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-rw-r--r--packages/contract-wrappers/test/utils/dutch_auction_utils.ts153
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diff --git a/packages/contract-wrappers/test/utils/dutch_auction_utils.ts b/packages/contract-wrappers/test/utils/dutch_auction_utils.ts
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index 8e2aef217..000000000
--- a/packages/contract-wrappers/test/utils/dutch_auction_utils.ts
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@@ -1,153 +0,0 @@
-import { DummyERC20TokenContract } from '@0x/abi-gen-wrappers';
-import * as artifacts from '@0x/contract-artifacts';
-import { assetDataUtils } from '@0x/order-utils';
-import { orderFactory } from '@0x/order-utils/lib/src/order_factory';
-import { SignedOrder } from '@0x/types';
-import { BigNumber } from '@0x/utils';
-import { Web3Wrapper } from '@0x/web3-wrapper';
-
-import { DutchAuctionWrapper } from '../../src/contract_wrappers/dutch_auction_wrapper';
-
-import { constants } from './constants';
-
-export class DutchAuctionUtils {
- private readonly _web3Wrapper: Web3Wrapper;
- private readonly _coinbase: string;
- private readonly _exchangeAddress: string;
- private readonly _erc20ProxyAddress: string;
-
- constructor(web3Wrapper: Web3Wrapper, coinbase: string, exchangeAddress: string, erc20ProxyAddress: string) {
- this._web3Wrapper = web3Wrapper;
- this._coinbase = coinbase;
- this._exchangeAddress = exchangeAddress;
- this._erc20ProxyAddress = erc20ProxyAddress;
- }
- public async createSignedSellOrderAsync(
- auctionBeginTimeSections: BigNumber,
- acutionEndTimeSeconds: BigNumber,
- auctionBeginTakerAssetAmount: BigNumber,
- auctionEndTakerAssetAmount: BigNumber,
- makerAssetAmount: BigNumber,
- makerAssetData: string,
- takerAssetData: string,
- makerAddress: string,
- takerAddress: string,
- senderAddress?: string,
- makerFee?: BigNumber,
- takerFee?: BigNumber,
- feeRecipientAddress?: string,
- ): Promise<SignedOrder> {
- // Notes on sell order:
- // - The `takerAssetAmount` is set to the `auctionEndTakerAssetAmount`, which is the lowest amount the
- // the seller can expect to receive
- // - The `makerAssetData` is overloaded to include the auction begin time and begin taker asset amount
- const makerAssetDataWithAuctionDetails = DutchAuctionWrapper.encodeDutchAuctionAssetData(
- makerAssetData,
- auctionBeginTimeSections,
- auctionBeginTakerAssetAmount,
- );
- const signedOrder = await orderFactory.createSignedOrderAsync(
- this._web3Wrapper.getProvider(),
- makerAddress,
- makerAssetAmount,
- makerAssetDataWithAuctionDetails,
- auctionEndTakerAssetAmount,
- takerAssetData,
- this._exchangeAddress,
- {
- takerAddress,
- senderAddress,
- makerFee,
- takerFee,
- feeRecipientAddress,
- expirationTimeSeconds: acutionEndTimeSeconds,
- },
- );
- const erc20AssetData = assetDataUtils.decodeERC20AssetData(makerAssetData);
- await this._increaseERC20BalanceAndAllowanceAsync(erc20AssetData.tokenAddress, makerAddress, makerAssetAmount);
- return signedOrder;
- }
- public async createSignedBuyOrderAsync(
- sellOrder: SignedOrder,
- buyerAddress: string,
- senderAddress?: string,
- makerFee?: BigNumber,
- takerFee?: BigNumber,
- feeRecipientAddress?: string,
- expirationTimeSeconds?: BigNumber,
- ): Promise<SignedOrder> {
- const dutchAuctionData = DutchAuctionWrapper.decodeDutchAuctionData(sellOrder.makerAssetData);
- // Notes on buy order:
- // - The `makerAssetAmount` is set to `dutchAuctionData.beginAmount`, which is
- // the highest amount the buyer would have to pay out at any point during the auction.
- // - The `takerAssetAmount` is set to the seller's `makerAssetAmount`, as the buyer
- // receives the entire amount being sold by the seller.
- // - The `makerAssetData`/`takerAssetData` are reversed from the sell order
- const signedOrder = await orderFactory.createSignedOrderAsync(
- this._web3Wrapper.getProvider(),
- buyerAddress,
- dutchAuctionData.beginAmount,
- sellOrder.takerAssetData,
- sellOrder.makerAssetAmount,
- sellOrder.makerAssetData,
- sellOrder.exchangeAddress,
- {
- senderAddress,
- makerFee,
- takerFee,
- feeRecipientAddress,
- expirationTimeSeconds,
- },
- );
- const buyerERC20AssetData = assetDataUtils.decodeERC20AssetData(sellOrder.takerAssetData);
- await this._increaseERC20BalanceAndAllowanceAsync(
- buyerERC20AssetData.tokenAddress,
- buyerAddress,
- dutchAuctionData.beginAmount,
- );
- return signedOrder;
- }
- private async _increaseERC20BalanceAndAllowanceAsync(
- tokenAddress: string,
- address: string,
- amount: BigNumber,
- ): Promise<void> {
- if (amount.isZero() || address === constants.NULL_ADDRESS) {
- return; // noop
- }
- await Promise.all([
- this._increaseERC20BalanceAsync(tokenAddress, address, amount),
- this._increaseERC20AllowanceAsync(tokenAddress, address, amount),
- ]);
- }
- private async _increaseERC20BalanceAsync(tokenAddress: string, address: string, amount: BigNumber): Promise<void> {
- const erc20Token = new DummyERC20TokenContract(
- artifacts.DummyERC20Token.compilerOutput.abi,
- tokenAddress,
- this._web3Wrapper.getProvider(),
- this._web3Wrapper.getContractDefaults(),
- );
- const txHash = await erc20Token.transfer.sendTransactionAsync(address, amount, {
- from: this._coinbase,
- });
- await this._web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
- }
- private async _increaseERC20AllowanceAsync(
- tokenAddress: string,
- address: string,
- amount: BigNumber,
- ): Promise<void> {
- const erc20Token = new DummyERC20TokenContract(
- artifacts.DummyERC20Token.compilerOutput.abi,
- tokenAddress,
- this._web3Wrapper.getProvider(),
- this._web3Wrapper.getContractDefaults(),
- );
- const oldMakerAllowance = await erc20Token.allowance.callAsync(address, this._erc20ProxyAddress);
- const newMakerAllowance = oldMakerAllowance.plus(amount);
- const txHash = await erc20Token.approve.sendTransactionAsync(this._erc20ProxyAddress, newMakerAllowance, {
- from: address,
- });
- await this._web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
- }
-}