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introduce remote-tests for pallet-bags-list (#10036)

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* make a few primitives in bags-list public

* push new stuff

* update

* update log target

* bring remote tests here

* revert pub

* Update frame/bags-list/remote-tests/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* some rev commnets

* Fix

* cleanup

* Update Cargo.lock

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
Kian Paimani
2021-11-01 14:41:38 +00:00
committed by GitHub
parent 7f1bff9462
commit bba9cfd8a2
11 changed files with 420 additions and 15 deletions
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substrate/frame/bags-list/remote-tests/src/migration.rs
+65
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// Copyright 2021 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot 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.
// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! Test to check the migration of the voter bag.
use crate::{RuntimeT, LOG_TARGET};
use frame_election_provider_support::SortedListProvider;
use frame_support::traits::PalletInfoAccess;
use pallet_staking::Nominators;
use remote_externalities::{Builder, Mode, OnlineConfig};
use sp_runtime::traits::Block as BlockT;
/// Test voter bags migration. `currency_unit` is the number of planks per the the runtimes `UNITS`
/// (i.e. number of decimal places per DOT, KSM etc)
pub async fn execute<Runtime: RuntimeT, Block: BlockT>(
currency_unit: u64,
currency_name: &'static str,
ws_url: String,
) {
let mut ext = Builder::<Block>::new()
.mode(Mode::Online(OnlineConfig {
transport: ws_url.to_string().into(),
pallets: vec![pallet_staking::Pallet::<Runtime>::name().to_string()],
at: None,
state_snapshot: None,
}))
.build()
.await
.unwrap();
ext.execute_with(|| {
// get the nominator & validator count prior to migrating; these should be invariant.
let pre_migrate_nominator_count = <Nominators<Runtime>>::iter().count() as u32;
log::info!(target: LOG_TARGET, "Nominator count: {}", pre_migrate_nominator_count);
// run the actual migration,
let moved = <Runtime as pallet_staking::Config>::SortedListProvider::regenerate(
pallet_staking::Nominators::<Runtime>::iter().map(|(n, _)| n),
pallet_staking::Pallet::<Runtime>::weight_of_fn(),
);
log::info!(target: LOG_TARGET, "Moved {} nominators", moved);
let voter_list_len =
<Runtime as pallet_staking::Config>::SortedListProvider::iter().count() as u32;
let voter_list_count = <Runtime as pallet_staking::Config>::SortedListProvider::count();
// and confirm it is equal to the length of the `VoterList`.
assert_eq!(pre_migrate_nominator_count, voter_list_len);
assert_eq!(pre_migrate_nominator_count, voter_list_count);
crate::display_and_check_bags::<Runtime>(currency_unit, currency_name);
});
}