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Mark future blocks as temporarily invalid.

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This commit is contained in:
Tomasz Drwięga
2017-12-21 15:01:05 +01:00
parent d5b81ead71
commit 7d4e4c7a62
5 changed files with 94 additions and 42 deletions
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18
ethcore/src/engines/validator_set/contract.rs
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@@ -171,22 +171,36 @@ mod tests {
// Make sure reporting can be done.
client.miner().set_gas_floor_target(1_000_000.into());
client.miner().set_engine_signer(v1, "".into()).unwrap();
// Check a block that is a bit in future, reject it but don't report the validator.
let mut header = Header::default();
let seal = vec![encode(&5u8).into_vec(), encode(&(&H520::default() as &[u8])).into_vec()];
header.set_seal(seal);
header.set_author(v1);
header.set_number(2);
header.set_parent_hash(client.chain_info().best_block_hash);
assert!(client.engine().verify_block_external(&header).is_err());
client.engine().step();
assert_eq!(client.chain_info().best_block_number, 0);
// Now create one that is more in future. That one should be rejected and validator should be reported.
let mut header = Header::default();
let seal = vec![encode(&8u8).into_vec(), encode(&(&H520::default() as &[u8])).into_vec()];
header.set_seal(seal);
header.set_author(v1);
header.set_number(2);
header.set_parent_hash(client.chain_info().best_block_hash);
// `reportBenign` when the designated proposer releases block from the future (bad clock).
assert!(client.engine().verify_block_external(&header).is_err());
// Seal a block.
client.engine().step();
assert_eq!(client.chain_info().best_block_number, 1);
// Check if the unresponsive validator is `disliked`.
assert_eq!(client.call_contract(BlockId::Latest, validator_contract, "d8f2e0bf".from_hex().unwrap()).unwrap().to_hex(), "0000000000000000000000007d577a597b2742b498cb5cf0c26cdcd726d39e6e");
assert_eq!(
client.call_contract(BlockId::Latest, validator_contract, "d8f2e0bf".from_hex().unwrap()).unwrap().to_hex(),
"0000000000000000000000007d577a597b2742b498cb5cf0c26cdcd726d39e6e"
);
// Simulate a misbehaving validator by handling a double proposal.
let header = client.best_block_header().decode();
assert!(client.engine().verify_block_family(&header, &header).is_err());