`c097c75cc882`

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tests/src/inflation.seqtest.ts2.7 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/>.1617import {IKeyringPair} from '@polkadot/types/types';18import {expect, itSub, usingPlaygrounds} from './util';1920// todo:playgrounds requires sudo, look into on the later stage21describe('integration test: Inflation', () => {22  let superuser: IKeyringPair;2324  before(async () => {25    await usingPlaygrounds(async (_, privateKey) => {26      superuser = await privateKey('//Alice');27    });28  });2930  itSub('First year inflation is 10%', async ({helper}) => {31    // Make sure non-sudo can't start inflation32    const [bob] = await helper.arrange.createAccounts([10n], superuser);3334    await expect(helper.executeExtrinsic(bob, 'api.tx.inflation.startInflation', [1])).to.be.rejectedWith(/BadOrigin/);3536    // Make sure superuser can't start inflation without explicit sudo37    await expect(helper.executeExtrinsic(superuser, 'api.tx.inflation.startInflation', [1])).to.be.rejectedWith(/BadOrigin/);3839    // Start inflation on relay block 1 (Alice is sudo)40    const tx = helper.constructApiCall('api.tx.inflation.startInflation', [1]);41    await expect(helper.executeExtrinsic(superuser, 'api.tx.sudo.sudo', [tx])).to.not.be.rejected;4243    const blockInterval = (helper.getApi().consts.inflation.inflationBlockInterval as any).toBigInt();44    const totalIssuanceStart = ((await helper.callRpc('api.query.inflation.startingYearTotalIssuance', [])) as any).toBigInt();45    const blockInflation = (await helper.callRpc('api.query.inflation.blockInflation', []) as any).toBigInt();4647    const YEAR = 5259600n;  // 6-second block. Blocks in one year48    // const YEAR = 2629800n; // 12-second block. Blocks in one year4950    const totalExpectedInflation = totalIssuanceStart / 10n;51    const totalActualInflation = blockInflation * YEAR / blockInterval;5253    const tolerance = 0.00001; // Relative difference per year between theoretical and actual inflation54    const expectedInflation = totalExpectedInflation / totalActualInflation - 1n;5556    expect(Math.abs(Number(expectedInflation))).to.be.lessThanOrEqual(tolerance);57  });58});