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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019-2020 Nordix Foundation.
* Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
* ================================================================================
* 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.policy.apex.services.onappf.comm;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.onap.policy.apex.service.engine.main.ApexPolicyStatisticsManager;
import org.onap.policy.apex.services.onappf.ApexStarterActivator;
import org.onap.policy.apex.services.onappf.ApexStarterCommandLineArguments;
import org.onap.policy.apex.services.onappf.ApexStarterConstants;
import org.onap.policy.apex.services.onappf.exception.ApexStarterException;
import org.onap.policy.apex.services.onappf.handler.ApexEngineHandler;
import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterGroup;
import org.onap.policy.apex.services.onappf.parameters.ApexStarterParameterHandler;
import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
import org.onap.policy.common.utils.coder.CoderException;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.pdp.concepts.PdpStateChange;
import org.onap.policy.models.pdp.concepts.PdpStatus;
import org.onap.policy.models.pdp.concepts.PdpUpdate;
import org.onap.policy.models.pdp.enums.PdpState;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
/**
* Class to perform unit test of {@link PdpStateChangeListener}.
*
* @author Ajith Sreekumar (ajith.sreekumar@est.tech)
*/
public class TestPdpStateChangeListener {
private PdpUpdateListener pdpUpdateMessageListener;
private PdpStateChangeListener pdpStateChangeListener;
private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
private static final String TOPIC = "my-topic";
private ApexStarterActivator activator;
private ApexEngineHandler apexEngineHandler;
private PrintStream stdout = System.out;
/**
* Method for setup before each test.
*
* @throws ApexStarterException if some error occurs while starting up the apex starter
* @throws FileNotFoundException if the file is missing
* @throws IOException if IO exception occurs
*/
@Before
public void setUp() throws ApexStarterException, FileNotFoundException, IOException {
pdpUpdateMessageListener = new PdpUpdateListener();
pdpStateChangeListener = new PdpStateChangeListener();
Registry.newRegistry();
final String[] apexStarterConfigParameters = {"-c", "src/test/resources/ApexStarterConfigParametersNoop.json"};
final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
ApexStarterParameterGroup parameterGroup;
// The arguments return a string if there is a message to print and we should
// exit
final String argumentMessage = arguments.parse(apexStarterConfigParameters);
if (argumentMessage != null) {
return;
}
// Validate that the arguments are sane
arguments.validate();
// Read the parameters
parameterGroup = new ApexStarterParameterHandler().getParameters(arguments);
activator = new ApexStarterActivator(parameterGroup);
Registry.register(ApexStarterConstants.REG_APEX_STARTER_ACTIVATOR, activator);
Registry.register(ApexPolicyStatisticsManager.REG_APEX_PDP_POLICY_COUNTER, new ApexPolicyStatisticsManager());
activator.initialize();
}
/**
* Method for cleanup after each test.
*
* @throws Exception if an error occurs
*/
@After
public void teardown() throws Exception {
System.setOut(stdout);
apexEngineHandler =
Registry.getOrDefault(ApexStarterConstants.REG_APEX_ENGINE_HANDLER, ApexEngineHandler.class, null);
if (null != apexEngineHandler && apexEngineHandler.isApexEngineRunning()) {
apexEngineHandler.shutdown();
}
// clear the apex starter activator
if (activator != null && activator.isAlive()) {
activator.terminate();
}
}
@Test
public void testPdpStateChangeMessageListener_passivetopassive() {
final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
PdpStateChange pdpStateChangeMsg =
TestListenerUtils.createPdpStateChangeMsg(PdpState.PASSIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
assertEquals(pdpStatus.getState(), pdpStateChangeMsg.getState());
}
@Test
public void testPdpStateChangeMessageListener_activetoactive() {
final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
pdpStatus.setState(PdpState.ACTIVE);
PdpStateChange pdpStateChangeMsg =
TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
assertEquals(pdpStatus.getState(), pdpStateChangeMsg.getState());
}
@Test
public void testPdpStateChangeMessageListener() throws InterruptedException, CoderException {
OutputStream outContent = new ByteArrayOutputStream();
System.setOut(new PrintStream(outContent));
final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null,
TestListenerUtils.createPdpUpdateMsg(pdpStatus, new ArrayList<ToscaPolicy>()));
PdpStateChange pdpStateChangeMsg =
TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
assertTrue(outContent.toString().contains("State changed to active. No policies found."));
final ToscaPolicy toscaPolicy =
TestListenerUtils.createToscaPolicy("apex_policy_name", "1.0", "src/test/resources/dummyProperties.json");
final List<ToscaPolicy> toscaPolicies = new ArrayList<ToscaPolicy>();
toscaPolicies.add(toscaPolicy);
final PdpUpdate pdpUpdateMsg = TestListenerUtils.createPdpUpdateMsg(pdpStatus, toscaPolicies);
pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null, pdpUpdateMsg);
assertTrue(outContent.toString().contains("Apex engine started and policies are running."));
assertEquals(PdpState.ACTIVE, pdpStatus.getState());
final ApexPolicyStatisticsManager policyCounterManager = ApexPolicyStatisticsManager.getInstanceFromRegistry();
assertNotNull(policyCounterManager);
assertEquals(policyCounterManager.getPolicyDeployCount(),
policyCounterManager.getPolicyDeploySuccessCount() + policyCounterManager.getPolicyDeployFailCount());
apexEngineHandler =
Registry.getOrDefault(ApexStarterConstants.REG_APEX_ENGINE_HANDLER, ApexEngineHandler.class, null);
assertNotNull(apexEngineHandler);
assertTrue(apexEngineHandler.getEngineStats().size() > 0);
}
@Test
public void testPdpStateChangeMessageListener_activetopassive() throws InterruptedException, CoderException {
final PdpStatus pdpStatus = Registry.get(ApexStarterConstants.REG_PDP_STATUS_OBJECT);
final ToscaPolicy toscaPolicy =
TestListenerUtils.createToscaPolicy("apex_policy_name", "1.0", "src/test/resources/dummyProperties.json");
final List<ToscaPolicy> toscaPolicies = new ArrayList<ToscaPolicy>();
toscaPolicies.add(toscaPolicy);
final PdpUpdate pdpUpdateMsg = TestListenerUtils.createPdpUpdateMsg(pdpStatus, toscaPolicies);
pdpUpdateMessageListener.onTopicEvent(INFRA, TOPIC, null, pdpUpdateMsg);
PdpStateChange pdpStateChangeMsg =
TestListenerUtils.createPdpStateChangeMsg(PdpState.ACTIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
pdpStateChangeMsg =
TestListenerUtils.createPdpStateChangeMsg(PdpState.PASSIVE, "pdpGroup", "pdpSubgroup", pdpStatus.getName());
OutputStream outContent = new ByteArrayOutputStream();
System.setOut(new PrintStream(outContent));
pdpStateChangeListener.onTopicEvent(INFRA, TOPIC, null, pdpStateChangeMsg);
final String outString = outContent.toString();
assertTrue(outString.contains("Apex pdp state changed from Active to Passive."));
assertEquals(PdpState.PASSIVE, pdpStatus.getState());
}
}
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