hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestCapacityReservationSystem.java

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package org.apache.hadoop.yarn.server.resourcemanager.reservation;

import java.io.IOException;

import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
import org.junit.Assert;
import org.junit.Test;

public class TestCapacityReservationSystem {

  @Test
  public void testInitialize() {
    ReservationSystemTestUtil testUtil = new ReservationSystemTestUtil();
    CapacityScheduler capScheduler = null;
    try {
      capScheduler = testUtil.mockCapacityScheduler(10);
    } catch (IOException e) {
      Assert.fail(e.getMessage());
    }
    CapacityReservationSystem reservationSystem =
        new CapacityReservationSystem();
    reservationSystem.setRMContext(capScheduler.getRMContext());
    try {
      reservationSystem.reinitialize(capScheduler.getConf(),
          capScheduler.getRMContext());
    } catch (YarnException e) {
      Assert.fail(e.getMessage());
    }
    String planQName = testUtil.getreservationQueueName();
    ReservationSystemTestUtil.validateReservationQueue(reservationSystem,
        planQName);
  }

  @Test
  public void testReinitialize() {
    ReservationSystemTestUtil testUtil = new ReservationSystemTestUtil();
    CapacityScheduler capScheduler = null;
    try {
      capScheduler = testUtil.mockCapacityScheduler(10);
    } catch (IOException e) {
      Assert.fail(e.getMessage());
    }
    CapacityReservationSystem reservationSystem =
        new CapacityReservationSystem();
    CapacitySchedulerConfiguration conf = capScheduler.getConfiguration();
    RMContext mockContext = capScheduler.getRMContext();
    reservationSystem.setRMContext(mockContext);
    try {
      reservationSystem.reinitialize(capScheduler.getConfiguration(),
          mockContext);
    } catch (YarnException e) {
      Assert.fail(e.getMessage());
    }
    // Assert queue in original config
    String planQName = testUtil.getreservationQueueName();
    ReservationSystemTestUtil.validateReservationQueue(reservationSystem, planQName);

    // Dynamically add a plan
    String newQ = "reservation";
    Assert.assertNull(reservationSystem.getPlan(newQ));
    testUtil.updateQueueConfiguration(conf, newQ);
    try {
      capScheduler.reinitialize(conf, mockContext);
    } catch (IOException e) {
      Assert.fail(e.getMessage());
    }
    try {
      reservationSystem.reinitialize(conf, mockContext);
    } catch (YarnException e) {
      Assert.fail(e.getMessage());
    }
    ReservationSystemTestUtil.validateNewReservationQueue(reservationSystem, newQ);
  }
}