mirror of
https://github.com/0glabs/0g-chain.git
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464 lines
14 KiB
Go
464 lines
14 KiB
Go
package keeper_test
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import (
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"errors"
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"math/rand"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/suite"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/simulation"
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abci "github.com/tendermint/tendermint/abci/types"
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tmtime "github.com/tendermint/tendermint/types/time"
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"github.com/kava-labs/kava/app"
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"github.com/kava-labs/kava/x/auction"
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"github.com/kava-labs/kava/x/cdp/keeper"
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"github.com/kava-labs/kava/x/cdp/types"
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)
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type SeizeTestSuite struct {
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suite.Suite
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keeper keeper.Keeper
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addrs []sdk.AccAddress
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app app.TestApp
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cdps types.CDPs
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ctx sdk.Context
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liquidations liquidationTracker
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}
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type liquidationTracker struct {
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xrp []uint64
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btc []uint64
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debt int64
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}
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func (suite *SeizeTestSuite) SetupTest() {
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
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coins := []sdk.Coins{}
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tracker := liquidationTracker{}
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for j := 0; j < 100; j++ {
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coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000)))
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}
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_, addrs := app.GeneratePrivKeyAddressPairs(100)
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authGS := app.NewAuthGenState(
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addrs, coins)
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tApp.InitializeFromGenesisStates(
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authGS,
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NewPricefeedGenStateMulti(),
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NewCDPGenStateMulti(),
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)
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suite.ctx = ctx
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suite.app = tApp
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suite.keeper = tApp.GetCDPKeeper()
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suite.cdps = types.CDPs{}
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suite.addrs = addrs
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suite.liquidations = tracker
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}
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func (suite *SeizeTestSuite) createCdps() {
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
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cdps := make(types.CDPs, 100)
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_, addrs := app.GeneratePrivKeyAddressPairs(100)
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coins := []sdk.Coins{}
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tracker := liquidationTracker{}
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for j := 0; j < 100; j++ {
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coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000)))
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}
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authGS := app.NewAuthGenState(
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addrs, coins)
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tApp.InitializeFromGenesisStates(
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authGS,
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NewPricefeedGenStateMulti(),
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NewCDPGenStateMulti(),
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)
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suite.ctx = ctx
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suite.app = tApp
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suite.keeper = tApp.GetCDPKeeper()
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randSource := rand.New(rand.NewSource(int64(777)))
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for j := 0; j < 100; j++ {
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collateral := "xrp"
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amount := 10000000000
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debt := simulation.RandIntBetween(randSource, 750000000, 1249000000)
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if j%2 == 0 {
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collateral = "btc"
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amount = 100000000
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debt = simulation.RandIntBetween(randSource, 2700000000, 5332000000)
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if debt >= 4000000000 {
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tracker.btc = append(tracker.btc, uint64(j+1))
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tracker.debt += int64(debt)
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}
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} else {
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if debt >= 1000000000 {
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tracker.xrp = append(tracker.xrp, uint64(j+1))
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tracker.debt += int64(debt)
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}
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}
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err := suite.keeper.AddCdp(suite.ctx, addrs[j], c(collateral, int64(amount)), c("usdx", int64(debt)), collateral+"-a")
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suite.NoError(err)
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c, f := suite.keeper.GetCDP(suite.ctx, collateral+"-a", uint64(j+1))
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suite.True(f)
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cdps[j] = c
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}
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suite.cdps = cdps
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suite.addrs = addrs
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suite.liquidations = tracker
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}
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func (suite *SeizeTestSuite) setPrice(price sdk.Dec, market string) {
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pfKeeper := suite.app.GetPriceFeedKeeper()
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pfKeeper.SetPrice(suite.ctx, sdk.AccAddress{}, market, price, suite.ctx.BlockTime().Add(time.Hour*3))
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err := pfKeeper.SetCurrentPrices(suite.ctx, market)
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suite.NoError(err)
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pp, err := pfKeeper.GetCurrentPrice(suite.ctx, market)
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suite.NoError(err)
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suite.Equal(price, pp.Price)
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}
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func (suite *SeizeTestSuite) TestSeizeCollateral() {
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suite.createCdps()
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sk := suite.app.GetSupplyKeeper()
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cdp, found := suite.keeper.GetCDP(suite.ctx, "xrp-a", uint64(2))
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suite.True(found)
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p := cdp.Principal.Amount
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cl := cdp.Collateral.Amount
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tpb := suite.keeper.GetTotalPrincipal(suite.ctx, "xrp-a", "usdx")
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err := suite.keeper.SeizeCollateral(suite.ctx, cdp)
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suite.NoError(err)
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tpa := suite.keeper.GetTotalPrincipal(suite.ctx, "xrp-a", "usdx")
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suite.Equal(tpb.Sub(tpa), p)
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auctionKeeper := suite.app.GetAuctionKeeper()
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_, found = auctionKeeper.GetAuction(suite.ctx, auction.DefaultNextAuctionID)
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suite.True(found)
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auctionMacc := sk.GetModuleAccount(suite.ctx, auction.ModuleName)
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suite.Equal(cs(c("debt", p.Int64()), c("xrp", cl.Int64())), auctionMacc.GetCoins())
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ak := suite.app.GetAccountKeeper()
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acc := ak.GetAccount(suite.ctx, suite.addrs[1])
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suite.Equal(p.Int64(), acc.GetCoins().AmountOf("usdx").Int64())
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err = suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[1], suite.addrs[1], c("xrp", 10), "xrp-a")
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suite.Require().True(errors.Is(err, types.ErrCdpNotFound))
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}
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func (suite *SeizeTestSuite) TestSeizeCollateralMultiDeposit() {
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suite.createCdps()
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sk := suite.app.GetSupplyKeeper()
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cdp, found := suite.keeper.GetCDP(suite.ctx, "xrp-a", uint64(2))
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suite.True(found)
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err := suite.keeper.DepositCollateral(suite.ctx, suite.addrs[1], suite.addrs[0], c("xrp", 6999000000), "xrp-a")
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suite.NoError(err)
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cdp, found = suite.keeper.GetCDP(suite.ctx, "xrp-a", uint64(2))
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suite.True(found)
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deposits := suite.keeper.GetDeposits(suite.ctx, cdp.ID)
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suite.Equal(2, len(deposits))
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p := cdp.Principal.Amount
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cl := cdp.Collateral.Amount
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tpb := suite.keeper.GetTotalPrincipal(suite.ctx, "xrp-a", "usdx")
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err = suite.keeper.SeizeCollateral(suite.ctx, cdp)
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suite.NoError(err)
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tpa := suite.keeper.GetTotalPrincipal(suite.ctx, "xrp-a", "usdx")
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suite.Equal(tpb.Sub(tpa), p)
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auctionMacc := sk.GetModuleAccount(suite.ctx, auction.ModuleName)
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suite.Equal(cs(c("debt", p.Int64()), c("xrp", cl.Int64())), auctionMacc.GetCoins())
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ak := suite.app.GetAccountKeeper()
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acc := ak.GetAccount(suite.ctx, suite.addrs[1])
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suite.Equal(p.Int64(), acc.GetCoins().AmountOf("usdx").Int64())
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err = suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[1], suite.addrs[1], c("xrp", 10), "xrp-a")
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suite.Require().True(errors.Is(err, types.ErrCdpNotFound))
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}
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func (suite *SeizeTestSuite) TestLiquidateCdps() {
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suite.createCdps()
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sk := suite.app.GetSupplyKeeper()
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acc := sk.GetModuleAccount(suite.ctx, types.ModuleName)
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originalXrpCollateral := acc.GetCoins().AmountOf("xrp")
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suite.setPrice(d("0.2"), "xrp:usd")
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p, found := suite.keeper.GetCollateral(suite.ctx, "xrp-a")
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suite.True(found)
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suite.keeper.LiquidateCdps(suite.ctx, "xrp:usd", "xrp-a", p.LiquidationRatio, p.CheckCollateralizationIndexCount)
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acc = sk.GetModuleAccount(suite.ctx, types.ModuleName)
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finalXrpCollateral := acc.GetCoins().AmountOf("xrp")
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seizedXrpCollateral := originalXrpCollateral.Sub(finalXrpCollateral)
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xrpLiquidations := int(seizedXrpCollateral.Quo(i(10000000000)).Int64())
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suite.Equal(10, xrpLiquidations)
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}
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func (suite *SeizeTestSuite) TestApplyLiquidationPenalty() {
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penalty := suite.keeper.ApplyLiquidationPenalty(suite.ctx, "xrp-a", i(1000))
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suite.Equal(i(50), penalty)
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penalty = suite.keeper.ApplyLiquidationPenalty(suite.ctx, "btc-a", i(1000))
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suite.Equal(i(25), penalty)
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penalty = suite.keeper.ApplyLiquidationPenalty(suite.ctx, "xrp-a", i(675760172))
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suite.Equal(i(33788009), penalty)
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suite.Panics(func() { suite.keeper.ApplyLiquidationPenalty(suite.ctx, "lol-a", i(1000)) })
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}
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func (suite *SeizeTestSuite) TestKeeperLiquidation() {
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type args struct {
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ctype string
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blockTime time.Time
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initialPrice sdk.Dec
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finalPrice sdk.Dec
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collateral sdk.Coin
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principal sdk.Coin
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expectedKeeperCoins sdk.Coins // additional coins (if any) the borrower address should have after successfully liquidating position
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expectedAuctions auction.Auctions // the auctions we should expect to find have been started
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}
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type errArgs struct {
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expectLiquidate bool
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contains string
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}
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type test struct {
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name string
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args args
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errArgs errArgs
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}
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// Set up auction constants
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layout := "2006-01-02T15:04:05.000Z"
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endTimeStr := "9000-01-01T00:00:00.000Z"
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endTime, _ := time.Parse(layout, endTimeStr)
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addr, _ := sdk.AccAddressFromBech32("kava1ze7y9qwdddejmy7jlw4cymqqlt2wh05yhwmrv2")
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testCases := []test{
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{
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"valid liquidation",
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args{
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"btc-a",
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time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
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d("20000.00"),
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d("19000.0"),
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c("btc", 10000000),
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c("usdx", 1333330000),
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cs(c("btc", 100100000), c("xrp", 10000000000)),
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auction.Auctions{
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auction.CollateralAuction{
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BaseAuction: auction.BaseAuction{
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ID: 1,
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Initiator: "liquidator",
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Lot: c("btc", 9900000),
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Bidder: nil,
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Bid: c("usdx", 0),
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HasReceivedBids: false,
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EndTime: endTime,
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MaxEndTime: endTime,
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},
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CorrespondingDebt: c("debt", 1333330000),
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MaxBid: c("usdx", 1366663250),
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LotReturns: auction.WeightedAddresses{[]sdk.AccAddress{addr}, []sdk.Int{sdk.NewInt(9900000)}},
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},
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},
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},
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errArgs{
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true,
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"",
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},
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},
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{
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"invalid - not below collateralization ratio",
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args{
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"btc-a",
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time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
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d("20000.00"),
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d("21000.0"),
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c("btc", 10000000),
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c("usdx", 1333330000),
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cs(),
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auction.Auctions{},
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},
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errArgs{
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false,
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"collateral ratio not below liquidation ratio",
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},
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},
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}
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for _, tc := range testCases {
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suite.Run(tc.name, func() {
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suite.SetupTest()
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// setup pricefeed
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pk := suite.app.GetPriceFeedKeeper()
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_, err := pk.SetPrice(suite.ctx, sdk.AccAddress{}, "btc:usd", tc.args.initialPrice, suite.ctx.BlockTime().Add(time.Hour*24))
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suite.Require().NoError(err)
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err = pk.SetCurrentPrices(suite.ctx, "btc:usd")
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suite.Require().NoError(err)
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// setup cdp state
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suite.keeper.SetPreviousAccrualTime(suite.ctx, tc.args.ctype, suite.ctx.BlockTime())
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suite.keeper.SetInterestFactor(suite.ctx, tc.args.ctype, sdk.OneDec())
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err = suite.keeper.AddCdp(suite.ctx, suite.addrs[0], tc.args.collateral, tc.args.principal, tc.args.ctype)
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suite.Require().NoError(err)
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// update pricefeed
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_, err = pk.SetPrice(suite.ctx, sdk.AccAddress{}, "btc:usd", tc.args.finalPrice, suite.ctx.BlockTime().Add(time.Hour*24))
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suite.Require().NoError(err)
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err = pk.SetCurrentPrices(suite.ctx, "btc:usd")
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suite.Require().NoError(err)
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_, found := suite.keeper.GetCdpByOwnerAndCollateralType(suite.ctx, suite.addrs[0], tc.args.ctype)
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suite.Require().True(found)
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err = suite.keeper.AttemptKeeperLiquidation(suite.ctx, suite.addrs[1], suite.addrs[0], tc.args.ctype)
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if tc.errArgs.expectLiquidate {
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suite.Require().NoError(err)
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_, found = suite.keeper.GetCdpByOwnerAndCollateralType(suite.ctx, suite.addrs[0], tc.args.ctype)
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suite.Require().False(found)
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ak := suite.app.GetAuctionKeeper()
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auctions := ak.GetAllAuctions(suite.ctx)
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suite.Require().Equal(tc.args.expectedAuctions, auctions)
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ack := suite.app.GetAccountKeeper()
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keeper := ack.GetAccount(suite.ctx, suite.addrs[1])
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suite.Require().Equal(tc.args.expectedKeeperCoins, keeper.GetCoins())
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} else {
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suite.Require().Error(err)
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suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains))
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}
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})
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}
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}
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func (suite *SeizeTestSuite) TestBeginBlockerLiquidation() {
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type args struct {
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ctype string
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blockTime time.Time
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initialPrice sdk.Dec
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finalPrice sdk.Dec
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collaterals sdk.Coins
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principals sdk.Coins
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expectedAuctions auction.Auctions // the auctions we should expect to find have been started
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}
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type errArgs struct {
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expectLiquidate bool
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contains string
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}
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type test struct {
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name string
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args args
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errArgs errArgs
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}
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// Set up auction constants
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layout := "2006-01-02T15:04:05.000Z"
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endTimeStr := "9000-01-01T00:00:00.000Z"
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endTime, _ := time.Parse(layout, endTimeStr)
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addr, _ := sdk.AccAddressFromBech32("kava1ze7y9qwdddejmy7jlw4cymqqlt2wh05yhwmrv2")
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testCases := []test{
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{
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"1 liquidation",
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args{
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"btc-a",
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time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
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d("20000.00"),
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d("10000.00"),
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sdk.Coins{c("btc", 10000000), c("btc", 10000000)},
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sdk.Coins{c("usdx", 1000000000), c("usdx", 500000000)},
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auction.Auctions{
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auction.CollateralAuction{
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BaseAuction: auction.BaseAuction{
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ID: 1,
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Initiator: "liquidator",
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Lot: c("btc", 10000000),
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Bidder: nil,
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Bid: c("usdx", 0),
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HasReceivedBids: false,
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EndTime: endTime,
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MaxEndTime: endTime,
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},
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CorrespondingDebt: c("debt", 1000000000),
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MaxBid: c("usdx", 1025000000),
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LotReturns: auction.WeightedAddresses{[]sdk.AccAddress{addr}, []sdk.Int{sdk.NewInt(10000000)}},
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},
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},
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},
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errArgs{
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true,
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"",
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},
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},
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{
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"no liquidation",
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args{
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"btc-a",
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time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
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d("20000.00"),
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d("10000.00"),
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sdk.Coins{c("btc", 10000000), c("btc", 10000000)},
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sdk.Coins{c("usdx", 500000000), c("usdx", 500000000)},
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auction.Auctions{},
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},
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errArgs{
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false,
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"collateral ratio not below liquidation ratio",
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},
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},
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}
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for _, tc := range testCases {
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suite.Run(tc.name, func() {
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suite.SetupTest()
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// setup pricefeed
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pk := suite.app.GetPriceFeedKeeper()
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_, err := pk.SetPrice(suite.ctx, sdk.AccAddress{}, "btc:usd", tc.args.initialPrice, suite.ctx.BlockTime().Add(time.Hour*24))
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suite.Require().NoError(err)
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err = pk.SetCurrentPrices(suite.ctx, "btc:usd")
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suite.Require().NoError(err)
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// setup cdp state
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suite.keeper.SetPreviousAccrualTime(suite.ctx, tc.args.ctype, suite.ctx.BlockTime())
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suite.keeper.SetInterestFactor(suite.ctx, tc.args.ctype, sdk.OneDec())
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for idx, col := range tc.args.collaterals {
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err := suite.keeper.AddCdp(suite.ctx, suite.addrs[idx], col, tc.args.principals[idx], tc.args.ctype)
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suite.Require().NoError(err)
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}
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// update pricefeed
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_, err = pk.SetPrice(suite.ctx, sdk.AccAddress{}, "btc:usd", tc.args.finalPrice, suite.ctx.BlockTime().Add(time.Hour*24))
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suite.Require().NoError(err)
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err = pk.SetCurrentPrices(suite.ctx, "btc:usd")
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suite.Require().NoError(err)
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_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()})
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ak := suite.app.GetAuctionKeeper()
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auctions := ak.GetAllAuctions(suite.ctx)
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if tc.errArgs.expectLiquidate {
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suite.Require().Equal(tc.args.expectedAuctions, auctions)
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for _, a := range auctions {
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ca := a.(auction.CollateralAuction)
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_, found := suite.keeper.GetCdpByOwnerAndCollateralType(suite.ctx, ca.LotReturns.Addresses[0], tc.args.ctype)
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suite.Require().False(found)
|
|
}
|
|
} else {
|
|
suite.Require().Equal(0, len(auctions))
|
|
for idx, _ := range tc.args.collaterals {
|
|
_, found := suite.keeper.GetCdpByOwnerAndCollateralType(suite.ctx, suite.addrs[idx], tc.args.ctype)
|
|
suite.Require().True(found)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSeizeTestSuite(t *testing.T) {
|
|
suite.Run(t, new(SeizeTestSuite))
|
|
}
|