81 lines
2.8 KiB
Rust
81 lines
2.8 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Validator set deserialization.
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use std::collections::BTreeMap;
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use uint::Uint;
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use hash::Address;
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/// Different ways of specifying validators.
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#[derive(Debug, PartialEq, Deserialize)]
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pub enum ValidatorSet {
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/// A simple list of authorities.
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#[serde(rename="list")]
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List(Vec<Address>),
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/// Address of a contract that indicates the list of authorities.
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#[serde(rename="safeContract")]
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SafeContract(Address),
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/// Address of a contract that indicates the list of authorities and enables reporting of theor misbehaviour using transactions.
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#[serde(rename="contract")]
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Contract(Address),
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/// A map of starting blocks for each validator set.
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#[serde(rename="multi")]
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Multi(BTreeMap<Uint, ValidatorSet>),
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}
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#[cfg(test)]
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mod tests {
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use serde_json;
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use uint::Uint;
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use bigint::prelude::{H160, U256};
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use hash::Address;
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use spec::validator_set::ValidatorSet;
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#[test]
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fn validator_set_deserialization() {
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let s = r#"[{
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"list": ["0xc6d9d2cd449a754c494264e1809c50e34d64562b"]
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}, {
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"safeContract": "0xc6d9d2cd449a754c494264e1809c50e34d64562b"
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}, {
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"contract": "0xc6d9d2cd449a754c494264e1809c50e34d64562b"
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}, {
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"multi": {
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"0": { "list": ["0xc6d9d2cd449a754c494264e1809c50e34d64562b"] },
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"10": { "list": ["0xd6d9d2cd449a754c494264e1809c50e34d64562b"] },
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"20": { "contract": "0xc6d9d2cd449a754c494264e1809c50e34d64562b" }
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}
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}]"#;
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let deserialized: Vec<ValidatorSet> = serde_json::from_str(s).unwrap();
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assert_eq!(deserialized.len(), 4);
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assert_eq!(deserialized[0], ValidatorSet::List(vec![Address(H160::from("0xc6d9d2cd449a754c494264e1809c50e34d64562b"))]));
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assert_eq!(deserialized[1], ValidatorSet::SafeContract(Address(H160::from("0xc6d9d2cd449a754c494264e1809c50e34d64562b"))));
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assert_eq!(deserialized[2], ValidatorSet::Contract(Address(H160::from("0xc6d9d2cd449a754c494264e1809c50e34d64562b"))));
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match deserialized[3] {
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ValidatorSet::Multi(ref map) => {
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assert_eq!(map.len(), 3);
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assert!(map.contains_key(&Uint(U256::from(0))));
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assert!(map.contains_key(&Uint(U256::from(10))));
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assert!(map.contains_key(&Uint(U256::from(20))));
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},
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_ => assert!(false),
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}
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}
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}
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