diff options
Diffstat (limited to 'packages/contracts/test/libraries')
| -rw-r--r-- | packages/contracts/test/libraries/lib_bytes.ts | 301 | ||||
| -rw-r--r-- | packages/contracts/test/libraries/lib_mem.ts | 190 |
2 files changed, 256 insertions, 235 deletions
diff --git a/packages/contracts/test/libraries/lib_bytes.ts b/packages/contracts/test/libraries/lib_bytes.ts index 7db0f60b5..e4b3abb7f 100644 --- a/packages/contracts/test/libraries/lib_bytes.ts +++ b/packages/contracts/test/libraries/lib_bytes.ts @@ -18,6 +18,12 @@ 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'; @@ -124,48 +130,55 @@ describe('LibBytes', () => { }); }); - describe('areBytesEqual', () => { + describe('equals', () => { it('should return true if byte arrays are equal (both arrays < 32 bytes)', async () => { - const areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayShorterThan32Bytes, byteArrayShorterThan32Bytes, ); - return expect(areBytesEqual).to.be.true(); + return expect(isEqual).to.be.true(); }); it('should return true if byte arrays are equal (both arrays > 32 bytes)', async () => { - const areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayLongerThan32Bytes, byteArrayLongerThan32Bytes, ); - return expect(areBytesEqual).to.be.true(); + 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 areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayShorterThan32Bytes, byteArrayLongerThan32Bytes, ); - return expect(areBytesEqual).to.be.false(); + 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 areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayLongerThan32Bytes, byteArrayShorterThan32Bytes, ); - return expect(areBytesEqual).to.be.false(); + 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 areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayLongerThan32BytesFirstBytesSwapped, byteArrayLongerThan32Bytes, ); - return expect(areBytesEqual).to.be.false(); + 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 areBytesEqual = await libBytes.publicAreBytesEqual.callAsync( + const isEqual = await libBytes.publicEquals.callAsync( byteArrayLongerThan32BytesLastBytesSwapped, byteArrayLongerThan32Bytes, ); - return expect(areBytesEqual).to.be.false(); + 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(); + }); }); }); @@ -444,26 +457,26 @@ describe('LibBytes', () => { }); }); - describe('readFirst4', () => { + 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'; return expectRevertOrOtherErrorAsync( - libBytes.publicReadFirst4.callAsync(byteArrayLessThan4Bytes), + libBytes.publicReadBytes4.callAsync(byteArrayLessThan4Bytes, new BigNumber(0)), RevertReasons.LibBytesGreaterOrEqualTo4LengthRequired, ); }); it('should return the first 4 bytes of a byte array of arbitrary length', async () => { - const first4Bytes = await libBytes.publicReadFirst4.callAsync(byteArrayLongerThan32Bytes); + const first4Bytes = await libBytes.publicReadBytes4.callAsync(byteArrayLongerThan32Bytes, new BigNumber(0)); const expectedFirst4Bytes = byteArrayLongerThan32Bytes.slice(0, 10); expect(first4Bytes).to.equal(expectedFirst4Bytes); }); }); - describe('readBytes', () => { + 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.publicReadBytes.callAsync(shortTestBytes, testBytesOffset); + 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 () => { @@ -471,12 +484,12 @@ describe('LibBytes', () => { const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, shortTestBytesAsBuffer]); const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytes.callAsync(combinedByteArray, testUint256Offset); + 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.publicReadBytes.callAsync(wordOfTestBytes, testBytesOffset); + 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 () => { @@ -484,12 +497,12 @@ describe('LibBytes', () => { const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, wordOfTestBytesAsBuffer]); const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytes.callAsync(combinedByteArray, testUint256Offset); + 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.publicReadBytes.callAsync(longTestBytes, testBytesOffset); + 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 () => { @@ -497,46 +510,50 @@ describe('LibBytes', () => { const combinedByteArrayBuffer = Buffer.concat([prefixByteArrayBuffer, longTestBytesAsBuffer]); const combinedByteArray = ethUtil.bufferToHex(combinedByteArrayBuffer); const testUint256Offset = new BigNumber(prefixByteArrayBuffer.byteLength); - const bytes = await libBytes.publicReadBytes.callAsync(combinedByteArray, testUint256Offset); + 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 expectRevertOrOtherErrorAsync( - libBytes.publicReadBytes.callAsync(byteArrayShorterThan32Bytes, offset), + libBytes.publicReadBytesWithLength.callAsync(byteArrayShorterThan32Bytes, offset), RevertReasons.LibBytesGreaterOrEqualTo32LengthRequired, ); }); it('should fail if we store a nested byte array length, without a nested byte array', async () => { const offset = new BigNumber(0); return expectRevertOrOtherErrorAsync( - libBytes.publicReadBytes.callAsync(testBytes32, offset), + libBytes.publicReadBytesWithLength.callAsync(testBytes32, offset), RevertReasons.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 expectRevertOrOtherErrorAsync( - libBytes.publicReadBytes.callAsync(byteArrayShorterThan32Bytes, badOffset), + libBytes.publicReadBytesWithLength.callAsync(byteArrayShorterThan32Bytes, badOffset), RevertReasons.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 expectRevertOrOtherErrorAsync( - libBytes.publicReadBytes.callAsync(testBytes32, badOffset), + libBytes.publicReadBytesWithLength.callAsync(testBytes32, badOffset), RevertReasons.LibBytesGreaterOrEqualTo32LengthRequired, ); }); }); - describe('writeBytes', () => { + 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.publicWriteBytes.callAsync(emptyByteArray, testBytesOffset, shortData); - const bytesRead = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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 () => { @@ -547,19 +564,31 @@ describe('LibBytes', () => { const emptyByteArray = ethUtil.bufferToHex( new Buffer(prefixDataAsBuffer.byteLength + shortTestBytesAsBuffer.byteLength), ); - let bytesWritten = await libBytes.publicWriteBytes.callAsync(emptyByteArray, prefixOffset, prefixData); + let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( + emptyByteArray, + prefixOffset, + prefixData, + ); // Write data after prefix const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytes.callAsync(bytesWritten, testBytesOffset, shortData); + bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( + bytesWritten, + testBytesOffset, + shortData, + ); // Read data after prefix and validate - const bytes = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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.publicWriteBytes.callAsync(emptyByteArray, testBytesOffset, wordOfData); - const bytesRead = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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 () => { @@ -570,19 +599,31 @@ describe('LibBytes', () => { const emptyByteArray = ethUtil.bufferToHex( new Buffer(prefixDataAsBuffer.byteLength + wordOfTestBytesAsBuffer.byteLength), ); - let bytesWritten = await libBytes.publicWriteBytes.callAsync(emptyByteArray, prefixOffset, prefixData); + let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( + emptyByteArray, + prefixOffset, + prefixData, + ); // Write data after prefix const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytes.callAsync(bytesWritten, testBytesOffset, wordOfData); + bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( + bytesWritten, + testBytesOffset, + wordOfData, + ); // Read data after prefix and validate - const bytes = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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.publicWriteBytes.callAsync(emptyByteArray, testBytesOffset, longData); - const bytesRead = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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 () => { @@ -593,19 +634,23 @@ describe('LibBytes', () => { const emptyByteArray = ethUtil.bufferToHex( new Buffer(prefixDataAsBuffer.byteLength + longTestBytesAsBuffer.byteLength), ); - let bytesWritten = await libBytes.publicWriteBytes.callAsync(emptyByteArray, prefixOffset, prefixData); + let bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync( + emptyByteArray, + prefixOffset, + prefixData, + ); // Write data after prefix const testBytesOffset = new BigNumber(prefixDataAsBuffer.byteLength); - bytesWritten = await libBytes.publicWriteBytes.callAsync(bytesWritten, testBytesOffset, longData); + bytesWritten = await libBytes.publicWriteBytesWithLength.callAsync(bytesWritten, testBytesOffset, longData); // Read data after prefix and validate - const bytes = await libBytes.publicReadBytes.callAsync(bytesWritten, testBytesOffset); + 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 expectRevertOrOtherErrorAsync( - libBytes.publicWriteBytes.callAsync(emptyByteArray, offset, longData), + libBytes.publicWriteBytesWithLength.callAsync(emptyByteArray, offset, longData), RevertReasons.LibBytesGreaterOrEqualToNestedBytesLengthRequired, ); }); @@ -613,10 +658,176 @@ describe('LibBytes', () => { const emptyByteArray = ethUtil.bufferToHex(new Buffer(shortTestBytesAsBuffer.byteLength)); const badOffset = new BigNumber(ethUtil.toBuffer(shortTestBytesAsBuffer).byteLength); return expectRevertOrOtherErrorAsync( - libBytes.publicWriteBytes.callAsync(emptyByteArray, badOffset, shortData), + libBytes.publicWriteBytesWithLength.callAsync(emptyByteArray, badOffset, shortData), RevertReasons.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/packages/contracts/test/libraries/lib_mem.ts b/packages/contracts/test/libraries/lib_mem.ts deleted file mode 100644 index 00f7c4d8b..000000000 --- a/packages/contracts/test/libraries/lib_mem.ts +++ /dev/null @@ -1,190 +0,0 @@ -import { BigNumber } from '@0xproject/utils'; -import * as chai from 'chai'; - -import { TestLibMemContract } from '../../src/generated_contract_wrappers/test_lib_mem'; -import { artifacts } from '../../src/utils/artifacts'; -import { chaiSetup } from '../../src/utils/chai_setup'; -import { provider, txDefaults } from '../../src/utils/web3_wrapper'; - -chaiSetup.configure(); -const expect = chai.expect; - -// 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('LibMem', () => { - let testLibMem: TestLibMemContract; - - before(async () => { - // Deploy TestLibMem - testLibMem = await TestLibMemContract.deployFrom0xArtifactAsync(artifacts.TestLibMem, provider, txDefaults); - }); - - describe('memCopy', () => { - // Create memory 0x000102...FF - const memSize = 256; - 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(memory).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 testLibMem.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']])); - }); -}); |