1import chai from 'chai';2import chaiAsPromised from 'chai-as-promised';3import { default as usingApi, submitTransactionAsync } from "./substrate/substrate-api";4import { alicesPublicKey, bobsPublicKey } from "./accounts";5import privateKey from "./substrate/privateKey";6import { BigNumber } from 'bignumber.js';7import { createCollectionExpectSuccess, getGenericResult } from './util/helpers';89chai.use(chaiAsPromised);10const expect = chai.expect;1112const Treasury = "5EYCAe5ijiYfyeZ2JJCGq56LmPyNRAKzpG4QkoQkkQNB5e6Z";13const saneMinimumFee = 0.0001;14const saneMaximumFee = 0.01;1516describe('integration test: Fees must be credited to Treasury:', () => {17 it('Total issuance does not change', async () => {18 await usingApi(async (api) => {19 const totalBefore = new BigNumber((await api.query.balances.totalIssuance()).toString());2021 const alicePrivateKey = privateKey('//Alice');22 const amount = new BigNumber(1);23 const transfer = api.tx.balances.transfer(bobsPublicKey, amount.toFixed());2425 const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));2627 const totalAfter = new BigNumber((await api.query.balances.totalIssuance()).toString());2829 expect(result.success).to.be.true;30 expect(totalAfter.toFixed()).to.be.equal(totalBefore.toFixed());31 });32 });3334 it('Sender balance decreased by fee+sent amount, Treasury balance increased by fee', async () => {35 await usingApi(async (api) => {36 const alicePrivateKey = privateKey('//Alice');37 const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());38 const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());3940 const amount = new BigNumber(1);41 const transfer = api.tx.balances.transfer(bobsPublicKey, amount.toFixed());42 const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));4344 const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());45 const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());46 const fee = aliceBalanceBefore.minus(aliceBalanceAfter).minus(amount);47 const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);4849 expect(result.success).to.be.true;50 expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());51 });52 });5354 it('Treasury balance increased by failed tx fee', async () => {55 await usingApi(async (api) => {56 const bobPrivateKey = privateKey('//Bob');57 const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());58 const bobBalanceBefore = new BigNumber((await api.query.system.account(bobsPublicKey)).data.free.toString());5960 const badTx = api.tx.balances.setBalance(alicesPublicKey, 0, 0);61 const result = getGenericResult(await submitTransactionAsync(bobPrivateKey, badTx));6263 const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());64 const bobBalanceAfter = new BigNumber((await api.query.system.account(bobsPublicKey)).data.free.toString());65 const fee = bobBalanceBefore.minus(bobBalanceAfter);66 const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);6768 expect(result.success).to.be.false;69 expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());70 });71 });7273 it('NFT Transactions also send fees to Treasury', async () => {74 await usingApi(async (api) => {75 const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());76 const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());7778 await createCollectionExpectSuccess('A', 'B', 'C', 'NFT');7980 const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());81 const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());82 const fee = aliceBalanceBefore.minus(aliceBalanceAfter);83 const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);8485 expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());86 });87 });8889 it('Fees are sane', async () => {90 await usingApi(async (api) => {91 const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());92 const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());9394 await createCollectionExpectSuccess('A', 'B', 'C', 'NFT');9596 const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());97 const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());98 const fee = aliceBalanceBefore.minus(aliceBalanceAfter);99 const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);100101 expect(fee.dividedBy(1e15).toNumber()).to.be.lessThan(0.01);102 expect(fee.dividedBy(1e15).toNumber()).to.be.greaterThan(0.0001);103 });104 });105106});107