Examples with Blockchain org.ethereum.core.Blockchain used on opensource projects

Example 46 with Blockchain

use of org.ethereum.core.Blockchain in project rskj by rsksmart.

the class MinerManagerTest method refreshWorkRunTwice.

@Test
public void refreshWorkRunTwice() {
    World world = new World();
    Blockchain blockchain = world.getBlockChain();
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    MinerServerImpl minerServer = getMinerServer(blockchain);
    MinerClientImpl minerClient = getMinerClient(minerServer);
    MinerClientImpl.RefreshWork refreshWork = minerClient.createRefreshWork();
    Assert.assertNotNull(refreshWork);
    try {
        minerServer.buildBlockToMine(blockchain.getBestBlock(), false);
        refreshWork.run();
        Assert.assertTrue(minerClient.mineBlock());
        minerServer.buildBlockToMine(blockchain.getBestBlock(), false);
        refreshWork.run();
        Assert.assertTrue(minerClient.mineBlock());
        Assert.assertEquals(2, blockchain.getBestBlock().getNumber());
    } finally {
        refreshWork.cancel();
    }
}

Example 47 with Blockchain

use of org.ethereum.core.Blockchain in project rskj by rsksmart.

the class MinerManagerTest method mineBlockWhileSyncingBlocks.

@Test
public void mineBlockWhileSyncingBlocks() {
    World world = new World();
    Blockchain blockchain = world.getBlockChain();
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    RskImplForTest rsk = new RskImplForTest() {

        @Override
        public boolean hasBetterBlockToSync() {
            return true;
        }
    };
    MinerServerImpl minerServer = getMinerServer(blockchain);
    MinerClientImpl minerClient = getMinerClient(rsk, minerServer);
    minerServer.buildBlockToMine(blockchain.getBestBlock(), false);
    Assert.assertFalse(minerClient.mineBlock());
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
}

Example 48 with Blockchain

use of org.ethereum.core.Blockchain in project rskj by rsksmart.

the class MinerManagerTest method mineBlockTwiceReusingTheSameWork.

@Test
public void mineBlockTwiceReusingTheSameWork() {
    World world = new World();
    Blockchain blockchain = world.getBlockChain();
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    MinerServerImpl minerServer = getMinerServer(blockchain);
    MinerClientImpl minerClient = getMinerClient(minerServer);
    minerServer.buildBlockToMine(blockchain.getBestBlock(), false);
    MinerWork minerWork = minerServer.getWork();
    Assert.assertNotNull(minerWork);
    Assert.assertTrue(minerClient.mineBlock());
    Block bestBlock = blockchain.getBestBlock();
    Assert.assertNotNull(bestBlock);
    Assert.assertEquals(1, bestBlock.getNumber());
    // reuse the same work
    Assert.assertNotNull(minerServer.getWork());
    Assert.assertTrue(minerClient.mineBlock());
    List<Block> blocks = blockchain.getBlocksByNumber(1);
    Assert.assertNotNull(blocks);
    Assert.assertEquals(2, blocks.size());
    Assert.assertFalse(blocks.get(0).getHash().equals(blocks.get(1).getHash()));
}

Example 49 with Blockchain

use of org.ethereum.core.Blockchain in project rskj by rsksmart.

the class MinerManagerTest method mineBlock.

@Test
public void mineBlock() {
    World world = new World();
    Blockchain blockchain = world.getBlockChain();
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    MinerManager manager = new MinerManager();
    MinerServerImpl minerServer = getMinerServer(blockchain);
    MinerClientImpl minerClient = getMinerClient(minerServer);
    manager.mineBlock(blockchain, minerClient, minerServer);
    Assert.assertEquals(1, blockchain.getBestBlock().getNumber());
    Assert.assertFalse(blockchain.getBestBlock().getTransactionsList().isEmpty());
    SnapshotManager snapshotManager = new SnapshotManager();
    snapshotManager.resetSnapshots(blockchain);
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    manager.mineBlock(blockchain, minerClient, minerServer);
    manager.mineBlock(blockchain, minerClient, minerServer);
    Assert.assertEquals(2, blockchain.getBestBlock().getNumber());
    snapshotManager.resetSnapshots(blockchain);
    Assert.assertTrue(blockchain.getTransactionPool().getPendingTransactions().isEmpty());
    manager.mineBlock(blockchain, minerClient, minerServer);
    Assert.assertTrue(blockchain.getTransactionPool().getPendingTransactions().isEmpty());
}

Example 50 with Blockchain

use of org.ethereum.core.Blockchain in project rskj by rsksmart.

the class MinerManagerTest method mineBlockUsingTimeTravel.

@Test
public void mineBlockUsingTimeTravel() {
    World world = new World();
    Blockchain blockchain = world.getBlockChain();
    Assert.assertEquals(0, blockchain.getBestBlock().getNumber());
    MinerManager manager = new MinerManager();
    MinerServerImpl minerServer = getMinerServer(blockchain);
    MinerClientImpl minerClient = getMinerClient(minerServer);
    long currentTime = minerServer.getCurrentTimeInSeconds();
    minerServer.increaseTime(10);
    manager.mineBlock(blockchain, minerClient, minerServer);
    Block block = blockchain.getBestBlock();
    Assert.assertEquals(1, block.getNumber());
    Assert.assertTrue(currentTime + 10 <= block.getTimestamp());
    Assert.assertTrue(currentTime + 11 > block.getTimestamp());
}