diff options
Diffstat (limited to 'packages/contract-wrappers/test/utils/dutch_auction_utils.ts')
-rw-r--r-- | packages/contract-wrappers/test/utils/dutch_auction_utils.ts | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/packages/contract-wrappers/test/utils/dutch_auction_utils.ts b/packages/contract-wrappers/test/utils/dutch_auction_utils.ts deleted file mode 100644 index 8e2aef217..000000000 --- a/packages/contract-wrappers/test/utils/dutch_auction_utils.ts +++ /dev/null @@ -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); - } -} |