openethereum/crates/ethjson/src/blockchain/header.rs

// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.

// OpenEthereum 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.

// OpenEthereum 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 OpenEthereum.  If not, see <http://www.gnu.org/licenses/>.

//! Blockchain test header deserializer.

use crate::{
    bytes::Bytes,
    hash::{Address, Bloom, H256, H64},
    uint::Uint,
};

/// Blockchain test header deserializer.
#[derive(Debug, PartialEq, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Header {
    /// Blocks bloom.
    pub bloom: Bloom,
    /// Blocks author.
    #[serde(rename = "coinbase")]
    pub author: Address,
    /// Difficulty.
    pub difficulty: Uint,
    /// Extra data.
    pub extra_data: Bytes,
    /// Gas limit.
    pub gas_limit: Uint,
    /// Gas used.
    pub gas_used: Uint,
    /// Hash.
    pub hash: H256,
    /// Mix hash.
    pub mix_hash: H256,
    /// Seal nonce.
    pub nonce: H64,
    /// Block number.
    pub number: Uint,
    /// Parent hash.
    pub parent_hash: H256,
    /// Receipt root.
    #[serde(rename = "receiptTrie")]
    pub receipts_root: H256,
    /// State root.
    pub state_root: H256,
    /// Timestamp.
    pub timestamp: Uint,
    /// Transactions root.
    #[serde(rename = "transactionsTrie")]
    pub transactions_root: H256,
    /// Uncles hash.
    #[serde(rename = "uncleHash")]
    pub uncles_hash: H256,
    /// Base fee
    pub base_fee_per_gas: Option<Uint>,
}

#[cfg(test)]
mod tests {
    use crate::blockchain::header::Header;
    use serde_json;

    #[test]
    fn header_deserialization() {
        let s = r#"{
			"bloom" : "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
			"coinbase" : "8888f1f195afa192cfee860698584c030f4c9db1",
			"difficulty" : "0x020000",
			"extraData" : "0x",
			"gasLimit" : "0x2fefba",
			"gasUsed" : "0x00",
			"hash" : "65ebf1b97fb89b14680267e0723d69267ec4bf9a96d4a60ffcb356ae0e81c18f",
			"mixHash" : "13735ab4156c9b36327224d92e1692fab8fc362f8e0f868c94d421848ef7cd06",
			"nonce" : "931dcc53e5edc514",
			"number" : "0x01",
			"parentHash" : "5a39ed1020c04d4d84539975b893a4e7c53eab6c2965db8bc3468093a31bc5ae",
			"receiptTrie" : "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
			"stateRoot" : "c5c83ff43741f573a0c9b31d0e56fdd745f4e37d193c4e78544f302777aafcf3",
			"timestamp" : "0x56850b7b",
			"transactionsTrie" : "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
			"uncleHash" : "1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"
		}"#;
        let _deserialized: Header = serde_json::from_str(s).unwrap();
        // TODO: validate all fields
    }
}