heron/schedulers/tests/java/com/twitter/heron/scheduler/kubernetes/KubernetesControllerTest.java

// Copyright 2017 Twitter. 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.

package com.twitter.heron.scheduler.kubernetes;

import java.util.Set;

import org.junit.Assert;
import org.junit.Test;

import com.twitter.heron.spi.common.Config;
import com.twitter.heron.spi.common.Key;
import com.twitter.heron.spi.packing.PackingPlan;

public class KubernetesControllerTest {

  private static final String K8S_URI = "http://k8s.uri:8080";
  private static final String NAMESPACE = "ns1";
  private static final String TOPOLOGY_NAME = "topology-name";

  private Config config = Config.newBuilder()
      .put(KubernetesContext.HERON_KUBERNETES_SCHEDULER_URI, K8S_URI).build();

  private Config configWithNamespace = Config.newBuilder().putAll(config)
      .put(KubernetesContext.HERON_KUBERNETES_SCHEDULER_NAMESPACE, NAMESPACE).build();

  private Config runtime = Config.newBuilder()
      .put(Key.TOPOLOGY_NAME, TOPOLOGY_NAME).build();

  @Test
  public void testControllerSetup() {
    final KubernetesController controller = create(config, runtime);
    Assert.assertEquals(K8S_URI, controller.getKubernetesUri());
    Assert.assertEquals("default", controller.getNamespace());
    Assert.assertEquals(TOPOLOGY_NAME, controller.getTopologyName());
  }

  @Test
  public void testControllerSetupWithNamespace() {
    final KubernetesController controller = create(configWithNamespace, runtime);
    Assert.assertEquals(K8S_URI, controller.getKubernetesUri());
    Assert.assertEquals(NAMESPACE, controller.getNamespace());
    Assert.assertEquals(TOPOLOGY_NAME, controller.getTopologyName());
  }

  private KubernetesController create(Config c, Config r) {
    return new KubernetesController(c, r) {
      @Override
      boolean submit(PackingPlan packingPlan) {
        return false;
      }

      @Override
      boolean killTopology() {
        return false;
      }

      @Override
      boolean restart(int shardId) {
        return false;
      }

      @Override
      public Set<PackingPlan.ContainerPlan>
          addContainers(Set<PackingPlan.ContainerPlan> containersToAdd) {
        return containersToAdd;
      }

      @Override
      public void removeContainers(Set<PackingPlan.ContainerPlan> containersToRemove) {

      }
    };
  }
}