From 622509c508272790e3e69c09cf1a1f9696815147 Mon Sep 17 00:00:00 2001 From: Jacob Evans Date: Mon, 13 Aug 2018 12:23:29 +1000 Subject: [Order-utils] Order is valid when maker amount is very small Previously our min fillable calculation would throw a rounding error when encountering a valid order (with a small maker amount). This was inconsistent with the on-chain logic which allowed this order to be filled. --- packages/contracts/test/exchange/fill_order.ts | 11 +++++++++++ .../test/utils/fill_order_combinatorial_utils.ts | 7 +++++++ .../test/utils/order_factory_from_scenario.ts | 23 ++++++++++++++++++++++ packages/contracts/test/utils/types.ts | 3 ++- 4 files changed, 43 insertions(+), 1 deletion(-) (limited to 'packages/contracts') diff --git a/packages/contracts/test/exchange/fill_order.ts b/packages/contracts/test/exchange/fill_order.ts index 1494fe093..e79e2239e 100644 --- a/packages/contracts/test/exchange/fill_order.ts +++ b/packages/contracts/test/exchange/fill_order.ts @@ -104,6 +104,17 @@ describe('FillOrder Tests', () => { }; await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); }); + it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount with zero decimals', async () => { + const fillScenario = { + ...defaultFillScenario, + orderScenario: { + ...defaultFillScenario.orderScenario, + makerAssetAmountScenario: OrderAssetAmountScenario.Small, + makerAssetDataScenario: AssetDataScenario.ERC20ZeroDecimals, + }, + }; + await fillOrderCombinatorialUtils.testFillOrderScenarioAsync(provider, fillScenario); + }); it('should transfer the correct amounts when taker is specified and order is claimed by taker', async () => { const fillScenario = { ...defaultFillScenario, diff --git a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts index 284c4a2db..f18ad0dd3 100644 --- a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts +++ b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts @@ -81,6 +81,12 @@ export async function fillOrderCombinatorialUtilsFactoryAsync( erc20FiveDecimalTokenCount, fiveDecimals, ); + const zeroDecimals = new BigNumber(0); + const erc20ZeroDecimalTokenCount = 2; + const [erc20ZeroDecimalTokenA, erc20ZeroDecimalTokenB] = await erc20Wrapper.deployDummyTokensAsync( + erc20ZeroDecimalTokenCount, + zeroDecimals, + ); const erc20Proxy = await erc20Wrapper.deployProxyAsync(); await erc20Wrapper.setBalancesAndAllowancesAsync(); @@ -119,6 +125,7 @@ export async function fillOrderCombinatorialUtilsFactoryAsync( zrxToken.address, [erc20EighteenDecimalTokenA.address, erc20EighteenDecimalTokenB.address], [erc20FiveDecimalTokenA.address, erc20FiveDecimalTokenB.address], + [erc20ZeroDecimalTokenA.address, erc20ZeroDecimalTokenB.address], erc721Token, erc721Balances, exchangeContract.address, diff --git a/packages/contracts/test/utils/order_factory_from_scenario.ts b/packages/contracts/test/utils/order_factory_from_scenario.ts index a908140b9..8e04db588 100644 --- a/packages/contracts/test/utils/order_factory_from_scenario.ts +++ b/packages/contracts/test/utils/order_factory_from_scenario.ts @@ -21,6 +21,8 @@ const POINT_ONE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(100_000_000_000_000_000) const POINT_ZERO_FIVE_UNITS_EIGHTEEN_DECIMALS = new BigNumber(50_000_000_000_000_000); const TEN_UNITS_FIVE_DECIMALS = new BigNumber(1_000_000); const FIVE_UNITS_FIVE_DECIMALS = new BigNumber(500_000); +const TEN_UNITS_ZERO_DECIMALS = new BigNumber(10); +const ONE_THOUSAND_UNITS_ZERO_DECIMALS = new BigNumber(1000); const ONE_NFT_UNIT = new BigNumber(1); export class OrderFactoryFromScenario { @@ -28,6 +30,7 @@ export class OrderFactoryFromScenario { private readonly _zrxAddress: string; private readonly _nonZrxERC20EighteenDecimalTokenAddresses: string[]; private readonly _erc20FiveDecimalTokenAddresses: string[]; + private readonly _erc20ZeroDecimalTokenAddresses: string[]; private readonly _erc721Token: DummyERC721TokenContract; private readonly _erc721Balances: ERC721TokenIdsByOwner; private readonly _exchangeAddress: string; @@ -36,6 +39,7 @@ export class OrderFactoryFromScenario { zrxAddress: string, nonZrxERC20EighteenDecimalTokenAddresses: string[], erc20FiveDecimalTokenAddresses: string[], + erc20ZeroDecimalTokenAddresses: string[], erc721Token: DummyERC721TokenContract, erc721Balances: ERC721TokenIdsByOwner, exchangeAddress: string, @@ -44,6 +48,7 @@ export class OrderFactoryFromScenario { this._zrxAddress = zrxAddress; this._nonZrxERC20EighteenDecimalTokenAddresses = nonZrxERC20EighteenDecimalTokenAddresses; this._erc20FiveDecimalTokenAddresses = erc20FiveDecimalTokenAddresses; + this._erc20ZeroDecimalTokenAddresses = erc20ZeroDecimalTokenAddresses; this._erc721Token = erc721Token; this._erc721Balances = erc721Balances; this._exchangeAddress = exchangeAddress; @@ -89,6 +94,9 @@ export class OrderFactoryFromScenario { erc721MakerAssetIds[0], ); break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20ZeroDecimalTokenAddresses[0]); + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); } @@ -109,6 +117,9 @@ export class OrderFactoryFromScenario { erc721TakerAssetIds[0], ); break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetData = assetDataUtils.encodeERC20AssetData(this._erc20ZeroDecimalTokenAddresses[1]); + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); } @@ -126,6 +137,9 @@ export class OrderFactoryFromScenario { case AssetDataScenario.ERC721: makerAssetAmount = ONE_NFT_UNIT; break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetAmount = ONE_THOUSAND_UNITS_ZERO_DECIMALS; + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); } @@ -142,6 +156,9 @@ export class OrderFactoryFromScenario { case AssetDataScenario.ERC721: makerAssetAmount = ONE_NFT_UNIT; break; + case AssetDataScenario.ERC20ZeroDecimals: + makerAssetAmount = TEN_UNITS_ZERO_DECIMALS; + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.makerAssetDataScenario); } @@ -166,6 +183,9 @@ export class OrderFactoryFromScenario { case AssetDataScenario.ERC721: takerAssetAmount = ONE_NFT_UNIT; break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetAmount = ONE_THOUSAND_UNITS_ZERO_DECIMALS; + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); } @@ -182,6 +202,9 @@ export class OrderFactoryFromScenario { case AssetDataScenario.ERC721: takerAssetAmount = ONE_NFT_UNIT; break; + case AssetDataScenario.ERC20ZeroDecimals: + takerAssetAmount = TEN_UNITS_ZERO_DECIMALS; + break; default: throw errorUtils.spawnSwitchErr('AssetDataScenario', orderScenario.takerAssetDataScenario); } diff --git a/packages/contracts/test/utils/types.ts b/packages/contracts/test/utils/types.ts index 67313b647..481ee87d6 100644 --- a/packages/contracts/test/utils/types.ts +++ b/packages/contracts/test/utils/types.ts @@ -177,10 +177,11 @@ export enum ExpirationTimeSecondsScenario { } export enum AssetDataScenario { - ERC721 = 'ERC721', + ERC20ZeroDecimals = 'ERC20_ZERO_DECIMALS', ZRXFeeToken = 'ZRX_FEE_TOKEN', ERC20FiveDecimals = 'ERC20_FIVE_DECIMALS', ERC20NonZRXEighteenDecimals = 'ERC20_NON_ZRX_EIGHTEEN_DECIMALS', + ERC721 = 'ERC721', } export enum TakerAssetFillAmountScenario { -- cgit v1.2.3