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use uint::{self, Uint};
use hash::Address;
#[derive(Clone, Debug, PartialEq, Deserialize)]
pub struct EthashParams {
#[serde(rename="minimumDifficulty")]
pub minimum_difficulty: Uint,
#[serde(rename="difficultyBoundDivisor")]
#[serde(deserialize_with="uint::validate_non_zero")]
pub difficulty_bound_divisor: Uint,
#[serde(rename="difficultyIncrementDivisor")]
#[serde(default, deserialize_with="uint::validate_optional_non_zero")]
pub difficulty_increment_divisor: Option<Uint>,
#[serde(rename="metropolisDifficultyIncrementDivisor")]
#[serde(default, deserialize_with="uint::validate_optional_non_zero")]
pub metropolis_difficulty_increment_divisor: Option<Uint>,
#[serde(rename="durationLimit")]
pub duration_limit: Option<Uint>,
#[serde(rename="homesteadTransition")]
pub homestead_transition: Option<Uint>,
#[serde(rename="blockReward")]
pub block_reward: Option<Uint>,
#[serde(rename="daoHardforkTransition")]
pub dao_hardfork_transition: Option<Uint>,
#[serde(rename="daoHardforkBeneficiary")]
pub dao_hardfork_beneficiary: Option<Address>,
#[serde(rename="daoHardforkAccounts")]
pub dao_hardfork_accounts: Option<Vec<Address>>,
#[serde(rename="difficultyHardforkTransition")]
pub difficulty_hardfork_transition: Option<Uint>,
#[serde(rename="difficultyHardforkBoundDivisor")]
#[serde(default, deserialize_with="uint::validate_optional_non_zero")]
pub difficulty_hardfork_bound_divisor: Option<Uint>,
#[serde(rename="bombDefuseTransition")]
pub bomb_defuse_transition: Option<Uint>,
#[serde(rename="eip100bTransition")]
pub eip100b_transition: Option<Uint>,
#[serde(rename="ecip1010PauseTransition")]
pub ecip1010_pause_transition: Option<Uint>,
#[serde(rename="ecip1010ContinueTransition")]
pub ecip1010_continue_transition: Option<Uint>,
#[serde(rename="ecip1017EraRounds")]
pub ecip1017_era_rounds: Option<Uint>,
#[serde(rename="mcip3Transition")]
pub mcip3_transition: Option<Uint>,
#[serde(rename="mcip3MinerReward")]
pub mcip3_miner_reward: Option<Uint>,
#[serde(rename="mcip3UbiReward")]
pub mcip3_ubi_reward: Option<Uint>,
#[serde(rename="mcip3UbiContract")]
pub mcip3_ubi_contract: Option<Address>,
#[serde(rename="mcip3DevReward")]
pub mcip3_dev_reward: Option<Uint>,
#[serde(rename="mcip3DevContract")]
pub mcip3_dev_contract: Option<Address>,
#[serde(rename="eip649Transition")]
pub eip649_transition: Option<Uint>,
#[serde(rename="eip649Delay")]
pub eip649_delay: Option<Uint>,
#[serde(rename="eip649Reward")]
pub eip649_reward: Option<Uint>,
#[serde(rename="expip2Transition")]
pub expip2_transition: Option<Uint>,
#[serde(rename="expip2DurationLimit")]
pub expip2_duration_limit: Option<Uint>,
}
#[derive(Debug, PartialEq, Deserialize)]
pub struct Ethash {
pub params: EthashParams,
}
#[cfg(test)]
mod tests {
use serde_json;
use uint::Uint;
use ethereum_types::{H160, U256};
use hash::Address;
use spec::ethash::{Ethash, EthashParams};
#[test]
fn ethash_deserialization() {
let s = r#"{
"params": {
"minimumDifficulty": "0x020000",
"difficultyBoundDivisor": "0x0800",
"durationLimit": "0x0d",
"homesteadTransition": "0x42",
"blockReward": "0x100",
"daoHardforkTransition": "0x08",
"daoHardforkBeneficiary": "0xabcabcabcabcabcabcabcabcabcabcabcabcabca",
"daoHardforkAccounts": [
"0x304a554a310c7e546dfe434669c62820b7d83490",
"0x914d1b8b43e92723e64fd0a06f5bdb8dd9b10c79",
"0xfe24cdd8648121a43a7c86d289be4dd2951ed49f",
"0x17802f43a0137c506ba92291391a8a8f207f487d",
"0xb136707642a4ea12fb4bae820f03d2562ebff487",
"0xdbe9b615a3ae8709af8b93336ce9b477e4ac0940",
"0xf14c14075d6c4ed84b86798af0956deef67365b5",
"0xca544e5c4687d109611d0f8f928b53a25af72448",
"0xaeeb8ff27288bdabc0fa5ebb731b6f409507516c",
"0xcbb9d3703e651b0d496cdefb8b92c25aeb2171f7",
"0xaccc230e8a6e5be9160b8cdf2864dd2a001c28b6",
"0x2b3455ec7fedf16e646268bf88846bd7a2319bb2",
"0x4613f3bca5c44ea06337a9e439fbc6d42e501d0a",
"0xd343b217de44030afaa275f54d31a9317c7f441e",
"0x84ef4b2357079cd7a7c69fd7a37cd0609a679106",
"0xda2fef9e4a3230988ff17df2165440f37e8b1708",
"0xf4c64518ea10f995918a454158c6b61407ea345c",
"0x7602b46df5390e432ef1c307d4f2c9ff6d65cc97",
"0xbb9bc244d798123fde783fcc1c72d3bb8c189413",
"0x807640a13483f8ac783c557fcdf27be11ea4ac7a"
],
"difficultyHardforkTransition": "0x59d9",
"difficultyHardforkBoundDivisor": "0x0200",
"bombDefuseTransition": "0x41",
"eip100bTransition": "0x42"
}
}"#;
let deserialized: Ethash = serde_json::from_str(s).unwrap();
assert_eq!(deserialized, Ethash {
params: EthashParams{
minimum_difficulty: Uint(U256::from(0x020000)),
difficulty_bound_divisor: Uint(U256::from(0x0800)),
difficulty_increment_divisor: None,
metropolis_difficulty_increment_divisor: None,
duration_limit: Some(Uint(U256::from(0x0d))),
homestead_transition: Some(Uint(U256::from(0x42))),
block_reward: Some(Uint(U256::from(0x100))),
dao_hardfork_transition: Some(Uint(U256::from(0x08))),
dao_hardfork_beneficiary: Some(Address(H160::from("0xabcabcabcabcabcabcabcabcabcabcabcabcabca"))),
dao_hardfork_accounts: Some(vec![
Address(H160::from("0x304a554a310c7e546dfe434669c62820b7d83490")),
Address(H160::from("0x914d1b8b43e92723e64fd0a06f5bdb8dd9b10c79")),
Address(H160::from("0xfe24cdd8648121a43a7c86d289be4dd2951ed49f")),
Address(H160::from("0x17802f43a0137c506ba92291391a8a8f207f487d")),
Address(H160::from("0xb136707642a4ea12fb4bae820f03d2562ebff487")),
Address(H160::from("0xdbe9b615a3ae8709af8b93336ce9b477e4ac0940")),
Address(H160::from("0xf14c14075d6c4ed84b86798af0956deef67365b5")),
Address(H160::from("0xca544e5c4687d109611d0f8f928b53a25af72448")),
Address(H160::from("0xaeeb8ff27288bdabc0fa5ebb731b6f409507516c")),
Address(H160::from("0xcbb9d3703e651b0d496cdefb8b92c25aeb2171f7")),
Address(H160::from("0xaccc230e8a6e5be9160b8cdf2864dd2a001c28b6")),
Address(H160::from("0x2b3455ec7fedf16e646268bf88846bd7a2319bb2")),
Address(H160::from("0x4613f3bca5c44ea06337a9e439fbc6d42e501d0a")),
Address(H160::from("0xd343b217de44030afaa275f54d31a9317c7f441e")),
Address(H160::from("0x84ef4b2357079cd7a7c69fd7a37cd0609a679106")),
Address(H160::from("0xda2fef9e4a3230988ff17df2165440f37e8b1708")),
Address(H160::from("0xf4c64518ea10f995918a454158c6b61407ea345c")),
Address(H160::from("0x7602b46df5390e432ef1c307d4f2c9ff6d65cc97")),
Address(H160::from("0xbb9bc244d798123fde783fcc1c72d3bb8c189413")),
Address(H160::from("0x807640a13483f8ac783c557fcdf27be11ea4ac7a")),
]),
difficulty_hardfork_transition: Some(Uint(U256::from(0x59d9))),
difficulty_hardfork_bound_divisor: Some(Uint(U256::from(0x0200))),
bomb_defuse_transition: Some(Uint(U256::from(0x41))),
eip100b_transition: Some(Uint(U256::from(0x42))),
ecip1010_pause_transition: None,
ecip1010_continue_transition: None,
ecip1017_era_rounds: None,
mcip3_transition: None,
mcip3_miner_reward: None,
mcip3_ubi_reward: None,
mcip3_ubi_contract: None,
mcip3_dev_reward: None,
mcip3_dev_contract: None,
eip649_transition: None,
eip649_delay: None,
eip649_reward: None,
expip2_transition: None,
expip2_duration_limit: None,
}
});
}
#[test]
fn ethash_deserialization_missing_optionals() {
let s = r#"{
"params": {
"difficultyBoundDivisor": "0x0800",
"minimumDifficulty": "0x020000"
}
}"#;
let deserialized: Ethash = serde_json::from_str(s).unwrap();
assert_eq!(deserialized, Ethash {
params: EthashParams {
minimum_difficulty: Uint(U256::from(0x020000)),
difficulty_bound_divisor: Uint(U256::from(0x0800)),
difficulty_increment_divisor: None,
metropolis_difficulty_increment_divisor: None,
duration_limit: None,
homestead_transition: None,
block_reward: None,
dao_hardfork_transition: None,
dao_hardfork_beneficiary: None,
dao_hardfork_accounts: None,
difficulty_hardfork_transition: None,
difficulty_hardfork_bound_divisor: None,
bomb_defuse_transition: None,
eip100b_transition: None,
ecip1010_pause_transition: None,
ecip1010_continue_transition: None,
ecip1017_era_rounds: None,
mcip3_transition: None,
mcip3_miner_reward: None,
mcip3_ubi_reward: None,
mcip3_ubi_contract: None,
mcip3_dev_reward: None,
mcip3_dev_contract: None,
eip649_transition: None,
eip649_delay: None,
eip649_reward: None,
expip2_transition: None,
expip2_duration_limit: None,
}
});
}
#[test]
#[should_panic(expected = "a non-zero value")]
fn test_zero_value_divisor() {
let s = r#"{
"params": {
"difficultyBoundDivisor": "0x0",
"minimumDifficulty": "0x020000"
}
}"#;
let _deserialized: Ethash = serde_json::from_str(s).unwrap();
}
}