git.delta.rocks / unique-network / refs/commits / add6044ac841

difftreelog

Sponsoring tests

str-mv2021-09-01parent: #54811ce.patch.diff
in: master

3 files changed

modifiedtests/src/eth/contractSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/eth/contractSponsoring.test.ts
+++ b/tests/src/eth/contractSponsoring.test.ts
@@ -5,92 +5,166 @@
 
 import privateKey from '../substrate/privateKey';
 import { expect } from 'chai';
-import { createCollectionExpectSuccess, 
-  createFungibleItemExpectSuccess, 
-  transferExpectSuccess, 
-  transferFromExpectSuccess, 
-  createItemExpectSuccess, 
-  setContractSponsoringRateLimitExpectSuccess,
-  enableContractSponsoringExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-  confirmSponsorshipExpectSuccess,
-  enableContractSponsoringExpectFailure} from '../util/helpers';
-import { collectionIdToAddress, 
+import {  
   contractHelpers,
   createEthAccountWithBalance,
   createEthAccount,
   transferBalanceToEth,
-  subToEth,
   deployFlipper,
   usingWeb3Http,
-  deployFungibleContract,
-  GAS_ARGS, itWeb3 } from './util/helpers';
+  itWeb3 } from './util/helpers';
 import waitNewBlocks from '../substrate/wait-new-blocks';
-import fungibleAbi from './fungibleAbi.json';
-import nonFungibleAbi from './nonFungibleAbi.json';
 
 describe.only('Sponsoring EVM contracts', () => {
-  itWeb3.skip('Sponsoring can be set by the address that has deployed the contract', async ({api, web3}) => {
+  itWeb3('Sponsoring can be set by the address that has deployed the contract', async ({api}) => {
     await usingWeb3Http(async web3Http => {
       const owner = await createEthAccountWithBalance(api, web3Http);
-      const fungible = await deployFungibleContract(web3Http, owner);
+      const flipper = await deployFlipper(web3Http, owner);
       await waitNewBlocks(api, 1);
       const helpers = contractHelpers(web3Http, owner);
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.false;
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
       await waitNewBlocks(api, 1);
-      await helpers.methods.toggleSponsoring(fungible.options.address, true).send({from: owner});
+      await helpers.methods.toggleSponsoring(flipper.options.address, true).send({from: owner});
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.true;
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
     });
   });
 
-  itWeb3.skip('Sponsoring cannot be set by the address that did not deployed the contract', async ({api, web3}) => {
+  itWeb3('Sponsoring cannot be set by the address that did not deployed the contract', async ({api}) => {
     await usingWeb3Http(async web3Http => {
       const owner = await createEthAccountWithBalance(api, web3Http);
       const notOwner = await createEthAccountWithBalance(api, web3Http);
-      const fungible = await deployFungibleContract(web3Http, owner);
+      const flipper = await deployFlipper(web3Http, owner);
       await waitNewBlocks(api, 1);
       const helpers = contractHelpers(web3Http, owner);
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.false;
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
       await waitNewBlocks(api, 1);
       await expect(helpers.methods.toggleSponsoring(notOwner, true).send({from: notOwner})).to.rejected;
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.false;
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
+    });
+  });
+
+  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should decrease', async ({api, web3}) => {
+    await usingWeb3Http(async web3Http => {
+      const alice = privateKey('//Alice');
+
+      const owner = await createEthAccountWithBalance(api, web3Http);
+      const caller = createEthAccount(web3Http);
+      const originalCallerBalance = await web3.eth.getBalance(caller);
+      expect(originalCallerBalance).to.be.equal('0');
+
+      const flipper = await deployFlipper(web3Http, owner);
+      await waitNewBlocks(api, 1);
+      
+      const helpers = contractHelpers(web3Http, owner);
+      await helpers.methods.toggleAllowlist(flipper.options.address, true).send({ from: owner });
+      await waitNewBlocks(api, 1);
+      await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({ from: owner });
+      await waitNewBlocks(api, 1);
+
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
+      await helpers.methods.toggleSponsoring(flipper.options.address, true).send({from: owner});
+      await waitNewBlocks(api, 1);
+      await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
+      await waitNewBlocks(api, 1);
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
+
+      await transferBalanceToEth(api, alice, flipper.options.address);
+      await waitNewBlocks(api, 2);
+
+      const originalFlipperBalance = await web3.eth.getBalance(flipper.options.address);
+      expect(originalFlipperBalance).to.be.not.equal('0');
+
+      await flipper.methods.flip().send({ from: caller });
+      await waitNewBlocks(api, 1);
+      expect(await flipper.methods.getValue().call()).to.be.true;
+
+      // Balance should be taken from flipper instead of caller
+      const balanceAfter = await web3.eth.getBalance(flipper.options.address);
+      expect(+balanceAfter).to.be.lessThan(+originalFlipperBalance);
     });
   });
 
-  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works', async ({api, web3}) => {
+  itWeb3('Sponsoring is set, an address that has UNQ can send a transaction and it works. User balance should not change', async ({api, web3}) => {
     await usingWeb3Http(async web3Http => {
       const alice = privateKey('//Alice');
-      const bob = privateKey('//Bob');
-      const collection = await createCollectionExpectSuccess({
-        mode: { type: 'Fungible', decimalPoints: 0 },
-      });
-      await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, alice.address);
+
       const owner = await createEthAccountWithBalance(api, web3Http);
-      const notOwner = await createEthAccountWithBalance(api, web3Http);
-      await transferExpectSuccess(collection, 0, alice, { ethereum: notOwner } , 200, 'Fungible');
-      const address = collectionIdToAddress(collection);
-      const fungible = await deployFungibleContract(web3Http, address);
-      await transferBalanceToEth(api, alice, fungible.options.address);
+      const caller = createEthAccount(web3Http);
+      const originalCallerBalance = await web3.eth.getBalance(caller);
+      expect(originalCallerBalance).to.be.equal('0');
+
+      const flipper = await deployFlipper(web3Http, owner);
+      await waitNewBlocks(api, 1);
+      
+      const helpers = contractHelpers(web3Http, owner);
+      await helpers.methods.toggleAllowlist(flipper.options.address, true).send({ from: owner });
       await waitNewBlocks(api, 1);
-      const balanceBefore = await web3.eth.getBalance(fungible.options.address);
+      await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({ from: owner });
+      await waitNewBlocks(api, 1);
 
-      const helpers = contractHelpers(web3Http, address);
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
+      await helpers.methods.toggleSponsoring(flipper.options.address, true).send({from: owner});
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.false;
+      await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
       await waitNewBlocks(api, 1);
-      await helpers.methods.toggleSponsoring(fungible.options.address, true).send({from: owner});
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
+
+      await transferBalanceToEth(api, alice, flipper.options.address);
+      await waitNewBlocks(api, 2);
+
+      const originalFlipperBalance = await web3.eth.getBalance(flipper.options.address);
+      expect(originalFlipperBalance).to.be.not.equal('0');
+
+      await flipper.methods.flip().send({ from: caller });
       await waitNewBlocks(api, 1);
-      expect(await helpers.methods.sponsoringEnabled(fungible.options.address).call()).to.be.true;
+      expect(await flipper.methods.getValue().call()).to.be.true;
 
-//      await fungible.methods.approve(owner, 50).send({ from: owner });
-      await fungible.methods.transferFrom(notOwner, owner, 50).send({ from: notOwner });
-      const balanceAfter = await web3.eth.getBalance(fungible.options.address);
-      expect(+balanceAfter).to.lessThan(+balanceBefore);
+      expect(await web3.eth.getBalance(caller)).to.be.equals(originalCallerBalance);
     });
   });
 
+  itWeb3('Sponsoring is limited, with setContractRateLimit. The limitation is working if transactions are sent more often, the sender pays the commission.', async ({api, web3}) => {
+    await usingWeb3Http(async web3Http => {
+      const alice = privateKey('//Alice');
+
+      const owner = await createEthAccountWithBalance(api, web3Http);
+      const caller = await createEthAccountWithBalance(api, web3Http);
+      const originalCallerBalance = await web3.eth.getBalance(caller);
+
+      const flipper = await deployFlipper(web3Http, owner);
+      await waitNewBlocks(api, 1);
+      
+      const helpers = contractHelpers(web3Http, owner);
+      await helpers.methods.toggleAllowlist(flipper.options.address, true).send({ from: owner });
+      await waitNewBlocks(api, 1);
+      await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({ from: owner });
+      await waitNewBlocks(api, 1);
+
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
+      await helpers.methods.toggleSponsoring(flipper.options.address, true).send({from: owner});
+      await waitNewBlocks(api, 1);
+      await helpers.methods.setSponsoringRateLimit(flipper.options.address, 10).send({from: owner});
+      await waitNewBlocks(api, 1);
+      expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
+
+      await transferBalanceToEth(api, alice, flipper.options.address);
+      await waitNewBlocks(api, 2);
+
+      const originalFlipperBalance = await web3.eth.getBalance(flipper.options.address);
+      expect(originalFlipperBalance).to.be.not.equal('0');
+
+      await flipper.methods.flip().send({ from: caller });
+      await waitNewBlocks(api, 1);
+      expect(await flipper.methods.getValue().call()).to.be.true;
+      expect(await web3.eth.getBalance(caller)).to.be.equals(originalCallerBalance);
+
+      await flipper.methods.flip().send({ from: caller });
+      await waitNewBlocks(api, 1);
+      expect(await web3.eth.getBalance(caller)).to.be.not.equals(originalCallerBalance);
+    });
+  });
 });
deletedtests/src/eth/util/ERC721.soldiffbeforeafterboth
--- a/tests/src/eth/util/ERC721.sol
+++ /dev/null
@@ -1,159 +0,0 @@
-contract ERC721 {
-    uint8 _dummy = 0;
-    address _dummy_addr = 0x0000000000000000000000000000000000000000;
-    string _dummy_string = "";
-    string stub_error =
-        "this contract does not exists, code for collections is implemented at pallet side";
-
-    event Transfer(
-        address indexed from,
-        address indexed to,
-        uint256 indexed tokenId
-    );
-
-    event Approval(
-        address indexed owner,
-        address indexed approved,
-        uint256 indexed tokenId
-    );
-
-    event ApprovalForAll(
-        address indexed owner,
-        address indexed operator,
-        bool approved
-    );
-
-	// 0x18160ddd
-    function totalSupply() external view returns (uint256) {
-        require(false, stub_error);
-        return 0;
-    }
-
-    function name() external view returns (string memory res_name) {
-        require(false, stub_error);
-        res_name = _dummy_string;
-    }
-
-    function symbol() external view returns (string memory res_symbol) {
-        require(false, stub_error);
-        res_symbol = _dummy_string;
-    }
-
-    function tokenURI(uint256 tokenId) external view returns (string memory) {
-        require(false, stub_error);
-        tokenId;
-        return _dummy_string;
-    }
-
-    function tokenByIndex(uint256 index) external view returns (uint256) {
-        require(false, stub_error);
-        index;
-		return 0;
-    }
-
-    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256) {
-        require(false, stub_error);
-		owner;
-		index;
-		return 0;
-    }
-
-    // 0x70a08231
-    function balanceOf(address owner) external view returns (uint256) {
-        require(false, stub_error);
-        owner;
-        return 0;
-    }
-
-    // 0x6352211e
-    function ownerOf(uint256 tokenId) external view returns (address) {
-        require(false, stub_error);
-        tokenId;
-        return _dummy_addr;
-    }
-
-    // 0xb88d4fde
-    function safeTransferFrom(
-        address from,
-        address to,
-        uint256 tokenId,
-        bytes calldata data
-    ) external payable {
-        require(false, stub_error);
-        from;
-        to;
-        tokenId;
-        data;
-    }
-
-    // 0x42842e0e
-    function safeTransferFrom(
-        address from,
-        address to,
-        uint256 tokenId
-    ) external payable {
-        require(false, stub_error);
-        from;
-        to;
-        tokenId;
-    }
-
-    // 0x23b872dd
-    function transferFrom(
-        address from,
-        address to,
-        uint256 tokenId
-    ) external payable {
-        require(false, stub_error);
-        from;
-        to;
-        tokenId;
-    }
-
-    // 0x095ea7b3
-    function approve(address approved, uint256 tokenId) external payable {
-        require(false, stub_error);
-        approved;
-        tokenId;
-    }
-
-    // 0xa22cb465
-    function setApprovalForAll(address operator, bool approved) external {
-        require(false, stub_error);
-        operator;
-        approved;
-        _dummy = 0;
-    }
-
-    // 0x081812fc
-    function getApproved(uint256 tokenId) external view returns (address) {
-        require(false, stub_error);
-        tokenId;
-        return _dummy_addr;
-    }
-
-    // 0xe985e9c5
-    function isApprovedForAll(address owner, address operator)
-        external
-        view
-        returns (bool)
-    {
-        require(false, stub_error);
-        owner;
-        operator;
-        return false;
-    }
-
-    // 0x01ffc9a7
-    function supportsInterface(bytes4 interfaceID) public pure returns (bool) {
-        return
-            // ERC721
-            interfaceID == 0x80ac58cd ||
-            // ERC721Metadata
-            interfaceID == 0x5b5e139f ||
-            // ERC721Enumerable
-            interfaceID == 0x780e9d63 ||
-            // ERC165
-            interfaceID == 0x01ffc9a7;
-    }
-}
modifiedtests/src/eth/util/helpers.tsdiffbeforeafterboth
before · tests/src/eth/util/helpers.ts
1//2// This file is subject to the terms and conditions defined in3// file 'LICENSE', which is part of this source code package.4//56// eslint-disable-next-line @typescript-eslint/triple-slash-reference7/// <reference path="helpers.d.ts" />89import { ApiPromise } from '@polkadot/api';10import { addressToEvm, evmToAddress } from '@polkadot/util-crypto';11import Web3 from 'web3';12import usingApi, { submitTransactionAsync } from '../../substrate/substrate-api';13import { IKeyringPair } from '@polkadot/types/types';14import { expect } from 'chai';15import { getGenericResult } from '../../util/helpers';16import * as solc from 'solc';17import config from '../../config';18import privateKey from '../../substrate/privateKey';19import contractHelpersAbi from './contractHelpersAbi.json';20import fs from 'fs';2122export const GAS_ARGS = { gas: 0x1000000, gasPrice: '0x01' };2324let web3Connected = false;25export async function usingWeb3<T>(cb: (web3: Web3) => Promise<T> | T): Promise<T> {26  if (web3Connected) throw new Error('do not nest usingWeb3 calls');27  web3Connected = true;2829  const provider = new Web3.providers.WebsocketProvider(config.substrateUrl);30  const web3 = new Web3(provider);3132  try {33    return await cb(web3);34  } finally {35    // provider.disconnect(3000, 'normal disconnect');36    provider.connection.close();37    web3Connected = false;38  }39}4041type Web3HttpMarker = {web3Http: true};4243export async function usingWeb3Http<T>(cb: (web3: Web3 & Web3HttpMarker) => Promise<T> | T): Promise<T> {44  const provider = new Web3.providers.HttpProvider(config.frontierUrl);45  const web3: Web3 & Web3HttpMarker = new Web3(provider) as any;46  web3.web3Http = true;4748  return await cb(web3);49}5051export function collectionIdToAddress(address: number): string {52  if (address >= 0xffffffff || address < 0) throw new Error('id overflow');53  const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,54    address >> 24,55    (address >> 16) & 0xff,56    (address >> 8) & 0xff,57    address & 0xff,58  ]);59  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));60}6162export function createEthAccount(web3: Web3) {63  const account = web3.eth.accounts.create();64  web3.eth.accounts.wallet.add(account.privateKey);65  return account.address;66}6768export async function createEthAccountWithBalance(api: ApiPromise, web3: Web3) {69  const alice = privateKey('//Alice');70  const account = createEthAccount(web3);71  await transferBalanceToEth(api, alice, account);7273  return account;74}7576export async function transferBalanceToEth(api: ApiPromise, source: IKeyringPair, target: string, amount = 999999999999999) {77  const tx = api.tx.balances.transfer(evmToAddress(target), amount);78  const events = await submitTransactionAsync(source, tx);79  const result = getGenericResult(events);80  expect(result.success).to.be.true;81}8283export async function itWeb3(name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any, opts: { only?: boolean, skip?: boolean } = {}) {84  let i: any = it;85  if (opts.only) i = i.only;86  else if (opts.skip) i = i.skip;87  i(name, async () => {88    await usingApi(async api => {89      await usingWeb3(async web3 => {90        await cb({ api, web3 });91      });92    });93  });94}95itWeb3.only = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { only: true });96itWeb3.skip = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { skip: true });9798export async function generateSubstrateEthPair(web3: Web3) {99  const account = web3.eth.accounts.create();100  evmToAddress(account.address);101}102103type NormalizedEvent = {104    address: string,105    event: string,106    args: { [key: string]: string }107};108109export function normalizeEvents(events: any): NormalizedEvent[] {110  const output = [];111  for (const key of Object.keys(events)) {112    if (key.match(/^[0-9]+$/)) {113      output.push(events[key]);114    } else if (Array.isArray(events[key])) {115      output.push(...events[key]);116    } else {117      output.push(events[key]);118    }119  }120  output.sort((a, b) => a.logIndex - b.logIndex);121  return output.map(({ address, event, returnValues }) => {122    const args: { [key: string]: string } = {};123    for (const key of Object.keys(returnValues)) {124      if (!key.match(/^[0-9]+$/)) {125        args[key] = returnValues[key];126      }127    }128    return {129      address,130      event,131      args,132    };133  });134}135136export async function recordEvents(contract: any, action: () => Promise<void>): Promise<NormalizedEvent[]> {137  const out: any = [];138  contract.events.allEvents((_: any, event: any) => {139    out.push(event);140  });141  await action();142  return normalizeEvents(out);143}144145export function subToEth(eth: string): string {146  const bytes = addressToEvm(eth);147  const string = '0x' + Buffer.from(bytes).toString('hex');148  return Web3.utils.toChecksumAddress(string);149}150151export function compileContract(name: string, src: string) {152  const out = JSON.parse(solc.compile(JSON.stringify({153    language: 'Solidity',154    sources: {155      [`${name}.sol`]: {156        content: `157          // SPDX-License-Identifier: UNLICENSED158          pragma solidity ^0.8.6;159160          ${src}161        `,162      },163    },164    settings: {165      outputSelection: {166        '*': {167          '*': ['*'],168        },169      },170    },171  }))).contracts[`${name}.sol`][name];172173  return {174    abi: out.abi,175    object: '0x' + out.evm.bytecode.object,176  };177}178179export async function deployFungibleContract(web3: Web3 & Web3HttpMarker, deployer: string) {180181  const sol = fs.readFileSync(__dirname + '/ERC721.sol').toString();182183  const compiled = compileContract('ERC721', sol);184  const ERC721 = new web3.eth.Contract(compiled.abi, undefined, {185    data: compiled.object,186    from: deployer,187    ...GAS_ARGS,188  });189  const fungible = await ERC721.deploy({ data: compiled.object }).send({from: deployer});190191  return fungible;192}193194export async function deployFlipper(web3: Web3 & Web3HttpMarker, deployer: string) {195  const compiled = compileContract('Flipper', `196    contract Flipper {197      bool value = false;198      function flip() public {199        value = !value;200      }201      function getValue() public view returns (bool) {202        return value;203      }204    }205  `);206  const Flipper = new web3.eth.Contract(compiled.abi, undefined, {207    data: compiled.object,208    from: deployer,209    ...GAS_ARGS,210  });211  const flipper = await Flipper.deploy({ data: compiled.object }).send({from: deployer});212213  return flipper;214}215216export async function deployCollector(web3: Web3 & Web3HttpMarker, deployer: string) {217  const compiled = compileContract('Collector', `218    contract Collector {219      uint256 collected;220      function giveMoney() public payable {221        collected += msg.value;222      }223      function getCollected() public view returns (uint256) {224        return collected;225      }226    }227  `);228  const Collector = new web3.eth.Contract(compiled.abi, undefined, {229    data: compiled.object,230    from: deployer,231    ...GAS_ARGS,232  });233  const collector = await Collector.deploy({ data: compiled.object }).send({ from: deployer });234235  return collector;236}237238export function contractHelpers(web3: Web3, caller: string) {239  return new web3.eth.Contract(contractHelpersAbi as any, '0x842899ECF380553E8a4de75bF534cdf6fBF64049', {from: caller, ...GAS_ARGS});240}
after · tests/src/eth/util/helpers.ts
1//2// This file is subject to the terms and conditions defined in3// file 'LICENSE', which is part of this source code package.4//56// eslint-disable-next-line @typescript-eslint/triple-slash-reference7/// <reference path="helpers.d.ts" />89import { ApiPromise } from '@polkadot/api';10import { addressToEvm, evmToAddress } from '@polkadot/util-crypto';11import Web3 from 'web3';12import usingApi, { submitTransactionAsync } from '../../substrate/substrate-api';13import { IKeyringPair } from '@polkadot/types/types';14import { expect } from 'chai';15import { getGenericResult } from '../../util/helpers';16import * as solc from 'solc';17import config from '../../config';18import privateKey from '../../substrate/privateKey';19import contractHelpersAbi from './contractHelpersAbi.json';2021export const GAS_ARGS = { gas: 0x1000000, gasPrice: '0x01' };2223let web3Connected = false;24export async function usingWeb3<T>(cb: (web3: Web3) => Promise<T> | T): Promise<T> {25  if (web3Connected) throw new Error('do not nest usingWeb3 calls');26  web3Connected = true;2728  const provider = new Web3.providers.WebsocketProvider(config.substrateUrl);29  const web3 = new Web3(provider);3031  try {32    return await cb(web3);33  } finally {34    // provider.disconnect(3000, 'normal disconnect');35    provider.connection.close();36    web3Connected = false;37  }38}3940type Web3HttpMarker = {web3Http: true};4142export async function usingWeb3Http<T>(cb: (web3: Web3 & Web3HttpMarker) => Promise<T> | T): Promise<T> {43  const provider = new Web3.providers.HttpProvider(config.frontierUrl);44  const web3: Web3 & Web3HttpMarker = new Web3(provider) as any;45  web3.web3Http = true;4647  return await cb(web3);48}4950export function collectionIdToAddress(address: number): string {51  if (address >= 0xffffffff || address < 0) throw new Error('id overflow');52  const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,53    address >> 24,54    (address >> 16) & 0xff,55    (address >> 8) & 0xff,56    address & 0xff,57  ]);58  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));59}6061export function createEthAccount(web3: Web3) {62  const account = web3.eth.accounts.create();63  web3.eth.accounts.wallet.add(account.privateKey);64  return account.address;65}6667export async function createEthAccountWithBalance(api: ApiPromise, web3: Web3) {68  const alice = privateKey('//Alice');69  const account = createEthAccount(web3);70  await transferBalanceToEth(api, alice, account);7172  return account;73}7475export async function transferBalanceToEth(api: ApiPromise, source: IKeyringPair, target: string, amount = 999999999999999) {76  const tx = api.tx.balances.transfer(evmToAddress(target), amount);77  const events = await submitTransactionAsync(source, tx);78  const result = getGenericResult(events);79  expect(result.success).to.be.true;80}8182export async function itWeb3(name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any, opts: { only?: boolean, skip?: boolean } = {}) {83  let i: any = it;84  if (opts.only) i = i.only;85  else if (opts.skip) i = i.skip;86  i(name, async () => {87    await usingApi(async api => {88      await usingWeb3(async web3 => {89        await cb({ api, web3 });90      });91    });92  });93}94itWeb3.only = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { only: true });95itWeb3.skip = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { skip: true });9697export async function generateSubstrateEthPair(web3: Web3) {98  const account = web3.eth.accounts.create();99  evmToAddress(account.address);100}101102type NormalizedEvent = {103    address: string,104    event: string,105    args: { [key: string]: string }106};107108export function normalizeEvents(events: any): NormalizedEvent[] {109  const output = [];110  for (const key of Object.keys(events)) {111    if (key.match(/^[0-9]+$/)) {112      output.push(events[key]);113    } else if (Array.isArray(events[key])) {114      output.push(...events[key]);115    } else {116      output.push(events[key]);117    }118  }119  output.sort((a, b) => a.logIndex - b.logIndex);120  return output.map(({ address, event, returnValues }) => {121    const args: { [key: string]: string } = {};122    for (const key of Object.keys(returnValues)) {123      if (!key.match(/^[0-9]+$/)) {124        args[key] = returnValues[key];125      }126    }127    return {128      address,129      event,130      args,131    };132  });133}134135export async function recordEvents(contract: any, action: () => Promise<void>): Promise<NormalizedEvent[]> {136  const out: any = [];137  contract.events.allEvents((_: any, event: any) => {138    out.push(event);139  });140  await action();141  return normalizeEvents(out);142}143144export function subToEth(eth: string): string {145  const bytes = addressToEvm(eth);146  const string = '0x' + Buffer.from(bytes).toString('hex');147  return Web3.utils.toChecksumAddress(string);148}149150export function compileContract(name: string, src: string) {151  const out = JSON.parse(solc.compile(JSON.stringify({152    language: 'Solidity',153    sources: {154      [`${name}.sol`]: {155        content: `156          // SPDX-License-Identifier: UNLICENSED157          pragma solidity ^0.8.6;158159          ${src}160        `,161      },162    },163    settings: {164      outputSelection: {165        '*': {166          '*': ['*'],167        },168      },169    },170  }))).contracts[`${name}.sol`][name];171172  return {173    abi: out.abi,174    object: '0x' + out.evm.bytecode.object,175  };176}177178// export async function deployFungibleContract(web3: Web3 & Web3HttpMarker, deployer: string) {179180//   const sol = fs.readFileSync(__dirname + '/ERC721.sol').toString();181182//   const compiled = compileContract('ERC721', sol);183//   const ERC721 = new web3.eth.Contract(compiled.abi, undefined, {184//     data: compiled.object,185//     from: deployer,186//     ...GAS_ARGS,187//   });188//   const fungible = await ERC721.deploy({ data: compiled.object }).send({from: deployer});189190//   return fungible;191// }192193export async function deployFlipper(web3: Web3 & Web3HttpMarker, deployer: string) {194  const compiled = compileContract('Flipper', `195    contract Flipper {196      bool value = false;197      function flip() public {198        value = !value;199      }200      function getValue() public view returns (bool) {201        return value;202      }203    }204  `);205  const Flipper = new web3.eth.Contract(compiled.abi, undefined, {206    data: compiled.object,207    from: deployer,208    ...GAS_ARGS,209  });210  const flipper = await Flipper.deploy({ data: compiled.object }).send({from: deployer});211212  return flipper;213}214215export async function deployCollector(web3: Web3 & Web3HttpMarker, deployer: string) {216  const compiled = compileContract('Collector', `217    contract Collector {218      uint256 collected;219      function giveMoney() public payable {220        collected += msg.value;221      }222      function getCollected() public view returns (uint256) {223        return collected;224      }225    }226  `);227  const Collector = new web3.eth.Contract(compiled.abi, undefined, {228    data: compiled.object,229    from: deployer,230    ...GAS_ARGS,231  });232  const collector = await Collector.deploy({ data: compiled.object }).send({ from: deployer });233234  return collector;235}236237export function contractHelpers(web3: Web3, caller: string) {238  return new web3.eth.Contract(contractHelpersAbi as any, '0x842899ECF380553E8a4de75bF534cdf6fBF64049', {from: caller, ...GAS_ARGS});239}