openethereum/json/src/spec/genesis.rs

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
//! Spec genesis deserialization.
use uint::Uint;
use hash::{Address, H256};
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use bytes::Bytes;
use spec::Seal;
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/// Spec genesis.
#[derive(Debug, PartialEq, Deserialize)]
pub struct Genesis {
/// Seal.
pub seal: Seal,
/// Difficulty.
pub difficulty: Uint,
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/// Block author, defaults to 0.
pub author: Option<Address>,
/// Block timestamp, defaults to 0.
pub timestamp: Option<Uint>,
/// Parent hash, defaults to 0.
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#[serde(rename="parentHash")]
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pub parent_hash: Option<H256>,
/// Gas limit.
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#[serde(rename="gasLimit")]
pub gas_limit: Uint,
/// Transactions root.
#[serde(rename="transactionsRoot")]
pub transactions_root: Option<H256>,
/// Receipts root.
#[serde(rename="receiptsRoot")]
pub receipts_root: Option<H256>,
/// State root.
#[serde(rename="stateRoot")]
pub state_root: Option<H256>,
/// Gas used.
#[serde(rename="gasUsed")]
pub gas_used: Option<Uint>,
/// Extra data.
#[serde(rename="extraData")]
pub extra_data: Option<Bytes>,
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}
#[cfg(test)]
mod tests {
use serde_json;
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use bytes::Bytes;
use uint::Uint;
use bigint::prelude::{U256, H160, H64 as Eth64, H256 as Eth256};
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use hash::{H64, H256, Address};
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use spec::genesis::Genesis;
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use spec::{Ethereum, Seal};
use std::str::FromStr;
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#[test]
fn genesis_deserialization() {
let s = r#"{
"nonce": "0x0000000000000042",
"difficulty": "0x400000000",
"seal": {
"ethereum": {
"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"nonce": "0x00006d6f7264656e"
}
},
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"author": "0x1000000000000000000000000000000000000001",
"timestamp": "0x07",
"parentHash": "0x9000000000000000000000000000000000000000000000000000000000000000",
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"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
"gasLimit": "0x1388",
"stateRoot": "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544"
}"#;
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let deserialized: Genesis = serde_json::from_str(s).unwrap();
assert_eq!(deserialized, Genesis {
seal: Seal::Ethereum(Ethereum {
nonce: H64(Eth64::from("0x00006d6f7264656e")),
mix_hash: H256(Eth256::from("0x0000000000000000000000000000000000000000000000000000000000000000"))
}),
difficulty: Uint(U256::from(0x400000000u64)),
author: Some(Address(H160::from("0x1000000000000000000000000000000000000001"))),
timestamp: Some(Uint(U256::from(0x07))),
parent_hash: Some(H256(Eth256::from("0x9000000000000000000000000000000000000000000000000000000000000000"))),
gas_limit: Uint(U256::from(0x1388)),
transactions_root: None,
receipts_root: None,
state_root: Some(H256(Eth256::from("0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544"))),
gas_used: None,
extra_data: Some(Bytes::from_str("0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa").unwrap()),
});
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}
}