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 org.apache.bifromq.basekv.raft.functest;
  
  import static com.google.protobuf.ByteString.EMPTY;
  import static com.google.protobuf.ByteString.copyFromUtf8;
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertTrue;
  import static org.testng.Assert.fail;
  
  import org.apache.bifromq.basekv.raft.exception.CompactionException;
  import org.apache.bifromq.basekv.raft.functest.annotation.Cluster;
  import org.apache.bifromq.basekv.raft.functest.template.SharedRaftConfigTestTemplate;
  import com.google.protobuf.ByteString;
  import lombok.extern.slf4j.Slf4j;
  import org.testng.annotations.Test;
  
  @Slf4j
  public class CompactionTest extends SharedRaftConfigTestTemplate {
      @Cluster(v = "V1")
      @Test(groups = "integration")
      public void compact() {
          String leader = group.currentLeader().get();
          assertTrue(group.awaitIndexCommitted(leader, 1));
          long logIndex = group.propose(leader, copyFromUtf8("appCommand1")).join();
          group.compact(leader, EMPTY, logIndex).join();
          assertEquals(group.latestSnapshot(leader), EMPTY);
      }
  
      @Cluster(v = "V1")
      @Test(groups = "integration")
      public void compactAndReplaceSnapshot() {
          String leader = group.currentLeader().get();
          assertTrue(group.awaitIndexCommitted(leader, 1));
          long logIndex = group.propose(leader, copyFromUtf8("appCommand1")).join();
          group.compact(leader, EMPTY, logIndex).join();
          assertEquals(group.latestSnapshot(leader), EMPTY);
  
          ByteString fsmSnapshot = ByteString.copyFromUtf8("hello");
          group.compact(leader, fsmSnapshot, logIndex).join();
          assertEquals(group.latestSnapshot(leader), fsmSnapshot);
      }
  
      @Cluster(v = "V1")
      @Test(groups = "integration")
      public void compactUsingStaleSnapshot() {
          String leader = group.currentLeader().get();
          assertTrue(group.awaitIndexCommitted(leader, 1));
          long logIndex = group.propose(leader, copyFromUtf8("appCommand1")).join();
          group.compact(leader, EMPTY, logIndex).join();
          assertEquals(group.latestSnapshot(leader), EMPTY);
  
          ByteString fsmSnapshot = ByteString.copyFromUtf8("hello");
          try {
              group.compact(leader, fsmSnapshot, logIndex - 1).join();
              fail();
          } catch (Throwable e) {
              assertTrue(e.getCause() instanceof CompactionException.StaleSnapshotException);
          }
      }
  }
  