EventTest.java

/*
 * Copyright (C) 2015 Red Hat, Inc.
 *
 * 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 io.fabric8.kubernetes.client.mock;

import io.fabric8.kubernetes.api.model.Event;
import io.fabric8.kubernetes.api.model.EventBuilder;
import io.fabric8.kubernetes.api.model.EventList;
import io.fabric8.kubernetes.api.model.EventListBuilder;
import io.fabric8.kubernetes.api.model.WatchEvent;
import io.fabric8.kubernetes.client.KubernetesClient;
import io.fabric8.kubernetes.client.Watch;
import io.fabric8.kubernetes.client.Watcher;
import io.fabric8.kubernetes.client.WatcherException;
import io.fabric8.kubernetes.client.server.mock.EnableKubernetesMockClient;
import io.fabric8.kubernetes.client.server.mock.KubernetesMockServer;
import io.fabric8.kubernetes.client.utils.Utils;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import java.net.HttpURLConnection;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

@EnableKubernetesMockClient
class EventTest {

  KubernetesMockServer server;
  KubernetesClient client;

  @Test
  @DisplayName("Should be able to watch events in specified namespace")
  void watch() throws InterruptedException {
    // Given
    Event testEvent = new EventBuilder()
        .withNewMetadata()
        .withName("nginx-deployment-54f57cf6bf-84ssh.161e26b7b76b629e")
        .withNamespace("ns1")
        .endMetadata()
        .build();

    server.expect()
        .withPath("/api/v1/namespaces/ns1/events?allowWatchBookmarks=true&watch=true")
        .andUpgradeToWebSocket().open().waitFor(50)
        .andEmit(new WatchEvent(testEvent, "ADDED"))
        .done().once();
    final CountDownLatch eventReceivedLatch = new CountDownLatch(1);

    // When
    Watch watch = client.v1().events().inNamespace("ns1").watch(new Watcher<Event>() {
      @Override
      public void eventReceived(Action action, Event resource) {
        eventReceivedLatch.countDown();
      }

      @Override
      public void onClose(WatcherException cause) {

      }
    });

    // Then
    assertTrue(eventReceivedLatch.await(10, TimeUnit.SECONDS));
    watch.close();
  }

  @Test
  void testInvolvedObjectFieldQuery() {
    // Given
    server.expect().get().withPath("/api/v1/namespaces/ns1/events?fieldSelector="
        + Utils.toUrlEncoded("involvedObject.name=foo," +
            "involvedObject.namespace=ns1," +
            "involvedObject.kind=Deployment," +
            "involvedObject.uid=6d71451a-f8df-11ea-a8ac-0e13a02d8ebd"))
        .andReturn(HttpURLConnection.HTTP_OK, new EventListBuilder().withItems(new EventBuilder()
            .withNewMetadata().withName("foo-event").endMetadata()
            .build())
            .build())
        .once();

    // When
    EventList eventList = client.v1().events().inNamespace("ns1")
        .withInvolvedObject(new io.fabric8.kubernetes.api.model.ObjectReferenceBuilder()
            .withName("foo")
            .withNamespace("ns1")
            .withKind("Deployment")
            .withUid("6d71451a-f8df-11ea-a8ac-0e13a02d8ebd")
            .build())
        .list();

    // Then
    assertNotNull(eventList);
    assertEquals(1, eventList.getItems().size());
  }
}