Squashed commit of the following:
commit 7452e6d2acdbf0290c41b50ac4b7064411782a0e
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Tue Jun 25 14:36:29 2013 -0700
Complete implementation of unit test for ZookeeperRegistry.
commit 9d35d5f09570872acf16977614f18b0be087580f
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Mon Jun 24 17:45:11 2013 -0700
Debug
commit 07d43392e4324af93986e6095536727f3497e327
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Fri Jun 21 16:32:35 2013 -0700
Implementation of mock CuratorFramework is done.
commit 9230449c4ed4326721e29abe8dc01b3115a74041
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Fri Jun 21 13:52:25 2013 -0700
Add some mock object to ZookeeperRegistry
commit 912a03932e8b1c60f19a9daadf08fb719e5ccf92
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Thu Jun 20 11:43:47 2013 -0700
Create test class for ZookeeperRegistry
commit 68e4ae5e9b0f265c3f21ce757b36381a9368826a
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Wed Jun 19 17:46:03 2013 -0700
Implement StandaloneRegistryTest
commit d81bf9f11159df9abf545bc471970a78ccdf1193
Author: Naoki Shiota <n-shiota@onlab.us>
Date: Tue Jun 18 15:47:37 2013 -0700
Create test class for StandAloneRegistry
diff --git a/src/test/java/net/onrc/onos/registry/controller/ZookeeperRegistryTest.java b/src/test/java/net/onrc/onos/registry/controller/ZookeeperRegistryTest.java
new file mode 100644
index 0000000..f557663
--- /dev/null
+++ b/src/test/java/net/onrc/onos/registry/controller/ZookeeperRegistryTest.java
@@ -0,0 +1,602 @@
+package net.onrc.onos.registry.controller;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+import net.floodlightcontroller.core.module.FloodlightModuleContext;
+import net.floodlightcontroller.test.FloodlightTestCase;
+import net.onrc.onos.registry.controller.StandaloneRegistryTest.LoggingCallback;
+import net.onrc.onos.registry.controller.ZookeeperRegistry.SwitchLeaderListener;
+
+import org.easymock.EasyMock;
+import org.easymock.IAnswer;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.openflow.util.HexString;
+import org.powermock.api.easymock.PowerMock;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import com.netflix.curator.RetryPolicy;
+import com.netflix.curator.framework.CuratorFramework;
+import com.netflix.curator.framework.CuratorFrameworkFactory;
+import com.netflix.curator.framework.listen.ListenerContainer;
+import com.netflix.curator.framework.recipes.atomic.AtomicValue;
+import com.netflix.curator.framework.recipes.atomic.DistributedAtomicLong;
+import com.netflix.curator.framework.recipes.cache.ChildData;
+import com.netflix.curator.framework.recipes.cache.PathChildrenCache;
+import com.netflix.curator.framework.recipes.cache.PathChildrenCacheEvent;
+import com.netflix.curator.framework.recipes.cache.PathChildrenCacheListener;
+import com.netflix.curator.framework.recipes.cache.PathChildrenCache.StartMode;
+import com.netflix.curator.framework.recipes.leader.LeaderLatch;
+import com.netflix.curator.x.discovery.ServiceCache;
+import com.netflix.curator.x.discovery.ServiceCacheBuilder;
+import com.netflix.curator.x.discovery.ServiceDiscovery;
+import com.netflix.curator.x.discovery.ServiceDiscoveryBuilder;
+import com.netflix.curator.x.discovery.ServiceInstance;
+
+/**
+ * Unit test for ZookeeperRegistry.
+ * NOTE: FloodlightTestCase conflicts with PowerMock. If FloodLight-related methods need to be tested,
+ * implement another test class to test them.
+ * @author Naoki Shiota
+ *
+ */
+@RunWith(PowerMockRunner.class)
+@PrepareForTest({ZookeeperRegistry.class, CuratorFramework.class, CuratorFrameworkFactory.class,
+ ServiceDiscoveryBuilder.class, ServiceDiscovery.class, ServiceCache.class, PathChildrenCache.class,
+ ZookeeperRegistry.SwitchPathCacheListener.class})
+public class ZookeeperRegistryTest extends FloodlightTestCase {
+ private final static Long ID_BLOCK_SIZE = 0x100000000L;
+
+ protected ZookeeperRegistry registry;
+ protected CuratorFramework client;
+
+ protected PathChildrenCacheListener pathChildrenCacheListener;
+ protected final String CONTROLLER_ID = "controller2013";
+
+ /**
+ * Initialize ZookeeperRegistry Object and inject initial value with init() method.
+ * This setup code also tests init() method itself.
+ */
+ @Before
+ public void setUp() throws Exception {
+ super.setUp();
+
+ pathChildrenCacheListener = null;
+
+ // Mock of CuratorFramework
+ client = createCuratorFrameworkMock();
+
+ // Mock of CuratorFrameworkFactory
+ PowerMock.mockStatic(CuratorFrameworkFactory.class);
+ EasyMock.expect(CuratorFrameworkFactory.newClient((String)EasyMock.anyObject(),
+ EasyMock.anyInt(), EasyMock.anyInt(), (RetryPolicy)EasyMock.anyObject())).andReturn(client);
+ PowerMock.replay(CuratorFrameworkFactory.class);
+
+ FloodlightModuleContext fmc = new FloodlightModuleContext();
+ registry = new ZookeeperRegistry();
+ fmc.addService(ZookeeperRegistry.class, registry);
+
+ registry.init(fmc);
+
+ PowerMock.verify(client, CuratorFrameworkFactory.class);
+ }
+
+ /**
+ * Clean up member variables (empty for now).
+ */
+ @After
+ public void tearDown() throws Exception {
+ super.tearDown();
+ }
+
+ /**
+ * Test if registerController() method can go through without exception.
+ * (Exceptions are usually out of test target, but registerController() throws an exception in case of invalid registration.)
+ */
+ @Test
+ public void testRegisterController() {
+ String controllerIdToRegister = "controller2013";
+
+ try {
+ registry.registerController(controllerIdToRegister);
+ } catch (RegistryException e) {
+ e.printStackTrace();
+ fail(e.getMessage());
+ }
+ }
+
+ /**
+ * Test if getControllerId() correctly returns registered ID.
+ * @throws Exception
+ */
+ @Test
+ public void testGetControllerId() throws Exception {
+ String controllerIdToRegister = "controller1";
+
+ // try before controller is registered
+ String controllerId = registry.getControllerId();
+ assertNull(controllerId);
+
+ // register
+ registry.registerController(controllerIdToRegister);
+
+ // call getControllerId and verify
+ controllerId = registry.getControllerId();
+ assertNotNull(controllerId);
+ assertEquals(controllerIdToRegister, controllerId);
+ }
+
+ /**
+ * Test if getAllControllers() returns all controllers.
+ * Controllers are injected while setup. See createCuratorFrameworkMock() to what controllers
+ * are injected using ServiceCache Mock.
+ * @throws Exception
+ */
+ @Test
+ public void testGetAllControllers() throws Exception {
+ String controllerIdRegistered = "controller1";
+ String controllerIdNotRegistered = "controller2013";
+
+ // Test registered controller
+ try {
+ Collection<String> ctrls = registry.getAllControllers();
+ assertTrue(ctrls.contains(controllerIdRegistered));
+ assertFalse(ctrls.contains(controllerIdNotRegistered));
+ } catch (RegistryException e) {
+ e.printStackTrace();
+ fail(e.getMessage());
+ }
+ }
+
+ /**
+ * Test if requestControl() correctly take control of specific switch.
+ * Because requestControl() doesn't return values, inject mock LeaderLatch object and verify latch is correctly set up.
+ * @throws Exception
+ */
+ @Test
+ public void testRequestControl() throws Exception {
+ // Mock of LeaderLatch
+ LeaderLatch latch = EasyMock.createMock(LeaderLatch.class);
+ latch.addListener(EasyMock.anyObject(SwitchLeaderListener.class));
+ EasyMock.expectLastCall().once();
+ latch.start();
+ EasyMock.expectLastCall().once();
+ EasyMock.replay(latch);
+
+ PowerMock.expectNew(LeaderLatch.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyObject(String.class))
+ .andReturn(latch);
+ PowerMock.replay(LeaderLatch.class);
+
+ String controllerId = "controller2013";
+ registry.registerController(controllerId);
+
+ LoggingCallback callback = new LoggingCallback(1);
+ long dpidToRequest = 2000L;
+
+ try {
+ registry.requestControl(dpidToRequest, callback);
+ } catch (RegistryException e) {
+ e.printStackTrace();
+ fail(e.getMessage());
+ }
+
+ EasyMock.verify(latch);
+ }
+
+ /**
+ * Test if releaseControl() correctly release control of specific switch.
+ * Because releaseControl() doesn't return values, inject mock LeaderLatch object and verify latch is correctly set up.
+ * @throws Exception
+ */
+ @Test
+ public void testReleaseControl() throws Exception {
+ // Mock of LeaderLatch
+ LeaderLatch latch = EasyMock.createMock(LeaderLatch.class);
+ latch.addListener(EasyMock.anyObject(SwitchLeaderListener.class));
+ EasyMock.expectLastCall().once();
+ latch.start();
+ EasyMock.expectLastCall().once();
+ latch.removeAllListeners();
+ EasyMock.expectLastCall().once();
+ latch.close();
+ EasyMock.expectLastCall().once();
+ EasyMock.replay(latch);
+
+ PowerMock.expectNew(LeaderLatch.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyObject(String.class))
+ .andReturn(latch);
+ PowerMock.replay(LeaderLatch.class);
+
+ String controllerId = "controller2013";
+ registry.registerController(controllerId);
+
+ long dpidToRequest = 1000L;
+ LoggingCallback callback = new LoggingCallback(1);
+
+ // to request and wait to take control
+ registry.requestControl(dpidToRequest, callback);
+ registry.releaseControl(dpidToRequest);
+
+ // verify
+ EasyMock.verify(latch);
+ }
+
+ /**
+ * Test if hasControl() returns correct status whether controller has control of specific switch.
+ * @throws Exception
+ */
+ @Test
+ public void testHasControl() throws Exception {
+ // Mock of LeaderLatch
+ LeaderLatch latch = EasyMock.createMock(LeaderLatch.class);
+ latch.addListener(EasyMock.anyObject(SwitchLeaderListener.class));
+ EasyMock.expectLastCall().once();
+ latch.start();
+ EasyMock.expectLastCall().once();
+ EasyMock.expect(latch.hasLeadership()).andReturn(true).anyTimes();
+ latch.removeAllListeners();
+ EasyMock.expectLastCall().once();
+ latch.close();
+ EasyMock.expectLastCall().once();
+ EasyMock.replay(latch);
+
+ PowerMock.expectNew(LeaderLatch.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyObject(String.class))
+ .andReturn(latch);
+ PowerMock.replay(LeaderLatch.class);
+
+ String controllerId = "controller2013";
+ registry.registerController(controllerId);
+
+ long dpidToRequest = 2000L;
+ LoggingCallback callback = new LoggingCallback(2);
+
+ // Test before request control
+ assertFalse(registry.hasControl(dpidToRequest));
+
+ registry.requestControl(dpidToRequest, callback);
+
+ // Test after request control
+ assertTrue(registry.hasControl(dpidToRequest));
+
+ registry.releaseControl(dpidToRequest);
+
+ // Test after release control
+ assertFalse(registry.hasControl(dpidToRequest));
+
+ EasyMock.verify(latch);
+ }
+
+ /**
+ * Test if getControllerForSwitch() correctly returns controller ID of specific switch.
+ * Relation between controllers and switches are defined by setPathChildrenCache() function.
+ * @throws Throwable
+ */
+ @Test
+ public void testGetControllerForSwitch() throws Throwable {
+ long dpidRegistered = 1000L;
+ long dpidNotRegistered = 2000L;
+
+ setPathChildrenCache();
+
+ String controllerForSw = registry.getControllerForSwitch(dpidRegistered);
+ assertEquals("controller1",controllerForSw);
+
+ controllerForSw = registry.getControllerForSwitch(dpidNotRegistered);
+ assertEquals(null, controllerForSw);
+ }
+
+ /**
+ * Test if getSwitchesControlledByController() returns correct list of switches controlled by
+ * a controller.
+ * @throws Exception
+ */
+ // TODO: Test after implementation of getSwitch() is done.
+ @Ignore @Test
+ public void testGetSwitchesControlledByController() throws Exception {
+ String controllerIdRegistered = "controller1";
+ String dpidRegistered = HexString.toHexString(1000L);
+ String controllerIdNotRegistered = CONTROLLER_ID;
+
+ Collection<Long> switches = registry.getSwitchesControlledByController(controllerIdRegistered);
+ assertNotNull(switches);
+ assertTrue(switches.contains(dpidRegistered));
+
+ switches = registry.getSwitchesControlledByController(controllerIdNotRegistered);
+ assertNotNull(switches);
+ assertEquals(0, switches.size());
+ }
+
+ /**
+ * Test if getAllSwitches() returns correct list of all switches.
+ * Switches are injected in setPathChildrenCache() function.
+ * @throws Exception
+ */
+ @Test
+ public void testGetAllSwitches() throws Exception {
+ String [] dpids = {
+ HexString.toHexString(1000L),
+ HexString.toHexString(1001L),
+ HexString.toHexString(1002L),
+ };
+
+ setPathChildrenCache();
+
+ Map<String, List<ControllerRegistryEntry>> switches = registry.getAllSwitches();
+ assertNotNull(switches);
+ assertEquals(dpids.length, switches.size());
+ for(String dpid : dpids) {
+ assertTrue(switches.keySet().contains(dpid));
+ }
+ }
+
+ /**
+ * Test if allocateUniqueIdBlock() can assign IdBlock without duplication.
+ */
+ @Test
+ public void testAllocateUniqueIdBlock() {
+ // Number of blocks to be verified that any of them has unique block
+ final int NUM_BLOCKS = 100;
+ ArrayList<IdBlock> blocks = new ArrayList<IdBlock>(NUM_BLOCKS);
+
+ for(int i = 0; i < NUM_BLOCKS; ++i) {
+ IdBlock block = registry.allocateUniqueIdBlock();
+ assertNotNull(block);
+ blocks.add(block);
+ }
+
+ for(int i = 0; i < NUM_BLOCKS; ++i) {
+ IdBlock block1 = blocks.get(i);
+ for(int j = i + 1; j < NUM_BLOCKS; ++j) {
+ IdBlock block2 = blocks.get(j);
+ IdBlock lower,higher;
+
+ if(block1.getStart() < block2.getStart()) {
+ lower = block1;
+ higher = block2;
+ } else {
+ lower = block2;
+ higher = block1;
+ }
+
+ assertTrue(lower.getSize() > 0L);
+ assertTrue(higher.getSize() > 0L);
+ assertTrue(lower.getEnd() <= higher.getStart());
+ }
+ }
+ }
+
+ /**
+ * Create mock CuratorFramework object with initial value below.
+ * [Ctrl ID] : [DPID]
+ * controller1 : 1000
+ * controller2 : 1001
+ * controller2 : 1002
+ * controller2013 : nothing
+ * @return Created mock object
+ * @throws Exception
+ */
+ @SuppressWarnings("serial")
+ private CuratorFramework createCuratorFrameworkMock() throws Exception {
+ // Mock of AtomicValue
+ @SuppressWarnings("unchecked")
+ AtomicValue<Long> atomicValue = EasyMock.createMock(AtomicValue.class);
+ EasyMock.expect(atomicValue.succeeded()).andReturn(true).anyTimes();
+ EasyMock.expect(atomicValue.preValue()).andAnswer(new IAnswer<Long>() {
+ private long value = 0;
+ @Override
+ public Long answer() throws Throwable {
+ value += ID_BLOCK_SIZE;
+ return value;
+ }
+ }).anyTimes();
+ EasyMock.expect(atomicValue.postValue()).andAnswer(new IAnswer<Long>() {
+ private long value = ID_BLOCK_SIZE;
+ @Override
+ public Long answer() throws Throwable {
+ value += ID_BLOCK_SIZE;
+ return value;
+ }
+ }).anyTimes();
+ EasyMock.replay(atomicValue);
+
+ // Mock of DistributedAtomicLong
+ DistributedAtomicLong daLong = EasyMock.createMock(DistributedAtomicLong.class);
+ EasyMock.expect(daLong.add(EasyMock.anyLong())).andReturn(atomicValue).anyTimes();
+ EasyMock.replay(daLong);
+ PowerMock.expectNew(DistributedAtomicLong.class,
+ new Class<?> [] {CuratorFramework.class, String.class, RetryPolicy.class},
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyObject(RetryPolicy.class)).
+ andReturn(daLong).anyTimes();
+ PowerMock.replay(DistributedAtomicLong.class);
+
+ // Mock of ListenerContainer
+ @SuppressWarnings("unchecked")
+ ListenerContainer<PathChildrenCacheListener> listenerContainer = EasyMock.createMock(ListenerContainer.class);
+ listenerContainer.addListener(EasyMock.anyObject(PathChildrenCacheListener.class));
+ EasyMock.expectLastCall().andAnswer(new IAnswer<Object>() {
+ @Override
+ public Object answer() throws Throwable {
+ pathChildrenCacheListener = (PathChildrenCacheListener)EasyMock.getCurrentArguments()[0];
+ return null;
+ }
+ }).once();
+ EasyMock.replay(listenerContainer);
+
+ // Mock of PathChildrenCache
+ PathChildrenCache pathChildrenCacheMain = createPathChildrenCacheMock(CONTROLLER_ID, new String[] {"/switches"}, listenerContainer);
+ PathChildrenCache pathChildrenCache1 = createPathChildrenCacheMock("controller1", new String[] {HexString.toHexString(1000L)}, listenerContainer);
+ PathChildrenCache pathChildrenCache2 = createPathChildrenCacheMock("controller2", new String[] {
+ HexString.toHexString(1001L), HexString.toHexString(1002L) },listenerContainer);
+
+ // Mock of PathChildrenCache constructor
+ PowerMock.expectNew(PathChildrenCache.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyBoolean()).
+ andReturn(pathChildrenCacheMain).once();
+ PowerMock.expectNew(PathChildrenCache.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyBoolean()).
+ andReturn(pathChildrenCache1).once();
+ PowerMock.expectNew(PathChildrenCache.class,
+ EasyMock.anyObject(CuratorFramework.class), EasyMock.anyObject(String.class), EasyMock.anyBoolean()).
+ andReturn(pathChildrenCache2).anyTimes();
+ PowerMock.replay(PathChildrenCache.class);
+
+ // Mock of ServiceCache
+ @SuppressWarnings("unchecked")
+ ServiceCache<ControllerService> serviceCache = EasyMock.createMock(ServiceCache.class);
+ serviceCache.start();
+ EasyMock.expectLastCall().once();
+ EasyMock.expect(serviceCache.getInstances()).andReturn(new ArrayList<ServiceInstance<ControllerService> > () {{
+ add(createServiceInstanceMock("controller1"));
+ add(createServiceInstanceMock("controller2"));
+ }}).anyTimes();
+ EasyMock.replay(serviceCache);
+
+ // Mock of ServiceCacheBuilder
+ @SuppressWarnings("unchecked")
+ ServiceCacheBuilder<ControllerService> serviceCacheBuilder = EasyMock.createMock(ServiceCacheBuilder.class);
+ EasyMock.expect(serviceCacheBuilder.name(EasyMock.anyObject(String.class))).andReturn(serviceCacheBuilder).once();
+ EasyMock.expect(serviceCacheBuilder.build()).andReturn(serviceCache).once();
+ EasyMock.replay(serviceCacheBuilder);
+
+ // Mock of ServiceDiscovery
+ @SuppressWarnings("unchecked")
+ ServiceDiscovery<ControllerService> serviceDiscovery = EasyMock.createMock(ServiceDiscovery.class);
+ serviceDiscovery.start();
+ EasyMock.expectLastCall().once();
+ EasyMock.expect(serviceDiscovery.serviceCacheBuilder()).andReturn(serviceCacheBuilder).once();
+ serviceDiscovery.registerService(EasyMock.anyObject(ServiceInstance.class));
+ EasyMock.expectLastCall().once();
+ EasyMock.replay(serviceDiscovery);
+
+ // Mock of CuratorFramework
+ CuratorFramework client = EasyMock.createMock(CuratorFramework.class);
+ client.start();
+ EasyMock.expectLastCall().once();
+ EasyMock.expect(client.usingNamespace(EasyMock.anyObject(String.class))).andReturn(client);
+ EasyMock.replay(client);
+
+ // Mock of ServiceDiscoveryBuilder
+ @SuppressWarnings("unchecked")
+ ServiceDiscoveryBuilder<ControllerService> builder = EasyMock.createMock(ServiceDiscoveryBuilder.class);
+ EasyMock.expect(builder.client(client)).andReturn(builder).once();
+ EasyMock.expect(builder.basePath(EasyMock.anyObject(String.class))).andReturn(builder);
+ EasyMock.expect(builder.build()).andReturn(serviceDiscovery);
+ EasyMock.replay(builder);
+
+ PowerMock.mockStatic(ServiceDiscoveryBuilder.class);
+ EasyMock.expect(ServiceDiscoveryBuilder.builder(ControllerService.class)).andReturn(builder).once();
+ PowerMock.replay(ServiceDiscoveryBuilder.class);
+
+ return client;
+ }
+
+ /**
+ * Create mock ServiceInstance object using given controller ID.
+ * @param controllerId Controller ID to represent instance's payload (ControllerSeervice).
+ * @return
+ */
+ private ServiceInstance<ControllerService> createServiceInstanceMock(String controllerId) {
+ ControllerService controllerService = EasyMock.createMock(ControllerService.class);
+ EasyMock.expect(controllerService.getControllerId()).andReturn(controllerId).anyTimes();
+ EasyMock.replay(controllerService);
+
+ @SuppressWarnings("unchecked")
+ ServiceInstance<ControllerService> serviceInstance = EasyMock.createMock(ServiceInstance.class);
+ EasyMock.expect(serviceInstance.getPayload()).andReturn(controllerService).anyTimes();
+ EasyMock.replay(serviceInstance);
+
+ return serviceInstance;
+ }
+
+ /**
+ * Create mock PathChildrenCache using given controller ID and DPIDs.
+ * @param controllerId Controller ID to represent current data.
+ * @param paths List of HexString indicating switch's DPID.
+ * @param listener Callback object to be set as Listenable.
+ * @return
+ * @throws Exception
+ */
+ private PathChildrenCache createPathChildrenCacheMock(final String controllerId, final String [] paths,
+ ListenerContainer<PathChildrenCacheListener> listener) throws Exception {
+ PathChildrenCache pathChildrenCache = EasyMock.createMock(PathChildrenCache.class);
+
+ EasyMock.expect(pathChildrenCache.getListenable()).andReturn(listener).anyTimes();
+
+ pathChildrenCache.start(EasyMock.anyObject(StartMode.class));
+ EasyMock.expectLastCall().anyTimes();
+
+ List<ChildData> childs = new ArrayList<ChildData>();
+ for(String path : paths) {
+ childs.add(createChildDataMockForCurrentData(controllerId,path));
+ }
+ EasyMock.expect(pathChildrenCache.getCurrentData()).andReturn(childs).anyTimes();
+
+ pathChildrenCache.rebuild();
+ EasyMock.expectLastCall().anyTimes();
+
+ EasyMock.replay(pathChildrenCache);
+
+ return pathChildrenCache;
+ }
+
+ /**
+ * Create mock ChildData for {@link PathChildrenCache#getCurrentData()} return value.
+ * This object need to include 'sequence number' in tail of path string. ("-0" means 0th sequence)
+ * @param controllerId Controller ID
+ * @param path HexString indicating switch's DPID
+ * @return
+ */
+ private ChildData createChildDataMockForCurrentData(String controllerId, String path) {
+ ChildData data = EasyMock.createMock(ChildData.class);
+ EasyMock.expect(data.getPath()).andReturn(path + "-0").anyTimes();
+ EasyMock.expect(data.getData()).andReturn(controllerId.getBytes()).anyTimes();
+ EasyMock.replay(data);
+
+ return data;
+ }
+
+ /**
+ * Inject relations between controllers and switches using callback object.
+ * @throws Exception
+ */
+ private void setPathChildrenCache() throws Exception {
+ pathChildrenCacheListener.childEvent(client,
+ createChildDataEventMock("controller1", HexString.toHexString(1000L), PathChildrenCacheEvent.Type.CHILD_ADDED));
+ pathChildrenCacheListener.childEvent(client,
+ createChildDataEventMock("controller2", HexString.toHexString(1001L), PathChildrenCacheEvent.Type.CHILD_ADDED));
+ pathChildrenCacheListener.childEvent(client,
+ createChildDataEventMock("controller2", HexString.toHexString(1002L), PathChildrenCacheEvent.Type.CHILD_ADDED));
+ }
+
+ /**
+ * Create mock ChildDataEvent object using given controller ID and DPID.
+ * @param controllerId Controller ID.
+ * @param path HexString of DPID.
+ * @param type Event type to be set to mock object.
+ * @return
+ */
+ private PathChildrenCacheEvent createChildDataEventMock(String controllerId, String path,
+ PathChildrenCacheEvent.Type type) {
+ PathChildrenCacheEvent event = EasyMock.createMock(PathChildrenCacheEvent.class);
+ ChildData data = EasyMock.createMock(ChildData.class);
+
+ EasyMock.expect(data.getPath()).andReturn(path).anyTimes();
+ EasyMock.expect(data.getData()).andReturn(controllerId.getBytes()).anyTimes();
+ EasyMock.replay(data);
+
+ EasyMock.expect(event.getType()).andReturn(type).anyTimes();
+ EasyMock.expect(event.getData()).andReturn(data).anyTimes();
+ EasyMock.replay(event);
+
+ return event;
+ }
+}