content: // 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 com.cloud.upgrade;
  
  import com.cloud.upgrade.dao.DbUpgrade;
  import com.cloud.upgrade.dao.Upgrade41110to41120;
  import com.cloud.upgrade.dao.Upgrade41120to41130;
  import com.cloud.upgrade.dao.Upgrade41120to41200;
  import com.cloud.upgrade.dao.Upgrade41500to41510;
  import com.cloud.upgrade.dao.Upgrade41510to41520;
  import com.cloud.upgrade.dao.Upgrade41520to41600;
  import com.cloud.upgrade.dao.Upgrade41720to41800;
  import com.cloud.upgrade.dao.Upgrade481to490;
  import org.apache.cloudstack.utils.CloudStackVersion;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import java.io.InputStream;
  import java.sql.Connection;
  
  import static org.junit.Assert.assertEquals;
  
  public class DatabaseVersionHierarchyTest {
  
      private static DatabaseVersionHierarchy hierarchy;
  
      static class DummyUpgrade implements DbUpgrade {
          @Override
          public String[] getUpgradableVersionRange() {
              return new String[0];
          }
  
          @Override
          public String getUpgradedVersion() {
              return null;
          }
  
          @Override
          public boolean supportsRollingUpgrade() {
              return false;
          }
  
          @Override
          public InputStream[] getPrepareScripts() {
              return new InputStream[0];
          }
  
          @Override
          public void performDataMigration(Connection conn) {
  
          }
  
          @Override
          public InputStream[] getCleanupScripts() {
              return new InputStream[0];
          }
  
      }
  
      @BeforeClass
      public static void init() {
          DatabaseVersionHierarchy.DatabaseVersionHierarchyBuilder builder = DatabaseVersionHierarchy.builder()
                  .next("0.0.5", new DummyUpgrade())
                  .next("1.0.0.0", new DummyUpgrade())
                  .next("1.0.1"   , new DummyUpgrade())
                  .next("1.2.0"   , new DummyUpgrade())
                  .next("2.0.0"   , new DummyUpgrade())
                  .next("2.3.2"   , new DummyUpgrade())
                  .next("3.4.5.6"   , new DummyUpgrade())
                  .next("4.8.2.0" , new Upgrade481to490())
                  .next("4.9.10.11"   , new DummyUpgrade())
                  .next("4.11.1.0", new Upgrade41110to41120())
                  .next("4.11.2.0", new Upgrade41120to41130())
                  .next("4.11.3.0", new Upgrade41120to41200())
                  .next("4.15.0.0", new Upgrade41500to41510())
                  .next("4.15.1.0", new Upgrade41510to41520())
                  .next("4.15.2.0", new Upgrade41520to41600())
                  .next("4.15.4", new DummyUpgrade())
                  .next("4.17.2.0", new Upgrade41720to41800());
          hierarchy = builder.build();
      }
  
      @Test
      public void getRecentVersionMiddle() {
          assertEquals("2.0.0", hierarchy.getRecentVersion(CloudStackVersion.parse("2.2.2")).toString());
      }
      @Test
      public void getRecentVersionEarly() {
          assertEquals(null, hierarchy.getRecentVersion(CloudStackVersion.parse("0.0.2")));
      }
      @Test
      public void getRecentVersionStart() {
          assertEquals(null, hierarchy.getRecentVersion(CloudStackVersion.parse("0.0.5")));
      }
      @Test
      public void getRecentVersionJust() {
          assertEquals("0.0.5", hierarchy.getRecentVersion(CloudStackVersion.parse("0.0.9")).toString());
      }
      @Test
      public void getRecentVersionExact() {
          assertEquals("0.0.5", hierarchy.getRecentVersion(CloudStackVersion.parse("1.0.0.0")).toString());
      }
  }
  