127 lines
3.7 KiB
JavaScript
127 lines
3.7 KiB
JavaScript
/* global artifacts, web3, contract */
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require('chai').use(require('bn-chai')(web3.utils.BN)).use(require('chai-as-promised')).should()
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const { toBN, fromWei } = require('web3-utils')
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const { takeSnapshot, revertSnapshot, increaseTime, mineBlock } = require('../scripts/ganacheHelper')
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const Torn = artifacts.require('TORNMock')
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const RewardSwap = artifacts.require('RewardSwapMock')
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const tornConfig = require('torn-token')
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const RLP = require('rlp')
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// Set time to beginning of a second
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async function timeReset() {
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const delay = 1000 - new Date().getMilliseconds()
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await new Promise((resolve) => setTimeout(resolve, delay))
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await mineBlock()
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}
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async function getNextAddr(sender, offset = 0) {
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const nonce = await web3.eth.getTransactionCount(sender)
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return (
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'0x' +
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web3.utils
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.sha3(RLP.encode([sender, Number(nonce) + Number(offset)]))
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.slice(12)
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.substring(14)
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)
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}
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// todo mock's fixed timestamp interferes with simulation
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contract.skip('RewardSwap simulation', (accounts) => {
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let torn
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let rewardSwap
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const sender = accounts[0]
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const recipient = accounts[1]
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const tornCap = toBN(tornConfig.torn.cap)
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const miningCap = toBN(tornConfig.torn.distribution.miningV2.amount)
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const initialTornBalance = toBN(tornConfig.miningV2.initialBalance)
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const poolWeight = 1e11
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let snapshotId
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async function increaseTimeDays(days, verbose = true) {
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if (verbose) {
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console.log(`Skipping ${days} days`)
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}
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const timestamp = await rewardSwap.getTimestamp()
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await rewardSwap.setTimestamp(Number(timestamp) + 60 * 60 * 24 * Number(days))
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}
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async function exchange(points, verbose = true) {
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const balanceBefore = await torn.balanceOf(recipient)
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await rewardSwap.swap(recipient, points, { from: sender })
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const balanceAfter = await torn.balanceOf(recipient)
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const poolSize = await rewardSwap.tornVirtualBalance()
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if (verbose) {
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console.log(
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`Exchanged ${points} points for ${fromWei(
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balanceAfter.sub(balanceBefore),
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)} TORN. Remaining in pool ${fromWei(poolSize)} TORN`,
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)
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}
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}
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before(async () => {
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const swapExpectedAddr = await getNextAddr(accounts[0], 1)
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torn = await Torn.new(sender, 0, [
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{ to: swapExpectedAddr, amount: miningCap.toString() },
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{ to: sender, amount: tornCap.sub(miningCap).toString() },
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])
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rewardSwap = await RewardSwap.new(
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torn.address,
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sender,
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miningCap.toString(),
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initialTornBalance.toString(),
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poolWeight,
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)
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snapshotId = await takeSnapshot()
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})
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beforeEach(async () => {
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await timeReset()
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})
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describe('Swap Simulations', () => {
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it('init', async () => {
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console.log('Cap', fromWei(miningCap))
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console.log('Virtual balance', fromWei(await rewardSwap.tornVirtualBalance()))
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})
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it('rates', async () => {
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let k = toBN(1)
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for (let i = 0; i < 18; i++) {
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console.log(
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`Expected return for 10^${i} points: ${fromWei(await rewardSwap.getExpectedReturn(k))} TORN`,
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)
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k = k.mul(toBN(10))
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}
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})
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it.skip('sim1', async () => {
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await exchange(1e8)
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await exchange(1e8)
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await increaseTimeDays(1)
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await exchange(1e8)
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})
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it('equilibrium sim', async () => {
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const amountPerDay = 7.2e9
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for (let i = 0; i <= 450; i++) {
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const verbose = i < 15 || i % 30 === 0 || (i > 360 && i < 370)
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if (verbose) {
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console.log(`Day ${i}`)
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}
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await exchange(amountPerDay, verbose)
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await increaseTimeDays(1, false)
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}
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})
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})
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afterEach(async () => {
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await revertSnapshot(snapshotId.result)
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// eslint-disable-next-line require-atomic-updates
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snapshotId = await takeSnapshot()
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})
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})
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