Files
lighthouse/slasher/tests/wrap_around.rs
Michael Sproul 5828ff1204 Implement slasher (#1567)
This is an implementation of a slasher that lives inside the BN and can be enabled via `lighthouse bn --slasher`.

Features included in this PR:

- [x] Detection of attester slashing conditions (double votes, surrounds existing, surrounded by existing)
- [x] Integration into Lighthouse's attestation verification flow
- [x] Detection of proposer slashing conditions
- [x] Extraction of attestations from blocks as they are verified
- [x] Compression of chunks
- [x] Configurable history length
- [x] Pruning of old attestations and blocks
- [x] More tests

Future work:

* Focus on a slice of history separate from the most recent N epochs (e.g. epochs `current - K` to `current - M`)
* Run out-of-process
* Ingest attestations from the chain without a resync

Design notes are here https://hackmd.io/@sproul/HJSEklmPL
2020-11-23 03:43:22 +00:00

40 lines
1.2 KiB
Rust

use slasher::{
test_utils::{indexed_att, logger},
Config, Slasher,
};
use tempdir::TempDir;
use types::Epoch;
#[test]
fn attestation_pruning_empty_wrap_around() {
let tempdir = TempDir::new("slasher").unwrap();
let mut config = Config::new(tempdir.path().into());
config.validator_chunk_size = 1;
config.chunk_size = 16;
config.history_length = 16;
let slasher = Slasher::open(config.clone(), logger()).unwrap();
let v = vec![0];
let history_length = config.history_length as u64;
let mut current_epoch = Epoch::new(history_length - 1);
slasher.accept_attestation(indexed_att(v.clone(), 0, history_length - 1, 0));
slasher.process_queued(current_epoch).unwrap();
slasher.prune_database(current_epoch).unwrap();
// Delete the previous attestation
current_epoch = Epoch::new(2 * history_length + 2);
slasher.prune_database(current_epoch).unwrap();
// Add an attestation that would be surrounded with the modulo considered
slasher.accept_attestation(indexed_att(
v.clone(),
2 * history_length - 3,
2 * history_length - 2,
1,
));
slasher.process_queued(current_epoch).unwrap();
}