[ONOS-7942] Implement k8s ingress service and watcher with unit tests
Change-Id: I8089336916e882bd31b40facf73c46c5ee541718
diff --git a/apps/k8s-networking/app/src/test/java/org/onosproject/k8snetworking/impl/K8sIngressManagerTest.java b/apps/k8s-networking/app/src/test/java/org/onosproject/k8snetworking/impl/K8sIngressManagerTest.java
new file mode 100644
index 0000000..f401207
--- /dev/null
+++ b/apps/k8s-networking/app/src/test/java/org/onosproject/k8snetworking/impl/K8sIngressManagerTest.java
@@ -0,0 +1,218 @@
+/*
+ * Copyright 2019-present Open Networking 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.
+ */
+package org.onosproject.k8snetworking.impl;
+
+import com.google.common.collect.Lists;
+import com.google.common.util.concurrent.MoreExecutors;
+import io.fabric8.kubernetes.api.model.ObjectMeta;
+import io.fabric8.kubernetes.api.model.extensions.Ingress;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.junit.TestUtils;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreServiceAdapter;
+import org.onosproject.core.DefaultApplicationId;
+import org.onosproject.event.Event;
+import org.onosproject.k8snetworking.api.K8sIngressEvent;
+import org.onosproject.k8snetworking.api.K8sIngressListener;
+import org.onosproject.store.service.TestStorageService;
+
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_CREATED;
+import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_REMOVED;
+import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_UPDATED;
+
+/**
+ * Unit tests for kubernetes ingress manager.
+ */
+public class K8sIngressManagerTest {
+
+ private static final ApplicationId TEST_APP_ID = new DefaultApplicationId(1, "test");
+
+ private static final String UNKNOWN_UID = "unknown_uid";
+ private static final String UPDATED_UID = "updated_uid";
+ private static final String UPDATED_NAME = "updated_name";
+
+ private static final String INGRESS_UID = "ingress_uid";
+ private static final String INGRESS_NAME = "ingress_name";
+
+ private static final Ingress INGRESS = createK8sIngress(INGRESS_UID, INGRESS_NAME);
+ private static final Ingress INGRESS_UPDATED = createK8sIngress(INGRESS_UID, UPDATED_NAME);
+
+ private final TestK8sIngressListener testListener = new TestK8sIngressListener();
+
+ private K8sIngressManager target;
+ private DistributedK8sIngressStore k8sIngressStore;
+
+ @Before
+ public void setUp() throws Exception {
+ k8sIngressStore = new DistributedK8sIngressStore();
+ TestUtils.setField(k8sIngressStore, "coreService", new TestCoreService());
+ TestUtils.setField(k8sIngressStore, "storageService", new TestStorageService());
+ TestUtils.setField(k8sIngressStore, "eventExecutor", MoreExecutors.newDirectExecutorService());
+ k8sIngressStore.activate();
+
+ target = new K8sIngressManager();
+ TestUtils.setField(target, "coreService", new TestCoreService());
+ target.k8sIngressStore = k8sIngressStore;
+ target.addListener(testListener);
+ target.activate();
+ }
+
+ @After
+ public void tearDown() {
+ target.removeListener(testListener);
+ k8sIngressStore.deactivate();
+ target.deactivate();
+ k8sIngressStore = null;
+ target = null;
+ }
+
+ /**
+ * Tests if getting all ingresses return correct set of ingresses.
+ */
+ @Test
+ public void testGetIngresses() {
+ createBasicIngresses();
+ assertEquals("Number of ingresses did not match", 1, target.ingresses().size());
+ }
+
+ /**
+ * Tests if getting an ingress with UID returns the correct ingress.
+ */
+ @Test
+ public void testGetIngressByUid() {
+ createBasicIngresses();
+ assertNotNull("Ingress did not match", target.ingress(INGRESS_UID));
+ assertNull("Ingress did not match", target.ingress(UNKNOWN_UID));
+ }
+
+ /**
+ * Tests creating and removing a ingress, and checks if it triggers proper events.
+ */
+ @Test
+ public void testCreateAndRemoveIngress() {
+ target.createIngress(INGRESS);
+ assertEquals("Number of ingresses did not match", 1, target.ingresses().size());
+ assertNotNull("Ingress was not created", target.ingress(INGRESS_UID));
+
+ target.removeIngress(INGRESS_UID);
+ assertEquals("Number of ingresses did not match", 0, target.ingresses().size());
+ assertNull("Ingress was not removed", target.ingress(INGRESS_UID));
+
+ validateEvents(K8S_INGRESS_CREATED, K8S_INGRESS_REMOVED);
+ }
+
+ /**
+ * Tests updating a ingress, and checks if it triggers proper events.
+ */
+ @Test
+ public void testCreateAndUpdateIngress() {
+ target.createIngress(INGRESS);
+ assertEquals("Number of ingresses did not match", 1, target.ingresses().size());
+ assertEquals("Ingress did not match", INGRESS_NAME,
+ target.ingress(INGRESS_UID).getMetadata().getName());
+
+ target.updateIngress(INGRESS_UPDATED);
+
+ assertEquals("Number of ingresses did not match", 1, target.ingresses().size());
+ assertEquals("Ingress did not match", UPDATED_NAME,
+ target.ingress(INGRESS_UID).getMetadata().getName());
+ validateEvents(K8S_INGRESS_CREATED, K8S_INGRESS_UPDATED);
+ }
+
+ /**
+ * Tests if creating a null ingress fails with an exception.
+ */
+ @Test(expected = NullPointerException.class)
+ public void testCreateNullIngress() {
+ target.createIngress(null);
+ }
+
+ /**
+ * Tests if creating a duplicate ingress fails with an exception.
+ */
+ @Test(expected = IllegalArgumentException.class)
+ public void testCreateDuplicateIngress() {
+ target.createIngress(INGRESS);
+ target.createIngress(INGRESS);
+ }
+
+ /**
+ * Tests if removing ingress with null ID fails with an exception.
+ */
+ @Test(expected = IllegalArgumentException.class)
+ public void testRemoveIngressWithNull() {
+ target.removeIngress(null);
+ }
+
+ /**
+ * Tests if updating an unregistered ingress fails with an exception.
+ */
+ @Test(expected = IllegalArgumentException.class)
+ public void testUpdateUnregisteredIngress() {
+ target.updateIngress(INGRESS);
+ }
+
+ private void createBasicIngresses() {
+ target.createIngress(INGRESS);
+ }
+
+ private static Ingress createK8sIngress(String uid, String name) {
+ ObjectMeta meta = new ObjectMeta();
+ meta.setUid(uid);
+ meta.setName(name);
+
+ Ingress ingress = new Ingress();
+ ingress.setApiVersion("v1");
+ ingress.setKind("Ingress");
+ ingress.setMetadata(meta);
+
+ return ingress;
+ }
+
+ private static class TestCoreService extends CoreServiceAdapter {
+
+ @Override
+ public ApplicationId registerApplication(String name) {
+ return TEST_APP_ID;
+ }
+ }
+
+ private static class TestK8sIngressListener implements K8sIngressListener {
+ private List<K8sIngressEvent> events = Lists.newArrayList();
+
+ @Override
+ public void event(K8sIngressEvent event) {
+ events.add(event);
+ }
+ }
+
+ private void validateEvents(Enum... types) {
+ int i = 0;
+ assertEquals("Number of events did not match", types.length, testListener.events.size());
+ for (Event event : testListener.events) {
+ assertEquals("Incorrect event received", types[i], event.type());
+ i++;
+ }
+ testListener.events.clear();
+ }
+}