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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
package com.cloud.agent;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.any;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.eq;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.io.IOException;
import java.net.InetSocketAddress;
import javax.naming.ConfigurationException;
import org.apache.logging.log4j.Logger;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.junit.MockitoJUnitRunner;
import org.springframework.test.util.ReflectionTestUtils;
import com.cloud.resource.ServerResource;
import com.cloud.utils.backoff.impl.ConstantTimeBackoff;
import com.cloud.utils.nio.Link;
import com.cloud.utils.nio.NioConnection;
@RunWith(MockitoJUnitRunner.class)
public class AgentTest {
Agent agent;
private AgentShell shell;
private ServerResource serverResource;
private Logger logger;
@Before
public void setUp() throws ConfigurationException {
shell = mock(AgentShell.class);
serverResource = mock(ServerResource.class);
doReturn(true).when(serverResource).configure(any(), any());
doReturn(1).when(shell).getWorkers();
doReturn(1).when(shell).getPingRetries();
agent = new Agent(shell, 1, serverResource);
logger = mock(Logger.class);
ReflectionTestUtils.setField(agent, "logger", logger);
}
@Test
public void testGetLinkLogNullLinkReturnsEmptyString() {
Link link = null;
String result = agent.getLinkLog(link);
assertEquals("", result);
}
@Test
public void testGetLinkLogLinkWithTraceEnabledReturnsLinkLogWithHashCode() {
Link link = mock(Link.class);
InetSocketAddress socketAddress = new InetSocketAddress("192.168.1.100", 1111);
when(link.getSocketAddress()).thenReturn(socketAddress);
when(logger.isTraceEnabled()).thenReturn(true);
String result = agent.getLinkLog(link);
System.out.println(result);
assertTrue(result.startsWith(System.identityHashCode(link) + "-"));
assertTrue(result.contains("192.168.1.100"));
}
@Test
public void testGetAgentNameWhenServerResourceIsNull() {
ReflectionTestUtils.setField(agent, "serverResource", null);
assertEquals("Agent", agent.getAgentName());
}
@Test
public void testGetAgentNameWhenAppendAgentNameIsTrue() {
when(serverResource.isAppendAgentNameToLogs()).thenReturn(true);
when(serverResource.getName()).thenReturn("TestAgent");
String agentName = agent.getAgentName();
assertEquals("TestAgent", agentName);
}
@Test
public void testGetAgentNameWhenAppendAgentNameIsFalse() {
when(serverResource.isAppendAgentNameToLogs()).thenReturn(false);
String agentName = agent.getAgentName();
assertEquals("Agent", agentName);
}
@Test
public void testAgentInitialization() {
Runtime.getRuntime().removeShutdownHook(agent.shutdownThread);
when(shell.getPingRetries()).thenReturn(3);
when(shell.getWorkers()).thenReturn(5);
agent.setupShutdownHookAndInitExecutors();
assertNotNull(agent.selfTaskExecutor);
assertNotNull(agent.outRequestHandler);
assertNotNull(agent.requestHandler);
}
@Test
public void testAgentShutdownHookAdded() {
Runtime.getRuntime().removeShutdownHook(agent.shutdownThread);
agent.setupShutdownHookAndInitExecutors();
verify(logger).trace("Adding shutdown hook");
}
@Test
public void testGetResourceGuidValidGuidAndResourceName() {
when(shell.getGuid()).thenReturn("12345");
String result = agent.getResourceGuid();
assertTrue(result.startsWith("12345-" + ServerResource.class.getSimpleName()));
}
@Test
public void testGetZoneReturnsValidZone() {
when(shell.getZone()).thenReturn("ZoneA");
String result = agent.getZone();
assertEquals("ZoneA", result);
}
@Test
public void testGetPodReturnsValidPod() {
when(shell.getPod()).thenReturn("PodA");
String result = agent.getPod();
assertEquals("PodA", result);
}
@Test
public void testSetLinkAssignsLink() {
Link mockLink = mock(Link.class);
agent.setLink(mockLink);
assertEquals(mockLink, agent.link);
}
@Test
public void testGetResourceReturnsServerResource() {
ServerResource mockResource = mock(ServerResource.class);
ReflectionTestUtils.setField(agent, "serverResource", mockResource);
ServerResource result = agent.getResource();
assertSame(mockResource, result);
}
@Test
public void testGetResourceName() {
String result = agent.getResourceName();
assertTrue(result.startsWith(ServerResource.class.getSimpleName()));
}
@Test
public void testUpdateLastPingResponseTimeUpdatesCurrentTime() {
long beforeUpdate = System.currentTimeMillis();
agent.updateLastPingResponseTime();
long updatedTime = agent.lastPingResponseTime.get();
assertTrue(updatedTime >= beforeUpdate);
assertTrue(updatedTime <= System.currentTimeMillis());
}
@Test
public void testGetNextSequenceIncrementsSequence() {
long initialSequence = agent.getNextSequence();
long nextSequence = agent.getNextSequence();
assertEquals(initialSequence + 1, nextSequence);
long thirdSequence = agent.getNextSequence();
assertEquals(nextSequence + 1, thirdSequence);
}
@Test
public void testRegisterControlListenerAddsListener() {
IAgentControlListener listener = mock(IAgentControlListener.class);
agent.registerControlListener(listener);
assertTrue(agent.controlListeners.contains(listener));
}
@Test
public void testUnregisterControlListenerRemovesListener() {
IAgentControlListener listener = mock(IAgentControlListener.class);
agent.registerControlListener(listener);
assertTrue(agent.controlListeners.contains(listener));
agent.unregisterControlListener(listener);
assertFalse(agent.controlListeners.contains(listener));
}
@Test
public void testCloseAndTerminateLinkLinkIsNullDoesNothing() {
agent.closeAndTerminateLink(null);
}
@Test
public void testCloseAndTerminateLinkValidLinkCallsCloseAndTerminate() {
Link mockLink = mock(Link.class);
agent.closeAndTerminateLink(mockLink);
verify(mockLink).close();
verify(mockLink).terminated();
}
@Test
public void testStopAndCleanupConnectionConnectionIsNullDoesNothing() {
agent.connection = null;
agent.stopAndCleanupConnection(false);
}
@Test
public void testStopAndCleanupConnectionValidConnectionNoWaitStopsAndCleansUp() throws IOException {
NioConnection mockConnection = mock(NioConnection.class);
agent.connection = mockConnection;
agent.stopAndCleanupConnection(false);
verify(mockConnection).stop();
verify(mockConnection).cleanUp();
}
@Test
public void testStopAndCleanupConnectionCleanupThrowsIOExceptionLogsWarning() throws IOException {
NioConnection mockConnection = mock(NioConnection.class);
agent.connection = mockConnection;
doThrow(new IOException("Cleanup failed")).when(mockConnection).cleanUp();
agent.stopAndCleanupConnection(false);
verify(mockConnection).stop();
verify(logger).warn(eq("Fail to clean up old connection. {}"), any(IOException.class));
}
@Test
public void testStopAndCleanupConnectionValidConnectionWaitForStopWaitsForStartupToStop() throws IOException {
NioConnection mockConnection = mock(NioConnection.class);
ConstantTimeBackoff mockBackoff = mock(ConstantTimeBackoff.class);
mockBackoff.setTimeToWait(0);
agent.connection = mockConnection;
when(shell.getBackoffAlgorithm()).thenReturn(mockBackoff);
when(mockConnection.isStartup()).thenReturn(true, true, false);
agent.stopAndCleanupConnection(true);
verify(mockConnection).stop();
verify(mockConnection).cleanUp();
verify(mockBackoff, times(3)).waitBeforeRetry();
}
}
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