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

// Tetsy Vapory 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.

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

//! Null engine params deserialization.

use crate::uint::Uint;
use serde::Deserialize;

/// Authority params deserialization.
#[derive(Debug, PartialEq, Deserialize)]
#[serde(deny_unknown_fields)]
#[serde(rename_all = "camelCase")]
pub struct NullEngineParams {
	/// Block reward.
	pub block_reward: Option<Uint>,
	/// Immediate finalization.
	pub immediate_finalization: Option<bool>
}

/// Null engine descriptor
#[derive(Debug, PartialEq, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct NullEngine {
	/// Vapash params.
	pub params: NullEngineParams,
}

#[cfg(test)]
mod tests {
	use super::{NullEngine, Uint};
	use vapory_types::U256;

	#[test]
	fn null_engine_deserialization() {
		let s = r#"{
			"params": {
				"blockReward": "0x0d"
			}
		}"#;

		let deserialized: NullEngine = serde_json::from_str(s).unwrap();
		assert_eq!(deserialized.params.block_reward, Some(Uint(U256::from(0x0d))));
	}
}