mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
93 lines
3.2 KiB
Rust
93 lines
3.2 KiB
Rust
// Copyright Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot 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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// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Test to execute the snapshot using the voter bag.
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use frame_election_provider_support::SortedListProvider;
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use frame_support::traits::PalletInfoAccess;
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use remote_externalities::{Builder, Mode, OnlineConfig};
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use sp_runtime::{traits::Block as BlockT, DeserializeOwned};
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/// Execute create a snapshot from pallet-staking.
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pub async fn execute<Runtime, Block>(voter_limit: Option<usize>, currency_unit: u64, ws_url: String)
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where
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Runtime: crate::RuntimeT<pallet_bags_list::Instance1>,
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Block: BlockT + DeserializeOwned,
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Block::Header: DeserializeOwned,
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{
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use frame_support::storage::generator::StorageMap;
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let mut ext = Builder::<Block>::new()
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.mode(Mode::Online(OnlineConfig {
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transport: ws_url.to_string().into(),
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// NOTE: we don't scrape pallet-staking, this kinda ensures that the source of the data
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// is bags-list.
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pallets: vec![pallet_bags_list::Pallet::<Runtime, pallet_bags_list::Instance1>::name()
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.to_string()],
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at: None,
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hashed_prefixes: vec![
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<pallet_staking::Bonded<Runtime>>::prefix_hash(),
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<pallet_staking::Ledger<Runtime>>::prefix_hash(),
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<pallet_staking::Validators<Runtime>>::map_storage_final_prefix(),
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<pallet_staking::Nominators<Runtime>>::map_storage_final_prefix(),
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],
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hashed_keys: vec![
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<pallet_staking::Validators<Runtime>>::counter_storage_final_key().to_vec(),
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<pallet_staking::Nominators<Runtime>>::counter_storage_final_key().to_vec(),
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],
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..Default::default()
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}))
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.build()
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.await
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.unwrap();
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ext.execute_with(|| {
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use frame_election_provider_support::ElectionDataProvider;
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log::info!(
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target: crate::LOG_TARGET,
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"{} nodes in bags list.",
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<Runtime as pallet_staking::Config>::VoterList::count(),
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);
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let voters =
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<pallet_staking::Pallet<Runtime> as ElectionDataProvider>::electing_voters(voter_limit)
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.unwrap();
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let mut voters_nominator_only = voters
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.iter()
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.filter(|(v, _, _)| pallet_staking::Nominators::<Runtime>::contains_key(v))
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.cloned()
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.collect::<Vec<_>>();
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voters_nominator_only.sort_by_key(|(_, w, _)| *w);
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let currency_unit = currency_unit as f64;
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let min_voter = voters_nominator_only
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.first()
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.map(|(x, y, _)| (x.clone(), *y as f64 / currency_unit));
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let max_voter = voters_nominator_only
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.last()
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.map(|(x, y, _)| (x.clone(), *y as f64 / currency_unit));
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log::info!(
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target: crate::LOG_TARGET,
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"a snapshot with limit {:?} has been created, {} voters are taken. min nominator: {:?}, max: {:?}",
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voter_limit,
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voters.len(),
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min_voter,
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max_voter
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);
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});
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}
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