git.delta.rocks / unique-network / refs/commits / 5c283c1e8412

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.3233use crate as collator_selection;34use crate::{mock::*, Error};35use frame_support::{36	assert_noop, assert_ok,37	traits::{Currency, GenesisBuild, OnInitialize},38};39use frame_system::RawOrigin;40use pallet_balances::Error as BalancesError;41use sp_runtime::traits::BadOrigin;42use pallet_configuration::{43	CollatorSelectionDesiredCollatorsOverride as DesiredCollators,44	CollatorSelectionKickThresholdOverride as KickThreshold,45	CollatorSelectionLicenseBondOverride as LicenseBond,46};4748fn get_license_and_onboard(account_id: <Test as frame_system::Config>::AccountId) {49	assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(50		account_id51	)));52	assert_ok!(CollatorSelection::onboard(RuntimeOrigin::signed(53		account_id54	)));55}5657#[test]58fn basic_setup_works() {59	new_test_ext().execute_with(|| {60		assert_eq!(<DesiredCollators<Test>>::get(), 5);61		assert_eq!(<LicenseBond<Test>>::get(), 10);6263		assert!(CollatorSelection::candidates().is_empty());64		assert_eq!(CollatorSelection::invulnerables(), vec![1, 2]);65	});66}6768#[test]69fn it_should_add_invulnerables() {70	new_test_ext().execute_with(|| {71		assert_ok!(CollatorSelection::add_invulnerable(72			RuntimeOrigin::signed(RootAccount::get()),73			174		));75		assert_ok!(CollatorSelection::add_invulnerable(76			RuntimeOrigin::signed(RootAccount::get()),77			278		));79		assert_eq!(CollatorSelection::invulnerables(), vec![1, 2]);8081		// cannot set with non-root.82		assert_noop!(83			CollatorSelection::add_invulnerable(RuntimeOrigin::signed(1), 3),84			BadOrigin85		);8687		// cannot set invulnerables without associated validator keys88		assert_noop!(89			CollatorSelection::add_invulnerable(RuntimeOrigin::signed(RootAccount::get()), 7),90			Error::<Test>::ValidatorNotRegistered91		);92	});93}9495#[test]96fn it_should_remove_invulnerables() {97	new_test_ext().execute_with(|| {98		assert_ok!(CollatorSelection::add_invulnerable(99			RuntimeOrigin::signed(RootAccount::get()),100			1101		));102		assert_ok!(CollatorSelection::add_invulnerable(103			RuntimeOrigin::signed(RootAccount::get()),104			2105		));106107		// cannot remove with non-root.108		assert_noop!(109			CollatorSelection::remove_invulnerable(RuntimeOrigin::signed(1), 3),110			BadOrigin111		);112113		assert_ok!(CollatorSelection::remove_invulnerable(114			RuntimeOrigin::signed(RootAccount::get()),115			2116		));117		assert_eq!(CollatorSelection::invulnerables(), vec![1]);118119		// cannot remove an invulnerable if there would be 0 invulnerables.120		assert_noop!(121			CollatorSelection::remove_invulnerable(RuntimeOrigin::signed(RootAccount::get()), 1),122			Error::<Test>::TooFewInvulnerables123		);124	});125}126127#[test]128fn set_desired_collators_works() {129	new_test_ext().execute_with(|| {130		// given131		assert_eq!(<DesiredCollators<Test>>::get(), 5);132133		// can set134		assert_ok!(Configuration::set_collator_selection_desired_collators(135			RawOrigin::Root.into(),136			Some(7)137		));138		assert_eq!(<DesiredCollators<Test>>::get(), 7);139140		// rejects bad origin141		assert_noop!(142			Configuration::set_collator_selection_desired_collators(143				RuntimeOrigin::signed(1),144				Some(8)145			),146			BadOrigin147		);148	});149}150151#[test]152fn set_license_bond() {153	new_test_ext().execute_with(|| {154		// given155		assert_eq!(<LicenseBond<Test>>::get(), 10);156157		// can set158		assert_ok!(Configuration::set_collator_selection_license_bond(159			RawOrigin::Root.into(),160			Some(7)161		));162		assert_eq!(<LicenseBond<Test>>::get(), 7);163164		// rejects bad origin.165		assert_noop!(166			Configuration::set_collator_selection_license_bond(RuntimeOrigin::signed(1), Some(8)),167			BadOrigin168		);169	});170}171172#[test]173fn cannot_onboard_candidate_with_no_license() {174	new_test_ext().execute_with(|| {175		// can't onboard a candidate who did not get a license.176		assert_noop!(177			CollatorSelection::onboard(RuntimeOrigin::signed(3)),178			Error::<Test>::NoLicense,179		);180181		// but give it a license and welcome aboard.182		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(3)));183		assert_ok!(CollatorSelection::onboard(RuntimeOrigin::signed(3)));184	})185}186187#[test]188fn cannot_onboard_candidate_if_too_many() {189	new_test_ext().execute_with(|| {190		// reset desired candidates191		<pallet_configuration::CollatorSelectionDesiredCollatorsOverride<Test>>::put(0);192193		// can still get a license.194		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(4)));195196		// can't accept anyone anymore.197		assert_noop!(198			CollatorSelection::onboard(RuntimeOrigin::signed(4)),199			Error::<Test>::TooManyCandidates,200		);201202		// reset desired candidates to invulnerables + 1203		<pallet_configuration::CollatorSelectionDesiredCollatorsOverride<Test>>::put(3);204		assert_ok!(CollatorSelection::onboard(RuntimeOrigin::signed(4)));205206		// but no more.207		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(5)));208		assert_noop!(209			CollatorSelection::onboard(RuntimeOrigin::signed(5)),210			Error::<Test>::TooManyCandidates,211		);212	})213}214215#[test]216fn cannot_obtain_license_if_keys_not_registered() {217	new_test_ext().execute_with(|| {218		// can't 7 because keys not registered.219		assert_noop!(220			CollatorSelection::get_license(RuntimeOrigin::signed(7)),221			Error::<Test>::ValidatorNotRegistered222		);223	})224}225226#[test]227fn cannot_obtain_license_if_poor() {228	new_test_ext().execute_with(|| {229		assert_eq!(Balances::free_balance(&3), 100);230		assert_eq!(Balances::free_balance(&33), 0);231232		// works233		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(3)));234235		// poor236		assert_noop!(237			CollatorSelection::get_license(RuntimeOrigin::signed(33)),238			BalancesError::<Test>::InsufficientBalance,239		);240	});241}242243#[test]244fn cannot_onboard_dupe_candidate() {245	new_test_ext().execute_with(|| {246		// can add 3 as candidate247		get_license_and_onboard(3);248		assert_eq!(CollatorSelection::license_deposit_of(3), 10);249		assert_eq!(CollatorSelection::candidates(), vec![3]);250		assert_eq!(CollatorSelection::last_authored_block(3), 10);251		assert_eq!(Balances::free_balance(3), 90);252253		// but no more254		assert_noop!(255			CollatorSelection::get_license(RuntimeOrigin::signed(3)),256			Error::<Test>::AlreadyHoldingLicense,257		);258		assert_noop!(259			CollatorSelection::onboard(RuntimeOrigin::signed(3)),260			Error::<Test>::AlreadyCandidate,261		);262	})263}264265#[test]266fn becoming_candidate_works() {267	new_test_ext().execute_with(|| {268		// given269		assert_eq!(<DesiredCollators<Test>>::get(), 5);270		assert_eq!(<LicenseBond<Test>>::get(), 10);271		assert_eq!(CollatorSelection::candidates(), Vec::new());272		assert_eq!(CollatorSelection::invulnerables(), vec![1, 2]);273274		// take two endowed, non-invulnerables accounts.275		assert_eq!(Balances::free_balance(&3), 100);276		assert_eq!(Balances::free_balance(&4), 100);277278		get_license_and_onboard(3);279		get_license_and_onboard(4);280281		assert_eq!(Balances::free_balance(&3), 90);282		assert_eq!(Balances::free_balance(&4), 90);283284		assert_eq!(CollatorSelection::candidates().len(), 2);285	});286}287288#[test]289fn cannot_become_candidate_if_invulnerable() {290	new_test_ext().execute_with(|| {291		assert_eq!(CollatorSelection::invulnerables(), vec![1, 2]);292293		// can obtain a license even if is invulnerable.294		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(1)));295		// but cannot onboard296		assert_noop!(297			CollatorSelection::onboard(RuntimeOrigin::signed(1)),298			Error::<Test>::AlreadyInvulnerable,299		);300301		// get a license and then become invulnerable.302		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(3)));303		assert_ok!(CollatorSelection::add_invulnerable(304			RuntimeOrigin::signed(RootAccount::get()),305			3306		));307		assert_noop!(308			CollatorSelection::onboard(RuntimeOrigin::signed(3)),309			Error::<Test>::AlreadyInvulnerable,310		);311	})312}313314#[test]315fn can_become_invulnerable_if_candidate() {316	new_test_ext().execute_with(|| {317		// become a candidate and then become invulnerable.318		get_license_and_onboard(3);319		assert_eq!(CollatorSelection::candidates(), vec![3]);320321		assert_ok!(CollatorSelection::add_invulnerable(322			RuntimeOrigin::signed(RootAccount::get()),323			3324		));325		// should exclude from candidates, but not revoke the license326		assert_eq!(CollatorSelection::candidates(), vec![]);327		assert_eq!(CollatorSelection::license_deposit_of(3), 10);328		assert_eq!(Balances::free_balance(3), 90);329	});330}331332#[test]333fn offboard() {334	new_test_ext().execute_with(|| {335		// register a candidate.336		get_license_and_onboard(3);337		assert_eq!(Balances::free_balance(3), 90);338339		// cannot leave if holds license but not yet candidate.340		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(4)));341		assert_noop!(342			CollatorSelection::offboard(RuntimeOrigin::signed(4)),343			Error::<Test>::NotCandidate344		);345		// cannot leave if does not hold license.346		assert_noop!(347			CollatorSelection::offboard(RuntimeOrigin::signed(5)),348			Error::<Test>::NotCandidate349		);350351		// bond is returned - only after releasing the license352		assert_ok!(CollatorSelection::offboard(RuntimeOrigin::signed(3)));353		assert_eq!(Balances::free_balance(3), 90);354		assert_eq!(CollatorSelection::last_authored_block(3), 0);355		assert_ok!(CollatorSelection::release_license(RuntimeOrigin::signed(3)));356		assert_eq!(Balances::free_balance(3), 100);357	});358}359360#[test]361fn release_license() {362	new_test_ext().execute_with(|| {363		// obtain a license to collate and reserve the bond.364		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(3)));365		assert_eq!(Balances::free_balance(3), 90);366367		// release the license and get the bond back.368		assert_ok!(CollatorSelection::release_license(RuntimeOrigin::signed(3)));369		assert_eq!(Balances::free_balance(3), 100);370371		// register a candidate.372		get_license_and_onboard(3);373		assert_eq!(Balances::free_balance(3), 90);374375		// can release license even if onboarded.376		assert_ok!(CollatorSelection::release_license(RuntimeOrigin::signed(3)));377		assert_eq!(Balances::free_balance(3), 100);378		assert_eq!(CollatorSelection::candidates(), vec![]);379	});380}381382#[test]383fn force_release_license() {384	new_test_ext().execute_with(|| {385		// obtain a license to collate and reserve the bond.386		assert_ok!(CollatorSelection::get_license(RuntimeOrigin::signed(3)));387		assert_eq!(Balances::free_balance(3), 90);388389		// cannot execute the operation as non-root390		assert_noop!(391			CollatorSelection::force_release_license(RuntimeOrigin::signed(3), 3),392			BadOrigin393		);394395		// release the license and get the bond back.396		assert_ok!(CollatorSelection::force_release_license(397			RuntimeOrigin::signed(RootAccount::get()),398			3399		));400		assert_eq!(Balances::free_balance(3), 100);401402		// register a candidate.403		get_license_and_onboard(3);404		assert_eq!(Balances::free_balance(3), 90);405406		// can release license even if onboarded.407		assert_ok!(CollatorSelection::force_release_license(408			RuntimeOrigin::signed(RootAccount::get()),409			3410		));411		assert_eq!(Balances::free_balance(3), 100);412		assert_eq!(CollatorSelection::candidates(), vec![]);413	});414}415416#[test]417fn authorship_event_handler() {418	new_test_ext().execute_with(|| {419		// put 100 in the pot + 5 for ED420		<pallet_balances::Pallet<T> as fungible::Mutate<T::AccountId>>::set_balance(421			&CollatorSelection::account_id(),422			105,423		);424425		// 4 is the default author.426		assert_eq!(Balances::free_balance(4), 100);427		get_license_and_onboard(4);428		// triggers `note_author`429		Authorship::on_initialize(1);430431		assert_eq!(CollatorSelection::candidates(), vec![4]);432		assert_eq!(CollatorSelection::last_authored_block(4), 0);433434		// half of the pot goes to the collator who's the author (4 in tests).435		assert_eq!(Balances::free_balance(4), 140);436		// half + ED stays.437		assert_eq!(Balances::free_balance(CollatorSelection::account_id()), 55);438	});439}440441#[test]442fn fees_edgecases() {443	new_test_ext().execute_with(|| {444		// Nothing panics, no reward when no ED in balance445		Authorship::on_initialize(1);446		// put some money into the pot at ED447		<pallet_balances::Pallet<T> as fungible::Mutate<T::AccountId>>::set_balance(448			&CollatorSelection::account_id(),449			5,450		);451		// 4 is the default author.452		assert_eq!(Balances::free_balance(4), 100);453		get_license_and_onboard(4);454		// triggers `note_author`455		Authorship::on_initialize(1);456457		assert_eq!(CollatorSelection::candidates(), vec![4]);458		assert_eq!(CollatorSelection::last_authored_block(4), 0);459		// Nothing received460		assert_eq!(Balances::free_balance(4), 90);461		// all fee stays462		assert_eq!(Balances::free_balance(CollatorSelection::account_id()), 5);463	});464}465466#[test]467fn session_management_works() {468	new_test_ext().execute_with(|| {469		initialize_to_block(1);470471		assert_eq!(SessionChangeBlock::get(), 0);472		assert_eq!(SessionHandlerCollators::get(), vec![1, 2]);473474		initialize_to_block(4);475476		assert_eq!(SessionChangeBlock::get(), 0);477		assert_eq!(SessionHandlerCollators::get(), vec![1, 2]);478479		// add a new collator480		get_license_and_onboard(5);481482		// session won't see this.483		assert_eq!(SessionHandlerCollators::get(), vec![1, 2]);484		// but we have a new candidate.485		assert_eq!(CollatorSelection::candidates().len(), 1);486487		initialize_to_block(10);488		assert_eq!(SessionChangeBlock::get(), 10);489		// pallet-session has 1 session delay; current validators are the same.490		assert_eq!(Session::validators(), vec![1, 2]);491		// queued ones are changed, and now we have 3.492		assert_eq!(Session::queued_keys().len(), 3);493		// session handlers (aura, et. al.) cannot see this yet.494		assert_eq!(SessionHandlerCollators::get(), vec![1, 2]);495496		initialize_to_block(20);497		assert_eq!(SessionChangeBlock::get(), 20);498		// changed are now reflected to session handlers.499		assert_eq!(SessionHandlerCollators::get(), vec![1, 2, 5]);500	});501}502503#[test]504fn kick_mechanism() {505	new_test_ext().execute_with(|| {506		// add a new collator507		get_license_and_onboard(3);508		get_license_and_onboard(4);509510		initialize_to_block(10);511		assert_eq!(CollatorSelection::candidates().len(), 2);512513		initialize_to_block(20);514		assert_eq!(SessionChangeBlock::get(), 20);515		// 4 authored this block, gets to stay 3 was kicked516		assert_eq!(CollatorSelection::candidates().len(), 1);517		// 3 will be kicked after 1 session delay518		assert_eq!(SessionHandlerCollators::get(), vec![1, 2, 3, 4]);519520		assert_eq!(CollatorSelection::candidates(), vec![4]);521		assert_eq!(<KickThreshold<Test>>::get(), 10);522		assert_eq!(CollatorSelection::last_authored_block(4), 20);523524		initialize_to_block(30);525		// 3 gets kicked after 1 session delay526		assert_eq!(SessionHandlerCollators::get(), vec![1, 2, 4]);527		// kicked collator gets their funds slashed, the deposit going to treasury528		assert_eq!(Balances::free_balance(3), 90);529	});530}531532#[test]533#[should_panic = "duplicate invulnerables in genesis."]534fn cannot_set_genesis_value_twice() {535	sp_tracing::try_init_simple();536	let mut t = frame_system::GenesisConfig::default()537		.build_storage::<Test>()538		.unwrap();539	let invulnerables = vec![1, 1];540541	let collator_selection = collator_selection::GenesisConfig::<Test> { invulnerables };542	// collator selection must be initialized before session.543	collator_selection.assimilate_storage(&mut t).unwrap();544}