`e1baaf9b0769`

source

tests/src/eth/contractSponsoring.test.ts24.4 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 {expect} from 'chai';18import { expectSubstrateEventsAtBlock } from '../util/helpers';19import {20  contractHelpers,21  createEthAccountWithBalance,22  transferBalanceToEth,23  deployFlipper,24  itWeb3,25  SponsoringMode,26  createEthAccount,27  ethBalanceViaSub,28  normalizeEvents,29} from './util/helpers';3031describe('Sponsoring EVM contracts', () => {32  itWeb3('Self sponsored can be set by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {33    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);34    const flipper = await deployFlipper(web3, owner);35    const helpers = contractHelpers(web3, owner);36    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;37    await expect(helpers.methods.selfSponsoredEnable(flipper.options.address).send()).to.be.not.rejected;38    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;39  });4041  itWeb3('Set self sponsored events', async ({api, web3, privateKeyWrapper}) => {42    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);43    const flipper = await deployFlipper(web3, owner);44    const helpers = contractHelpers(web3, owner);45    46    const result = await helpers.methods.selfSponsoredEnable(flipper.options.address).send();47    // console.log(result);48    const ethEvents = normalizeEvents(result.events);49    expect(ethEvents).to.be.deep.equal([50      {51        address: flipper.options.address,52        event: 'ContractSponsorSet',53        args: {54          contractAddress: flipper.options.address,55          sponsor: flipper.options.address,56        },57      },58      {59        address: flipper.options.address,60        event: 'ContractSponsorshipConfirmed',61        args: {62          contractAddress: flipper.options.address,63          sponsor: flipper.options.address,64        },65      },66    ]);6768    await expectSubstrateEventsAtBlock(69      api, 70      result.blockNumber,71      'evmContractHelpers',72      ['ContractSponsorSet','ContractSponsorshipConfirmed'],73    );74  });7576  itWeb3('Self sponsored can not be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {77    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);78    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);79    const flipper = await deployFlipper(web3, owner);80    const helpers = contractHelpers(web3, owner);81    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;82    await expect(helpers.methods.selfSponsoredEnable(flipper.options.address).call({from: notOwner})).to.be.rejectedWith('NoPermission');83    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;84  });8586  itWeb3('Sponsoring can be set by the address that has deployed the contract', async ({api, web3, privateKeyWrapper}) => {87    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);88    const flipper = await deployFlipper(web3, owner);89    const helpers = contractHelpers(web3, owner);90    expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;91    await expect(helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner})).to.be.not.rejected;92    expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;93  });9495  itWeb3('Sponsoring cannot be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {96    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);97    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);98    const flipper = await deployFlipper(web3, owner);99    const helpers = contractHelpers(web3, owner);100    expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;101    await expect(helpers.methods.setSponsoringMode(notOwner, SponsoringMode.Allowlisted).call({from: notOwner})).to.be.rejectedWith('NoPermission');102    expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;103  });104  105  itWeb3('Sponsor can be set by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {106    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);107    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);108    const flipper = await deployFlipper(web3, owner);109    const helpers = contractHelpers(web3, owner);110    expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;111    await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;112    expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.true;113  });114  115  itWeb3('Set sponsor event', async ({api, web3, privateKeyWrapper}) => {116    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);117    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);118    const flipper = await deployFlipper(web3, owner);119    const helpers = contractHelpers(web3, owner);120    121    const result = await helpers.methods.setSponsor(flipper.options.address, sponsor).send();122    const events = normalizeEvents(result.events);123    expect(events).to.be.deep.equal([124      {125        address: flipper.options.address,126        event: 'ContractSponsorSet',127        args: {128          contractAddress: flipper.options.address,129          sponsor: sponsor,130        },131      },132    ]);133134    await expectSubstrateEventsAtBlock(135      api, 136      result.blockNumber,137      'evmContractHelpers',138      ['ContractSponsorSet'],139    );140  });141  142  itWeb3('Sponsor can not be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {143    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);144    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);145    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);146    const flipper = await deployFlipper(web3, owner);147    const helpers = contractHelpers(web3, owner);148    expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;149    await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).call({from: notOwner})).to.be.rejectedWith('NoPermission');150    expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;151  });152153  itWeb3('Sponsorship can be confirmed by the address that pending as sponsor', async ({api, web3, privateKeyWrapper}) => {154    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);155    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);156    const flipper = await deployFlipper(web3, owner);157    const helpers = contractHelpers(web3, owner);158    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;159    await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;160    await expect(helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor})).to.be.not.rejected;161    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;162  });163164  itWeb3('Confirm sponsorship event', async ({api, web3, privateKeyWrapper}) => {165    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);166    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);167    const flipper = await deployFlipper(web3, owner);168    const helpers = contractHelpers(web3, owner);169    await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;170    const result = await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});171    const events = normalizeEvents(result.events);172    expect(events).to.be.deep.equal([173      {174        address: flipper.options.address,175        event: 'ContractSponsorshipConfirmed',176        args: {177          contractAddress: flipper.options.address,178          sponsor: sponsor,179        },180      },181    ]);182183    await expectSubstrateEventsAtBlock(184      api, 185      result.blockNumber,186      'evmContractHelpers',187      ['ContractSponsorshipConfirmed'],188    );189  });190191  itWeb3('Sponsorship can not be confirmed by the address that not pending as sponsor', async ({api, web3, privateKeyWrapper}) => {192    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);193    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);194    const notSponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);195    const flipper = await deployFlipper(web3, owner);196    const helpers = contractHelpers(web3, owner);197    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;198    await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;199    await expect(helpers.methods.confirmSponsorship(flipper.options.address).call({from: notSponsor})).to.be.rejectedWith('NoPermission');200    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;201  });202203  itWeb3('Sponsorship can not be confirmed by the address that not set as sponsor', async ({api, web3, privateKeyWrapper}) => {204    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);205    const notSponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);206    const flipper = await deployFlipper(web3, owner);207    const helpers = contractHelpers(web3, owner);208    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;209    await expect(helpers.methods.confirmSponsorship(flipper.options.address).call({from: notSponsor})).to.be.rejectedWith('NoPendingSponsor');210    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;211  });212213  itWeb3('Get self sponsored sponsor', async ({api, web3, privateKeyWrapper}) => {214    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);215    const flipper = await deployFlipper(web3, owner);216    const helpers = contractHelpers(web3, owner);217    await helpers.methods.selfSponsoredEnable(flipper.options.address).send();218    219    const result = await helpers.methods.getSponsor(flipper.options.address).call();220221    expect(result[0]).to.be.eq(flipper.options.address);222    expect(result[1]).to.be.eq('0');223  });224225  itWeb3('Get confirmed sponsor', async ({api, web3, privateKeyWrapper}) => {226    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);227    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);228    const flipper = await deployFlipper(web3, owner);229    const helpers = contractHelpers(web3, owner);230    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();231    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});232    233    const result = await helpers.methods.getSponsor(flipper.options.address).call();234235    expect(result[0]).to.be.eq(sponsor);236    expect(result[1]).to.be.eq('0');237  });238239  itWeb3('Sponsor can be removed by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {240    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);241    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);242    const flipper = await deployFlipper(web3, owner);243    const helpers = contractHelpers(web3, owner);244245    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;246    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();247    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});248    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;249    250    await helpers.methods.removeSponsor(flipper.options.address).send();251    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;252  });253254  itWeb3('Remove sponsor event', async ({api, web3, privateKeyWrapper}) => {255    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);256    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);257    const flipper = await deployFlipper(web3, owner);258    const helpers = contractHelpers(web3, owner);259260    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();261    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});262    263    const result = await helpers.methods.removeSponsor(flipper.options.address).send();264    const events = normalizeEvents(result.events);265    expect(events).to.be.deep.equal([266      {267        address: flipper.options.address,268        event: 'ContractSponsorRemoved',269        args: {270          contractAddress: flipper.options.address,271        },272      },273    ]);274275    await expectSubstrateEventsAtBlock(276      api, 277      result.blockNumber,278      'evmContractHelpers',279      ['ContractSponsorRemoved'],280    );281  });282283  itWeb3('Sponsor can not be removed by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {284    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);285    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);286    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);287    const flipper = await deployFlipper(web3, owner);288    const helpers = contractHelpers(web3, owner);289290    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;291    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();292    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});293    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;294    295    await expect(helpers.methods.removeSponsor(flipper.options.address).call({from: notOwner})).to.be.rejectedWith('NoPermission');296    expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;297  });298299  itWeb3('In generous mode, non-allowlisted user transaction will be sponsored', async ({api, web3, privateKeyWrapper}) => {300    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);301    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);302    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);303304    const flipper = await deployFlipper(web3, owner);305306    const helpers = contractHelpers(web3, owner);307308    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();309    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});310311    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Generous).send({from: owner});312    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});313314    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);315    const callerBalanceBefore = await ethBalanceViaSub(api, caller);316317    await flipper.methods.flip().send({from: caller});318    expect(await flipper.methods.getValue().call()).to.be.true;319320    // Balance should be taken from sponsor instead of caller321    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);322    const callerBalanceAfter = await ethBalanceViaSub(api, caller);323    expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;324    expect(callerBalanceAfter).to.be.eq(callerBalanceBefore);325  });326327  itWeb3('In generous mode, non-allowlisted user transaction will be self sponsored', async ({api, web3, privateKeyWrapper}) => {328    const alice = privateKeyWrapper('//Alice');329330    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);331    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);332333    const flipper = await deployFlipper(web3, owner);334335    const helpers = contractHelpers(web3, owner);336337    await helpers.methods.selfSponsoredEnable(flipper.options.address).send();338339    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Generous).send({from: owner});340    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});341342    await transferBalanceToEth(api, alice, flipper.options.address);343344    const contractBalanceBefore = await ethBalanceViaSub(api, flipper.options.address);345    const callerBalanceBefore = await ethBalanceViaSub(api, caller);346347    await flipper.methods.flip().send({from: caller});348    expect(await flipper.methods.getValue().call()).to.be.true;349350    // Balance should be taken from sponsor instead of caller351    const contractBalanceAfter = await ethBalanceViaSub(api, flipper.options.address);352    const callerBalanceAfter = await ethBalanceViaSub(api, caller);353    expect(contractBalanceAfter < contractBalanceBefore).to.be.true;354    expect(callerBalanceAfter).to.be.eq(callerBalanceBefore);355  });356357  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should decrease (allowlisted)', async ({api, web3, privateKeyWrapper}) => {358    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);359    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);360    const caller = createEthAccount(web3);361362    const flipper = await deployFlipper(web3, owner);363364    const helpers = contractHelpers(web3, owner);365    await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});366    await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});367368    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner});369    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});370371    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();372    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});373374    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);375    expect(sponsorBalanceBefore).to.be.not.equal('0');376377    await flipper.methods.flip().send({from: caller});378    expect(await flipper.methods.getValue().call()).to.be.true;379380    // Balance should be taken from flipper instead of caller381    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);382    expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;383  });384385  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should not decrease (non-allowlisted)', async ({api, web3, privateKeyWrapper}) => {386    const alice = privateKeyWrapper('//Alice');387388    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);389    const caller = createEthAccount(web3);390391    const flipper = await deployFlipper(web3, owner);392393    const helpers = contractHelpers(web3, owner);394395    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner});396    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});397398    await transferBalanceToEth(api, alice, flipper.options.address);399400    const originalFlipperBalance = await web3.eth.getBalance(flipper.options.address);401    expect(originalFlipperBalance).to.be.not.equal('0');402403    await expect(flipper.methods.flip().send({from: caller})).to.be.rejectedWith(/InvalidTransaction::Payment/);404    expect(await flipper.methods.getValue().call()).to.be.false;405406    // Balance should be taken from flipper instead of caller407    const balanceAfter = await web3.eth.getBalance(flipper.options.address);408    expect(+balanceAfter).to.be.equals(+originalFlipperBalance);409  });410411  itWeb3('Sponsoring is set, an address that has UNQ can send a transaction and it works. User balance should not change', async ({api, web3, privateKeyWrapper}) => {412    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);413    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);414    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);415416    const flipper = await deployFlipper(web3, owner);417418    const helpers = contractHelpers(web3, owner);419    await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});420    await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});421422    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner});423    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});424425    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();426    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});427428    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);429    const callerBalanceBefore = await ethBalanceViaSub(api, caller);430431    await flipper.methods.flip().send({from: caller});432    expect(await flipper.methods.getValue().call()).to.be.true;433434    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);435    const callerBalanceAfter = await ethBalanceViaSub(api, caller);436    expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;437    expect(callerBalanceAfter).to.be.equals(callerBalanceBefore);438  });439440  itWeb3('Sponsoring is limited, with setContractRateLimit. The limitation is working if transactions are sent more often, the sender pays the commission.', async ({api, web3, privateKeyWrapper}) => {441    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);442    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);443    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);444    const originalCallerBalance = await web3.eth.getBalance(caller);445446    const flipper = await deployFlipper(web3, owner);447448    const helpers = contractHelpers(web3, owner);449    await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});450    await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});451452    await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner});453    await helpers.methods.setSponsoringRateLimit(flipper.options.address, 10).send({from: owner});454455    await helpers.methods.setSponsor(flipper.options.address, sponsor).send();456    await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});457458    const originalFlipperBalance = await web3.eth.getBalance(sponsor);459    expect(originalFlipperBalance).to.be.not.equal('0');460461    await flipper.methods.flip().send({from: caller});462    expect(await flipper.methods.getValue().call()).to.be.true;463    expect(await web3.eth.getBalance(caller)).to.be.equals(originalCallerBalance);464465    const newFlipperBalance = await web3.eth.getBalance(sponsor);466    expect(newFlipperBalance).to.be.not.equals(originalFlipperBalance);467468    await flipper.methods.flip().send({from: caller});469    expect(await web3.eth.getBalance(sponsor)).to.be.equal(newFlipperBalance);470    expect(await web3.eth.getBalance(caller)).to.be.not.equals(originalCallerBalance);471  });472473  // TODO: Find a way to calculate default rate limit474  itWeb3('Default rate limit equals 7200', async ({api, web3, privateKeyWrapper}) => {475    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);476    const flipper = await deployFlipper(web3, owner);477    const helpers = contractHelpers(web3, owner);478    expect(await helpers.methods.getSponsoringRateLimit(flipper.options.address).call()).to.be.equals('7200');479  });480});