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Parse uint256 as decimal string (#2957)

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## Issue Addressed

N/A

## Proposed Changes

https://github.com/sigp/lighthouse/pull/2940 introduced a bug where we parsed the uint256 terminal total difficulty as a hex string instead of a decimal string. Fixes the bug and adds tests.
This commit is contained in:
Pawan Dhananjay 2022-01-30 23:22:05 +00:00
parent e961ff60b4
commit 9ff2160198
1 changed files with 79 additions and 4 deletions
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83
consensus/types/src/chain_spec.rs
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@ -843,10 +843,16 @@ fn default_bellatrix_fork_epoch() -> Option<MaybeQuoted<Epoch>> {
None
}
fn default_terminal_total_difficulty() -> Uint256 {
"115792089237316195423570985008687907853269984665640564039457584007913129638912"
.parse()
.unwrap()
/// Placeholder value: 2^256-2^10 (115792089237316195423570985008687907853269984665640564039457584007913129638912).
///
/// Taken from https://github.com/ethereum/consensus-specs/blob/d5e4828aecafaf1c57ef67a5f23c4ae7b08c5137/configs/mainnet.yaml#L15-L16
const fn default_terminal_total_difficulty() -> Uint256 {
ethereum_types::U256([
18446744073709550592,
18446744073709551615,
18446744073709551615,
18446744073709551615,
])
}
fn default_terminal_block_hash() -> Hash256 {
@ -1194,4 +1200,73 @@ mod yaml_tests {
.expect("should have applied spec");
assert_eq!(new_spec, ChainSpec::minimal());
}
#[test]
fn test_defaults() {
// Spec yaml string. Fields that serialize/deserialize with a default value are commented out.
let spec = r#"
PRESET_BASE: 'mainnet'
#TERMINAL_TOTAL_DIFFICULTY: 115792089237316195423570985008687907853269984665640564039457584007913129638911
#TERMINAL_BLOCK_HASH: 0x0000000000000000000000000000000000000000000000000000000000000001
#TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: 18446744073709551614
MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: 16384
MIN_GENESIS_TIME: 1606824000
GENESIS_FORK_VERSION: 0x00000000
GENESIS_DELAY: 604800
ALTAIR_FORK_VERSION: 0x01000000
ALTAIR_FORK_EPOCH: 74240
#BELLATRIX_FORK_VERSION: 0x02000000
#BELLATRIX_FORK_EPOCH: 18446744073709551614
SHARDING_FORK_VERSION: 0x03000000
SHARDING_FORK_EPOCH: 18446744073709551615
SECONDS_PER_SLOT: 12
SECONDS_PER_ETH1_BLOCK: 14
MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256
SHARD_COMMITTEE_PERIOD: 256
ETH1_FOLLOW_DISTANCE: 2048
INACTIVITY_SCORE_BIAS: 4
INACTIVITY_SCORE_RECOVERY_RATE: 16
EJECTION_BALANCE: 16000000000
MIN_PER_EPOCH_CHURN_LIMIT: 4
CHURN_LIMIT_QUOTIENT: 65536
PROPOSER_SCORE_BOOST: 70
DEPOSIT_CHAIN_ID: 1
DEPOSIT_NETWORK_ID: 1
DEPOSIT_CONTRACT_ADDRESS: 0x00000000219ab540356cBB839Cbe05303d7705Fa
"#;
let chain_spec: Config = serde_yaml::from_str(spec).unwrap();
assert_eq!(
chain_spec.terminal_total_difficulty,
default_terminal_total_difficulty()
);
assert_eq!(
chain_spec.terminal_block_hash,
default_terminal_block_hash()
);
assert_eq!(
chain_spec.terminal_block_hash_activation_epoch,
default_terminal_block_hash_activation_epoch()
);
assert_eq!(
chain_spec.bellatrix_fork_epoch,
default_bellatrix_fork_epoch()
);
assert_eq!(
chain_spec.bellatrix_fork_version,
default_bellatrix_fork_version()
);
}
#[test]
fn test_total_terminal_difficulty() {
assert_eq!(
Ok(default_terminal_total_difficulty()),
Uint256::from_dec_str(
"115792089237316195423570985008687907853269984665640564039457584007913129638912"
)
);
}
}