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More tests for LibBytes

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This commit is contained in:
Greg Hysen
2018-08-29 13:14:51 -07:00
parent 8c803ab232
commit 62b93cf2eb
1 changed files with 16 additions and 3 deletions
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19
packages/contracts/test/libraries/lib_bytes.ts
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@@ -42,7 +42,7 @@ describe('LibBytes', () => {
const testUint256 = new BigNumber(testBytes32, 16);
const testUint256B = new BigNumber(testBytes32B, 16);
const testBytes4 = '0xabcdef12';
const testBytes4B = new BigNumber(testBytes4, 16);
const testByte = '0xab';
let shortData: string;
let shortTestBytes: string;
let shortTestBytesAsBuffer: Buffer;
@@ -108,13 +108,19 @@ describe('LibBytes', () => {
RevertReason.LibBytesGreaterThanZeroLengthRequired,
);
});
it('should pop the last byte from the input and return it', async () => {
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${byteArrayLongerThan32Bytes.slice(-2)}`;
expect(newBytes).to.equal(expectedNewBytes);
expect(poppedByte).to.equal(expectedPoppedByte);
});
it('should pop the last byte from the input and return it when array is exactly one', async () => {
const [newBytes, poppedByte] = await libBytes.publicPopLastByte.callAsync(testByte);
const expectedNewBytes = '0x';
expect(newBytes).to.equal(expectedNewBytes);
return expect(poppedByte).to.be.equal(testByte);
});
});
describe('popLast20Bytes', () => {
@@ -124,13 +130,20 @@ describe('LibBytes', () => {
RevertReason.LibBytesGreaterOrEqualTo20LengthRequired,
);
});
it('should pop the last 20 bytes from the input and return it', async () => {
it('should pop the last 20 bytes from the input and return it when array holds more than one byte', async () => {
const [newBytes, poppedAddress] = await libBytes.publicPopLast20Bytes.callAsync(byteArrayLongerThan32Bytes);
const expectedNewBytes = byteArrayLongerThan32Bytes.slice(0, -40);
const expectedPoppedAddress = `0x${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', () => {