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   * 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.cassandra.service.accord.api;
  
  import java.io.IOException;
  
  import org.junit.Assert;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.SchemaLoader;
  import org.apache.cassandra.db.DecoratedKey;
  import org.apache.cassandra.dht.IPartitioner;
  import org.apache.cassandra.io.Serializers;
  import org.apache.cassandra.schema.KeyspaceParams;
  import org.apache.cassandra.schema.Schema;
  import org.apache.cassandra.schema.TableId;
  import org.apache.cassandra.utils.ByteBufferUtil;
  
  import static org.apache.cassandra.cql3.statements.schema.CreateTableStatement.parse;
  
  public class AccordKeyTest
  {
      private static final TableId TABLE1 = TableId.fromString("00000000-0000-0000-0000-000000000001");
      private static final TableId TABLE2 = TableId.fromString("00000000-0000-0000-0000-000000000002");
  
      @BeforeClass
      public static void setupClass()
      {
          SchemaLoader.prepareServer();
          SchemaLoader.createKeyspace("ks", KeyspaceParams.simple(1),
                                      parse("CREATE TABLE tbl1 (k int, c int, v int, primary key (k, c)) WITH transactional_mode='full'", "ks").id(TABLE1),
                                      parse("CREATE TABLE tbl2 (k int, c int, v int, primary key (k, c)) WITH transactional_mode='full'", "ks").id(TABLE2));
  
      }
  
      public static IPartitioner partitioner(TableId tableId)
      {
          return Schema.instance.getTableMetadata(tableId).partitioner;
      }
  
      @Test
      public void partitionKeyTest() throws IOException
      {
          DecoratedKey dk = partitioner(TABLE1).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk = new PartitionKey(TABLE1, dk);
          Serializers.testSerde(PartitionKey.serializer, pk);
      }
  
      @Test
      public void tokenKeyTest() throws IOException
      {
          DecoratedKey dk = partitioner(TABLE1).decorateKey(ByteBufferUtil.bytes(5));
          TokenKey pk = new TokenKey(TABLE1, dk.getToken());
          Serializers.testSerde(TokenKey.serializer, pk);
      }
  
      @Test
      public void comparisonTest()
      {
          DecoratedKey dk = partitioner(TABLE1).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk = new PartitionKey(TABLE1, dk);
          TokenKey tk = new TokenKey(TABLE1, dk.getToken());
          TokenKey tkLow = new TokenKey(TABLE1, dk.getToken().decreaseSlightly());
          TokenKey tkHigh = new TokenKey(TABLE1, dk.getToken().increaseSlightly());
  
          Assert.assertTrue(tk.compareTo(pk) > 0);
          Assert.assertTrue(tkLow.compareTo(pk) < 0);
          Assert.assertTrue(pk.compareTo(tkHigh) < 0);
      }
  
      @Test
      public void tableComparisonTest()
      {
          Assert.assertTrue(TABLE1.compareTo(TABLE2) < 0);
  
          DecoratedKey dk1 = partitioner(TABLE1).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk1 = new PartitionKey(TABLE1, dk1);
  
          DecoratedKey dk2 = partitioner(TABLE2).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk2 = new PartitionKey(TABLE2, dk2);
  
          Assert.assertTrue(pk1.compareTo(pk2) < 0);
      }
  
      @Test
      public void sentinelComparisonTest()
      {
          Assert.assertTrue(TABLE1.compareTo(TABLE2) < 0);
          DecoratedKey dk1 = partitioner(TABLE1).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk1 = new PartitionKey(TABLE1, dk1);
  
          DecoratedKey dk2 = partitioner(TABLE2).decorateKey(ByteBufferUtil.bytes(5));
          PartitionKey pk2 = new PartitionKey(TABLE2, dk2);
  
          TokenKey loSentinel = TokenKey.min(TABLE1, partitioner(TABLE1));
          TokenKey hiSentinel = TokenKey.max(TABLE1, partitioner(TABLE1));
          Assert.assertTrue(loSentinel.compareTo(hiSentinel) < 0);
          Assert.assertTrue(pk1.compareTo(loSentinel) > 0);
          Assert.assertTrue(loSentinel.compareTo(pk1) < 0);
          Assert.assertTrue(pk1.compareTo(hiSentinel) < 0);
          Assert.assertTrue(hiSentinel.compareTo(pk1) > 0);
          Assert.assertTrue(hiSentinel.compareTo(pk2) < 0);
      }
  }
  