content: package org.apache.cassandra.db.marshal;
  /*
   *
   * 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.
   *
   */
  
  import org.apache.cassandra.serializers.*;
  import org.apache.cassandra.utils.Hex;
  import org.apache.cassandra.utils.TimeUUID;
  import org.apache.cassandra.utils.UUIDGen;
  import org.junit.Test;
  
  import java.math.BigInteger;
  import java.nio.ByteBuffer;
  import java.nio.charset.StandardCharsets;
  import java.util.UUID;
  
  import static org.apache.cassandra.utils.TimeUUID.Generator.nextTimeUUID;
  
  public class RoundTripTest
  {
      @Test
      public void testInteger()
      {
          BigInteger bi = new BigInteger("1");
          assert bi.intValue() == 1;
          assert IntegerType.instance.getString(IntegerType.instance.fromString("1")).equals("1");
          assert IntegerType.instance.fromString(IntegerType.instance.getString(ByteBuffer.wrap(bi.toByteArray())))
                  .equals(ByteBuffer.wrap(bi.toByteArray()));
          assert IntegerType.instance.compose(ByteBuffer.wrap(bi.toByteArray())).equals(bi);
          assert IntegerSerializer.instance.toString(bi).equals("1");
      }
  
      @Test
      public void testLong()
      {
          byte[] v = new byte[]{0,0,0,0,0,0,0,1};
          assert LongType.instance.getString(LongType.instance.fromString("1")).equals("1");
          assert LongType.instance.fromString(LongType.instance.getString(ByteBuffer.wrap(v)))
                  .equals(ByteBuffer.wrap(v));
          assert LongType.instance.compose(ByteBuffer.wrap(v)) == 1L;
          assert LongSerializer.instance.toString(1L).equals("1");
      }
  
      @Test
      public void intLong()
      {
          byte[] v = new byte[]{0,0,0,1};
          assert Int32Type.instance.getString(Int32Type.instance.fromString("1")).equals("1");
          assert Int32Type.instance.fromString(Int32Type.instance.getString(ByteBuffer.wrap(v)))
                  .equals(ByteBuffer.wrap(v));
          assert Int32Type.instance.compose(ByteBuffer.wrap(v)) == 1;
          assert Int32Serializer.instance.toString(1).equals("1");
      }
  
      @Test
      public void testAscii() throws Exception
      {
          byte[] abc = "abc".getBytes(StandardCharsets.US_ASCII);
          assert AsciiType.instance.getString(AsciiType.instance.fromString("abc")).equals("abc");
          assert AsciiType.instance.fromString(AsciiType.instance.getString(ByteBuffer.wrap(abc)))
                  .equals(ByteBuffer.wrap(abc));
          assert AsciiType.instance.compose(ByteBuffer.wrap(abc)).equals("abc");
          assert AsciiSerializer.instance.toString("abc").equals("abc");
      }
  
      @Test
      public void testBytes()
      {
          byte[] v = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
          assert BytesType.instance.compose(ByteBuffer.wrap(v)).equals(ByteBuffer.wrap(v));
          assert BytesSerializer.instance.toString(ByteBuffer.wrap(v)).equals(Hex.bytesToHex(v));
      }
  
      @Test
      public void testLexicalUUID()
      {
          UUID uuid = nextTimeUUID().asUUID();
          assert LexicalUUIDType.instance.fromString(LexicalUUIDType.instance.getString(ByteBuffer.wrap(UUIDGen.decompose(uuid))))
                  .equals(ByteBuffer.wrap(UUIDGen.decompose(uuid)));
          assert LexicalUUIDType.instance.compose(ByteBuffer.wrap(UUIDGen.decompose(uuid))).equals(uuid);
          assert UUIDSerializer.instance.toString(uuid).equals(uuid.toString());
      }
  
      @Test
      public void testTimeUUID()
      {
          TimeUUID uuid = nextTimeUUID();
          assert TimeUUIDType.instance.getString(TimeUUIDType.instance.fromString(uuid.toString()))
                  .equals(uuid.toString());
          assert TimeUUIDType.instance.fromString(TimeUUIDType.instance.getString(uuid.toBytes()))
                  .equals(uuid.toBytes());
          assert TimeUUIDType.instance.compose(uuid.toBytes()).equals(uuid);
  
          assert uuid.equals(TimeUUIDType.instance.compose(TimeUUIDType.instance.fromString(uuid.toString())));
          assert uuid.toString().equals(uuid.toString());
      }
  
      @Test
      public void testUtf8() throws Exception
      {
          String v = "\u2297\u5432\u2376\u263d\uf543";
          assert UTF8Type.instance.getString(UTF8Type.instance.fromString(v)).equals(v);
          assert UTF8Type.instance.fromString(UTF8Type.instance.getString(ByteBuffer.wrap(v.getBytes(StandardCharsets.UTF_8))))
                  .equals(ByteBuffer.wrap(v.getBytes(StandardCharsets.UTF_8)));
          assert UTF8Type.instance.compose(ByteBuffer.wrap(v.getBytes(StandardCharsets.UTF_8))).equals(v);
          assert UTF8Serializer.instance.toString(v).equals(v);
      }
  }
  