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@0x/contracts-erc20-bridge-aggregator: Create package.

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`@0x/contracts-erc20`: Add `decimals()` to `LibERC20Token`.

`@0x/contracts-erc20-bridge-sampler`: Created package.
This commit is contained in:
Lawrence Forman
2019-10-17 20:42:53 -04:00
parent c3c8ee7292
commit 0af346aad8
24 changed files with 972 additions and 28 deletions
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88
contracts/erc20/test/lib_erc20_token.ts
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@@ -16,6 +16,7 @@ import { artifacts } from './artifacts';
blockchainTests('LibERC20Token', env => {
let testContract: TestLibERC20TokenContract;
const REVERT_STRING = 'WHOOPSIE';
const ENCODED_REVERT = new StringRevertError(REVERT_STRING).encode();
const ENCODED_TRUE = hexLeftPad(1);
const ENCODED_FALSE = hexLeftPad(0);
const ENCODED_TWO = hexLeftPad(2);
@@ -31,16 +32,12 @@ blockchainTests('LibERC20Token', env => {
);
});
function encodeRevert(message: string): string {
return new StringRevertError(message).encode();
}
describe('approve()', () => {
it('calls the target with the correct arguments', async () => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const { logs } = await testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_TRUE, spender, allowance)
.awaitTransactionSuccessAsync();
expect(logs).to.be.length(1);
verifyEventsFromLogs(logs, [{ spender, allowance }], TestLibERC20TokenTargetEvents.ApproveCalled);
@@ -50,7 +47,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
await testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_TRUE, spender, allowance)
.awaitTransactionSuccessAsync();
});
@@ -58,7 +55,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
await testContract
.testApprove(false, encodeRevert(REVERT_STRING), constants.NULL_BYTES, spender, allowance)
.testApprove(false, ENCODED_REVERT, constants.NULL_BYTES, spender, allowance)
.awaitTransactionSuccessAsync();
});
@@ -66,7 +63,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const tx = testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_FALSE, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_FALSE, spender, allowance)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_FALSE);
return expect(tx).to.revertWith(expectedError);
@@ -76,7 +73,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const tx = testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_TWO, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_TWO, spender, allowance)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_TWO);
return expect(tx).to.revertWith(expectedError);
@@ -86,7 +83,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const tx = testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_SHORT_TRUE, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_SHORT_TRUE, spender, allowance)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_SHORT_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -96,7 +93,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const tx = testContract
.testApprove(false, encodeRevert(REVERT_STRING), ENCODED_LONG_TRUE, spender, allowance)
.testApprove(false, ENCODED_REVERT, ENCODED_LONG_TRUE, spender, allowance)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_LONG_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -106,7 +103,7 @@ blockchainTests('LibERC20Token', env => {
const spender = randomAddress();
const allowance = getRandomInteger(0, 100e18);
const tx = testContract
.testApprove(true, encodeRevert(REVERT_STRING), ENCODED_TRUE, spender, allowance)
.testApprove(true, ENCODED_REVERT, ENCODED_TRUE, spender, allowance)
.awaitTransactionSuccessAsync();
return expect(tx).to.revertWith(REVERT_STRING);
});
@@ -126,7 +123,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const { logs } = await testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_TRUE, to, amount)
.awaitTransactionSuccessAsync();
expect(logs).to.be.length(1);
verifyEventsFromLogs(logs, [{ to, amount }], TestLibERC20TokenTargetEvents.TransferCalled);
@@ -136,7 +133,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
await testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_TRUE, to, amount)
.awaitTransactionSuccessAsync();
});
@@ -144,7 +141,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
await testContract
.testTransfer(false, encodeRevert(REVERT_STRING), constants.NULL_BYTES, to, amount)
.testTransfer(false, ENCODED_REVERT, constants.NULL_BYTES, to, amount)
.awaitTransactionSuccessAsync();
});
@@ -152,7 +149,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_FALSE, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_FALSE, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_FALSE);
return expect(tx).to.revertWith(expectedError);
@@ -162,7 +159,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_TWO, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_TWO, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_TWO);
return expect(tx).to.revertWith(expectedError);
@@ -172,7 +169,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_SHORT_TRUE, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_SHORT_TRUE, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_SHORT_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -182,7 +179,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransfer(false, encodeRevert(REVERT_STRING), ENCODED_LONG_TRUE, to, amount)
.testTransfer(false, ENCODED_REVERT, ENCODED_LONG_TRUE, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_LONG_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -192,7 +189,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransfer(true, encodeRevert(REVERT_STRING), ENCODED_TRUE, to, amount)
.testTransfer(true, ENCODED_REVERT, ENCODED_TRUE, to, amount)
.awaitTransactionSuccessAsync();
return expect(tx).to.revertWith(REVERT_STRING);
});
@@ -213,7 +210,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const { logs } = await testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_TRUE, owner, to, amount)
.awaitTransactionSuccessAsync();
expect(logs).to.be.length(1);
verifyEventsFromLogs(logs, [{ from: owner, to, amount }], TestLibERC20TokenTargetEvents.TransferFromCalled);
@@ -224,7 +221,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
await testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_TRUE, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_TRUE, owner, to, amount)
.awaitTransactionSuccessAsync();
});
@@ -233,7 +230,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
await testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), constants.NULL_BYTES, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, constants.NULL_BYTES, owner, to, amount)
.awaitTransactionSuccessAsync();
});
@@ -242,7 +239,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_FALSE, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_FALSE, owner, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_FALSE);
return expect(tx).to.revertWith(expectedError);
@@ -253,7 +250,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_TWO, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_TWO, owner, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_TWO);
return expect(tx).to.revertWith(expectedError);
@@ -264,7 +261,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_SHORT_TRUE, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_SHORT_TRUE, owner, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_SHORT_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -275,7 +272,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransferFrom(false, encodeRevert(REVERT_STRING), ENCODED_LONG_TRUE, owner, to, amount)
.testTransferFrom(false, ENCODED_REVERT, ENCODED_LONG_TRUE, owner, to, amount)
.awaitTransactionSuccessAsync();
const expectedError = new RawRevertError(ENCODED_LONG_TRUE);
return expect(tx).to.revertWith(expectedError);
@@ -286,7 +283,7 @@ blockchainTests('LibERC20Token', env => {
const to = randomAddress();
const amount = getRandomInteger(0, 100e18);
const tx = testContract
.testTransferFrom(true, encodeRevert(REVERT_STRING), ENCODED_TRUE, owner, to, amount)
.testTransferFrom(true, ENCODED_REVERT, ENCODED_TRUE, owner, to, amount)
.awaitTransactionSuccessAsync();
return expect(tx).to.revertWith(REVERT_STRING);
});
@@ -301,4 +298,39 @@ blockchainTests('LibERC20Token', env => {
return expect(tx).to.be.rejectedWith('revert');
});
});
describe('decimals()', () => {
const DEFAULT_DECIMALS = 18;
const ENCODED_ZERO = hexLeftPad(0);
const ENCODED_SHORT_ZERO = hexLeftPad(0, 31);
const ENCODED_LONG_ZERO = hexLeftPad(0, 33);
const randomDecimals = () => Math.floor(Math.random() * 256) + 1;
it('returns the number of decimals defined by the token', async () => {
const decimals = randomDecimals();
const encodedDecimals = hexLeftPad(decimals);
const result = await testContract.testDecimals(false, ENCODED_REVERT, encodedDecimals).callAsync();
return expect(result).to.bignumber.eq(decimals);
});
it('returns 0 if the token returns 0', async () => {
const result = await testContract.testDecimals(false, ENCODED_REVERT, ENCODED_ZERO).callAsync();
return expect(result).to.bignumber.eq(0);
});
it('returns 18 if the token returns less than 32 bytes', async () => {
const result = await testContract.testDecimals(false, ENCODED_REVERT, ENCODED_SHORT_ZERO).callAsync();
return expect(result).to.bignumber.eq(DEFAULT_DECIMALS);
});
it('returns 18 if the token returns greater than 32 bytes', async () => {
const result = await testContract.testDecimals(false, ENCODED_REVERT, ENCODED_LONG_ZERO).callAsync();
return expect(result).to.bignumber.eq(DEFAULT_DECIMALS);
});
it('returns 18 if the token reverts', async () => {
const result = await testContract.testDecimals(true, ENCODED_REVERT, ENCODED_ZERO).callAsync();
return expect(result).to.bignumber.eq(DEFAULT_DECIMALS);
});
});
});