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Diffstat (limited to 'packages/contracts/test/libraries/lib_bytes.ts')
| -rw-r--r-- | packages/contracts/test/libraries/lib_bytes.ts | 871 |
1 files changed, 0 insertions, 871 deletions
diff --git a/packages/contracts/test/libraries/lib_bytes.ts b/packages/contracts/test/libraries/lib_bytes.ts deleted file mode 100644 index b1a389f00..000000000 --- a/packages/contracts/test/libraries/lib_bytes.ts +++ /dev/null @@ -1,871 +0,0 @@ -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/artifacts'; -import { expectContractCallFailedAsync } from '../utils/assertions'; -import { chaiSetup } from '../utils/chai_setup'; -import { constants } from '../utils/constants'; -import { typeEncodingUtils } from '../utils/type_encoding_utils'; -import { provider, txDefaults, web3Wrapper } from '../utils/web3_wrapper'; - -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 |