test/java/src/DeepCopyTest.java

package com.facebook.thrift.test;

import com.facebook.thrift.TDeserializer;
import com.facebook.thrift.TSerializer;
import com.facebook.thrift.protocol.TBinaryProtocol;
import thrift.test.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;

public class DeepCopyTest {

  private static final byte[] kUnicodeBytes = {
    (byte)0xd3, (byte)0x80, (byte)0xe2, (byte)0x85, (byte)0xae, (byte)0xce,
    (byte)0x9d, (byte)0x20, (byte)0xd0, (byte)0x9d, (byte)0xce, (byte)0xbf,
    (byte)0xe2, (byte)0x85, (byte)0xbf, (byte)0xd0, (byte)0xbe, (byte)0xc9,
    (byte)0xa1, (byte)0xd0, (byte)0xb3, (byte)0xd0, (byte)0xb0, (byte)0xcf,
    (byte)0x81, (byte)0xe2, (byte)0x84, (byte)0x8e, (byte)0x20, (byte)0xce,
    (byte)0x91, (byte)0x74, (byte)0x74, (byte)0xce, (byte)0xb1, (byte)0xe2,
    (byte)0x85, (byte)0xbd, (byte)0xce, (byte)0xba, (byte)0x83, (byte)0xe2,
    (byte)0x80, (byte)0xbc
  };

  public static void main(String[] args) throws Exception {
    TSerializer   binarySerializer   = new   TSerializer(new TBinaryProtocol.Factory());
    TDeserializer binaryDeserializer = new TDeserializer(new TBinaryProtocol.Factory());

    OneOfEach ooe = new OneOfEach();
    ooe.im_true = true;
    ooe.im_false = false;
    ooe.a_bite = (byte) 0xd6;
    ooe.integer16 = 27000;
    ooe.integer32 = 1 << 24;
    ooe.integer64 = (long) 6000 * 1000 * 1000;
    ooe.double_precision = Math.PI;
    ooe.some_characters = "JSON THIS! \"\1";
    ooe.zomg_unicode = new String(kUnicodeBytes, "UTF-8");
    ooe.base64 = "string to bytes".getBytes();

    Nesting n = new Nesting(new Bonk(), new OneOfEach());
    n.my_ooe.integer16 = 16;
    n.my_ooe.integer32 = 32;
    n.my_ooe.integer64 = 64;
    n.my_ooe.double_precision = (Math.sqrt(5) + 1) / 2;
    n.my_ooe.some_characters = ":R (me going \"rrrr\")";
    n.my_ooe.zomg_unicode = new String(kUnicodeBytes, "UTF-8");
    n.my_bonk.type = 31337;
    n.my_bonk.message = "I am a bonk... xor!";

    HolyMoley hm = new HolyMoley();

    hm.big = new ArrayList<OneOfEach>();
    hm.big.add(ooe);
    hm.big.add(n.my_ooe);
    hm.big.get(0).a_bite = (byte) 0x22;
    hm.big.get(1).a_bite = (byte) 0x23;

    hm.contain = new HashSet<List<String>>();
    ArrayList<String> stage1 = new ArrayList<String>(2);
    stage1.add("and a one");
    stage1.add("and a two");
    hm.contain.add(stage1);
    stage1 = new ArrayList<String>(3);
    stage1.add("then a one, two");
    stage1.add("three!");
    stage1.add("FOUR!!");
    hm.contain.add(stage1);
    stage1 = new ArrayList<String>(0);
    hm.contain.add(stage1);

    ArrayList<Bonk> stage2 = new ArrayList<Bonk>();
    hm.bonks = new HashMap<String, List<Bonk>>();
    hm.bonks.put("nothing", stage2);
    Bonk b = new Bonk();
    b.type = 1;
    b.message = "Wait.";
    stage2.add(b);
    b = new Bonk();
    b.type = 2;
    b.message = "What?";
    stage2.add(b);
    stage2 = new ArrayList<Bonk>();
    hm.bonks.put("something", stage2);
    b = new Bonk();
    b.type = 3;
    b.message = "quoth";
    b = new Bonk();
    b.type = 4;
    b.message = "the raven";
    b = new Bonk();
    b.type = 5;
    b.message = "nevermore";
    hm.bonks.put("poe", stage2);


    byte[] binaryCopy = binarySerializer.serialize(hm);
    HolyMoley hmCopy = new HolyMoley();
    binaryDeserializer.deserialize(hmCopy, binaryCopy);
    HolyMoley hmCopy2 = new HolyMoley(hm);

    if (!hm.equals(hmCopy))
      throw new RuntimeException("copy constructor modified the original object!");
    if (!hmCopy.equals(hmCopy2))
      throw new RuntimeException("copy constructor generated incorrect copy");

    hm.big.get(0).base64[0]++; // change binary value in original object
    if (hm.equals(hmCopy2)) // make sure the change didn't propagate to the copied object
      throw new RuntimeException("Binary field not copied correctly!");
    hm.big.get(0).base64[0]--; // undo change

    hmCopy2.bonks.get("nothing").get(1).message = "What else?";

    if (hm.equals(hmCopy2))
      throw new RuntimeException("A deep copy was not done!");

  }
}