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OrderValidationUtils: don't parse fee asset data when there are no fees specified (#2218)

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* exhibit bug: empty fee asset data induces revert

* fix bug: don't parse fee asset data unless fee>0

* Update DevUtils Kovan contract address
This commit is contained in:
F. Eugene Aumson
2019-09-30 17:53:21 -04:00
committed by GitHub
parent d21f978def
commit c051e11a49
3 changed files with 26 additions and 4 deletions
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6
contracts/dev-utils/contracts/src/OrderValidationUtils.sol
View File

@@ -86,9 +86,6 @@ contract OrderValidationUtils is
takerAssetAmount
);
} else {
// Get the transferable amount of the `makerFeeAsset`
uint256 transferableMakerFeeAssetAmount = getTransferableAssetAmount(makerAddress, order.makerFeeAssetData);
// If `makerFee` is 0, the % that can be filled is (transferableMakerAssetAmount / makerAssetAmount)
if (makerFee == 0) {
transferableTakerAssetAmount = LibMath.getPartialAmountFloor(
@@ -100,6 +97,9 @@ contract OrderValidationUtils is
// If `makerAsset` does not equal `makerFeeAsset`, the % that can be filled is the lower of
// (transferableMakerAssetAmount / makerAssetAmount) and (transferableMakerAssetFeeAmount / makerFee)
} else {
// Get the transferable amount of the `makerFeeAsset`
uint256 transferableMakerFeeAssetAmount = getTransferableAssetAmount(makerAddress, order.makerFeeAssetData);
uint256 transferableMakerToTakerAmount = LibMath.getPartialAmountFloor(
transferableMakerAssetAmount,
order.makerAssetAmount,

22
contracts/dev-utils/test/order_validation_utils.ts
View File

@@ -410,6 +410,28 @@ describe('OrderValidationUtils/OrderTransferSimulatorUtils', () => {
signedOrder.takerAssetAmount.minus(takerAssetFillAmount),
);
});
it('should return correct info even when there are no fees specified', async () => {
signedOrder = await orderFactory.newSignedOrderAsync({
makerFee: new BigNumber(0),
takerFee: new BigNumber(0),
makerFeeAssetData: '0x',
takerFeeAssetData: '0x',
});
await erc20Token.setBalance.awaitTransactionSuccessAsync(makerAddress, signedOrder.makerAssetAmount);
await erc20Token.approve.awaitTransactionSuccessAsync(erc20Proxy.address, signedOrder.makerAssetAmount, {
from: makerAddress,
});
const [
orderInfo,
fillableTakerAssetAmount,
isValidSignature,
] = await devUtils.getOrderRelevantState.callAsync(signedOrder, signedOrder.signature);
expect(orderInfo.orderHash).to.equal(orderHashUtils.getOrderHashHex(signedOrder));
expect(orderInfo.orderStatus).to.equal(OrderStatus.Fillable);
expect(orderInfo.orderTakerAssetFilledAmount).to.bignumber.equal(constants.ZERO_AMOUNT);
expect(fillableTakerAssetAmount).to.bignumber.equal(signedOrder.takerAssetAmount);
expect(isValidSignature).to.equal(true);
});
});
describe('getOrderRelevantStates', async () => {
it('should return the correct information for multiple orders', async () => {