/** Test that if the block height is missing from coinbase of a version 2 block, it's rejected. */
@Test
public void missingHeightFromCoinbase() throws Exception {
final int UNDOABLE_BLOCKS_STORED = params.getMajorityEnforceBlockUpgrade() + 1;
store = createStore(params, UNDOABLE_BLOCKS_STORED);
try {
chain = new FullPrunedBlockChain(params, store);
ECKey outKey = new ECKey();
int height = 1;
Block chainHead = params.getGenesisBlock();
// Build some blocks on genesis block to create a spendable output.
// Put in just enough v1 blocks to stop the v2 blocks from forming a majority
for (height = 1;
height <= (params.getMajorityWindow() - params.getMajorityEnforceBlockUpgrade());
height++) {
chainHead =
chainHead.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height);
chain.add(chainHead);
}
// Fill the rest of the window in with v2 blocks
for (; height < params.getMajorityWindow(); height++) {
chainHead =
chainHead.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_BIP34, outKey.getPubKey(), height);
chain.add(chainHead);
}
// Throw a broken v2 block in before we have a supermajority to enable
// enforcement, which should validate as-is
chainHead =
chainHead.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_BIP34, outKey.getPubKey(), height * 2);
chain.add(chainHead);
height++;
// Trying to add a broken v2 block should now result in rejection as
// we have a v2 supermajority
thrown.expect(VerificationException.CoinbaseHeightMismatch.class);
chainHead =
chainHead.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_BIP34, outKey.getPubKey(), height * 2);
chain.add(chainHead);
} catch (final VerificationException ex) {
throw (Exception) ex.getCause();
} finally {
try {
store.close();
} catch (Exception e) {
// Catch and drop any exception so a break mid-test doesn't result
// in a new exception being thrown and the original lost
}
}
}
