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authorGreg Hysen <greg.hysen@gmail.com>2018-08-21 08:00:08 +0800
committerGreg Hysen <greg.hysen@gmail.com>2018-08-25 09:17:27 +0800
commita32b201afe6c90a6bd06b88a5d512408cd3cb032 (patch)
treee8e8690ed524c14fcedea9f82cb9f4a2ca69f6c4 /packages/contracts/test/utils
parent0ecdf1e2132141b199fa929ec1c6ca9979f06302 (diff)
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Rounding for fees in match orders addressed, plus example
Diffstat (limited to 'packages/contracts/test/utils')
-rw-r--r--packages/contracts/test/utils/match_order_tester.ts84
1 files changed, 79 insertions, 5 deletions
diff --git a/packages/contracts/test/utils/match_order_tester.ts b/packages/contracts/test/utils/match_order_tester.ts
index ded429322..5160b47d3 100644
--- a/packages/contracts/test/utils/match_order_tester.ts
+++ b/packages/contracts/test/utils/match_order_tester.ts
@@ -139,7 +139,78 @@ export class MatchOrderTester {
newERC721TokenIdsByOwner,
);
+ // Compute actual transfer amounts
+ let actualTransferAmounts = <TransferAmounts>{};
+ const makerAssetProxyIdLeft = assetDataUtils.decodeAssetProxyId(signedOrderLeft.makerAssetData);
+ if (makerAssetProxyIdLeft === AssetProxyId.ERC20) {
+ const erc20AssetData = assetDataUtils.decodeERC20AssetData(signedOrderLeft.makerAssetData);
+ const makerAssetAddressLeft = erc20AssetData.tokenAddress;
+ actualTransferAmounts.amountSoldByLeftMaker = erc20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft].sub(newERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressLeft]);
+ actualTransferAmounts.amountBoughtByRightMaker = newERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft].sub(erc20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressLeft]);
+ actualTransferAmounts.amountReceivedByRightMaker = actualTransferAmounts.amountBoughtByRightMaker;
+ actualTransferAmounts.amountReceivedByTaker = newERC20BalancesByOwner[takerAddress][makerAssetAddressLeft].sub(erc20BalancesByOwner[takerAddress][makerAssetAddressLeft]);
+ } else if(makerAssetProxyIdLeft === AssetProxyId.ERC721) {
+ }
+ const makerAssetProxyIdRight = assetDataUtils.decodeAssetProxyId(signedOrderRight.makerAssetData);
+ if (makerAssetProxyIdRight === AssetProxyId.ERC20) {
+ const erc20AssetData = assetDataUtils.decodeERC20AssetData(signedOrderRight.makerAssetData);
+ const makerAssetAddressRight = erc20AssetData.tokenAddress;
+ actualTransferAmounts.amountSoldByRightMaker = erc20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressRight].sub(newERC20BalancesByOwner[signedOrderRight.makerAddress][makerAssetAddressRight]);
+ actualTransferAmounts.amountBoughtByLeftMaker = newERC20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight].sub(erc20BalancesByOwner[signedOrderLeft.makerAddress][makerAssetAddressRight]);
+ actualTransferAmounts.amountReceivedByLeftMaker = actualTransferAmounts.amountBoughtByLeftMaker;
+ } else if(makerAssetProxyIdRight === AssetProxyId.ERC721) {
+ }
+ // Fees
+ actualTransferAmounts.feePaidByLeftMaker = erc20BalancesByOwner[signedOrderLeft.makerAddress][this._feeTokenAddress].sub(newERC20BalancesByOwner[signedOrderLeft.makerAddress][this._feeTokenAddress]);
+ actualTransferAmounts.feePaidByRightMaker = erc20BalancesByOwner[signedOrderRight.makerAddress][this._feeTokenAddress].sub(newERC20BalancesByOwner[signedOrderRight.makerAddress][this._feeTokenAddress]);
+ actualTransferAmounts.totalFeePaidByTaker = erc20BalancesByOwner[takerAddress][this._feeTokenAddress].sub(newERC20BalancesByOwner[takerAddress][this._feeTokenAddress]);
+
+ console.log("amountBoughtByLeftMaker");
+ expect(expectedTransferAmounts.amountBoughtByLeftMaker).to.be.bignumber.equal(actualTransferAmounts.amountBoughtByLeftMaker);
+ console.log("amountSoldByLeftMaker");
+ expect(expectedTransferAmounts.amountSoldByLeftMaker).to.be.bignumber.equal(actualTransferAmounts.amountSoldByLeftMaker);
+ console.log("amountBoughtByRightMaker");
+ expect(expectedTransferAmounts.amountBoughtByRightMaker).to.be.bignumber.equal(actualTransferAmounts.amountBoughtByRightMaker);
+ console.log("amountSoldByRightMaker");
+ expect(expectedTransferAmounts.amountSoldByRightMaker).to.be.bignumber.equal(actualTransferAmounts.amountSoldByRightMaker);
+ console.log("amountReceivedByTaker");
+ expect(expectedTransferAmounts.amountReceivedByTaker).to.be.bignumber.equal(actualTransferAmounts.amountReceivedByTaker);
+ console.log("feePaidByLeftMaker");
+ expect(expectedTransferAmounts.feePaidByLeftMaker).to.be.bignumber.equal(actualTransferAmounts.feePaidByLeftMaker);
+ console.log("feePaidByRightMaker");
+ expect(expectedTransferAmounts.feePaidByRightMaker).to.be.bignumber.equal(actualTransferAmounts.feePaidByRightMaker);
+ console.log("totalFeePaidByTaker");
+ expect(expectedTransferAmounts.totalFeePaidByTaker).to.be.bignumber.equal(actualTransferAmounts.totalFeePaidByTaker);
+
+
+
+/*
+ const actualTransferAmounts = {
+ // Left Maker
+ amountBoughtByLeftMaker,
+ amountSoldByLeftMaker,
+ amountReceivedByLeftMaker,
+ feePaidByLeftMaker,
+ // Right Maker
+ amountBoughtByRightMaker,
+ amountSoldByRightMaker,
+ amountReceivedByRightMaker,
+ feePaidByRightMaker,
+ // Taker
+ amountReceivedByTaker,
+ feePaidByTakerLeft,
+ feePaidByTakerRight,
+ totalFeePaidByTaker,
+ // Fee Recipients
+ feeReceivedLeft,
+ feeReceivedRight,
+ };*/
+
+ // This is a catch-all to ensure that no other balances changed
+ console.log("Catch-all");
expect(didExpectedBalancesMatchRealBalances).to.be.true();
+
+
return [newERC20BalancesByOwner, newERC721TokenIdsByOwner];
}
/// @dev Calculates expected transfer amounts between order makers, fee recipients, and
@@ -180,7 +251,7 @@ export class MatchOrderTester {
console.log("Amount bought by left maker = ", JSON.stringify(amountBoughtByLeftMaker));
console.log("Amount sold by left maker = ", JSON.stringify(amountSoldByLeftMaker));
console.log("Amount bought by right maker = ", JSON.stringify(amountBoughtByRightMaker));
- console.log("Amount sold by right maker = ", JSON.stringify(amountSoldByRightMaker));
+ console.log("Amount sold by right maker = ", JSON.stringify(amountSoldByRightMaker));
console.log("Amount received by taker = ", JSON.stringify(amountReceivedByTaker));
//const amountReceivedByLeftMaker = amountSoldByRightMaker;
const feePaidByLeftMaker = signedOrderLeft.makerFee
@@ -189,12 +260,15 @@ export class MatchOrderTester {
const feePaidByRightMaker = signedOrderRight.makerFee
.times(amountSoldByRightMaker)
.dividedToIntegerBy(signedOrderRight.makerAssetAmount);
+
const feePaidByTakerLeft = signedOrderLeft.takerFee
- .times(amountSoldByLeftMaker)
- .dividedToIntegerBy(signedOrderLeft.makerAssetAmount);
+ .times(amountBoughtByLeftMaker)
+ .dividedToIntegerBy(signedOrderLeft.takerAssetAmount);
+
+
const feePaidByTakerRight = signedOrderRight.takerFee
- .times(amountSoldByRightMaker)
- .dividedToIntegerBy(signedOrderRight.makerAssetAmount);
+ .times(amountBoughtByRightMaker)
+ .dividedToIntegerBy(signedOrderRight.takerAssetAmount);
const totalFeePaidByTaker = feePaidByTakerLeft.add(feePaidByTakerRight);
const feeReceivedLeft = feePaidByLeftMaker.add(feePaidByTakerLeft);
const feeReceivedRight = feePaidByRightMaker.add(feePaidByTakerRight);