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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
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   * See the License for the specific language governing permissions and
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  package org.apache.cassandra.tools.nodetool.mock;
  
  import java.util.List;
  import java.util.Map;
  
  import org.junit.Test;
  
  import org.apache.cassandra.service.StorageServiceMBean;
  import org.apache.cassandra.tools.ToolRunner;
  import org.assertj.core.api.Assertions;
  
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.Mockito.when;
  
  public class GetConcurrencyMockTest extends AbstractNodetoolMock
  {
      @Test
      public void testGetConcurrency()
      {
          Map<String, List<Integer>> concurrency = Map.of("keyspace1", List.of(1, 2, 3),
                                                          "keyspace2", List.of(4, 5, 6));
          StorageServiceMBean mock = getMock(STORAGE_SERVICE_MBEAN);
          when(mock.getConcurrency(anyList())).thenReturn(concurrency);
          ToolRunner.ToolResult tool = invokeNodetool("getconcurrency");
          tool.assertOnCleanExit();
          Assertions.assertThat(tool.getStdout()).contains("Stage                        CorePoolSize MaximumPoolSize");
          Assertions.assertThat(tool.getStdout()).contains("keyspace1                               1               2");
          Assertions.assertThat(tool.getStdout()).contains("keyspace2                               4               5");
      }
  }
  