package cdp_test import ( "math/rand" "testing" "time" "github.com/stretchr/testify/suite" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/x/simulation" abci "github.com/tendermint/tendermint/abci/types" tmtime "github.com/tendermint/tendermint/types/time" "github.com/kava-labs/kava/app" "github.com/kava-labs/kava/x/auction" "github.com/kava-labs/kava/x/cdp" ) type ModuleTestSuite struct { suite.Suite keeper cdp.Keeper addrs []sdk.AccAddress app app.TestApp cdps cdp.CDPs ctx sdk.Context liquidations liquidationTracker } type liquidationTracker struct { xrp []uint64 btc []uint64 debt int64 } func (suite *ModuleTestSuite) SetupTest() { tApp := app.NewTestApp() ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()}) coins := []sdk.Coins{} tracker := liquidationTracker{} for j := 0; j < 100; j++ { coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000))) } _, addrs := app.GeneratePrivKeyAddressPairs(100) authGS := app.NewAuthGenState( addrs, coins) tApp.InitializeFromGenesisStates( authGS, NewPricefeedGenStateMulti(), NewCDPGenStateMulti(), ) suite.ctx = ctx suite.app = tApp suite.keeper = tApp.GetCDPKeeper() suite.cdps = cdp.CDPs{} suite.addrs = addrs suite.liquidations = tracker } func (suite *ModuleTestSuite) createCdps() { tApp := app.NewTestApp() ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()}) cdps := make(cdp.CDPs, 100) _, addrs := app.GeneratePrivKeyAddressPairs(100) coins := []sdk.Coins{} tracker := liquidationTracker{} for j := 0; j < 100; j++ { coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000))) } authGS := app.NewAuthGenState( addrs, coins) tApp.InitializeFromGenesisStates( authGS, NewPricefeedGenStateMulti(), NewCDPGenStateMulti(), ) suite.ctx = ctx suite.app = tApp suite.keeper = tApp.GetCDPKeeper() for j := 0; j < 100; j++ { collateral := "xrp" amount := 10000000000 debt := simulation.RandIntBetween(rand.New(rand.NewSource(int64(j))), 750000000, 1249000000) if j%2 == 0 { collateral = "btc" amount = 100000000 debt = simulation.RandIntBetween(rand.New(rand.NewSource(int64(j))), 2700000000, 5332000000) if debt >= 4000000000 { tracker.btc = append(tracker.btc, uint64(j+1)) tracker.debt += int64(debt) } } else { if debt >= 1000000000 { tracker.xrp = append(tracker.xrp, uint64(j+1)) tracker.debt += int64(debt) } } suite.Nil(suite.keeper.AddCdp(suite.ctx, addrs[j], c(collateral, int64(amount)), c("usdx", int64(debt)))) c, f := suite.keeper.GetCDP(suite.ctx, collateral, uint64(j+1)) suite.True(f) cdps[j] = c } suite.cdps = cdps suite.addrs = addrs suite.liquidations = tracker } func (suite *ModuleTestSuite) setPrice(price sdk.Dec, market string) { pfKeeper := suite.app.GetPriceFeedKeeper() pfKeeper.SetPrice(suite.ctx, sdk.AccAddress{}, market, price, suite.ctx.BlockTime().Add(time.Hour*3)) err := pfKeeper.SetCurrentPrices(suite.ctx, market) suite.NoError(err) pp, err := pfKeeper.GetCurrentPrice(suite.ctx, market) suite.NoError(err) suite.Equal(price, pp.Price) } func (suite *ModuleTestSuite) TestBeginBlock() { suite.createCdps() sk := suite.app.GetSupplyKeeper() acc := sk.GetModuleAccount(suite.ctx, cdp.ModuleName) originalXrpCollateral := acc.GetCoins().AmountOf("xrp") suite.setPrice(d("0.2"), "xrp:usd") cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper) acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName) finalXrpCollateral := acc.GetCoins().AmountOf("xrp") seizedXrpCollateral := originalXrpCollateral.Sub(finalXrpCollateral) xrpLiquidations := int(seizedXrpCollateral.Quo(i(10000000000)).Int64()) suite.Equal(len(suite.liquidations.xrp), xrpLiquidations) acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName) originalBtcCollateral := acc.GetCoins().AmountOf("btc") suite.setPrice(d("6000"), "btc:usd") cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper) acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName) finalBtcCollateral := acc.GetCoins().AmountOf("btc") seizedBtcCollateral := originalBtcCollateral.Sub(finalBtcCollateral) btcLiquidations := int(seizedBtcCollateral.Quo(i(100000000)).Int64()) suite.Equal(len(suite.liquidations.btc), btcLiquidations) acc = sk.GetModuleAccount(suite.ctx, auction.ModuleName) suite.Equal(suite.liquidations.debt, acc.GetCoins().AmountOf("debt").Int64()) } func (suite *ModuleTestSuite) TestSeizeSingleCdpWithFees() { err := suite.keeper.AddCdp(suite.ctx, suite.addrs[0], c("xrp", 10000000000), c("usdx", 1000000000)) suite.NoError(err) suite.Equal(i(1000000000), suite.keeper.GetTotalPrincipal(suite.ctx, "xrp", "usdx")) sk := suite.app.GetSupplyKeeper() cdpMacc := sk.GetModuleAccount(suite.ctx, cdp.ModuleName) suite.Equal(i(1000000000), cdpMacc.GetCoins().AmountOf("debt")) for i := 0; i < 100; i++ { suite.ctx = suite.ctx.WithBlockTime(suite.ctx.BlockTime().Add(time.Second * 6)) cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper) } cdpMacc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName) suite.Equal(i(1000000900), (cdpMacc.GetCoins().AmountOf("debt"))) cdp, _ := suite.keeper.GetCDP(suite.ctx, "xrp", 1) err = suite.keeper.SeizeCollateral(suite.ctx, cdp) suite.NoError(err) _, found := suite.keeper.GetCDP(suite.ctx, "xrp", 1) suite.False(found) } func TestModuleTestSuite(t *testing.T) { suite.Run(t, new(ModuleTestSuite)) }