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.kafka.image;
  
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.common.metadata.RemoveAccessControlEntryRecord;
  import org.apache.kafka.image.writer.RecordListWriter;
  import org.apache.kafka.metadata.RecordTestUtils;
  import org.apache.kafka.metadata.authorizer.StandardAcl;
  import org.apache.kafka.metadata.authorizer.StandardAclWithId;
  import org.apache.kafka.server.common.ApiMessageAndVersion;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Optional;
  
  import static org.apache.kafka.metadata.authorizer.StandardAclWithIdTest.TEST_ACLS;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  
  @Timeout(value = 40)
  public class AclsImageTest {
      public static final AclsImage IMAGE1;
  
      public static final List<ApiMessageAndVersion> DELTA1_RECORDS;
  
      static final AclsDelta DELTA1;
  
      static final AclsImage IMAGE2;
  
      static {
          Map<Uuid, StandardAcl> map = new HashMap<>();
          for (int i = 0; i < 4; i++) {
              StandardAclWithId aclWithId = TEST_ACLS.get(i);
              map.put(aclWithId.id(), aclWithId.acl());
          }
          IMAGE1 = new AclsImage(map);
  
          DELTA1_RECORDS = new ArrayList<>();
          DELTA1_RECORDS.add(new ApiMessageAndVersion(new RemoveAccessControlEntryRecord().
              setId(Uuid.fromString("QZDDv-R7SyaPgetDPGd0Mw")), (short) 0));
          DELTA1_RECORDS.add(new ApiMessageAndVersion(TEST_ACLS.get(4).toRecord(), (short) 0));
  
          DELTA1 = new AclsDelta(IMAGE1);
          RecordTestUtils.replayAll(DELTA1, DELTA1_RECORDS);
  
  
          Map<Uuid, StandardAcl> map2 = new HashMap<>();
          for (int i = 1; i < 5; i++) {
              StandardAclWithId aclWithId = TEST_ACLS.get(i);
              map2.put(aclWithId.id(), aclWithId.acl());
          }
          IMAGE2 = new AclsImage(map2);
      }
  
      @Test
      public void testEmptyImageRoundTrip() {
          testToImage(AclsImage.EMPTY);
      }
  
      @Test
      public void testImage1RoundTrip() {
          testToImage(IMAGE1);
      }
  
      @Test
      public void testApplyDelta1() {
          assertEquals(IMAGE2, DELTA1.apply());
          // check image1 + delta1 = image2, since records for image1 + delta1 might differ from records from image2
          List<ApiMessageAndVersion> records = getImageRecords(IMAGE1);
          records.addAll(DELTA1_RECORDS);
          testToImage(IMAGE2, records);
      }
  
      @Test
      public void testImage2RoundTrip() {
          testToImage(IMAGE2);
      }
  
      private static void testToImage(AclsImage image) {
          testToImage(image, Optional.empty());
      }
  
      private static void testToImage(AclsImage image, Optional<List<ApiMessageAndVersion>> fromRecords) {
          testToImage(image, fromRecords.orElseGet(() -> getImageRecords(image)));
      }
  
      private static void testToImage(AclsImage image, List<ApiMessageAndVersion> fromRecords) {
          // test from empty image stopping each of the various intermediate images along the way
          new RecordTestUtils.TestThroughAllIntermediateImagesLeadingToFinalImageHelper<>(
              () -> AclsImage.EMPTY,
              AclsDelta::new
          ).test(image, fromRecords);
      }
  
      private static List<ApiMessageAndVersion> getImageRecords(AclsImage image) {
          RecordListWriter writer = new RecordListWriter();
          image.write(writer);
          return writer.records();
      }
  }
  