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

Example 41 with Blockchain

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

the class BlockchainTest method addFirstBlock.

@Test
public void addFirstBlock() {
    Blockchain blockchain = createBlockchain();
    Block block = new BlockGenerator().createChildBlock(blockchain.getBestBlock());
    blockchain.tryToConnect(block);
    Assert.assertEquals(blockchain.getBestBlock(), block);
}

Example 42 with Blockchain

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

the class BlockchainTest method connectOneChainThenConnectAnotherChain.

@Test
public void connectOneChainThenConnectAnotherChain() {
    Blockchain blockchain = createBlockchain();
    final int height = 200;
    final long chain1Diff = 2;
    final long chain2Diff = 1;
    BlockGenerator blockGenerator = new BlockGenerator();
    List<Block> chain1 = blockGenerator.getBlockChain(blockchain.getBestBlock(), height, chain1Diff);
    List<Block> chain2 = blockGenerator.getBlockChain(blockchain.getBestBlock(), height, chain2Diff);
    for (Block b : chain1) Assert.assertEquals(ImportResult.IMPORTED_BEST, blockchain.tryToConnect(b));
    for (Block b : chain2) Assert.assertEquals(ImportResult.IMPORTED_NOT_BEST, blockchain.tryToConnect(b));
    Block newblock = blockGenerator.createChildBlock(chain2.get(chain2.size() - 1), 0, 2 * height * chain2Diff);
    Assert.assertEquals(ImportResult.IMPORTED_BEST, blockchain.tryToConnect(newblock));
    Assert.assertEquals(blockchain.getBestBlock(), newblock);
    Assert.assertEquals(chain2.size() + 1, newblock.getNumber());
}

Example 43 with Blockchain

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

the class BlockchainTest method childBlock.

@Test
public void childBlock() {
    Blockchain blockchain = createBlockchain();
    Block block = new BlockGenerator().createChildBlock(blockchain.getBestBlock());
    Assert.assertNotNull(block);
    Assert.assertEquals(1, block.getNumber());
    Assert.assertEquals(blockchain.getBestBlock().getHash(), block.getParentHash());
}

Example 44 with Blockchain

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

the class BlockchainTest method addTwoBlocks.

@Test
public void addTwoBlocks() {
    Blockchain blockchain = createBlockchain();
    BlockGenerator blockGenerator = new BlockGenerator();
    Block block1 = blockGenerator.createChildBlock(blockchain.getBestBlock());
    Block block2 = blockGenerator.createChildBlock(block1);
    blockchain.tryToConnect(block1);
    blockchain.tryToConnect(block2);
    Assert.assertEquals(blockchain.getBestBlock(), block2);
    Assert.assertEquals(2, block2.getNumber());
}

Example 45 with Blockchain

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

the class BlockchainTest method tryToConnectWithFork.

@Test
public void tryToConnectWithFork() {
    Blockchain blockchain = createBlockchain();
    BlockGenerator blockGenerator = new BlockGenerator();
    Block block1 = blockGenerator.createChildBlock(blockchain.getBestBlock(), 0, 1);
    Block block1b = blockGenerator.createChildBlock(blockchain.getBestBlock(), 0, 2);
    Block block2 = blockGenerator.createChildBlock(block1, 0, 3);
    Block block2b = blockGenerator.createChildBlock(block1b, 0, 1);
    Block block3b = blockGenerator.createChildBlock(block2b, 0, 4);
    Assert.assertEquals(ImportResult.NO_PARENT, blockchain.tryToConnect(block2));
    Assert.assertEquals(ImportResult.IMPORTED_BEST, blockchain.tryToConnect(block1));
    Assert.assertEquals(ImportResult.IMPORTED_BEST, blockchain.tryToConnect(block2));
    Assert.assertEquals(ImportResult.IMPORTED_NOT_BEST, blockchain.tryToConnect(block1b));
    Assert.assertEquals(ImportResult.EXIST, blockchain.tryToConnect(block1));
    Assert.assertEquals(ImportResult.IMPORTED_NOT_BEST, blockchain.tryToConnect(block2b));
    Assert.assertEquals(ImportResult.IMPORTED_BEST, blockchain.tryToConnect(block3b));
    Assert.assertEquals(blockchain.getBestBlock(), block3b);
    Assert.assertEquals(3, block3b.getNumber());
}