mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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Guillaume Thiolliere
9756615d5b
* fix bags list * improve doc * doc * inner doc * fix test * Update docs in frame/election-provider-support/src/lib.rs * fix staking impl * prepend unsafe to clear and regenerate * fix test Co-authored-by: Keith Yeung <kungfukeith11@gmail.com> Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
66 lines
2.6 KiB
Rust
66 lines
2.6 KiB
Rust
// Copyright 2021 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 check the migration of the voter bag.
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use crate::{RuntimeT, LOG_TARGET};
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use frame_election_provider_support::SortedListProvider;
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use frame_support::traits::PalletInfoAccess;
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use pallet_staking::Nominators;
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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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/// Test voter bags migration. `currency_unit` is the number of planks per the the runtimes `UNITS`
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/// (i.e. number of decimal places per DOT, KSM etc)
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pub async fn execute<Runtime: RuntimeT, Block: BlockT + DeserializeOwned>(
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currency_unit: u64,
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currency_name: &'static str,
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ws_url: String,
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) {
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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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pallets: vec![pallet_staking::Pallet::<Runtime>::name().to_string()],
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at: None,
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state_snapshot: None,
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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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// get the nominator & validator count prior to migrating; these should be invariant.
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let pre_migrate_nominator_count = <Nominators<Runtime>>::iter().count() as u32;
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log::info!(target: LOG_TARGET, "Nominator count: {}", pre_migrate_nominator_count);
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// run the actual migration,
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let moved = <Runtime as pallet_staking::Config>::SortedListProvider::unsafe_regenerate(
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pallet_staking::Nominators::<Runtime>::iter().map(|(n, _)| n),
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pallet_staking::Pallet::<Runtime>::weight_of_fn(),
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);
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log::info!(target: LOG_TARGET, "Moved {} nominators", moved);
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let voter_list_len =
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<Runtime as pallet_staking::Config>::SortedListProvider::iter().count() as u32;
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let voter_list_count = <Runtime as pallet_staking::Config>::SortedListProvider::count();
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// and confirm it is equal to the length of the `VoterList`.
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assert_eq!(pre_migrate_nominator_count, voter_list_len);
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assert_eq!(pre_migrate_nominator_count, voter_list_count);
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crate::display_and_check_bags::<Runtime>(currency_unit, currency_name);
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});
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}
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