git.delta.rocks / unique-network / refs/commits / 83c9d6351207

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/>.1617import type {IKeyringPair} from '@polkadot/types/types';18import {expect, itSub, usingPlaygrounds} from './util/index.js';1920const TREASURY = '5EYCAe5ijiYfyeZ2JJCGq56LmPyNRAKzpG4QkoQkkQNB5e6Z';2122// todo:playgrounds requires sudo, look into on the later stage23describe('integration test: Inflation', () => {24  let superuser: IKeyringPair;2526  before(async () => {27    await usingPlaygrounds(async (_, privateKey) => {28      superuser = await privateKey('//Alice');29    });30  });3132  itSub('First year inflation is 10%', async ({helper}) => {33    // Make sure non-sudo can't start inflation34    const [bob] = await helper.arrange.createAccounts([10n], superuser);3536    await expect(helper.executeExtrinsic(bob, 'api.tx.inflation.startInflation', [1])).to.be.rejectedWith(/BadOrigin/);3738    // Make sure superuser can't start inflation without explicit sudo39    await expect(helper.executeExtrinsic(superuser, 'api.tx.inflation.startInflation', [1])).to.be.rejectedWith(/BadOrigin/);4041    // Start inflation on relay block 1 (Alice is sudo)42    const tx = helper.constructApiCall('api.tx.inflation.startInflation', [1]);43    await expect(helper.executeExtrinsic(superuser, 'api.tx.sudo.sudo', [tx])).to.not.be.rejected;4445    const blockInterval = (helper.getApi().consts.inflation.inflationBlockInterval as any).toBigInt();46    const totalIssuanceStart = ((await helper.callRpc('api.query.inflation.startingYearTotalIssuance', [])) as any).toBigInt();47    const blockInflation = (await helper.callRpc('api.query.inflation.blockInflation', []) as any).toBigInt();4849    const YEAR = 5259600n;  // 6-second block. Blocks in one year50    // const YEAR = 2629800n; // 12-second block. Blocks in one year5152    const totalExpectedInflation = totalIssuanceStart / 10n;53    const totalActualInflation = blockInflation * YEAR / blockInterval;5455    const tolerance = 0.00001; // Relative difference per year between theoretical and actual inflation56    const expectedInflation = totalExpectedInflation / totalActualInflation - 1n;5758    expect(Math.abs(Number(expectedInflation))).to.be.lessThanOrEqual(tolerance);59  });6061  itSub('Inflation happens after inflation block interval', async ({helper}) => {62    const api = helper.getApi();63    const blockInterval = await api.consts.inflation.inflationBlockInterval.toNumber();6465    const relayBlock = (await api.query.parachainSystem.lastRelayChainBlockNumber()).toNumber();66    await helper.executeExtrinsic(superuser, 'api.tx.sudo.sudo', [helper.constructApiCall('api.tx.inflation.startInflation', [relayBlock])]);67    const blockInflation = (await helper.callRpc('api.query.inflation.blockInflation', []) as any).toBigInt();68    const startBlock = (relayBlock + blockInterval) - (relayBlock % blockInterval) + 1;6970    await helper.wait.forRelayBlockNumber(startBlock);7172    const treasuryBalanceBefore = await helper.balance.getSubstrate(TREASURY);7374    await helper.wait.forRelayBlockNumber(startBlock + blockInterval);7576    const treasuryBalanceAfter = await helper.balance.getSubstrate(TREASURY);77    expect(Number(treasuryBalanceAfter)).to.be.eqls(Number(treasuryBalanceBefore + blockInflation));78  });79});