b742e92502
* alternative flash lending (renting) design
* add rent interface
* fix stack too deep error
rearrange order of k condition math
ignore erroneous out of gas errors in tests
* try removing rent in favor of monolithic swap
IUniswapV2Borrower -> IUniswapV2Callee
update tests
* fix implementation
* clean up math a bit
* amount{0,1}In -> amount{0,1}InNet
* charge on all inputs, not just net
* removed unnecessary safemath
* add to != token check
don't indent in scope
rename reserve{0,1}Next -> reserve{0,1}Adjusted
* > instead of >=
simplify algebra
reserve{0,1}Adjusted -> balance{0,1}Adjusted
add comments
* add some optimistic swap test cases
46 lines
1.6 KiB
TypeScript
46 lines
1.6 KiB
TypeScript
import { Contract, Wallet } from 'ethers'
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import { Web3Provider } from 'ethers/providers'
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import { deployContract } from 'ethereum-waffle'
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import { expandTo18Decimals } from './utilities'
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import ERC20 from '../../build/ERC20.json'
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import UniswapV2Factory from '../../build/UniswapV2Factory.json'
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import UniswapV2Exchange from '../../build/UniswapV2Exchange.json'
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interface FactoryFixture {
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factory: Contract
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}
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const overrides = {
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gasLimit: 9999999
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}
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export async function factoryFixture(_: Web3Provider, [wallet]: Wallet[]): Promise<FactoryFixture> {
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const factory = await deployContract(wallet, UniswapV2Factory, [wallet.address], overrides)
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return { factory }
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}
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interface ExchangeFixture extends FactoryFixture {
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token0: Contract
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token1: Contract
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exchange: Contract
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}
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export async function exchangeFixture(provider: Web3Provider, [wallet]: Wallet[]): Promise<ExchangeFixture> {
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const { factory } = await factoryFixture(provider, [wallet])
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const tokenA = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)], overrides)
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const tokenB = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)], overrides)
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await factory.createExchange(tokenA.address, tokenB.address, overrides)
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const exchangeAddress = await factory.getExchange(tokenA.address, tokenB.address)
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const exchange = new Contract(exchangeAddress, JSON.stringify(UniswapV2Exchange.abi), provider).connect(wallet)
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const token0Address = (await exchange.token0()).address
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const token0 = tokenA.address === token0Address ? tokenA : tokenB
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const token1 = tokenA.address === token0Address ? tokenB : tokenA
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return { factory, token0, token1, exchange }
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}
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