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Diffstat (limited to 'contracts/utils')
20 files changed, 0 insertions, 2301 deletions
diff --git a/contracts/utils/CHANGELOG.json b/contracts/utils/CHANGELOG.json deleted file mode 100644 index 724ab1e4a..000000000 --- a/contracts/utils/CHANGELOG.json +++ /dev/null @@ -1,56 +0,0 @@ -[ - { - "version": "2.0.0", - "changes": [ - { - "note": "Upgrade the bignumber.js to v8.0.2", - "pr": 1517 - } - ] - }, - { - "timestamp": 1547747677, - "version": "1.0.6", - "changes": [ - { - "note": "Dependencies updated" - } - ] - }, - { - "timestamp": 1547561734, - "version": "1.0.5", - "changes": [ - { - "note": "Dependencies updated" - } - ] - }, - { - "timestamp": 1547225310, - "version": "1.0.4", - "changes": [ - { - "note": "Dependencies updated" - } - ] - }, - { - "timestamp": 1547040760, - "version": "1.0.3", - "changes": [ - { - "note": "Dependencies updated" - } - ] - }, - { - "timestamp": 1544741676, - "version": "1.0.2", - "changes": [ - { - "note": "Dependencies updated" - } - ] - } -] diff --git a/contracts/utils/CHANGELOG.md b/contracts/utils/CHANGELOG.md deleted file mode 100644 index 59d0804da..000000000 --- a/contracts/utils/CHANGELOG.md +++ /dev/null @@ -1,26 +0,0 @@ -<!-- -changelogUtils.file is auto-generated using the monorepo-scripts package. Don't edit directly. -Edit the package's CHANGELOG.json file only. ---> - -CHANGELOG - -## v1.0.6 - _January 17, 2019_ - - * Dependencies updated - -## v1.0.5 - _January 15, 2019_ - - * Dependencies updated - -## v1.0.4 - _January 11, 2019_ - - * Dependencies updated - -## v1.0.3 - _January 9, 2019_ - - * Dependencies updated - -## v1.0.2 - _December 13, 2018_ - - * Dependencies updated diff --git a/contracts/utils/README.md b/contracts/utils/README.md deleted file mode 100644 index 2f872ddb5..000000000 --- a/contracts/utils/README.md +++ /dev/null @@ -1,70 +0,0 @@ -## Contracts utils - -Smart contracts utils used in the 0x protocol. - -## Usage - -Contracts can be found in the [contracts](./contracts) directory. The contents of this directory are broken down into the following subdirectories: - -- [utils](./contracts/utils) - - This directory contains libraries and utils. -- [test](./contracts/test) - - This directory contains mocks and other contracts that are used solely for testing contracts within the other directories. - -## Contributing - -We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository. - -For proposals regarding the 0x protocol's smart contract architecture, message format, or additional functionality, go to the [0x Improvement Proposals (ZEIPs)](https://github.com/0xProject/ZEIPs) repository and follow the contribution guidelines provided therein. - -Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started. - -### Install Dependencies - -If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them: - -```bash -yarn config set workspaces-experimental true -``` - -Then install dependencies - -```bash -yarn install -``` - -### Build - -To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory: - -```bash -PKG=@0x/contracts-utils yarn build -``` - -Or continuously rebuild on change: - -```bash -PKG=@0x/contracts-utils yarn watch -``` - -### Clean - -```bash -yarn clean -``` - -### Lint - -```bash -yarn lint -``` - -### Run Tests - -```bash -yarn test -``` - -#### Testing options - -Contracts testing options like coverage, profiling, revert traces or backing node choosing - are described [here](../TESTING.md). diff --git a/contracts/utils/compiler.json b/contracts/utils/compiler.json deleted file mode 100644 index 1524c1eaa..000000000 --- a/contracts/utils/compiler.json +++ /dev/null @@ -1,22 +0,0 @@ -{ - "artifactsDir": "./generated-artifacts", - "contractsDir": "./contracts", - "compilerSettings": { - "optimizer": { - "enabled": true, - "runs": 1000000 - }, - "outputSelection": { - "*": { - "*": [ - "abi", - "evm.bytecode.object", - "evm.bytecode.sourceMap", - "evm.deployedBytecode.object", - "evm.deployedBytecode.sourceMap" - ] - } - } - }, - "contracts": ["TestConstants", "TestLibBytes", "LibBytes", "Ownable", "IOwnable", "ReentrancyGuard", "SafeMath"] -} diff --git a/contracts/utils/contracts/test/TestConstants/TestConstants.sol b/contracts/utils/contracts/test/TestConstants/TestConstants.sol deleted file mode 100644 index 3c852173b..000000000 --- a/contracts/utils/contracts/test/TestConstants/TestConstants.sol +++ /dev/null @@ -1,57 +0,0 @@ -/* - - Copyright 2018 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity 0.4.24; - -import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; - - -// solhint-disable max-line-length -contract TestConstants { - - using LibBytes for bytes; - - bytes4 constant internal ERC20_PROXY_ID = bytes4(keccak256("ERC20Token(address)")); - - address constant internal KOVAN_ZRX_ADDRESS = 0x6Ff6C0Ff1d68b964901F986d4C9FA3ac68346570; - bytes constant internal KOVAN_ZRX_ASSET_DATA = "\xf4\x72\x61\xb0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x6f\xf6\xc0\xff\x1d\x68\xb9\x64\x90\x1f\x98\x6d\x4c\x9f\xa3\xac\x68\x34\x65\x70"; - - address constant internal MAINNET_ZRX_ADDRESS = 0xE41d2489571d322189246DaFA5ebDe1F4699F498; - bytes constant public MAINNET_ZRX_ASSET_DATA = "\xf4\x72\x61\xb0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe4\x1d\x24\x89\x57\x1d\x32\x21\x89\x24\x6d\xaf\xa5\xeb\xde\x1f\x46\x99\xf4\x98"; - - function assertValidZrxAssetData() - public - pure - returns (bool) - { - bytes memory kovanZrxAssetData = abi.encodeWithSelector(ERC20_PROXY_ID, KOVAN_ZRX_ADDRESS); - require( - kovanZrxAssetData.equals(KOVAN_ZRX_ASSET_DATA), - "INVALID_KOVAN_ZRX_ASSET_DATA" - ); - - bytes memory mainetZrxAssetData = abi.encodeWithSelector(ERC20_PROXY_ID, MAINNET_ZRX_ADDRESS); - require( - mainetZrxAssetData.equals(MAINNET_ZRX_ASSET_DATA), - "INVALID_MAINNET_ZRX_ASSET_DATA" - ); - - return true; - } -} -// solhint-enable max-line-length
\ No newline at end of file diff --git a/contracts/utils/contracts/test/TestLibBytes/TestLibBytes.sol b/contracts/utils/contracts/test/TestLibBytes/TestLibBytes.sol deleted file mode 100644 index 444a3e717..000000000 --- a/contracts/utils/contracts/test/TestLibBytes/TestLibBytes.sol +++ /dev/null @@ -1,269 +0,0 @@ -/* - - Copyright 2018 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity 0.4.24; - -import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol"; - - -contract TestLibBytes { - - using LibBytes for bytes; - - /// @dev Pops the last byte off of a byte array by modifying its length. - /// @param b Byte array that will be modified. - /// @return The byte that was popped off. - function publicPopLastByte(bytes memory b) - public - pure - returns (bytes memory, bytes1 result) - { - result = b.popLastByte(); - return (b, result); - } - - /// @dev Pops the last 20 bytes off of a byte array by modifying its length. - /// @param b Byte array that will be modified. - /// @return The 20 byte address that was popped off. - function publicPopLast20Bytes(bytes memory b) - public - pure - returns (bytes memory, address result) - { - result = b.popLast20Bytes(); - return (b, result); - } - - /// @dev Tests equality of two byte arrays. - /// @param lhs First byte array to compare. - /// @param rhs Second byte array to compare. - /// @return True if arrays are the same. False otherwise. - function publicEquals(bytes memory lhs, bytes memory rhs) - public - pure - returns (bool equal) - { - equal = lhs.equals(rhs); - return equal; - } - - function publicEqualsPop1(bytes memory lhs, bytes memory rhs) - public - pure - returns (bool equal) - { - lhs.popLastByte(); - rhs.popLastByte(); - equal = lhs.equals(rhs); - return equal; - } - - /// @dev Performs a deep copy of a byte array onto another byte array of greater than or equal length. - /// @param dest Byte array that will be overwritten with source bytes. - /// @param source Byte array to copy onto dest bytes. - function publicDeepCopyBytes( - bytes memory dest, - bytes memory source - ) - public - pure - returns (bytes memory) - { - LibBytes.deepCopyBytes(dest, source); - return dest; - } - - /// @dev Reads an address from a position in a byte array. - /// @param b Byte array containing an address. - /// @param index Index in byte array of address. - /// @return address from byte array. - function publicReadAddress( - bytes memory b, - uint256 index - ) - public - pure - returns (address result) - { - result = b.readAddress(index); - return result; - } - - /// @dev Writes an address into a specific position in a byte array. - /// @param b Byte array to insert address into. - /// @param index Index in byte array of address. - /// @param input Address to put into byte array. - function publicWriteAddress( - bytes memory b, - uint256 index, - address input - ) - public - pure - returns (bytes memory) - { - b.writeAddress(index, input); - return b; - } - - /// @dev Reads a bytes32 value from a position in a byte array. - /// @param b Byte array containing a bytes32 value. - /// @param index Index in byte array of bytes32 value. - /// @return bytes32 value from byte array. - function publicReadBytes32( - bytes memory b, - uint256 index - ) - public - pure - returns (bytes32 result) - { - result = b.readBytes32(index); - return result; - } - - /// @dev Writes a bytes32 into a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input bytes32 to put into byte array. - function publicWriteBytes32( - bytes memory b, - uint256 index, - bytes32 input - ) - public - pure - returns (bytes memory) - { - b.writeBytes32(index, input); - return b; - } - - /// @dev Reads a uint256 value from a position in a byte array. - /// @param b Byte array containing a uint256 value. - /// @param index Index in byte array of uint256 value. - /// @return uint256 value from byte array. - function publicReadUint256( - bytes memory b, - uint256 index - ) - public - pure - returns (uint256 result) - { - result = b.readUint256(index); - return result; - } - - /// @dev Writes a uint256 into a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input uint256 to put into byte array. - function publicWriteUint256( - bytes memory b, - uint256 index, - uint256 input - ) - public - pure - returns (bytes memory) - { - b.writeUint256(index, input); - return b; - } - - /// @dev Reads an unpadded bytes4 value from a position in a byte array. - /// @param b Byte array containing a bytes4 value. - /// @param index Index in byte array of bytes4 value. - /// @return bytes4 value from byte array. - function publicReadBytes4( - bytes memory b, - uint256 index - ) - public - pure - returns (bytes4 result) - { - result = b.readBytes4(index); - return result; - } - - /// @dev Reads nested bytes from a specific position. - /// @param b Byte array containing nested bytes. - /// @param index Index of nested bytes. - /// @return result Nested bytes. - function publicReadBytesWithLength( - bytes memory b, - uint256 index - ) - public - pure - returns (bytes memory result) - { - result = b.readBytesWithLength(index); - return result; - } - - /// @dev Inserts bytes at a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input bytes to insert. - /// @return b Updated input byte array - function publicWriteBytesWithLength( - bytes memory b, - uint256 index, - bytes memory input - ) - public - pure - returns (bytes memory) - { - b.writeBytesWithLength(index, input); - return b; - } - - /// @dev Copies a block of memory from one location to another. - /// @param mem Memory contents we want to apply memCopy to - /// @param dest Destination offset into <mem>. - /// @param source Source offset into <mem>. - /// @param length Length of bytes to copy from <source> to <dest> - /// @return mem Memory contents after calling memCopy. - function testMemcpy( - bytes mem, - uint256 dest, - uint256 source, - uint256 length - ) - public // not external, we need input in memory - pure - returns (bytes) - { - // Sanity check. Overflows are not checked. - require(source + length <= mem.length); - require(dest + length <= mem.length); - - // Get pointer to memory contents - uint256 offset = mem.contentAddress(); - - // Execute memCopy adjusted for memory array location - LibBytes.memCopy(offset + dest, offset + source, length); - - // Return modified memory contents - return mem; - } -} diff --git a/contracts/utils/contracts/utils/LibBytes/LibBytes.sol b/contracts/utils/contracts/utils/LibBytes/LibBytes.sol deleted file mode 100644 index 4ee6228d5..000000000 --- a/contracts/utils/contracts/utils/LibBytes/LibBytes.sol +++ /dev/null @@ -1,567 +0,0 @@ -/* - - Copyright 2018 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity ^0.4.24; - - -library LibBytes { - - using LibBytes for bytes; - - /// @dev Gets the memory address for a byte array. - /// @param input Byte array to lookup. - /// @return memoryAddress Memory address of byte array. This - /// points to the header of the byte array which contains - /// the length. - function rawAddress(bytes memory input) - internal - pure - returns (uint256 memoryAddress) - { - assembly { - memoryAddress := input - } - return memoryAddress; - } - - /// @dev Gets the memory address for the contents of a byte array. - /// @param input Byte array to lookup. - /// @return memoryAddress Memory address of the contents of the byte array. - function contentAddress(bytes memory input) - internal - pure - returns (uint256 memoryAddress) - { - assembly { - memoryAddress := add(input, 32) - } - return memoryAddress; - } - - /// @dev Copies `length` bytes from memory location `source` to `dest`. - /// @param dest memory address to copy bytes to. - /// @param source memory address to copy bytes from. - /// @param length number of bytes to copy. - function memCopy( - uint256 dest, - uint256 source, - uint256 length - ) - internal - pure - { - if (length < 32) { - // Handle a partial word by reading destination and masking - // off the bits we are interested in. - // This correctly handles overlap, zero lengths and source == dest - assembly { - let mask := sub(exp(256, sub(32, length)), 1) - let s := and(mload(source), not(mask)) - let d := and(mload(dest), mask) - mstore(dest, or(s, d)) - } - } else { - // Skip the O(length) loop when source == dest. - if (source == dest) { - return; - } - - // For large copies we copy whole words at a time. The final - // word is aligned to the end of the range (instead of after the - // previous) to handle partial words. So a copy will look like this: - // - // #### - // #### - // #### - // #### - // - // We handle overlap in the source and destination range by - // changing the copying direction. This prevents us from - // overwriting parts of source that we still need to copy. - // - // This correctly handles source == dest - // - if (source > dest) { - assembly { - // We subtract 32 from `sEnd` and `dEnd` because it - // is easier to compare with in the loop, and these - // are also the addresses we need for copying the - // last bytes. - length := sub(length, 32) - let sEnd := add(source, length) - let dEnd := add(dest, length) - - // Remember the last 32 bytes of source - // This needs to be done here and not after the loop - // because we may have overwritten the last bytes in - // source already due to overlap. - let last := mload(sEnd) - - // Copy whole words front to back - // Note: the first check is always true, - // this could have been a do-while loop. - // solhint-disable-next-line no-empty-blocks - for {} lt(source, sEnd) {} { - mstore(dest, mload(source)) - source := add(source, 32) - dest := add(dest, 32) - } - - // Write the last 32 bytes - mstore(dEnd, last) - } - } else { - assembly { - // We subtract 32 from `sEnd` and `dEnd` because those - // are the starting points when copying a word at the end. - length := sub(length, 32) - let sEnd := add(source, length) - let dEnd := add(dest, length) - - // Remember the first 32 bytes of source - // This needs to be done here and not after the loop - // because we may have overwritten the first bytes in - // source already due to overlap. - let first := mload(source) - - // Copy whole words back to front - // We use a signed comparisson here to allow dEnd to become - // negative (happens when source and dest < 32). Valid - // addresses in local memory will never be larger than - // 2**255, so they can be safely re-interpreted as signed. - // Note: the first check is always true, - // this could have been a do-while loop. - // solhint-disable-next-line no-empty-blocks - for {} slt(dest, dEnd) {} { - mstore(dEnd, mload(sEnd)) - sEnd := sub(sEnd, 32) - dEnd := sub(dEnd, 32) - } - - // Write the first 32 bytes - mstore(dest, first) - } - } - } - } - - /// @dev Returns a slices from a byte array. - /// @param b The byte array to take a slice from. - /// @param from The starting index for the slice (inclusive). - /// @param to The final index for the slice (exclusive). - /// @return result The slice containing bytes at indices [from, to) - function slice( - bytes memory b, - uint256 from, - uint256 to - ) - internal - pure - returns (bytes memory result) - { - require( - from <= to, - "FROM_LESS_THAN_TO_REQUIRED" - ); - require( - to < b.length, - "TO_LESS_THAN_LENGTH_REQUIRED" - ); - - // Create a new bytes structure and copy contents - result = new bytes(to - from); - memCopy( - result.contentAddress(), - b.contentAddress() + from, - result.length - ); - return result; - } - - /// @dev Returns a slice from a byte array without preserving the input. - /// @param b The byte array to take a slice from. Will be destroyed in the process. - /// @param from The starting index for the slice (inclusive). - /// @param to The final index for the slice (exclusive). - /// @return result The slice containing bytes at indices [from, to) - /// @dev When `from == 0`, the original array will match the slice. In other cases its state will be corrupted. - function sliceDestructive( - bytes memory b, - uint256 from, - uint256 to - ) - internal - pure - returns (bytes memory result) - { - require( - from <= to, - "FROM_LESS_THAN_TO_REQUIRED" - ); - require( - to < b.length, - "TO_LESS_THAN_LENGTH_REQUIRED" - ); - - // Create a new bytes structure around [from, to) in-place. - assembly { - result := add(b, from) - mstore(result, sub(to, from)) - } - return result; - } - - /// @dev Pops the last byte off of a byte array by modifying its length. - /// @param b Byte array that will be modified. - /// @return The byte that was popped off. - function popLastByte(bytes memory b) - internal - pure - returns (bytes1 result) - { - require( - b.length > 0, - "GREATER_THAN_ZERO_LENGTH_REQUIRED" - ); - - // Store last byte. - result = b[b.length - 1]; - - assembly { - // Decrement length of byte array. - let newLen := sub(mload(b), 1) - mstore(b, newLen) - } - return result; - } - - /// @dev Pops the last 20 bytes off of a byte array by modifying its length. - /// @param b Byte array that will be modified. - /// @return The 20 byte address that was popped off. - function popLast20Bytes(bytes memory b) - internal - pure - returns (address result) - { - require( - b.length >= 20, - "GREATER_OR_EQUAL_TO_20_LENGTH_REQUIRED" - ); - - // Store last 20 bytes. - result = readAddress(b, b.length - 20); - - assembly { - // Subtract 20 from byte array length. - let newLen := sub(mload(b), 20) - mstore(b, newLen) - } - return result; - } - - /// @dev Tests equality of two byte arrays. - /// @param lhs First byte array to compare. - /// @param rhs Second byte array to compare. - /// @return True if arrays are the same. False otherwise. - function equals( - bytes memory lhs, - bytes memory rhs - ) - internal - pure - returns (bool equal) - { - // Keccak gas cost is 30 + numWords * 6. This is a cheap way to compare. - // We early exit on unequal lengths, but keccak would also correctly - // handle this. - return lhs.length == rhs.length && keccak256(lhs) == keccak256(rhs); - } - - /// @dev Reads an address from a position in a byte array. - /// @param b Byte array containing an address. - /// @param index Index in byte array of address. - /// @return address from byte array. - function readAddress( - bytes memory b, - uint256 index - ) - internal - pure - returns (address result) - { - require( - b.length >= index + 20, // 20 is length of address - "GREATER_OR_EQUAL_TO_20_LENGTH_REQUIRED" - ); - - // Add offset to index: - // 1. Arrays are prefixed by 32-byte length parameter (add 32 to index) - // 2. Account for size difference between address length and 32-byte storage word (subtract 12 from index) - index += 20; - - // Read address from array memory - assembly { - // 1. Add index to address of bytes array - // 2. Load 32-byte word from memory - // 3. Apply 20-byte mask to obtain address - result := and(mload(add(b, index)), 0xffffffffffffffffffffffffffffffffffffffff) - } - return result; - } - - /// @dev Writes an address into a specific position in a byte array. - /// @param b Byte array to insert address into. - /// @param index Index in byte array of address. - /// @param input Address to put into byte array. - function writeAddress( - bytes memory b, - uint256 index, - address input - ) - internal - pure - { - require( - b.length >= index + 20, // 20 is length of address - "GREATER_OR_EQUAL_TO_20_LENGTH_REQUIRED" - ); - - // Add offset to index: - // 1. Arrays are prefixed by 32-byte length parameter (add 32 to index) - // 2. Account for size difference between address length and 32-byte storage word (subtract 12 from index) - index += 20; - - // Store address into array memory - assembly { - // The address occupies 20 bytes and mstore stores 32 bytes. - // First fetch the 32-byte word where we'll be storing the address, then - // apply a mask so we have only the bytes in the word that the address will not occupy. - // Then combine these bytes with the address and store the 32 bytes back to memory with mstore. - - // 1. Add index to address of bytes array - // 2. Load 32-byte word from memory - // 3. Apply 12-byte mask to obtain extra bytes occupying word of memory where we'll store the address - let neighbors := and( - mload(add(b, index)), - 0xffffffffffffffffffffffff0000000000000000000000000000000000000000 - ) - - // Make sure input address is clean. - // (Solidity does not guarantee this) - input := and(input, 0xffffffffffffffffffffffffffffffffffffffff) - - // Store the neighbors and address into memory - mstore(add(b, index), xor(input, neighbors)) - } - } - - /// @dev Reads a bytes32 value from a position in a byte array. - /// @param b Byte array containing a bytes32 value. - /// @param index Index in byte array of bytes32 value. - /// @return bytes32 value from byte array. - function readBytes32( - bytes memory b, - uint256 index - ) - internal - pure - returns (bytes32 result) - { - require( - b.length >= index + 32, - "GREATER_OR_EQUAL_TO_32_LENGTH_REQUIRED" - ); - - // Arrays are prefixed by a 256 bit length parameter - index += 32; - - // Read the bytes32 from array memory - assembly { - result := mload(add(b, index)) - } - return result; - } - - /// @dev Writes a bytes32 into a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input bytes32 to put into byte array. - function writeBytes32( - bytes memory b, - uint256 index, - bytes32 input - ) - internal - pure - { - require( - b.length >= index + 32, - "GREATER_OR_EQUAL_TO_32_LENGTH_REQUIRED" - ); - - // Arrays are prefixed by a 256 bit length parameter - index += 32; - - // Read the bytes32 from array memory - assembly { - mstore(add(b, index), input) - } - } - - /// @dev Reads a uint256 value from a position in a byte array. - /// @param b Byte array containing a uint256 value. - /// @param index Index in byte array of uint256 value. - /// @return uint256 value from byte array. - function readUint256( - bytes memory b, - uint256 index - ) - internal - pure - returns (uint256 result) - { - result = uint256(readBytes32(b, index)); - return result; - } - - /// @dev Writes a uint256 into a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input uint256 to put into byte array. - function writeUint256( - bytes memory b, - uint256 index, - uint256 input - ) - internal - pure - { - writeBytes32(b, index, bytes32(input)); - } - - /// @dev Reads an unpadded bytes4 value from a position in a byte array. - /// @param b Byte array containing a bytes4 value. - /// @param index Index in byte array of bytes4 value. - /// @return bytes4 value from byte array. - function readBytes4( - bytes memory b, - uint256 index - ) - internal - pure - returns (bytes4 result) - { - require( - b.length >= index + 4, - "GREATER_OR_EQUAL_TO_4_LENGTH_REQUIRED" - ); - - // Arrays are prefixed by a 32 byte length field - index += 32; - - // Read the bytes4 from array memory - assembly { - result := mload(add(b, index)) - // Solidity does not require us to clean the trailing bytes. - // We do it anyway - result := and(result, 0xFFFFFFFF00000000000000000000000000000000000000000000000000000000) - } - return result; - } - - /// @dev Reads nested bytes from a specific position. - /// @dev NOTE: the returned value overlaps with the input value. - /// Both should be treated as immutable. - /// @param b Byte array containing nested bytes. - /// @param index Index of nested bytes. - /// @return result Nested bytes. - function readBytesWithLength( - bytes memory b, - uint256 index - ) - internal - pure - returns (bytes memory result) - { - // Read length of nested bytes - uint256 nestedBytesLength = readUint256(b, index); - index += 32; - - // Assert length of <b> is valid, given - // length of nested bytes - require( - b.length >= index + nestedBytesLength, - "GREATER_OR_EQUAL_TO_NESTED_BYTES_LENGTH_REQUIRED" - ); - - // Return a pointer to the byte array as it exists inside `b` - assembly { - result := add(b, index) - } - return result; - } - - /// @dev Inserts bytes at a specific position in a byte array. - /// @param b Byte array to insert <input> into. - /// @param index Index in byte array of <input>. - /// @param input bytes to insert. - function writeBytesWithLength( - bytes memory b, - uint256 index, - bytes memory input - ) - internal - pure - { - // Assert length of <b> is valid, given - // length of input - require( - b.length >= index + 32 + input.length, // 32 bytes to store length - "GREATER_OR_EQUAL_TO_NESTED_BYTES_LENGTH_REQUIRED" - ); - - // Copy <input> into <b> - memCopy( - b.contentAddress() + index, - input.rawAddress(), // includes length of <input> - input.length + 32 // +32 bytes to store <input> length - ); - } - - /// @dev Performs a deep copy of a byte array onto another byte array of greater than or equal length. - /// @param dest Byte array that will be overwritten with source bytes. - /// @param source Byte array to copy onto dest bytes. - function deepCopyBytes( - bytes memory dest, - bytes memory source - ) - internal - pure - { - uint256 sourceLen = source.length; - // Dest length must be >= source length, or some bytes would not be copied. - require( - dest.length >= sourceLen, - "GREATER_OR_EQUAL_TO_SOURCE_BYTES_LENGTH_REQUIRED" - ); - memCopy( - dest.contentAddress(), - source.contentAddress(), - sourceLen - ); - } -} diff --git a/contracts/utils/contracts/utils/Ownable/IOwnable.sol b/contracts/utils/contracts/utils/Ownable/IOwnable.sol deleted file mode 100644 index c0cbfddfd..000000000 --- a/contracts/utils/contracts/utils/Ownable/IOwnable.sol +++ /dev/null @@ -1,8 +0,0 @@ -pragma solidity ^0.4.24; - - -contract IOwnable { - - function transferOwnership(address newOwner) - public; -} diff --git a/contracts/utils/contracts/utils/Ownable/Ownable.sol b/contracts/utils/contracts/utils/Ownable/Ownable.sol deleted file mode 100644 index aa74a72d2..000000000 --- a/contracts/utils/contracts/utils/Ownable/Ownable.sol +++ /dev/null @@ -1,33 +0,0 @@ -pragma solidity ^0.4.24; - -import "./IOwnable.sol"; - - -contract Ownable is - IOwnable -{ - address public owner; - - constructor () - public - { - owner = msg.sender; - } - - modifier onlyOwner() { - require( - msg.sender == owner, - "ONLY_CONTRACT_OWNER" - ); - _; - } - - function transferOwnership(address newOwner) - public - onlyOwner - { - if (newOwner != address(0)) { - owner = newOwner; - } - } -} diff --git a/contracts/utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol b/contracts/utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol deleted file mode 100644 index 1a02c88a4..000000000 --- a/contracts/utils/contracts/utils/ReentrancyGuard/ReentrancyGuard.sol +++ /dev/null @@ -1,45 +0,0 @@ -/* - - Copyright 2018 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity ^0.4.24; - - -contract ReentrancyGuard { - - // Locked state of mutex - bool private locked = false; - - /// @dev Functions with this modifer cannot be reentered. The mutex will be locked - /// before function execution and unlocked after. - modifier nonReentrant() { - // Ensure mutex is unlocked - require( - !locked, - "REENTRANCY_ILLEGAL" - ); - - // Lock mutex before function call - locked = true; - - // Perform function call - _; - - // Unlock mutex after function call - locked = false; - } -} diff --git a/contracts/utils/contracts/utils/SafeMath/SafeMath.sol b/contracts/utils/contracts/utils/SafeMath/SafeMath.sol deleted file mode 100644 index d7a4a603e..000000000 --- a/contracts/utils/contracts/utils/SafeMath/SafeMath.sol +++ /dev/null @@ -1,87 +0,0 @@ -pragma solidity ^0.4.24; - - -contract SafeMath { - - function safeMul(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - if (a == 0) { - return 0; - } - uint256 c = a * b; - require( - c / a == b, - "UINT256_OVERFLOW" - ); - return c; - } - - function safeDiv(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - uint256 c = a / b; - return c; - } - - function safeSub(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - require( - b <= a, - "UINT256_UNDERFLOW" - ); - return a - b; - } - - function safeAdd(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - uint256 c = a + b; - require( - c >= a, - "UINT256_OVERFLOW" - ); - return c; - } - - function max64(uint64 a, uint64 b) - internal - pure - returns (uint256) - { - return a >= b ? a : b; - } - - function min64(uint64 a, uint64 b) - internal - pure - returns (uint256) - { - return a < b ? a : b; - } - - function max256(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - return a >= b ? a : b; - } - - function min256(uint256 a, uint256 b) - internal - pure - returns (uint256) - { - return a < b ? a : b; - } -} diff --git a/contracts/utils/package.json b/contracts/utils/package.json deleted file mode 100644 index 4e45169fd..000000000 --- a/contracts/utils/package.json +++ /dev/null @@ -1,87 +0,0 @@ -{ - "name": "@0x/contracts-utils", - "version": "1.0.6", - "engines": { - "node": ">=6.12" - }, - "description": "Smart contract utils of 0x protocol", - "main": "lib/src/index.js", - "directories": { - "test": "test" - }, - "scripts": { - "build": "yarn pre_build && tsc -b", - "build:ci": "yarn build", - "pre_build": "run-s compile generate_contract_wrappers", - "test": "yarn run_mocha", - "rebuild_and_test": "run-s build test", - "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov", - "test:profiler": "SOLIDITY_PROFILER=true run-s build run_mocha profiler:report:html", - "test:trace": "SOLIDITY_REVERT_TRACE=true run-s build run_mocha", - "run_mocha": "mocha --require source-map-support/register --require make-promises-safe 'lib/test/**/*.js' --timeout 100000 --bail --exit", - "compile": "sol-compiler", - "watch": "sol-compiler -w", - "clean": "shx rm -rf lib generated-artifacts generated-wrappers", - "generate_contract_wrappers": "abi-gen --abis ${npm_package_config_abis} --template ../../node_modules/@0x/abi-gen-templates/contract.handlebars --partials '../../node_modules/@0x/abi-gen-templates/partials/**/*.handlebars' --output generated-wrappers --backend ethers", - "lint": "tslint --format stylish --project . --exclude ./generated-wrappers/**/* --exclude ./generated-artifacts/**/* --exclude **/lib/**/* && yarn lint-contracts", - "coverage:report:text": "istanbul report text", - "coverage:report:html": "istanbul report html && open coverage/index.html", - "profiler:report:html": "istanbul report html && open coverage/index.html", - "coverage:report:lcov": "istanbul report lcov", - "test:circleci": "yarn test", - "lint-contracts": "solhint -c ../.solhint.json contracts/**/**/**/**/*.sol" - }, - "config": { - "abis": "generated-artifacts/@(IOwnable|Ownable|LibBytes|ReentrancyGuard|SafeMath|TestConstants|TestLibBytes).json" - }, - "repository": { - "type": "git", - "url": "https://github.com/0xProject/0x-monorepo.git" - }, - "license": "Apache-2.0", - "bugs": { - "url": "https://github.com/0xProject/0x-monorepo/issues" - }, - "homepage": "https://github.com/0xProject/0x-monorepo/contracts/utils/README.md", - "devDependencies": { - "@0x/abi-gen": "^1.0.22", - "@0x/contracts-test-utils": "^2.0.1", - "@0x/dev-utils": "^1.0.24", - "@0x/sol-compiler": "^2.0.2", - "@0x/subproviders": "^2.1.11", - "@0x/tslint-config": "^2.0.2", - "@types/bn.js": "^4.11.0", - "@types/lodash": "4.14.104", - "@types/node": "*", - "@types/yargs": "^10.0.0", - "bn.js": "^4.11.8", - "chai": "^4.0.1", - "chai-as-promised": "^7.1.0", - "chai-bignumber": "^3.0.0", - "dirty-chai": "^2.0.1", - "ethereumjs-abi": "0.6.5", - "make-promises-safe": "^1.1.0", - "mocha": "^4.1.0", - "npm-run-all": "^4.1.2", - "shx": "^0.2.2", - "solhint": "^1.4.1", - "tslint": "5.11.0", - "typescript": "3.0.1", - "yargs": "^10.0.3" - }, - "dependencies": { - "@0x/base-contract": "^3.0.13", - "@0x/contracts-multisig": "^1.0.6", - "@0x/order-utils": "^3.1.2", - "@0x/types": "^1.5.2", - "@0x/typescript-typings": "^3.0.8", - "@0x/utils": "^3.0.1", - "@0x/web3-wrapper": "^3.2.4", - "ethereum-types": "^1.1.6", - "ethereumjs-util": "^5.1.1", - "lodash": "^4.17.5" - }, - "publishConfig": { - "access": "public" - } -} diff --git a/contracts/utils/src/artifacts/index.ts b/contracts/utils/src/artifacts/index.ts deleted file mode 100644 index a5c2b215c..000000000 --- a/contracts/utils/src/artifacts/index.ts +++ /dev/null @@ -1,19 +0,0 @@ -import { ContractArtifact } from 'ethereum-types'; - -import * as IOwnable from '../../generated-artifacts/IOwnable.json'; -import * as LibBytes from '../../generated-artifacts/LibBytes.json'; -import * as Ownable from '../../generated-artifacts/Ownable.json'; -import * as ReentrancyGuard from '../../generated-artifacts/ReentrancyGuard.json'; -import * as SafeMath from '../../generated-artifacts/SafeMath.json'; -import * as TestConstants from '../../generated-artifacts/TestConstants.json'; -import * as TestLibBytes from '../../generated-artifacts/TestLibBytes.json'; - -export const artifacts = { - TestConstants: TestConstants as ContractArtifact, - TestLibBytes: TestLibBytes as ContractArtifact, - IOwnable: IOwnable as ContractArtifact, - LibBytes: LibBytes as ContractArtifact, - Ownable: Ownable as ContractArtifact, - SafeMath: SafeMath as ContractArtifact, - ReentrancyGuard: ReentrancyGuard as ContractArtifact, -}; diff --git a/contracts/utils/src/index.ts b/contracts/utils/src/index.ts deleted file mode 100644 index d55f08ea2..000000000 --- a/contracts/utils/src/index.ts +++ /dev/null @@ -1,2 +0,0 @@ -export * from './artifacts'; -export * from './wrappers'; diff --git a/contracts/utils/src/wrappers/index.ts b/contracts/utils/src/wrappers/index.ts deleted file mode 100644 index 823b7fa4b..000000000 --- a/contracts/utils/src/wrappers/index.ts +++ /dev/null @@ -1,2 +0,0 @@ -export * from '../../generated-wrappers/test_constants'; -export * from '../../generated-wrappers/test_lib_bytes'; diff --git a/contracts/utils/test/global_hooks.ts b/contracts/utils/test/global_hooks.ts deleted file mode 100644 index f8ace376a..000000000 --- a/contracts/utils/test/global_hooks.ts +++ /dev/null @@ -1,17 +0,0 @@ -import { env, EnvVars } from '@0x/dev-utils'; - -import { coverage, profiler, provider } from '@0x/contracts-test-utils'; -before('start web3 provider', () => { - provider.start(); -}); -after('generate coverage report', async () => { - if (env.parseBoolean(EnvVars.SolidityCoverage)) { - const coverageSubprovider = coverage.getCoverageSubproviderSingleton(); - await coverageSubprovider.writeCoverageAsync(); - } - if (env.parseBoolean(EnvVars.SolidityProfiler)) { - const profilerSubprovider = profiler.getProfilerSubproviderSingleton(); - await profilerSubprovider.writeProfilerOutputAsync(); - } - provider.stop(); -}); diff --git a/contracts/utils/test/lib_bytes.ts b/contracts/utils/test/lib_bytes.ts deleted file mode 100644 index 6fb859c67..000000000 --- a/contracts/utils/test/lib_bytes.ts +++ /dev/null @@ -1,875 +0,0 @@ -import { - chaiSetup, - constants, - expectContractCallFailedAsync, - provider, - txDefaults, - typeEncodingUtils, - web3Wrapper, -} from '@0x/contracts-test-utils'; -import { BlockchainLifecycle } from '@0x/dev-utils'; -import { generatePseudoRandomSalt } from '@0x/order-utils'; -import { RevertReason } from '@0x/types'; -import { BigNumber } from '@0x/utils'; -import BN = require('bn.js'); -import * as chai from 'chai'; -import ethUtil = require('ethereumjs-util'); -import * as _ from 'lodash'; - -import { TestLibBytesContract } from '../generated-wrappers/test_lib_bytes'; -import { artifacts } from '../src'; - -chaiSetup.configure(); -const expect = chai.expect; -const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); - -// BUG: Ideally we would use Buffer.from(memory).toString('hex') -// https://github.com/Microsoft/TypeScript/issues/23155 -const toHex = (buf: Uint8Array): string => buf.reduce((a, v) => a + `00${v.toString(16)}`.slice(-2), '0x'); - -const fromHex = (str: string): Uint8Array => Uint8Array.from(Buffer.from(str.slice(2), 'hex')); - -describe('LibBytes', () => { - let libBytes: TestLibBytesContract; - const byteArrayShorterThan32Bytes = '0x012345'; - const byteArrayShorterThan20Bytes = byteArrayShorterThan32Bytes; - const byteArrayLongerThan32Bytes = - '0x0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef'; - const byteArrayLongerThan32BytesFirstBytesSwapped = - '0x2301456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef'; - const byteArrayLongerThan32BytesLastBytesSwapped = - '0x0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abefcd'; - let testAddress: string; - let testAddressB: string; - const testBytes32 = '0x102030405060708090a0b0c0d0e0f0102030405060708090a0b0c0d0e0f01020'; - const testBytes32B = '0x534877abd8443578526845cdfef020047528759477fedef87346527659aced32'; - const testUint256 = new BigNumber(testBytes32, 16); - const testUint256B = new BigNumber(testBytes32B, 16); - const testBytes4 = '0xabcdef12'; - const testByte = '0xab'; - let shortData: string; - let shortTestBytes: string; - let shortTestBytesAsBuffer: Buffer; - let wordOfData: string; - let wordOfTestBytes: string; - let wordOfTestBytesAsBuffer: Buffer; - let longData: string; - let longTestBytes: string; - let longTestBytesAsBuffer: Buffer; - - before(async () => { - await blockchainLifecycle.startAsync(); - }); - after(async () => { - await blockchainLifecycle.revertAsync(); - }); - before(async () => { - // Setup accounts & addresses - const accounts = await web3Wrapper.getAvailableAddressesAsync(); - testAddress = accounts[1]; - testAddressB = accounts[2]; - // Deploy LibBytes - libBytes = await TestLibBytesContract.deployFrom0xArtifactAsync(artifacts.TestLibBytes, provider, txDefaults); - // Verify lengths of test data - const byteArrayShorterThan32BytesLength = ethUtil.toBuffer(byteArrayShorterThan32Bytes).byteLength; - expect(byteArrayShorterThan32BytesLength).to.be.lessThan(32); - const byteArrayLongerThan32BytesLength = ethUtil.toBuffer(byteArrayLongerThan32Bytes).byteLength; - expect(byteArrayLongerThan32BytesLength).to.be.greaterThan(32); - const testBytes32Length = ethUtil.toBuffer(testBytes32).byteLength; - expect(testBytes32Length).to.be.equal(32); - // Create short test bytes - shortData = '0xffffaa'; - const encodedShortData = ethUtil.toBuffer(shortData); - const shortDataLength = new BigNumber(encodedShortData.byteLength); - const encodedShortDataLength = typeEncodingUtils.encodeUint256(shortDataLength); - shortTestBytesAsBuffer = Buffer.concat([encodedShortDataLength, encodedShortData]); - shortTestBytes = ethUtil.bufferToHex(shortTestBytesAsBuffer); - // Create test bytes one word in length - wordOfData = ethUtil.bufferToHex(typeEncodingUtils.encodeUint256(generatePseudoRandomSalt())); - const encodedWordOfData = ethUtil.toBuffer(wordOfData); - const wordOfDataLength = new BigNumber(encodedWordOfData.byteLength); - const encodedWordOfDataLength = typeEncodingUtils.encodeUint256(wordOfDataLength); - wordOfTestBytesAsBuffer = Buffer.concat([encodedWordOfDataLength, encodedWordOfData]); - wordOfTestBytes = ethUtil.bufferToHex(wordOfTestBytesAsBuffer); - // Create long test bytes (combines short test bytes with word of test bytes) - longData = ethUtil.bufferToHex(Buffer.concat([encodedShortData, encodedWordOfData])); - const longDataLength = new BigNumber(encodedShortData.byteLength + encodedWordOfData.byteLength); - const encodedLongDataLength = typeEncodingUtils.encodeUint256(longDataLength); - longTestBytesAsBuffer = Buffer.concat([encodedLongDataLength, encodedShortData, encodedWordOfData]); - longTestBytes = ethUtil.bufferToHex(longTestBytesAsBuffer); - }); - beforeEach(async () => { - await blockchainLifecycle.startAsync(); - }); - afterEach(async () => { - await blockchainLifecycle.revertAsync(); - }); - - describe('popLastByte', () => { - it('should revert if length is 0', async () => { - return expectContractCallFailedAsync( - libBytes.publicPopLastByte.callAsync(constants.NULL_BYTES), - RevertReason.LibBytesGreaterThanZeroLengthRequired, - ); - }); - it('should pop the last byte from the input and return it when array holds more than 1 byte', async () => { - const [newBytes, poppedByte] = await libBytes.publicPopLastByte.callAsync(byteArrayLongerThan32Bytes); - const expectedNewBytes = byteArrayLongerThan32Bytes.slice(0, -2); - const expectedPoppedByte = `0x${byteArrayLongerThan32Bytes.slice(-2)}`; - expect(newBytes).to.equal(expectedNewBytes); - expect(poppedByte).to.equal(expectedPoppedByte); - }); - it('should pop the last byte from the input and return it when array is exactly 1 byte', async () => { - const [newBytes, poppedByte] = await libBytes.publicPopLastByte.callAsync(testByte); - const expectedNewBytes = '0x'; - expect(newBytes).to.equal(expectedNewBytes); - return expect(poppedByte).to.be.equal(testByte); - }); - }); - - describe('popLast20Bytes', () => { - it('should revert if length is less than 20', async () => { - return expectContractCallFailedAsync( - libBytes.publicPopLast20Bytes.callAsync(byteArrayShorterThan20Bytes), - RevertReason.LibBytesGreaterOrEqualTo20LengthRequired, - ); - }); - it('should pop the last 20 bytes from the input and return it when array holds more than 20 bytes', async () => { - const [newBytes, poppedAddress] = await libBytes.publicPopLast20Bytes.callAsync(byteArrayLongerThan32Bytes); - const expectedNewBytes = byteArrayLongerThan32Bytes.slice(0, -40); - const expectedPoppedAddress = `0x${byteArrayLongerThan32Bytes.slice(-40)}`; - expect(newBytes).to.equal(expectedNewBytes); - expect(poppedAddress).to.equal(expectedPoppedAddress); - }); - it('should pop the last 20 bytes from the input and return it when array is exactly 20 bytes', async () => { - const [newBytes, poppedAddress] = await libBytes.publicPopLast20Bytes.callAsync(testAddress); - const expectedNewBytes = '0x'; - const expectedPoppedAddress = testAddress; - expect(newBytes).to.equal(expectedNewBytes); - expect(poppedAddress).to.equal(expectedPoppedAddress); - }); - }); - - describe('equals', () => { - it('should return true if byte arrays are equal (both arrays < 32 bytes)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayShorterThan32Bytes, - byteArrayShorterThan32Bytes, - ); - return expect(isEqual).to.be.true(); - }); - it('should return true if byte arrays are equal (both arrays > 32 bytes)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayLongerThan32Bytes, - byteArrayLongerThan32Bytes, - ); - return expect(isEqual).to.be.true(); - }); - it('should return false if byte arrays are not equal (first array < 32 bytes, second array > 32 bytes)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayShorterThan32Bytes, - byteArrayLongerThan32Bytes, - ); - return expect(isEqual).to.be.false(); - }); - it('should return false if byte arrays are not equal (first array > 32 bytes, second array < 32 bytes)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayLongerThan32Bytes, - byteArrayShorterThan32Bytes, - ); - return expect(isEqual).to.be.false(); - }); - it('should return false if byte arrays are not equal (same length, but a byte in first word differs)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayLongerThan32BytesFirstBytesSwapped, - byteArrayLongerThan32Bytes, - ); - return expect(isEqual).to.be.false(); - }); - it('should return false if byte arrays are not equal (same length, but a byte in last word differs)', async () => { - const isEqual = await libBytes.publicEquals.callAsync( - byteArrayLongerThan32BytesLastBytesSwapped, - byteArrayLongerThan32Bytes, - ); - return expect(isEqual).to.be.false(); - }); - - describe('should ignore trailing data', () => { - it('should return true when both < 32 bytes', async () => { - const isEqual = await libBytes.publicEqualsPop1.callAsync('0x0102', '0x0103'); - return expect(isEqual).to.be.true(); - }); - }); - }); - - describe('deepCopyBytes', () => { - it('should revert if dest is shorter than source', async () => { - return expectContractCallFailedAsync( - libBytes.publicDeepCopyBytes.callAsync(byteArrayShorterThan32Bytes, byteArrayLongerThan32Bytes), - RevertReason.LibBytesGreaterOrEqualToSourceBytesLengthRequired, - ); - }); - it('should overwrite dest with source if source and dest have equal length', async () => { - const zeroedByteArrayLongerThan32Bytes = `0x${_.repeat('0', byteArrayLongerThan32Bytes.length - 2)}`; - const zeroedBytesAfterCopy = await libBytes.publicDeepCopyBytes.callAsync( - zeroedByteArrayLongerThan32Bytes, - byteArrayLongerThan32Bytes, - ); - return expect(zeroedBytesAfterCopy).to.be.equal(byteArrayLongerThan32Bytes); - }); - it('should overwrite the leftmost len(source) bytes of dest if dest is larger than source', async () => { - const zeroedByteArrayLongerThan32Bytes = `0x${_.repeat('0', byteArrayLongerThan32Bytes.length * 2)}`; - const zeroedBytesAfterCopy = await libBytes.publicDeepCopyBytes.callAsync( - zeroedByteArrayLongerThan32Bytes, - byteArrayLongerThan32Bytes, - ); - const copiedBytes = zeroedBytesAfterCopy.slice(0, byteArrayLongerThan32Bytes.length); - return expect(copiedBytes).to.be.equal(byteArrayLongerThan32Bytes); - }); - it('should not overwrite the rightmost bytes of dest if dest is larger than source', async () => { - const zeroedByteArrayLongerThan32Bytes = `0x${_.repeat('0', byteArrayLongerThan32Bytes.length * 2)}`; - const zeroedBytesAfterCopy = await libBytes.publicDeepCopyBytes.callAsync( - zeroedByteArrayLongerThan32Bytes, - byteArrayLongerThan32Bytes, - ); - const expectedNotCopiedBytes = zeroedByteArrayLongerThan32Bytes.slice(byteArrayLongerThan32Bytes.length); - const notCopiedBytes = zeroedBytesAfterCopy.slice(byteArrayLongerThan32Bytes.length); - return expect(notCopiedBytes).to.be.equal(expectedNotCopiedBytes); - }); - }); - - describe('readAddress', () => { - it('should successfully read address when the address takes up the whole array', async () => { - const byteArray = ethUtil.addHexPrefix(testAddress); - const testAddressOffset = new BigNumber(0); - const address = await libBytes.publicReadAddress.callAsync(byteArray, testAddressOffset); - return expect(address).to.be.equal(testAddress); - }); - it('should successfully read address when it is offset in the array', async () => { - const addressByteArrayBuffer = ethUtil.toBuffer(testAddress); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, addressByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testAddressOffset = new BigNumber(prefixByteArrayBuffer.byteLength); - const address = await libBytes.publicReadAddress.callAsync(combinedByteArray, testAddressOffset); - return expect(address).to.be.equal(testAddress); - }); - it('should fail if the byte array is too short to hold an address', async () => { - const shortByteArray = '0xabcdef'; - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadAddress.callAsync(shortByteArray, offset), - RevertReason.LibBytesGreaterOrEqualTo20LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold an address', async () => { - const byteArray = testAddress; - const badOffset = new BigNumber(ethUtil.toBuffer(byteArray).byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadAddress.callAsync(byteArray, badOffset), - RevertReason.LibBytesGreaterOrEqualTo20LengthRequired, - ); - }); - }); - - describe('writeAddress', () => { - it('should successfully write address when the address takes up the whole array', async () => { - const byteArray = testAddress; - const testAddressOffset = new BigNumber(0); - const newByteArray = await libBytes.publicWriteAddress.callAsync( - byteArray, - testAddressOffset, - testAddressB, - ); - return expect(newByteArray).to.be.equal(testAddressB); - }); - it('should successfully write address when it is offset in the array', async () => { - const addressByteArrayBuffer = ethUtil.toBuffer(testAddress); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, addressByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testAddressOffset = new BigNumber(prefixByteArrayBuffer.byteLength); - const newByteArray = await libBytes.publicWriteAddress.callAsync( - combinedByteArray, - testAddressOffset, - testAddressB, - ); - const newByteArrayBuffer = ethUtil.toBuffer(newByteArray); - const addressFromOffsetBuffer = newByteArrayBuffer.slice(prefixByteArrayBuffer.byteLength); - const addressFromOffset = ethUtil.addHexPrefix(ethUtil.bufferToHex(addressFromOffsetBuffer)); - return expect(addressFromOffset).to.be.equal(testAddressB); - }); - it('should fail if the byte array is too short to hold an address', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicWriteAddress.callAsync(byteArrayShorterThan20Bytes, offset, testAddress), - RevertReason.LibBytesGreaterOrEqualTo20LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold an address', async () => { - const byteArray = byteArrayLongerThan32Bytes; - const badOffset = new BigNumber(ethUtil.toBuffer(byteArray).byteLength); - return expectContractCallFailedAsync( - libBytes.publicWriteAddress.callAsync(byteArray, badOffset, testAddress), - RevertReason.LibBytesGreaterOrEqualTo20LengthRequired, - ); - }); - }); - - describe('readBytes32', () => { - it('should successfully read bytes32 when the bytes32 takes up the whole array', async () => { - const testBytes32Offset = new BigNumber(0); - const bytes32 = await libBytes.publicReadBytes32.callAsync(testBytes32, testBytes32Offset); - return expect(bytes32).to.be.equal(testBytes32); - }); - it('should successfully read bytes32 when it is offset in the array', async () => { - const bytes32ByteArrayBuffer = ethUtil.toBuffer(testBytes32); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, bytes32ByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testBytes32Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes32 = await libBytes.publicReadBytes32.callAsync(combinedByteArray, testBytes32Offset); - return expect(bytes32).to.be.equal(testBytes32); - }); - it('should fail if the byte array is too short to hold a bytes32', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadBytes32.callAsync(byteArrayShorterThan32Bytes, offset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold a bytes32', async () => { - const badOffset = new BigNumber(ethUtil.toBuffer(testBytes32).byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadBytes32.callAsync(testBytes32, badOffset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - }); - - describe('writeBytes32', () => { - it('should successfully write bytes32 when the address takes up the whole array', async () => { - const byteArray = testBytes32; - const testBytes32Offset = new BigNumber(0); - const newByteArray = await libBytes.publicWriteBytes32.callAsync( - byteArray, - testBytes32Offset, - testBytes32B, - ); - return expect(newByteArray).to.be.equal(testBytes32B); - }); - it('should successfully write bytes32 when it is offset in the array', async () => { - const bytes32ByteArrayBuffer = ethUtil.toBuffer(testBytes32); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, bytes32ByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testBytes32Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const newByteArray = await libBytes.publicWriteBytes32.callAsync( - combinedByteArray, - testBytes32Offset, - testBytes32B, - ); - const newByteArrayBuffer = ethUtil.toBuffer(newByteArray); - const bytes32FromOffsetBuffer = newByteArrayBuffer.slice(prefixByteArrayBuffer.byteLength); - const bytes32FromOffset = ethUtil.addHexPrefix(ethUtil.bufferToHex(bytes32FromOffsetBuffer)); - return expect(bytes32FromOffset).to.be.equal(testBytes32B); - }); - it('should fail if the byte array is too short to hold a bytes32', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicWriteBytes32.callAsync(byteArrayShorterThan32Bytes, offset, testBytes32), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold a bytes32', async () => { - const byteArray = byteArrayLongerThan32Bytes; - const badOffset = new BigNumber(ethUtil.toBuffer(byteArray).byteLength); - return expectContractCallFailedAsync( - libBytes.publicWriteBytes32.callAsync(byteArray, badOffset, testBytes32), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - }); - - describe('readUint256', () => { - it('should successfully read uint256 when the uint256 takes up the whole array', async () => { - const formattedTestUint256 = new BN(testUint256.toString(10)); - const testUint256AsBuffer = ethUtil.toBuffer(formattedTestUint256); - const byteArray = ethUtil.bufferToHex(testUint256AsBuffer); - const testUint256Offset = new BigNumber(0); - const uint256 = await libBytes.publicReadUint256.callAsync(byteArray, testUint256Offset); - return expect(uint256).to.bignumber.equal(testUint256); - }); - it('should successfully read uint256 when it is offset in the array', async () => { - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const formattedTestUint256 = new BN(testUint256.toString(10)); - const testUint256AsBuffer = ethUtil.toBuffer(formattedTestUint256); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, testUint256AsBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const uint256 = await libBytes.publicReadUint256.callAsync(combinedByteArray, testUint256Offset); - return expect(uint256).to.bignumber.equal(testUint256); - }); - it('should fail if the byte array is too short to hold a uint256', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadUint256.callAsync(byteArrayShorterThan32Bytes, offset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold a uint256', async () => { - const formattedTestUint256 = new BN(testUint256.toString(10)); - const testUint256AsBuffer = ethUtil.toBuffer(formattedTestUint256); - const byteArray = ethUtil.bufferToHex(testUint256AsBuffer); - const badOffset = new BigNumber(testUint256AsBuffer.byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadUint256.callAsync(byteArray, badOffset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - }); - - describe('writeUint256', () => { - it('should successfully write uint256 when the address takes up the whole array', async () => { - const byteArray = testBytes32; - const testUint256Offset = new BigNumber(0); - const newByteArray = await libBytes.publicWriteUint256.callAsync( - byteArray, - testUint256Offset, - testUint256B, - ); - const newByteArrayAsUint256 = new BigNumber(newByteArray, 16); - return expect(newByteArrayAsUint256).to.be.bignumber.equal(testUint256B); - }); - it('should successfully write uint256 when it is offset in the array', async () => { - const bytes32ByteArrayBuffer = ethUtil.toBuffer(testBytes32); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, bytes32ByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const newByteArray = await libBytes.publicWriteUint256.callAsync( - combinedByteArray, - testUint256Offset, - testUint256B, - ); - const newByteArrayBuffer = ethUtil.toBuffer(newByteArray); - const uint256FromOffsetBuffer = newByteArrayBuffer.slice(prefixByteArrayBuffer.byteLength); - const uint256FromOffset = new BigNumber( - ethUtil.addHexPrefix(ethUtil.bufferToHex(uint256FromOffsetBuffer)), - 16, - ); - return expect(uint256FromOffset).to.be.bignumber.equal(testUint256B); - }); - it('should fail if the byte array is too short to hold a uint256', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicWriteUint256.callAsync(byteArrayShorterThan32Bytes, offset, testUint256), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold a uint256', async () => { - const byteArray = byteArrayLongerThan32Bytes; - const badOffset = new BigNumber(ethUtil.toBuffer(byteArray).byteLength); - return expectContractCallFailedAsync( - libBytes.publicWriteUint256.callAsync(byteArray, badOffset, testUint256), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - }); - - describe('readBytes4', () => { - // AssertionError: expected promise to be rejected with an error including 'revert' but it was fulfilled with '0x08c379a0' - it('should revert if byte array has a length < 4', async () => { - const byteArrayLessThan4Bytes = '0x010101'; - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadBytes4.callAsync(byteArrayLessThan4Bytes, offset), - RevertReason.LibBytesGreaterOrEqualTo4LengthRequired, - ); - }); - it('should return the first 4 bytes of a byte array of arbitrary length', async () => { - const first4Bytes = await libBytes.publicReadBytes4.callAsync(byteArrayLongerThan32Bytes, new BigNumber(0)); - const expectedFirst4Bytes = byteArrayLongerThan32Bytes.slice(0, 10); - expect(first4Bytes).to.equal(expectedFirst4Bytes); - }); - it('should successfully read bytes4 when the bytes4 takes up the whole array', async () => { - const testBytes4Offset = new BigNumber(0); - const bytes4 = await libBytes.publicReadBytes4.callAsync(testBytes4, testBytes4Offset); - return expect(bytes4).to.be.equal(testBytes4); - }); - it('should successfully read bytes4 when it is offset in the array', async () => { - const bytes4ByteArrayBuffer = ethUtil.toBuffer(testBytes4); - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, bytes4ByteArrayBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testBytes4Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes4 = await libBytes.publicReadBytes4.callAsync(combinedByteArray, testBytes4Offset); - return expect(bytes4).to.be.equal(testBytes4); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold a bytes4', async () => { - const badOffset = new BigNumber(ethUtil.toBuffer(testBytes4).byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadBytes4.callAsync(testBytes4, badOffset), - RevertReason.LibBytesGreaterOrEqualTo4LengthRequired, - ); - }); - }); - - describe('readBytesWithLength', () => { - it('should successfully read short, nested array of bytes when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(shortTestBytes, testBytesOffset); - return expect(bytes).to.be.equal(shortData); - }); - it('should successfully read short, nested array of bytes when it is offset in the array', async () => { - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, shortTestBytesAsBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(combinedByteArray, testUint256Offset); - return expect(bytes).to.be.equal(shortData); - }); - it('should successfully read a nested array of bytes - one word in length - when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(wordOfTestBytes, testBytesOffset); - return expect(bytes).to.be.equal(wordOfData); - }); - it('should successfully read a nested array of bytes - one word in length - when it is offset in the array', async () => { - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, wordOfTestBytesAsBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(combinedByteArray, testUint256Offset); - return expect(bytes).to.be.equal(wordOfData); - }); - it('should successfully read long, nested array of bytes when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(longTestBytes, testBytesOffset); - return expect(bytes).to.be.equal(longData); - }); - it('should successfully read long, nested array of bytes when it is offset in the array', async () => { - const prefixByteArrayBuffer = ethUtil.toBuffer('0xabcdef'); - const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, longTestBytesAsBuffer]); - const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); - const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytesWithLength.callAsync(combinedByteArray, testUint256Offset); - return expect(bytes).to.be.equal(longData); - }); - it('should fail if the byte array is too short to hold the length of a nested byte array', async () => { - // The length of the nested array is 32 bytes. By storing less than 32 bytes, a length cannot be read. - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadBytesWithLength.callAsync(byteArrayShorterThan32Bytes, offset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if we store a nested byte array length, without a nested byte array', async () => { - const offset = new BigNumber(0); - return expectContractCallFailedAsync( - libBytes.publicReadBytesWithLength.callAsync(testBytes32, offset), - RevertReason.LibBytesGreaterOrEqualToNestedBytesLengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold the length of a nested byte array', async () => { - const badOffset = new BigNumber(ethUtil.toBuffer(byteArrayShorterThan32Bytes).byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadBytesWithLength.callAsync(byteArrayShorterThan32Bytes, badOffset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold the nested byte array', async () => { - const badOffset = new BigNumber(ethUtil.toBuffer(testBytes32).byteLength); - return expectContractCallFailedAsync( - libBytes.publicReadBytesWithLength.callAsync(testBytes32, badOffset), - RevertReason.LibBytesGreaterOrEqualTo32LengthRequired, - ); - }); - }); - - describe('writeBytesWithLength', () => { - it('should successfully write short, nested array of bytes when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex(new Buffer(shortTestBytesAsBuffer.byteLength)); - const bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - testBytesOffset, - shortData, - ); - const bytesRead = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytesRead).to.be.equal(shortData); - }); - it('should successfully write short, nested array of bytes when it is offset in the array', async () => { - // Write a prefix to the array - const prefixData = '0xabcdef'; - const prefixDataAsBuffer = ethUtil.toBuffer(prefixData); - const prefixOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex( - new Buffer(prefixDataAsBuffer.byteLength + shortTestBytesAsBuffer.byteLength), - ); - let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - prefixOffset, - prefixData, - ); - // Write data after prefix - const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - bytesWritten, - testBytesOffset, - shortData, - ); - // Read data after prefix and validate - const bytes = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytes).to.be.equal(shortData); - }); - it('should successfully write a nested array of bytes - one word in length - when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex(new Buffer(wordOfTestBytesAsBuffer.byteLength)); - const bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - testBytesOffset, - wordOfData, - ); - const bytesRead = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytesRead).to.be.equal(wordOfData); - }); - it('should successfully write a nested array of bytes - one word in length - when it is offset in the array', async () => { - // Write a prefix to the array - const prefixData = '0xabcdef'; - const prefixDataAsBuffer = ethUtil.toBuffer(prefixData); - const prefixOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex( - new Buffer(prefixDataAsBuffer.byteLength + wordOfTestBytesAsBuffer.byteLength), - ); - let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - prefixOffset, - prefixData, - ); - // Write data after prefix - const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - bytesWritten, - testBytesOffset, - wordOfData, - ); - // Read data after prefix and validate - const bytes = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytes).to.be.equal(wordOfData); - }); - it('should successfully write a long, nested bytes when it takes up the whole array', async () => { - const testBytesOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex(new Buffer(longTestBytesAsBuffer.byteLength)); - const bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - testBytesOffset, - longData, - ); - const bytesRead = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytesRead).to.be.equal(longData); - }); - it('should successfully write long, nested array of bytes when it is offset in the array', async () => { - // Write a prefix to the array - const prefixData = '0xabcdef'; - const prefixDataAsBuffer = ethUtil.toBuffer(prefixData); - const prefixOffset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex( - new Buffer(prefixDataAsBuffer.byteLength + longTestBytesAsBuffer.byteLength), - ); - let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( - emptyByteArray, - prefixOffset, - prefixData, - ); - // Write data after prefix - const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync(bytesWritten, testBytesOffset, longData); - // Read data after prefix and validate - const bytes = await libBytes.publicReadBytesWithLength.callAsync(bytesWritten, testBytesOffset); - return expect(bytes).to.be.equal(longData); - }); - it('should fail if the byte array is too short to hold the length of a nested byte array', async () => { - const offset = new BigNumber(0); - const emptyByteArray = ethUtil.bufferToHex(new Buffer(1)); - return expectContractCallFailedAsync( - libBytes.publicWriteBytesWithLength.callAsync(emptyByteArray, offset, longData), - RevertReason.LibBytesGreaterOrEqualToNestedBytesLengthRequired, - ); - }); - it('should fail if the length between the offset and end of the byte array is too short to hold the length of a nested byte array', async () => { - const emptyByteArray = ethUtil.bufferToHex(new Buffer(shortTestBytesAsBuffer.byteLength)); - const badOffset = new BigNumber(ethUtil.toBuffer(shortTestBytesAsBuffer).byteLength); - return expectContractCallFailedAsync( - libBytes.publicWriteBytesWithLength.callAsync(emptyByteArray, badOffset, shortData), - RevertReason.LibBytesGreaterOrEqualToNestedBytesLengthRequired, - ); - }); - }); - - describe('memCopy', () => { - // Create memory 0x000102...FF - const memSize = 256; - // tslint:disable:no-shadowed-variable - const memory = new Uint8Array(memSize).map((_, i) => i); - const memHex = toHex(memory); - - // Reference implementation to test against - const refMemcpy = (mem: Uint8Array, dest: number, source: number, length: number): Uint8Array => - Uint8Array.from(mem).copyWithin(dest, source, source + length); - - // Test vectors: destination, source, length, job description - type Tests = Array<[number, number, number, string]>; - - const test = (tests: Tests) => - tests.forEach(([dest, source, length, job]) => - it(job, async () => { - const expected = refMemcpy(memory, dest, source, length); - const resultStr = await libBytes.testMemcpy.callAsync( - memHex, - new BigNumber(dest), - new BigNumber(source), - new BigNumber(length), - ); - const result = fromHex(resultStr); - expect(result).to.deep.equal(expected); - }), - ); - - test([[0, 0, 0, 'copies zero bytes with overlap']]); - - describe('copies forward', () => - test([ - [128, 0, 0, 'zero bytes'], - [128, 0, 1, 'one byte'], - [128, 0, 11, 'eleven bytes'], - [128, 0, 31, 'thirty-one bytes'], - [128, 0, 32, 'one word'], - [128, 0, 64, 'two words'], - [128, 0, 96, 'three words'], - [128, 0, 33, 'one word and one byte'], - [128, 0, 72, 'two words and eight bytes'], - [128, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward within one word', () => - test([ - [16, 0, 0, 'zero bytes'], - [16, 0, 1, 'one byte'], - [16, 0, 11, 'eleven bytes'], - [16, 0, 16, 'sixteen bytes'], - ])); - - describe('copies forward with one byte overlap', () => - test([ - [0, 0, 1, 'one byte'], - [10, 0, 11, 'eleven bytes'], - [30, 0, 31, 'thirty-one bytes'], - [31, 0, 32, 'one word'], - [32, 0, 33, 'one word and one byte'], - [71, 0, 72, 'two words and eight bytes'], - [99, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward with thirty-one bytes overlap', () => - test([ - [0, 0, 31, 'thirty-one bytes'], - [1, 0, 32, 'one word'], - [2, 0, 33, 'one word and one byte'], - [41, 0, 72, 'two words and eight bytes'], - [69, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward with one word overlap', () => - test([ - [0, 0, 32, 'one word'], - [1, 0, 33, 'one word and one byte'], - [41, 0, 72, 'two words and eight bytes'], - [69, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward with one word and one byte overlap', () => - test([ - [0, 0, 33, 'one word and one byte'], - [40, 0, 72, 'two words and eight bytes'], - [68, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward with two words overlap', () => - test([ - [0, 0, 64, 'two words'], - [8, 0, 72, 'two words and eight bytes'], - [36, 0, 100, 'three words and four bytes'], - ])); - - describe('copies forward within one word and one byte overlap', () => - test([[0, 0, 1, 'one byte'], [10, 0, 11, 'eleven bytes'], [15, 0, 16, 'sixteen bytes']])); - - describe('copies backward', () => - test([ - [0, 128, 0, 'zero bytes'], - [0, 128, 1, 'one byte'], - [0, 128, 11, 'eleven bytes'], - [0, 128, 31, 'thirty-one bytes'], - [0, 128, 32, 'one word'], - [0, 128, 64, 'two words'], - [0, 128, 96, 'three words'], - [0, 128, 33, 'one word and one byte'], - [0, 128, 72, 'two words and eight bytes'], - [0, 128, 100, 'three words and four bytes'], - ])); - - describe('copies backward within one word', () => - test([ - [0, 16, 0, 'zero bytes'], - [0, 16, 1, 'one byte'], - [0, 16, 11, 'eleven bytes'], - [0, 16, 16, 'sixteen bytes'], - ])); - - describe('copies backward with one byte overlap', () => - test([ - [0, 0, 1, 'one byte'], - [0, 10, 11, 'eleven bytes'], - [0, 30, 31, 'thirty-one bytes'], - [0, 31, 32, 'one word'], - [0, 32, 33, 'one word and one byte'], - [0, 71, 72, 'two words and eight bytes'], - [0, 99, 100, 'three words and four bytes'], - ])); - - describe('copies backward with thirty-one bytes overlap', () => - test([ - [0, 0, 31, 'thirty-one bytes'], - [0, 1, 32, 'one word'], - [0, 2, 33, 'one word and one byte'], - [0, 41, 72, 'two words and eight bytes'], - [0, 69, 100, 'three words and four bytes'], - ])); - - describe('copies backward with one word overlap', () => - test([ - [0, 0, 32, 'one word'], - [0, 1, 33, 'one word and one byte'], - [0, 41, 72, 'two words and eight bytes'], - [0, 69, 100, 'three words and four bytes'], - ])); - - describe('copies backward with one word and one byte overlap', () => - test([ - [0, 0, 33, 'one word and one byte'], - [0, 40, 72, 'two words and eight bytes'], - [0, 68, 100, 'three words and four bytes'], - ])); - - describe('copies backward with two words overlap', () => - test([ - [0, 0, 64, 'two words'], - [0, 8, 72, 'two words and eight bytes'], - [0, 36, 100, 'three words and four bytes'], - ])); - - describe('copies forward within one word and one byte overlap', () => - test([[0, 0, 1, 'one byte'], [0, 10, 11, 'eleven bytes'], [0, 15, 16, 'sixteen bytes']])); - }); -}); -// tslint:disable:max-file-line-count diff --git a/contracts/utils/test/libs.ts b/contracts/utils/test/libs.ts deleted file mode 100644 index 81596b2e4..000000000 --- a/contracts/utils/test/libs.ts +++ /dev/null @@ -1,34 +0,0 @@ -import { chaiSetup, provider, txDefaults, web3Wrapper } from '@0x/contracts-test-utils'; -import { BlockchainLifecycle } from '@0x/dev-utils'; -import * as chai from 'chai'; - -import { TestConstantsContract } from '../generated-wrappers/test_constants'; -import { artifacts } from '../src'; - -chaiSetup.configure(); -const expect = chai.expect; - -const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); - -describe('Libs', () => { - beforeEach(async () => { - await blockchainLifecycle.startAsync(); - }); - afterEach(async () => { - await blockchainLifecycle.revertAsync(); - }); - - describe('LibConstants', () => { - describe('ZRX_ASSET_DATA', () => { - it('should have the correct ZRX_ASSET_DATA', async () => { - const testConstants = await TestConstantsContract.deployFrom0xArtifactAsync( - artifacts.TestConstants, - provider, - txDefaults, - ); - const isValid = await testConstants.assertValidZrxAssetData.callAsync(); - expect(isValid).to.be.equal(true); - }); - }); - }); -}); diff --git a/contracts/utils/tsconfig.json b/contracts/utils/tsconfig.json deleted file mode 100644 index 68251e6b0..000000000 --- a/contracts/utils/tsconfig.json +++ /dev/null @@ -1,19 +0,0 @@ -{ - "extends": "../../tsconfig", - "compilerOptions": { - "outDir": "lib", - "rootDir": ".", - "resolveJsonModule": true - }, - "include": ["./src/**/*", "./test/**/*", "./generated-wrappers/**/*"], - "files": [ - "./generated-artifacts/TestConstants.json", - "./generated-artifacts/TestLibBytes.json", - "./generated-artifacts/IOwnable.json", - "./generated-artifacts/Ownable.json", - "./generated-artifacts/LibBytes.json", - "./generated-artifacts/SafeMath.json", - "./generated-artifacts/ReentrancyGuard.json" - ], - "exclude": ["./deploy/solc/solc_bin"] -} diff --git a/contracts/utils/tslint.json b/contracts/utils/tslint.json deleted file mode 100644 index 1bb3ac2a2..000000000 --- a/contracts/utils/tslint.json +++ /dev/null @@ -1,6 +0,0 @@ -{ - "extends": ["@0x/tslint-config"], - "rules": { - "custom-no-magic-numbers": false - } -} |