cbe801b54f
make name + symbol + decimals constant add GenericERC20 rename some contracts update tests to reflect all of this
41 lines
1.6 KiB
TypeScript
41 lines
1.6 KiB
TypeScript
import { providers, Wallet, Contract } from 'ethers'
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import { deployContract } from 'ethereum-waffle'
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import { expandTo18Decimals } from './utilities'
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import GenericERC20 from '../../build/GenericERC20.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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export interface FactoryFixture {
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factory: Contract
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}
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export async function factoryFixture(_: providers.Web3Provider, [wallet]: Wallet[]): Promise<FactoryFixture> {
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const factory = await deployContract(wallet, UniswapV2Factory, [wallet.address])
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return { factory }
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}
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export 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: providers.Web3Provider, [wallet]: Wallet[]): Promise<ExchangeFixture> {
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const { factory } = await factoryFixture(provider, [wallet])
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const tokenA = await deployContract(wallet, GenericERC20, [expandTo18Decimals(10000)])
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const tokenB = await deployContract(wallet, GenericERC20, [expandTo18Decimals(10000)])
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await factory.createExchange(tokenA.address, tokenB.address)
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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)
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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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