`8f7419bc1620`

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pallets/collator-selection/src/benchmarking.rs8.7 KiBsource history
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617// Original license:18// Copyright (C) 2021 Parity Technologies (UK) Ltd.19// SPDX-License-Identifier: Apache-2.02021// Licensed under the Apache License, Version 2.0 (the "License");22// you may not use this file except in compliance with the License.23// You may obtain a copy of the License at24//25// 	http://www.apache.org/licenses/LICENSE-2.026//27// Unless required by applicable law or agreed to in writing, software28// distributed under the License is distributed on an "AS IS" BASIS,29// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.30// See the License for the specific language governing permissions and31// limitations under the License.3233//! Benchmarking setup for pallet-collator-selection3435use super::*;3637#[allow(unused)]38use crate::Pallet as CollatorSelection;39use frame_benchmarking::{account, benchmarks, impl_benchmark_test_suite, whitelisted_caller};40use frame_support::{41	assert_ok,42	codec::Decode,43	traits::{Currency, EnsureOrigin, Get},44};45use frame_system::{EventRecord, RawOrigin};46use pallet_authorship::EventHandler;47use pallet_session::{self as session, SessionManager};48use sp_std::prelude::*;4950pub type BalanceOf<T> =51	<<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;5253const SEED: u32 = 0;5455// TODO: remove if this is given in substrate commit.56macro_rules! whitelist {57	($acc:ident) => {58		frame_benchmarking::benchmarking::add_to_whitelist(59			frame_system::Account::<T>::hashed_key_for(&$acc).into(),60		);61	};62}6364fn assert_last_event<T: Config>(generic_event: <T as Config>::RuntimeEvent) {65	let events = frame_system::Pallet::<T>::events();66	let system_event: <T as frame_system::Config>::RuntimeEvent = generic_event.into();67	// compare to the last event record68	let EventRecord { event, .. } = &events[events.len() - 1];69	assert_eq!(event, &system_event);70}7172fn create_funded_user<T: Config>(73	string: &'static str,74	n: u32,75	balance_factor: u32,76) -> T::AccountId {77	let user = account(string, n, SEED);78	let balance = T::Currency::minimum_balance() * balance_factor.into();79	let _ = T::Currency::make_free_balance_be(&user, balance);80	user81}8283fn keys<T: Config + session::Config>(c: u32) -> <T as session::Config>::Keys {84	use rand::{RngCore, SeedableRng};8586	let keys = {87		let mut keys = [0u8; 128];8889		if c > 0 {90			let mut rng = rand::rngs::StdRng::seed_from_u64(c as u64);91			rng.fill_bytes(&mut keys);92		}9394		keys95	};9697	Decode::decode(&mut &keys[..]).unwrap()98}99100fn validator<T: Config + session::Config>(c: u32) -> (T::AccountId, <T as session::Config>::Keys) {101	(create_funded_user::<T>("candidate", c, 1000), keys::<T>(c))102}103104fn register_validators<T: Config + session::Config>(count: u32) -> Vec<T::AccountId> {105	let validators = (0..count).map(|c| validator::<T>(c)).collect::<Vec<_>>();106107	for (who, keys) in validators.clone() {108		<session::Pallet<T>>::set_keys(RawOrigin::Signed(who).into(), keys, Vec::new()).unwrap();109	}110111	validators.into_iter().map(|(who, _)| who).collect()112}113114fn register_candidates<T: Config>(count: u32) {115	let candidates = (0..count).map(|c| account("candidate", c, SEED)).collect::<Vec<_>>();116	assert!(<CandidacyBond<T>>::get() > 0u32.into(), "Bond cannot be zero!");117118	for who in candidates {119		T::Currency::make_free_balance_be(&who, <CandidacyBond<T>>::get() * 2u32.into());120		<CollatorSelection<T>>::register_as_candidate(RawOrigin::Signed(who).into()).unwrap();121	}122}123124benchmarks! {125	where_clause { where T: pallet_authorship::Config + session::Config }126127	set_invulnerables {128		let b in 1 .. T::MaxInvulnerables::get();129		let new_invulnerables = register_validators::<T>(b);130		let origin = T::UpdateOrigin::successful_origin();131	}: {132		assert_ok!(133			<CollatorSelection<T>>::set_invulnerables(origin, new_invulnerables.clone())134		);135	}136	verify {137		assert_last_event::<T>(Event::NewInvulnerables{invulnerables: new_invulnerables}.into());138	}139140	set_desired_candidates {141		let max: u32 = 999;142		let origin = T::UpdateOrigin::successful_origin();143	}: {144		assert_ok!(145			<CollatorSelection<T>>::set_desired_candidates(origin, max.clone())146		);147	}148	verify {149		assert_last_event::<T>(Event::NewDesiredCandidates{desired_candidates: max}.into());150	}151152	set_candidacy_bond {153		let bond_amount: BalanceOf<T> = T::Currency::minimum_balance() * 10u32.into();154		let origin = T::UpdateOrigin::successful_origin();155	}: {156		assert_ok!(157			<CollatorSelection<T>>::set_candidacy_bond(origin, bond_amount.clone())158		);159	}160	verify {161		assert_last_event::<T>(Event::NewCandidacyBond{bond_amount}.into());162	}163164	// worse case is when we have all the max-candidate slots filled except one, and we fill that165	// one.166	register_as_candidate {167		let c in 1 .. T::MaxCandidates::get();168169		<CandidacyBond<T>>::put(T::Currency::minimum_balance());170		<DesiredCandidates<T>>::put(c + 1);171172		register_validators::<T>(c);173		register_candidates::<T>(c);174175		let caller: T::AccountId = whitelisted_caller();176		let bond: BalanceOf<T> = T::Currency::minimum_balance() * 2u32.into();177		T::Currency::make_free_balance_be(&caller, bond.clone());178179		<session::Pallet<T>>::set_keys(180			RawOrigin::Signed(caller.clone()).into(),181			keys::<T>(c + 1),182			Vec::new()183		).unwrap();184185	}: _(RawOrigin::Signed(caller.clone()))186	verify {187		assert_last_event::<T>(Event::CandidateAdded{account_id: caller, deposit: bond / 2u32.into()}.into());188	}189190	// worse case is the last candidate leaving.191	leave_intent {192		let c in (T::MinCandidates::get() + 1) .. T::MaxCandidates::get();193		<CandidacyBond<T>>::put(T::Currency::minimum_balance());194		<DesiredCandidates<T>>::put(c);195196		register_validators::<T>(c);197		register_candidates::<T>(c);198199		let leaving = <Candidates<T>>::get().last().unwrap().who.clone();200		whitelist!(leaving);201	}: _(RawOrigin::Signed(leaving.clone()))202	verify {203		assert_last_event::<T>(Event::CandidateRemoved{account_id: leaving}.into());204	}205206	// worse case is paying a non-existing candidate account.207	note_author {208		<CandidacyBond<T>>::put(T::Currency::minimum_balance());209		T::Currency::make_free_balance_be(210			&<CollatorSelection<T>>::account_id(),211			T::Currency::minimum_balance() * 4u32.into(),212		);213		let author = account("author", 0, SEED);214		let new_block: T::BlockNumber = 10u32.into();215216		frame_system::Pallet::<T>::set_block_number(new_block);217		assert!(T::Currency::free_balance(&author) == 0u32.into());218	}: {219		<CollatorSelection<T> as EventHandler<_, _>>::note_author(author.clone())220	} verify {221		assert!(T::Currency::free_balance(&author) > 0u32.into());222		assert_eq!(frame_system::Pallet::<T>::block_number(), new_block);223	}224225	// worst case for new session.226	new_session {227		let r in 1 .. T::MaxCandidates::get();228		let c in 1 .. T::MaxCandidates::get();229230		<CandidacyBond<T>>::put(T::Currency::minimum_balance());231		<DesiredCandidates<T>>::put(c);232		frame_system::Pallet::<T>::set_block_number(0u32.into());233234		register_validators::<T>(c);235		register_candidates::<T>(c);236237		let new_block: T::BlockNumber = 1800u32.into();238		let zero_block: T::BlockNumber = 0u32.into();239		let candidates = <Candidates<T>>::get();240241		let non_removals = c.saturating_sub(r);242243		for i in 0..c {244			<LastAuthoredBlock<T>>::insert(candidates[i as usize].who.clone(), zero_block);245		}246247		if non_removals > 0 {248			for i in 0..non_removals {249				<LastAuthoredBlock<T>>::insert(candidates[i as usize].who.clone(), new_block);250			}251		} else {252			for i in 0..c {253				<LastAuthoredBlock<T>>::insert(candidates[i as usize].who.clone(), new_block);254			}255		}256257		let pre_length = <Candidates<T>>::get().len();258259		frame_system::Pallet::<T>::set_block_number(new_block);260261		assert!(<Candidates<T>>::get().len() == c as usize);262	}: {263		<CollatorSelection<T> as SessionManager<_>>::new_session(0)264	} verify {265		if c > r && non_removals >= T::MinCandidates::get() {266			assert!(<Candidates<T>>::get().len() < pre_length);267		} else if c > r && non_removals < T::MinCandidates::get() {268			assert!(<Candidates<T>>::get().len() == T::MinCandidates::get() as usize);269		} else {270			assert!(<Candidates<T>>::get().len() == pre_length);271		}272	}273}274275impl_benchmark_test_suite!(CollatorSelection, crate::mock::new_test_ext(), crate::mock::Test,);