/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.ambari.server.checks;

import org.apache.ambari.server.controller.PrereqCheckRequest;
import org.apache.ambari.server.orm.entities.StackEntity;
import org.apache.ambari.server.orm.entities.UpgradeEntity;
import org.apache.ambari.server.state.Cluster;
import org.apache.ambari.server.state.Clusters;
import org.apache.ambari.server.state.StackId;
import org.apache.ambari.server.state.stack.PrereqCheckStatus;
import org.apache.ambari.server.state.stack.PrerequisiteCheck;
import org.apache.ambari.server.state.stack.upgrade.Direction;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;

import com.google.inject.Provider;

/**
 * Unit tests for PreviousUpgradeCompleted
 *
 */
public class PreviousUpgradeCompletedTest {

  private final Clusters clusters = Mockito.mock(Clusters.class);
  private final Cluster cluster = Mockito.mock(Cluster.class);
  private StackId sourceStackId = new StackId("HDP", "2.2");
  private StackId targetStackId = new StackId("HDP", "2.2");
  private String sourceRepositoryVersion = "2.2.6.0-1234";
  private String destRepositoryVersion = "2.2.8.0-5678";
  private String clusterName = "cluster";
  private PrereqCheckRequest checkRequest = new PrereqCheckRequest(clusterName);
  private PreviousUpgradeCompleted puc = new PreviousUpgradeCompleted();

  /**
   *
   */
  @Before
  public void setup() throws Exception {
    Mockito.when(cluster.getClusterId()).thenReturn(1L);
    Mockito.when(cluster.getClusterName()).thenReturn(clusterName);
    Mockito.when(clusters.getCluster(clusterName)).thenReturn(cluster);

    StackId stackId = new StackId("HDP", "2.2");

    StackEntity stack = new StackEntity();
    stack.setStackName(stackId.getStackName());
    stack.setStackVersion(stackId.getStackVersion());

    checkRequest.setRepositoryVersion(sourceRepositoryVersion);
    checkRequest.setSourceStackId(sourceStackId);
    checkRequest.setTargetStackId(targetStackId);

    puc.clustersProvider = new Provider<Clusters>() {
      @Override
      public Clusters get() {
        return clusters;
      }
    };

  }

  @Test
  public void testPerform() throws Exception {
    // no existing upgrades
    Mockito.when(cluster.getUpgradeInProgress()).thenReturn(null);
    PrerequisiteCheck check = new PrerequisiteCheck(null, null);
    puc.perform(check, checkRequest);
    Assert.assertEquals(PrereqCheckStatus.PASS, check.getStatus());

    // existing upgrade
    UpgradeEntity upgradeInProgress = Mockito.mock(UpgradeEntity.class);
    Mockito.when(upgradeInProgress.getDirection()).thenReturn(Direction.UPGRADE);
    Mockito.when(upgradeInProgress.getClusterId()).thenReturn(1L);
    Mockito.when(upgradeInProgress.getFromVersion()).thenReturn(sourceRepositoryVersion);
    Mockito.when(upgradeInProgress.getToVersion()).thenReturn(destRepositoryVersion);

    Mockito.when(cluster.getUpgradeInProgress()).thenReturn(upgradeInProgress);
    check = new PrerequisiteCheck(null, null);
    puc.perform(check, checkRequest);
    Assert.assertEquals(PrereqCheckStatus.FAIL, check.getStatus());
  }
}