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/types/simulation" abci "github.com/tendermint/tendermint/abci/types" tmproto "github.com/tendermint/tendermint/proto/tendermint/types" tmtime "github.com/tendermint/tendermint/types/time" "github.com/kava-labs/kava/app" auctiontypes "github.com/kava-labs/kava/x/auction/types" "github.com/kava-labs/kava/x/cdp" "github.com/kava-labs/kava/x/cdp/keeper" "github.com/kava-labs/kava/x/cdp/types" ) type ModuleTestSuite struct { suite.Suite keeper keeper.Keeper addrs []sdk.AccAddress app app.TestApp cdps types.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, tmproto.Header{Height: 1, Time: tmtime.Now()}) tracker := liquidationTracker{} coins := cs(c("btc", 100000000), c("xrp", 10000000000)) _, addrs := app.GeneratePrivKeyAddressPairs(100) authGS := app.NewFundedGenStateWithSameCoins(tApp.AppCodec(), coins, addrs) tApp.InitializeFromGenesisStates( authGS, NewPricefeedGenStateMulti(tApp.AppCodec()), NewCDPGenStateMulti(tApp.AppCodec()), ) suite.ctx = ctx suite.app = tApp suite.keeper = tApp.GetCDPKeeper() suite.cdps = types.CDPs{} suite.addrs = addrs suite.liquidations = tracker } func (suite *ModuleTestSuite) createCdps() { tApp := app.NewTestApp() ctx := tApp.NewContext(true, tmproto.Header{Height: 1, Time: tmtime.Now()}) cdps := make(types.CDPs, 100) tracker := liquidationTracker{} coins := cs(c("btc", 100000000), c("xrp", 10000000000)) _, addrs := app.GeneratePrivKeyAddressPairs(100) authGS := app.NewFundedGenStateWithSameCoins(tApp.AppCodec(), coins, addrs) tApp.InitializeFromGenesisStates( authGS, NewPricefeedGenStateMulti(tApp.AppCodec()), NewCDPGenStateMulti(tApp.AppCodec()), ) 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)), collateral+"-a")) c, f := suite.keeper.GetCDP(suite.ctx, collateral+"-a", 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() _, err := pfKeeper.SetPrice(suite.ctx, sdk.AccAddress{}, market, price, suite.ctx.BlockTime().Add(time.Hour*3)) suite.NoError(err) 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() ak := suite.app.GetAccountKeeper() bk := suite.app.GetBankKeeper() acc := ak.GetModuleAccount(suite.ctx, types.ModuleName) originalXrpCollateral := bk.GetBalance(suite.ctx, acc.GetAddress(), "xrp").Amount suite.setPrice(d("0.2"), "xrp:usd") cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper) acc = ak.GetModuleAccount(suite.ctx, types.ModuleName) finalXrpCollateral := bk.GetBalance(suite.ctx, acc.GetAddress(), "xrp").Amount seizedXrpCollateral := originalXrpCollateral.Sub(finalXrpCollateral) xrpLiquidations := int(seizedXrpCollateral.Quo(i(10000000000)).Int64()) suite.Equal(10, xrpLiquidations) acc = ak.GetModuleAccount(suite.ctx, types.ModuleName) originalBtcCollateral := bk.GetBalance(suite.ctx, acc.GetAddress(), "btc").Amount suite.setPrice(d("6000"), "btc:usd") cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper) acc = ak.GetModuleAccount(suite.ctx, types.ModuleName) finalBtcCollateral := bk.GetBalance(suite.ctx, acc.GetAddress(), "btc").Amount seizedBtcCollateral := originalBtcCollateral.Sub(finalBtcCollateral) btcLiquidations := int(seizedBtcCollateral.Quo(i(100000000)).Int64()) suite.Equal(10, btcLiquidations) acc = ak.GetModuleAccount(suite.ctx, auctiontypes.ModuleName) suite.Equal(int64(71955653865), bk.GetBalance(suite.ctx, acc.GetAddress(), "debt").Amount.Int64()) } func (suite *ModuleTestSuite) TestSeizeSingleCdpWithFees() { err := suite.keeper.AddCdp(suite.ctx, suite.addrs[0], c("xrp", 10000000000), c("usdx", 1000000000), "xrp-a") suite.NoError(err) suite.Equal(i(1000000000), suite.keeper.GetTotalPrincipal(suite.ctx, "xrp-a", "usdx")) ak := suite.app.GetAccountKeeper() bk := suite.app.GetBankKeeper() cdpMacc := ak.GetModuleAccount(suite.ctx, types.ModuleName) suite.Equal(i(1000000000), bk.GetBalance(suite.ctx, cdpMacc.GetAddress(), "debt").Amount) 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 = ak.GetModuleAccount(suite.ctx, types.ModuleName) suite.Equal(i(1000000891), (bk.GetBalance(suite.ctx, cdpMacc.GetAddress(), "debt").Amount)) cdp, _ := suite.keeper.GetCDP(suite.ctx, "xrp-a", 1) err = suite.keeper.SeizeCollateral(suite.ctx, cdp) suite.NoError(err) _, found := suite.keeper.GetCDP(suite.ctx, "xrp-a", 1) suite.False(found) } func TestModuleTestSuite(t *testing.T) { suite.Run(t, new(ModuleTestSuite)) }