diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml index 502160fa820..03f14e9993c 100644 --- a/.github/workflows/test.yml +++ b/.github/workflows/test.yml @@ -26,11 +26,18 @@ jobs: if: steps.cache.outputs.cache-hit != 'true' - run: npm run lint - run: npm run test + env: + FORCE_COLOR: 1 + ENABLE_GAS_REPORT: 1 + - name: Print gas report + run: cat gas-report.txt coverage: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 + with: + fetch-depth: 2 - uses: actions/setup-node@v2 with: node-version: 10.x diff --git a/CHANGELOG.md b/CHANGELOG.md index cdc5834e927..38a94bdc263 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,8 +2,10 @@ ## Unreleased -* Now targeting the 0.8.x line of Solidity compilers. For 0.6.x (resp 0.7.x) support, use version 3.4.0 (resp 3.4.0-solc-0.7) of OpenZeppelin. -* `Context`: making `_msgData` return `bytes calldata` instead of `bytes memory` ([#2492](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2492)) + * Now targeting the 0.8.x line of Solidity compilers. For 0.6.x (resp 0.7.x) support, use version 3.4.0 (resp 3.4.0-solc-0.7) of OpenZeppelin. + * `Context`: making `_msgData` return `bytes calldata` instead of `bytes memory` ([#2492](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2492)) + * `ERC20`: Removed the `_setDecimals` function and the storage slot associated to decimals. ([#2502](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2502)) + * `Strings`: addition of a `toHexString` function. ([#2504](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2504)) ## 3.4.0 (2021-02-02) diff --git a/contracts/mocks/ERC20DecimalsMock.sol b/contracts/mocks/ERC20DecimalsMock.sol index 141daf758ab..ef48eb1da76 100644 --- a/contracts/mocks/ERC20DecimalsMock.sol +++ b/contracts/mocks/ERC20DecimalsMock.sol @@ -5,7 +5,13 @@ pragma solidity ^0.8.0; import "../token/ERC20/ERC20.sol"; contract ERC20DecimalsMock is ERC20 { - constructor (string memory name, string memory symbol, uint8 decimals) ERC20(name, symbol) { - _setupDecimals(decimals); + uint8 immutable private _decimals; + + constructor (string memory name_, string memory symbol_, uint8 decimals_) ERC20(name_, symbol_) { + _decimals = decimals_; + } + + function decimals() public view virtual override returns (uint8) { + return _decimals; } } diff --git a/contracts/mocks/StringsMock.sol b/contracts/mocks/StringsMock.sol index f395831e347..3cc396baca9 100644 --- a/contracts/mocks/StringsMock.sol +++ b/contracts/mocks/StringsMock.sol @@ -8,4 +8,10 @@ contract StringsMock { function fromUint256(uint256 value) public pure returns (string memory) { return Strings.toString(value); } + function fromUint256Hex(uint256 value) public pure returns (string memory) { + return Strings.toHexString(value); + } + function fromUint256HexFixed(uint256 value, uint256 length) public pure returns (string memory) { + return Strings.toHexString(value, length); + } } diff --git a/contracts/token/ERC1155/ERC1155.sol b/contracts/token/ERC1155/ERC1155.sol index 12cece9a025..a618f0da024 100644 --- a/contracts/token/ERC1155/ERC1155.sol +++ b/contracts/token/ERC1155/ERC1155.sol @@ -140,8 +140,9 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data); - require(_balances[id][from] >= amount, "ERC1155: insufficient balance for transfer"); - _balances[id][from] -= amount; + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); + _balances[id][from] = fromBalance - amount; _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); @@ -178,8 +179,9 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { uint256 id = ids[i]; uint256 amount = amounts[i]; - require(_balances[id][from] >= amount, "ERC1155: insufficient balance for transfer"); - _balances[id][from] -= amount; + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); + _balances[id][from] = fromBalance - amount; _balances[id][to] += amount; } @@ -276,8 +278,9 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { _beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), ""); - require(_balances[id][account] >= amount, "ERC1155: burn amount exceeds balance"); - _balances[id][account] -= amount; + uint256 accountBalance = _balances[id][account]; + require(accountBalance >= amount, "ERC1155: burn amount exceeds balance"); + _balances[id][account] = accountBalance - amount; emit TransferSingle(operator, account, address(0), id, amount); } @@ -301,8 +304,9 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { uint256 id = ids[i]; uint256 amount = amounts[i]; - require(_balances[id][account] >= amount, "ERC1155: burn amount exceeds balance"); - _balances[id][account] -= amount; + uint256 accountBalance = _balances[id][account]; + require(accountBalance >= amount, "ERC1155: burn amount exceeds balance"); + _balances[id][account] = accountBalance - amount; } emit TransferBatch(operator, account, address(0), ids, amounts); diff --git a/contracts/token/ERC20/ERC20.sol b/contracts/token/ERC20/ERC20.sol index 03515b92c87..188a834da27 100644 --- a/contracts/token/ERC20/ERC20.sol +++ b/contracts/token/ERC20/ERC20.sol @@ -38,13 +38,12 @@ contract ERC20 is Context, IERC20 { string private _name; string private _symbol; - uint8 private _decimals; /** - * @dev Sets the values for {name} and {symbol}, initializes {decimals} with - * a default value of 18. + * @dev Sets the values for {name} and {symbol}. * - * To select a different value for {decimals}, use {_setupDecimals}. + * The defaut value of {decimals} is 18. To select a different value for + * {decimals} you should overload it. * * All three of these values are immutable: they can only be set once during * construction. @@ -52,7 +51,6 @@ contract ERC20 is Context, IERC20 { constructor (string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; - _decimals = 18; } /** @@ -76,15 +74,15 @@ contract ERC20 is Context, IERC20 { * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between - * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is - * called. + * Ether and Wei. This is the value {ERC20} uses, unless this function is + * overloaded; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { - return _decimals; + return 18; } /** @@ -149,8 +147,9 @@ contract ERC20 is Context, IERC20 { function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); - require(_allowances[sender][_msgSender()] >= amount, "ERC20: transfer amount exceeds allowance"); - _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount); + uint256 currentAllowance = _allowances[sender][_msgSender()]; + require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); + _approve(sender, _msgSender(), currentAllowance - amount); return true; } @@ -187,8 +186,9 @@ contract ERC20 is Context, IERC20 { * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { - require(_allowances[_msgSender()][spender] >= subtractedValue, "ERC20: decreased allowance below zero"); - _approve(_msgSender(), spender, _allowances[_msgSender()][spender] - subtractedValue); + uint256 currentAllowance = _allowances[_msgSender()][spender]; + require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); + _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } @@ -213,8 +213,9 @@ contract ERC20 is Context, IERC20 { _beforeTokenTransfer(sender, recipient, amount); - require(_balances[sender] >= amount, "ERC20: transfer amount exceeds balance"); - _balances[sender] -= amount; + uint256 senderBalance = _balances[sender]; + require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); + _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); @@ -255,8 +256,9 @@ contract ERC20 is Context, IERC20 { _beforeTokenTransfer(account, address(0), amount); - require(_balances[account] >= amount, "ERC20: burn amount exceeds balance"); - _balances[account] -= amount; + uint256 accountBalance = _balances[account]; + require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); + _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); @@ -283,17 +285,6 @@ contract ERC20 is Context, IERC20 { emit Approval(owner, spender, amount); } - /** - * @dev Sets {decimals} to a value other than the default one of 18. - * - * WARNING: This function should only be called from the constructor. Most - * applications that interact with token contracts will not expect - * {decimals} to ever change, and may work incorrectly if it does. - */ - function _setupDecimals(uint8 decimals_) internal virtual { - _decimals = decimals_; - } - /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. diff --git a/contracts/token/ERC20/ERC20Burnable.sol b/contracts/token/ERC20/ERC20Burnable.sol index 73b060cc905..7bdff6fa246 100644 --- a/contracts/token/ERC20/ERC20Burnable.sol +++ b/contracts/token/ERC20/ERC20Burnable.sol @@ -32,8 +32,9 @@ abstract contract ERC20Burnable is Context, ERC20 { * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { - require(allowance(account, _msgSender()) >= amount, "ERC20: burn amount exceeds allowance"); - _approve(account, _msgSender(), allowance(account, _msgSender()) - amount); + uint256 currentAllowance = allowance(account, _msgSender()); + require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); + _approve(account, _msgSender(), currentAllowance - amount); _burn(account, amount); } } diff --git a/contracts/token/ERC777/ERC777.sol b/contracts/token/ERC777/ERC777.sol index be21bda10e4..d33a8a04d44 100644 --- a/contracts/token/ERC777/ERC777.sol +++ b/contracts/token/ERC777/ERC777.sol @@ -278,8 +278,9 @@ contract ERC777 is Context, IERC777, IERC20 { _move(spender, holder, recipient, amount, "", ""); - require(_allowances[holder][spender] >= amount, "ERC777: transfer amount exceeds allowance"); - _approve(holder, spender, _allowances[holder][spender] - amount); + uint256 currentAllowance = _allowances[holder][spender]; + require(currentAllowance >= amount, "ERC777: transfer amount exceeds allowance"); + _approve(holder, spender, currentAllowance - amount); _callTokensReceived(spender, holder, recipient, amount, "", "", false); @@ -385,8 +386,9 @@ contract ERC777 is Context, IERC777, IERC20 { _beforeTokenTransfer(operator, from, address(0), amount); // Update state variables - require(_balances[from] >= amount, "ERC777: burn amount exceeds balance"); - _balances[from] -= amount; + uint256 fromBalance = _balances[from]; + require(fromBalance >= amount, "ERC777: burn amount exceeds balance"); + _balances[from] = fromBalance - amount; _totalSupply -= amount; emit Burned(operator, from, amount, data, operatorData); @@ -405,8 +407,9 @@ contract ERC777 is Context, IERC777, IERC20 { { _beforeTokenTransfer(operator, from, to, amount); - require(_balances[from] >= amount, "ERC777: transfer amount exceeds balance"); - _balances[from] -= amount; + uint256 fromBalance = _balances[from]; + require(fromBalance >= amount, "ERC777: transfer amount exceeds balance"); + _balances[from] = fromBalance - amount; _balances[to] += amount; emit Sent(operator, from, to, amount, userData, operatorData); diff --git a/contracts/utils/Counters.sol b/contracts/utils/Counters.sol index c4ee7b71801..746a2631eca 100644 --- a/contracts/utils/Counters.sol +++ b/contracts/utils/Counters.sol @@ -23,10 +23,16 @@ library Counters { } function increment(Counter storage counter) internal { - counter._value += 1; + unchecked { + counter._value += 1; + } } function decrement(Counter storage counter) internal { - counter._value = counter._value - 1; + uint256 value = counter._value; + require(value > 0, "Counter: decrement overflow"); + unchecked { + counter._value = value - 1; + } } } diff --git a/contracts/utils/Strings.sol b/contracts/utils/Strings.sol index 56c27611185..dac2f35e7e6 100644 --- a/contracts/utils/Strings.sol +++ b/contracts/utils/Strings.sol @@ -6,8 +6,10 @@ pragma solidity ^0.8.0; * @dev String operations. */ library Strings { + bytes16 private constant alphabet = "0123456789abcdef"; + /** - * @dev Converts a `uint256` to its ASCII `string` representation. + * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence @@ -23,12 +25,43 @@ library Strings { temp /= 10; } bytes memory buffer = new bytes(digits); - uint256 index = digits; - temp = value; + while (value != 0) { + digits -= 1; + buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); + value /= 10; + } + return string(buffer); + } + + /** + * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. + */ + function toHexString(uint256 value) internal pure returns (string memory) { + if (value == 0) { + return "0x00"; + } + uint256 temp = value; + uint256 length = 0; while (temp != 0) { - buffer[--index] = bytes1(uint8(48 + uint256(temp % 10))); - temp /= 10; + length++; + temp >>= 8; + } + return toHexString(value, length); + } + + /** + * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. + */ + function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { + bytes memory buffer = new bytes(2 * length + 2); + buffer[0] = "0"; + buffer[1] = "x"; + for (uint256 i = 2 * length + 1; i > 1; --i) { + buffer[i] = alphabet[value & 0xf]; + value >>= 4; } + require(value == 0, "Strings: hex length insufficient"); return string(buffer); } + } diff --git a/hardhat.config.js b/hardhat.config.js index 627b0060d03..2dad03553ad 100644 --- a/hardhat.config.js +++ b/hardhat.config.js @@ -4,20 +4,25 @@ const path = require('path'); require('@nomiclabs/hardhat-truffle5'); require('@nomiclabs/hardhat-solhint'); require('solidity-coverage'); +require('hardhat-gas-reporter'); for (const f of fs.readdirSync(path.join(__dirname, 'hardhat'))) { require(path.join(__dirname, 'hardhat', f)); } +const enableGasReport = !!process.env.ENABLE_GAS_REPORT; + /** * @type import('hardhat/config').HardhatUserConfig */ module.exports = { - solidity: '0.8.0', - settings: { - optimizer: { - enabled: false, - runs: 200, + solidity: { + version: '0.8.0', + settings: { + optimizer: { + enabled: enableGasReport, + runs: 200, + }, }, }, networks: { @@ -25,4 +30,9 @@ module.exports = { blockGasLimit: 10000000, }, }, + gasReporter: { + enable: enableGasReport, + currency: 'USD', + outputFile: process.env.CI ? 'gas-report.txt' : undefined, + }, }; diff --git a/package-lock.json b/package-lock.json index 4ddd379917a..aefe17d6e59 100644 --- a/package-lock.json +++ b/package-lock.json @@ -5,12 +5,12 @@ "requires": true, "dependencies": { "@babel/code-frame": { - "version": "7.12.11", - "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.11.tgz", - "integrity": "sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==", + "version": "7.12.13", + "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz", + "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==", "dev": true, "requires": { - "@babel/highlight": "^7.10.4" + "@babel/highlight": "^7.12.13" } }, "@babel/helper-validator-identifier": { @@ -20,12 +20,12 @@ "dev": true }, "@babel/highlight": { - "version": "7.10.4", - "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.10.4.tgz", - "integrity": "sha512-i6rgnR/YgPEQzZZnbTHHuZdlE8qyoBNalD6F+q4vAFlcMEcqmkoG+mPqJYJCo63qPf74+Y1UZsl3l6f7/RIkmA==", + "version": "7.12.13", + "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.12.13.tgz", + "integrity": "sha512-kocDQvIbgMKlWxXe9fof3TQ+gkIPOUSEYhJjqUjvKMez3krV7vbzYCDq39Oj11UAVK7JqPVGQPlgE85dPNlQww==", "dev": true, "requires": { - "@babel/helper-validator-identifier": "^7.10.4", + "@babel/helper-validator-identifier": "^7.12.11", "chalk": "^2.0.0", "js-tokens": "^4.0.0" } @@ -48,9 +48,9 @@ } }, "@ethersproject/abstract-provider": { - "version": "5.0.8", - "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.0.8.tgz", - "integrity": "sha512-fqJXkewcGdi8LogKMgRyzc/Ls2js07yor7+g9KfPs09uPOcQLg7cc34JN+lk34HH9gg2HU0DIA5797ZR8znkfw==", + "version": "5.0.9", + "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.0.9.tgz", + "integrity": "sha512-X9fMkqpeu9ayC3JyBkeeZhn35P4xQkpGX/l+FrxDtEW9tybf/UWXSMi8bGThpPtfJ6q6U2LDetXSpSwK4TfYQQ==", "dev": true, "requires": { "@ethersproject/bignumber": "^5.0.13", @@ -63,9 +63,9 @@ } }, "@ethersproject/abstract-signer": { - "version": "5.0.11", - "resolved": "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.0.11.tgz", - "integrity": "sha512-RKOgPSEYafknA62SrD3OCK42AllHE4YBfKYXyQeM+sBP7Nq3X5FpzeoY4uzC43P4wIhmNoTHCKQuwnX7fBqb6Q==", + "version": "5.0.12", + "resolved": "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.0.12.tgz", + "integrity": "sha512-qt4jAEzQGPZ31My1gFGPzzJHJveYhVycW7RHkuX0W8fvMdg7wr0uvP7mQEptMVrb+jYwsVktCf6gBGwWDpFiTA==", "dev": true, "requires": { "@ethersproject/abstract-provider": "^5.0.8", @@ -76,9 +76,9 @@ } }, "@ethersproject/address": { - "version": "5.0.9", - "resolved": "https://registry.npmjs.org/@ethersproject/address/-/address-5.0.9.tgz", - "integrity": "sha512-gKkmbZDMyGbVjr8nA5P0md1GgESqSGH7ILIrDidPdNXBl4adqbuA3OAuZx/O2oGpL6PtJ9BDa0kHheZ1ToHU3w==", + "version": "5.0.10", + "resolved": "https://registry.npmjs.org/@ethersproject/address/-/address-5.0.10.tgz", + "integrity": "sha512-70vqESmW5Srua1kMDIN6uVfdneZMaMyRYH4qPvkAXGkbicrCOsA9m01vIloA4wYiiF+HLEfL1ENKdn5jb9xiAw==", "dev": true, "requires": { "@ethersproject/bignumber": "^5.0.13", @@ -89,18 +89,18 @@ } }, "@ethersproject/base64": { - "version": "5.0.7", - "resolved": "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.0.7.tgz", - "integrity": "sha512-S5oh5DVfCo06xwJXT8fQC68mvJfgScTl2AXvbYMsHNfIBTDb084Wx4iA9MNlEReOv6HulkS+gyrUM/j3514rSw==", + "version": "5.0.8", + "resolved": "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.0.8.tgz", + "integrity": "sha512-PNbpHOMgZpZ1skvQl119pV2YkCPXmZTxw+T92qX0z7zaMFPypXWTZBzim+hUceb//zx4DFjeGT4aSjZRTOYThg==", "dev": true, "requires": { "@ethersproject/bytes": "^5.0.9" } }, "@ethersproject/basex": { - "version": "5.0.7", - "resolved": "https://registry.npmjs.org/@ethersproject/basex/-/basex-5.0.7.tgz", - "integrity": "sha512-OsXnRsujGmYD9LYyJlX+cVe5KfwgLUbUJrJMWdzRWogrygXd5HvGd7ygX1AYjlu1z8W/+t2FoQnczDR/H2iBjA==", + "version": "5.0.8", + "resolved": "https://registry.npmjs.org/@ethersproject/basex/-/basex-5.0.8.tgz", + "integrity": "sha512-PCVKZIShBQUqAXjJSvaCidThPvL0jaaQZcewJc0sf8Xx05BizaOS8r3jdPdpNdY+/qZtRDqwHTSKjvR/xssyLQ==", "dev": true, "requires": { "@ethersproject/bytes": "^5.0.9", @@ -108,9 +108,9 @@ } }, "@ethersproject/bignumber": { - "version": "5.0.13", - "resolved": "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.0.13.tgz", - "integrity": "sha512-b89bX5li6aK492yuPP5mPgRVgIxxBP7ksaBtKX5QQBsrZTpNOjf/MR4CjcUrAw8g+RQuD6kap9lPjFgY4U1/5A==", + "version": "5.0.14", + "resolved": "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.0.14.tgz", + "integrity": 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@@ }, "dependencies": { "@types/node": { - "version": "12.19.15", - "resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz", - "integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw==", + "version": "12.19.16", + "resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz", + "integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q==", "dev": true } } diff --git a/package.json b/package.json index ce94c7bda62..8b86592cc78 100644 --- a/package.json +++ b/package.json @@ -24,7 +24,8 @@ "prepack": "scripts/prepack.sh", "release": "scripts/release/release.sh", "version": "scripts/release/version.sh", - "test": "hardhat test" + "test": "hardhat test", + "gas-report": "env ENABLE_GAS_REPORT=1 npm run test" }, "repository": { "type": "git", @@ -64,6 +65,7 @@ "ethereumjs-util": "^7.0.7", "ethereumjs-wallet": "^1.0.1", "hardhat": "^2.0.6", + "hardhat-gas-reporter": "^1.0.4", "lodash.startcase": "^4.4.0", "lodash.zip": "^4.2.0", "micromatch": "^4.0.2", diff --git a/test/utils/Counters.test.js b/test/utils/Counters.test.js index 5e6424e0e63..90a1ae8453e 100644 --- a/test/utils/Counters.test.js +++ b/test/utils/Counters.test.js @@ -43,7 +43,7 @@ contract('Counters', function (accounts) { it('reverts if the current value is 0', async function () { await this.counter.decrement(); - await expectRevert.unspecified(this.counter.decrement()); + await expectRevert(this.counter.decrement(), 'Counter: decrement overflow'); }); }); context('after incremented to 3', function () { diff --git a/test/utils/Strings.test.js b/test/utils/Strings.test.js index 8c16378b1d7..5128ce577dc 100644 --- a/test/utils/Strings.test.js +++ b/test/utils/Strings.test.js @@ -1,4 +1,4 @@ -const { constants } = require('@openzeppelin/test-helpers'); +const { constants, expectRevert } = require('@openzeppelin/test-helpers'); const { expect } = require('chai'); @@ -9,7 +9,7 @@ contract('Strings', function (accounts) { this.strings = await StringsMock.new(); }); - describe('from uint256', function () { + describe('from uint256 - decimal format', function () { it('converts 0', async function () { expect(await this.strings.fromUint256(0)).to.equal('0'); }); @@ -22,4 +22,38 @@ contract('Strings', function (accounts) { expect(await this.strings.fromUint256(constants.MAX_UINT256)).to.equal(constants.MAX_UINT256.toString()); }); }); + + describe('from uint256 - hex format', function () { + it('converts 0', async function () { + expect(await this.strings.fromUint256Hex(0)).to.equal('0x00'); + }); + + it('converts a positive number', async function () { + expect(await this.strings.fromUint256Hex(0x4132)).to.equal('0x4132'); + }); + + it('converts MAX_UINT256', async function () { + expect(await this.strings.fromUint256Hex(constants.MAX_UINT256)) + .to.equal(web3.utils.toHex(constants.MAX_UINT256)); + }); + }); + + describe('from uint256 - fixed hex format', function () { + it('converts a positive number (long)', async function () { + expect(await this.strings.fromUint256HexFixed(0x4132, 32)) + .to.equal('0x0000000000000000000000000000000000000000000000000000000000004132'); + }); + + it('converts a positive number (short)', async function () { + await expectRevert( + this.strings.fromUint256HexFixed(0x4132, 1), + 'Strings: hex length insufficient', + ); + }); + + it('converts MAX_UINT256', async function () { + expect(await this.strings.fromUint256HexFixed(constants.MAX_UINT256, 32)) + .to.equal(web3.utils.toHex(constants.MAX_UINT256)); + }); + }); });