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.cassandra.db;
  
  import java.util.Arrays;
  import java.util.Random;
  
  import com.google.common.collect.ImmutableSet;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.dht.ByteOrderedPartitioner;
  import org.apache.cassandra.dht.IPartitioner;
  import org.apache.cassandra.dht.Murmur3Partitioner;
  import org.apache.cassandra.dht.OrderPreservingPartitioner;
  import org.apache.cassandra.dht.RandomPartitioner;
  import org.apache.cassandra.dht.Range;
  import org.apache.cassandra.dht.Token;
  import org.assertj.core.api.Assertions;
  import org.mockito.Mockito;
  import org.quicktheories.core.Gen;
  import org.quicktheories.impl.Constraint;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.quicktheories.QuickTheory.qt;
  
  public class ColumnFamilyStoreMBeanTest
  {
      @BeforeClass
      public static void setup()
      {
          // can't use client due to the fact thread pools startup and fail due to config issues
          DatabaseDescriptor.daemonInitialization();
      }
  
      @Test
      public void testToTokenRangesMurmur3Partitioner()
      {
          testToTokenRanges(Murmur3Partitioner.instance);
      }
  
      @Test
      public void testToTokenRangesRandomPartitioner()
      {
          testToTokenRanges(RandomPartitioner.instance);
      }
  
      @Test
      public void testToTokenRangesOrderPreservingPartitioner()
      {
          testToTokenRanges(OrderPreservingPartitioner.instance);
      }
  
      @Test
      public void testToTokenRangesByteOrderedPartitioner()
      {
          testToTokenRanges(ByteOrderedPartitioner.instance);
      }
  
      @Test
      public void testInvalidateTokenRangesFormat()
      {
          ColumnFamilyStore store = Mockito.mock(ColumnFamilyStore.class);
          Mockito.when(store.getPartitioner()).thenReturn(ByteOrderedPartitioner.instance);
          Mockito.doCallRealMethod().when(store).forceCompactionForTokenRanges(Mockito.any());
          IPartitioner previous = DatabaseDescriptor.getPartitioner();
          try
          {
              DatabaseDescriptor.setPartitionerUnsafe(ByteOrderedPartitioner.instance);
  
              for (String s : Arrays.asList("testing", "t1:", ":t2", "spaces should not have an impact"))
                  Assertions.assertThatThrownBy(() -> store.forceCompactionForTokenRanges(s))
                            .hasMessageStartingWith(String.format("Unable to parse token range %s;", s));
          }
          finally
          {
              DatabaseDescriptor.setPartitionerUnsafe(previous);
          }
  
      }
  
      private static void testToTokenRanges(IPartitioner partitioner)
      {
          Token.TokenFactory tokenFactory = partitioner.getTokenFactory();
          Gen<Token> tokenGen = tokenGen(partitioner);
          qt().forAll(tokenGen, tokenGen)
              .checkAssert((left, right) ->
                           assertThat(ColumnFamilyStore.toTokenRanges(partitioner, toString(tokenFactory, left, right)))
                           .isEqualTo(ImmutableSet.of(new Range<>(left, right))));
      }
  
      private static String toString(Token.TokenFactory tokenFactory, Token left, Token right)
      {
          return tokenFactory.toString(left) + ColumnFamilyStore.TOKEN_DELIMITER + tokenFactory.toString(right);
      }
  
      private static Gen<Token> tokenGen(IPartitioner partitioner)
      {
          // Random and RandomSource can not share the same seed, but there is a workaround...
          // use RandomSource to generate a seed!
          return rs -> partitioner.getRandomToken(new Random(rs.next(Constraint.none())));
      }
  }
  