/**
* Copyright 2011 Google Inc.
* Copyright 2014 Andreas Schildbach
*
* Licensed 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 com.matthewmitchell.peercoinj.core;
import com.matthewmitchell.peercoinj.core.Block;
import com.matthewmitchell.peercoinj.core.ECKey;
import com.matthewmitchell.peercoinj.core.NetworkParameters;
import com.matthewmitchell.peercoinj.core.Transaction;
import com.matthewmitchell.peercoinj.core.VerificationException;
import com.matthewmitchell.peercoinj.params.UnitTestParams;
import com.matthewmitchell.peercoinj.script.ScriptOpCodes;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.math.BigInteger;
import java.util.Arrays;
import static com.matthewmitchell.peercoinj.core.Utils.HEX;
import static org.junit.Assert.*;
public class BlockTest {
static final NetworkParameters params = UnitTestParams.get();
public static final byte[] blockBytes;
static {
// Block d189225fbecb12296349d548fef503bc095fbc827dfd442706e48b8965eea482
// One with lots of transactions in, so a good test of the merkle tree hashing.
blockBytes = HEX.decode("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}
@Test
public void testBlockVerification() throws Exception {
Block block = new Block(params, blockBytes);
block.verify();
assertEquals("d189225fbecb12296349d548fef503bc095fbc827dfd442706e48b8965eea482", block.getHashAsString());
}
@SuppressWarnings("deprecation")
@Test
public void testDate() throws Exception {
Block block = new Block(params, blockBytes);
assertEquals("27 Nov 2014 18:39:43 GMT", block.getTime().toGMTString());
}
@Test
public void testBadTransactions() throws Exception {
Block block = new Block(params, blockBytes);
// Re-arrange so the coinbase transaction is not first.
Transaction tx1 = block.transactions.get(0);
Transaction tx2 = block.transactions.get(1);
block.transactions.set(0, tx2);
block.transactions.set(1, tx1);
try {
block.verify();
fail();
} catch (VerificationException e) {
// We should get here.
}
}
@Test
public void testHeaderParse() throws Exception {
Block block = new Block(params, blockBytes);
Block header = block.cloneAsHeader();
Block reparsed = new Block(params, header.peercoinSerialize());
assertEquals(reparsed, header);
}
@Test
public void testPeercoinSerialization() throws Exception {
// We have to be able to reserialize everything exactly as we found it for hashing to work. This test also
// proves that transaction serialization works, along with all its subobjects like scripts and in/outpoints.
//
// NB: This tests the PEERCOIN proprietary serialization protocol. A different test checks Java serialization
// of transactions.
Block block = new Block(params, blockBytes);
assertArrayEquals(blockBytes, block.peercoinSerialize());
}
@Test
public void testJavaSerialiazation() throws Exception {
Block block = new Block(params, blockBytes);
Transaction tx = block.transactions.get(1);
// Serialize using Java.
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(tx);
oos.close();
byte[] javaBits = bos.toByteArray();
// Deserialize again.
ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(javaBits));
Transaction tx2 = (Transaction) ois.readObject();
ois.close();
// Note that this will actually check the transactions are equal by doing peercoin serialization and checking
// the bytestreams are the same! A true "deep equals" is not implemented for Transaction. The primary purpose
// of this test is to ensure no errors occur during the Java serialization/deserialization process.
assertEquals(tx, tx2);
}
@Test
public void testUpdateLength() {
NetworkParameters params = UnitTestParams.get();
Block block = params.getGenesisBlock().createNextBlockWithCoinbase(new ECKey().getPubKey());
assertEquals(block.peercoinSerialize().length, block.length);
final int origBlockLen = block.length;
Transaction tx = new Transaction(params);
// this is broken until the transaction has > 1 input + output (which is required anyway...)
//assertTrue(tx.length == tx.peercoinSerialize().length && tx.length == 8);
byte[] outputScript = new byte[10];
Arrays.fill(outputScript, (byte) ScriptOpCodes.OP_FALSE);
tx.addOutput(new TransactionOutput(params, null, Coin.SATOSHI, outputScript));
tx.addInput(new TransactionInput(params, null, new byte[] {(byte) ScriptOpCodes.OP_FALSE},
new TransactionOutPoint(params, 0, Sha256Hash.create(new byte[] {1}))));
int origTxLength = 8 + 2 + 8 + 1 + 10 + 40 + 1 + 1 + 4; //ppcoin: 4 for timestamp
assertEquals(tx.peercoinSerialize().length, tx.length);
assertEquals(origTxLength, tx.length);
block.addTransaction(tx);
assertEquals(block.peercoinSerialize().length, block.length);
assertEquals(origBlockLen + tx.length, block.length);
block.getTransactions().get(1).getInputs().get(0).setScriptBytes(new byte[] {(byte) ScriptOpCodes.OP_FALSE, (byte) ScriptOpCodes.OP_FALSE});
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength + 1);
block.getTransactions().get(1).getInputs().get(0).setScriptBytes(new byte[] {});
assertEquals(block.length, block.peercoinSerialize().length);
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength - 1);
block.getTransactions().get(1).addInput(new TransactionInput(params, null, new byte[] {(byte) ScriptOpCodes.OP_FALSE},
new TransactionOutPoint(params, 0, Sha256Hash.create(new byte[] {1}))));
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength + 41); // - 1 + 40 + 1 + 1
}
}