d-bis/dodo-contractV2
4
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
c72bcae8e95452d8a2706b849c20222d7b52ea89
dodo-contractV2/test/Trader.test.ts
mingda c72bcae8e9 first commit
2020-06-26 00:31:25 +08:00

281 lines
15 KiB
TypeScript
Raw Blame History

/*
Copyright 2020 DODO ZOO.
SPDX-License-Identifier: Apache-2.0
*/
import { DODOContext, getDODOContext } from './utils/Context';
import { decimalStr } from './utils/Converter';
import { logGas } from './utils/Log';
import * as assert from "assert"
let lp: string
let trader: string
async function init(ctx: DODOContext): Promise<void> {
await ctx.setOraclePrice(decimalStr("100"))
lp = ctx.spareAccounts[0]
trader = ctx.spareAccounts[1]
await ctx.approveDODO(lp)
await ctx.approveDODO(trader)
await ctx.mintTestToken(lp, decimalStr("10"), decimalStr("1000"))
await ctx.mintTestToken(trader, decimalStr("10"), decimalStr("1000"))
await ctx.DODO.methods.depositBase(decimalStr("10")).send(ctx.sendParam(lp))
await ctx.DODO.methods.depositQuote(decimalStr("1000")).send(ctx.sendParam(lp))
}
describe("Trader", () => {
let snapshotId: string
let ctx: DODOContext
before(async () => {
ctx = await getDODOContext()
await init(ctx);
})
beforeEach(async () => {
snapshotId = await ctx.EVM.snapshot();
});
afterEach(async () => {
await ctx.EVM.reset(snapshotId)
});
describe("R goes above ONE", () => {
it("buy when R equals ONE", async () => {
logGas(await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("110")).send(ctx.sendParam(trader)), "buy base token")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("11"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "898581839502056240973")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.001"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0"))
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("8.999"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1101418160497943759027")
})
it("buy when R is ABOVE ONE", async () => {
await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("110")).send(ctx.sendParam(trader))
await ctx.DODO.methods.buyBaseToken(decimalStr("4"), decimalStr("500")).send(ctx.sendParam(trader))
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("15"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "448068135932873382076")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.005"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0"))
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("4.995"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1551931864067126617924")
})
it("sell when R is ABOVE ONE", async () => {
await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("110")).send(ctx.sendParam(trader))
await ctx.DODO.methods.sellBaseToken(decimalStr("0.5"), decimalStr("40")).send(ctx.sendParam(trader))
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("10.5"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "949280846351657143136")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.001"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "50851561534203512")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("9.499"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1050668302086808653352")
})
it("sell when R is ABOVE ONE and RStatus back to ONE", async () => {
await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("110")).send(ctx.sendParam(trader))
await ctx.DODO.methods.sellBaseToken("1003002430889317763", decimalStr("90")).send(ctx.sendParam(trader))
// R status
assert.equal(await ctx.DODO.methods._R_STATUS_().call(), "0")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), "9996997569110682237")
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "999695745518506168723")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.001"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "101418160497943759")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), "10002002430889317763")
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1000202836320995887518")
// target status
assert.equal(await ctx.DODO.methods._TARGET_BASE_TOKEN_AMOUNT_().call(), "10002002430889317763")
assert.equal(await ctx.DODO.methods._TARGET_QUOTE_TOKEN_AMOUNT_().call(), "1000202836320995887518")
})
it("sell when R is ABOVE ONE and RStatus becomes BELOW ONE", async () => {
await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("110")).send(ctx.sendParam(trader))
logGas(await ctx.DODO.methods.sellBaseToken(decimalStr("2"), decimalStr("90")).send(ctx.sendParam(trader)), "sell base token gas cost worst case")
// R status
assert.equal(await ctx.DODO.methods._R_STATUS_().call(), "2")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("9"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1098020621600061709145")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.001"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "200038898794388634")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("10.999"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "901779339501143902221")
// target status
assert.equal(await ctx.DODO.methods._TARGET_BASE_TOKEN_AMOUNT_().call(), "10002002430889317763")
assert.equal(await ctx.DODO.methods._TARGET_QUOTE_TOKEN_AMOUNT_().call(), "1000400077797588777268")
})
})
describe("R goes below ONE", () => {
it("sell when R equals ONE", async () => {
logGas(await ctx.DODO.methods.sellBaseToken(decimalStr("1"), decimalStr("90")).send(ctx.sendParam(trader)), "sell base token")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("9"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1098617454226610630664")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), "0")
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "98914196817061816")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("11"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "901283631576572307520")
})
it.only("sell when R is BELOW ONE", async () => {
await ctx.DODO.methods.sellBaseToken(decimalStr("3"), decimalStr("90")).send(ctx.sendParam(trader))
console.log(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("8"))
console.log(await ctx.QUOTE.methods.balanceOf(trader).call(), "1197235140964438116338")
console.log(await ctx.DODO.methods._QUOTE_BALANCE_().call())
await ctx.DODO.methods.sellBaseToken(decimalStr("3"), decimalStr("90")).send(ctx.sendParam(trader))
// trader balances
console.log(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("8"))
console.log(await ctx.QUOTE.methods.balanceOf(trader).call(), "1197235140964438116338")
// maintainer balances
console.log(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), "0")
console.log(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "197828626844973035")
// dodo balances
console.log(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("12"))
console.log(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "802567030408716910627")
})
it("buy when R is BELOW ONE", async () => {
await ctx.DODO.methods.sellBaseToken(decimalStr("1"), decimalStr("90")).send(ctx.sendParam(trader))
await ctx.DODO.methods.buyBaseToken(decimalStr("0.5"), decimalStr("60")).send(ctx.sendParam(trader))
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("9.5"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1049294316148665165351")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.0005"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "98914196817061816")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("10.4995"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "950606769654517772833")
})
it("buy when R is BELOW ONE and RStatus back to ONE", async () => {
await ctx.DODO.methods.sellBaseToken(decimalStr("1"), decimalStr("90")).send(ctx.sendParam(trader))
await ctx.DODO.methods.buyBaseToken("997008973080757728", decimalStr("110")).send(ctx.sendParam(trader))
// R status
assert.equal(await ctx.DODO.methods._R_STATUS_().call(), "0")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), "9997008973080757728")
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "999703024198699420514")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), "997008973080757")
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "98914196817061816")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), "10001994017946161515")
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1000198061604483517670")
// target status
assert.equal(await ctx.DODO.methods._TARGET_BASE_TOKEN_AMOUNT_().call(), "10001994017946161515")
assert.equal(await ctx.DODO.methods._TARGET_QUOTE_TOKEN_AMOUNT_().call(), "1000198061604483517670")
})
it("buy when R is BELOW ONE and RStatus becomes ABOVE ONE", async () => {
await ctx.DODO.methods.sellBaseToken(decimalStr("1"), decimalStr("90")).send(ctx.sendParam(trader))
logGas(await ctx.DODO.methods.buyBaseToken(decimalStr("2"), decimalStr("220")).send(ctx.sendParam(trader)), "buy base token gas cost worst case")
// R status
assert.equal(await ctx.DODO.methods._R_STATUS_().call(), "1")
// trader balances
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("11"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "897977789597854412810")
// maintainer balances
assert.equal(await ctx.BASE.methods.balanceOf(ctx.Maintainer).call(), decimalStr("0.002"))
assert.equal(await ctx.QUOTE.methods.balanceOf(ctx.Maintainer).call(), "98914196817061816")
// dodo balances
assert.equal(await ctx.DODO.methods._BASE_BALANCE_().call(), decimalStr("8.998"))
assert.equal(await ctx.DODO.methods._QUOTE_BALANCE_().call(), "1101923296205328525374")
// target status
assert.equal(await ctx.DODO.methods._TARGET_BASE_TOKEN_AMOUNT_().call(), "10004000000000000000")
assert.equal(await ctx.DODO.methods._TARGET_QUOTE_TOKEN_AMOUNT_().call(), "1000198061604483517670")
})
})
describe("Corner cases", () => {
it("buy or sell 0", async () => {
await ctx.DODO.methods.sellBaseToken(decimalStr("0"), decimalStr("0")).send(ctx.sendParam(trader))
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("10"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), decimalStr("1000"))
await ctx.DODO.methods.buyBaseToken(decimalStr("0"), decimalStr("0")).send(ctx.sendParam(trader))
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), decimalStr("10"))
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), decimalStr("1000"))
})
it("buy or sell a tiny amount", async () => {
// no precision problem
await ctx.DODO.methods.sellBaseToken("1", decimalStr("0")).send(ctx.sendParam(trader))
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), "9999999999999999999")
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1000000000000000000100")
// have precision problem, charge 0
await ctx.DODO.methods.buyBaseToken("1", decimalStr("1")).send(ctx.sendParam(trader))
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), "10000000000000000000")
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1000000000000000000100")
assert.equal(await ctx.DODO.methods._R_STATUS_().call(), "0")
// no precision problem if trading amount is extremely small
await ctx.DODO.methods.buyBaseToken("10", decimalStr("1")).send(ctx.sendParam(trader))
assert.equal(await ctx.BASE.methods.balanceOf(trader).call(), "10000000000000000010")
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "999999999999999999100")
})
it("sell a huge amount of base token", async () => {
await ctx.mintTestToken(trader, decimalStr("10000"), "0")
await ctx.DODO.methods.sellBaseToken(decimalStr("10000"), "0").send(ctx.sendParam(trader))
// nearly drain out quote pool
// because the fee donated is greater than remaining quote pool
// quote lp earn a considerable profit
assert.equal(await ctx.QUOTE.methods.balanceOf(trader).call(), "1996900220185135480814")
assert.equal(await ctx.DODO.methods.getLpQuoteBalance(lp).call(), "4574057156329524018663")
})
})
describe("Revert cases", () => {
it("price limit", async () => {
await assert.rejects(
ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("100")).send(ctx.sendParam(trader)),
/BUY_BASE_COST_TOO_MUCH/
)
await assert.rejects(
ctx.DODO.methods.sellBaseToken(decimalStr("1"), decimalStr("100")).send(ctx.sendParam(trader)),
/SELL_BASE_RECEIVE_NOT_ENOUGH/
)
})
it("base balance limit", async () => {
await assert.rejects(
ctx.DODO.methods.buyBaseToken(decimalStr("11"), decimalStr("10000")).send(ctx.sendParam(trader)),
/DODO_BASE_TOKEN_BALANCE_NOT_ENOUGH/
)
await ctx.DODO.methods.buyBaseToken(decimalStr("1"), decimalStr("200")).send(ctx.sendParam(trader))
await assert.rejects(
ctx.DODO.methods.buyBaseToken(decimalStr("11"), decimalStr("10000")).send(ctx.sendParam(trader)),
/DODO_BASE_TOKEN_BALANCE_NOT_ENOUGH/
)
})
})
})
Reference in New Issue View Git Blame Copy Permalink