","http://modified-delete-endpoint/1");
String newConfig = modifiedConfigJson.toString();
when(sender.send(any())).thenReturn(config,newConfig);
MapperConfig originalConfig = configHandler.getMapperConfig();
MapperConfig modifiedConfig = configHandler.getMapperConfig();
originalConfig.reconfigure(modifiedConfig);
assertEquals(originalConfig, modifiedConfig);
}
}
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