lighthouse/testing/ef_tests/src/cases/fork.rs
2022-11-22 20:13:51 -05:00

70 lines
2.5 KiB
Rust

use super::*;
use crate::case_result::compare_beacon_state_results_without_caches;
use crate::cases::common::previous_fork;
use crate::decode::{ssz_decode_state, yaml_decode_file};
use serde_derive::Deserialize;
use state_processing::upgrade::{upgrade_to_altair, upgrade_to_bellatrix, upgrade_to_capella, upgrade_to_eip4844};
use types::{BeaconState, ForkName};
#[derive(Debug, Clone, Default, Deserialize)]
pub struct Metadata {
pub fork: String,
}
impl Metadata {
fn fork_name(&self) -> ForkName {
self.fork.parse().unwrap()
}
}
#[derive(Debug)]
pub struct ForkTest<E: EthSpec> {
pub metadata: Metadata,
pub pre: BeaconState<E>,
pub post: BeaconState<E>,
}
impl<E: EthSpec> LoadCase for ForkTest<E> {
fn load_from_dir(path: &Path, fork_name: ForkName) -> Result<Self, Error> {
let metadata: Metadata = yaml_decode_file(&path.join("meta.yaml"))?;
assert_eq!(metadata.fork_name(), fork_name);
// Decode pre-state with previous fork.
let pre_spec = &previous_fork(fork_name).make_genesis_spec(E::default_spec());
let pre = ssz_decode_state(&path.join("pre.ssz_snappy"), pre_spec)?;
// Decode post-state with target fork.
let post_spec = &fork_name.make_genesis_spec(E::default_spec());
let post = ssz_decode_state(&path.join("post.ssz_snappy"), post_spec)?;
Ok(Self {
metadata,
pre,
post,
})
}
}
impl<E: EthSpec> Case for ForkTest<E> {
fn is_enabled_for_fork(fork_name: ForkName) -> bool {
// Upgrades exist targeting all forks except phase0/base.
// Fork tests also need BLS.
cfg!(not(feature = "fake_crypto")) && fork_name != ForkName::Base
}
fn result(&self, _case_index: usize, fork_name: ForkName) -> Result<(), Error> {
let mut result_state = self.pre.clone();
let mut expected = Some(self.post.clone());
let spec = &E::default_spec();
let mut result = match fork_name {
ForkName::Base => panic!("phase0 not supported"),
ForkName::Altair => upgrade_to_altair(&mut result_state, spec).map(|_| result_state),
ForkName::Merge => upgrade_to_bellatrix(&mut result_state, spec).map(|_| result_state),
ForkName::Capella => upgrade_to_capella(&mut result_state, spec).map(|_| result_state),
ForkName::Eip4844 => upgrade_to_eip4844(&mut result_state, spec).map(|_| result_state), };
compare_beacon_state_results_without_caches(&mut result, &mut expected)
}
}