code: /*
   * 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.datasketches.memory.internal;
  
  import static org.testng.Assert.assertEquals;
  
  import java.nio.ByteBuffer;
  
  import org.apache.datasketches.memory.Memory;
  import org.apache.datasketches.memory.WritableMemory;
  import org.testng.annotations.Test;
  
  /**
   * Although allocating zero bytes may be a bug, it is tolerated in Java.
   *
   * @author Lee Rhodes
   */
  public class ZeroCapacityTest {
  
    @Test
    public void checkZeroCapacity() throws Exception {
      WritableMemory wmem = WritableMemory.allocate(0);
      assertEquals(wmem.getCapacity(), 0);
  
      Memory.wrap(new byte[0]);
      Memory.wrap(ByteBuffer.allocate(0));
      Memory mem3 = Memory.wrap(ByteBuffer.allocateDirect(0));
      mem3.region(0, 0);
      WritableMemory mem = WritableMemory.allocateDirect(0);
      mem.close();
    }
  
    @Test
    public void printlnTest() {
      //println("PRINTING: "+this.getClass().getName());
    }
  
    /**
     * @param s value to print
     */
    static void println(String s) {
      //System.out.println(s); //disable here
    }
  
  }
  