package keeper_test import ( "strings" "time" sdk "github.com/cosmos/cosmos-sdk/types" abci "github.com/tendermint/tendermint/abci/types" "github.com/tendermint/tendermint/crypto" tmtime "github.com/tendermint/tendermint/types/time" "github.com/kava-labs/kava/app" "github.com/kava-labs/kava/x/hard" "github.com/kava-labs/kava/x/hard/types" "github.com/kava-labs/kava/x/pricefeed" ) func (suite *KeeperTestSuite) TestWithdraw() { type args struct { depositor sdk.AccAddress initialModAccountBalance sdk.Coins depositAmount sdk.Coins withdrawAmount sdk.Coins createDeposit bool expectedAccountBalance sdk.Coins expectedModAccountBalance sdk.Coins finalDepositAmount sdk.Coins } type errArgs struct { expectPass bool expectDelete bool contains string } type withdrawTest struct { name string args args errArgs errArgs } testCases := []withdrawTest{ { "valid: partial withdraw", args{ depositor: sdk.AccAddress(crypto.AddressHash([]byte("test"))), initialModAccountBalance: sdk.Coins(nil), depositAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(200))), withdrawAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(100))), createDeposit: true, expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(900)), sdk.NewCoin("btcb", sdk.NewInt(1000))), expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(100))), finalDepositAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(100))), }, errArgs{ expectPass: true, expectDelete: false, contains: "", }, }, { "valid: full withdraw", args{ depositor: sdk.AccAddress(crypto.AddressHash([]byte("test"))), initialModAccountBalance: sdk.Coins(nil), depositAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(200))), withdrawAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(200))), createDeposit: true, expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(1000)), sdk.NewCoin("btcb", sdk.NewInt(1000))), expectedModAccountBalance: sdk.Coins(nil), finalDepositAmount: sdk.Coins{}, }, errArgs{ expectPass: true, expectDelete: true, contains: "", }, }, { "valid: withdraw exceeds deposit but is adjusted to match max deposit", args{ depositor: sdk.AccAddress(crypto.AddressHash([]byte("test"))), initialModAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(1000))), depositAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(200))), withdrawAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(300))), createDeposit: true, expectedAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(1000)), sdk.NewCoin("btcb", sdk.NewInt(1000))), expectedModAccountBalance: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(1000))), finalDepositAmount: sdk.Coins{}, }, errArgs{ expectPass: true, expectDelete: true, contains: "", }, }, { "invalid: withdraw non-supplied coin type", args{ depositor: sdk.AccAddress(crypto.AddressHash([]byte("test"))), initialModAccountBalance: sdk.Coins(nil), depositAmount: sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(200))), withdrawAmount: sdk.NewCoins(sdk.NewCoin("btcb", sdk.NewInt(200))), createDeposit: true, expectedAccountBalance: sdk.Coins{}, expectedModAccountBalance: sdk.Coins{}, finalDepositAmount: sdk.Coins{}, }, errArgs{ expectPass: false, expectDelete: false, contains: "no coins of this type deposited", }, }, } for _, tc := range testCases { suite.Run(tc.name, func() { // create new app with one funded account // Initialize test app and set context tApp := app.NewTestApp() ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()}) authGS := app.NewAuthGenState( []sdk.AccAddress{tc.args.depositor}, []sdk.Coins{sdk.NewCoins(sdk.NewCoin("bnb", sdk.NewInt(1000)), sdk.NewCoin("btcb", sdk.NewInt(1000)))}, ) loanToValue := sdk.MustNewDecFromStr("0.6") hardGS := types.NewGenesisState(types.NewParams( types.MoneyMarkets{ types.NewMoneyMarket("usdx", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "usdx:usd", sdk.NewInt(1000000), sdk.NewInt(USDX_CF*1000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec()), types.NewMoneyMarket("ukava", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "kava:usd", sdk.NewInt(1000000), sdk.NewInt(KAVA_CF*1000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec()), types.NewMoneyMarket("bnb", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "bnb:usd", sdk.NewInt(100000000), sdk.NewInt(BNB_CF*1000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec()), }, 0, // LTV counter ), types.DefaultAccumulationTimes, types.DefaultDeposits, types.DefaultBorrows, types.DefaultTotalSupplied, types.DefaultTotalBorrowed, types.DefaultTotalReserves, ) // Pricefeed module genesis state pricefeedGS := pricefeed.GenesisState{ Params: pricefeed.Params{ Markets: []pricefeed.Market{ {MarketID: "usdx:usd", BaseAsset: "usdx", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "kava:usd", BaseAsset: "kava", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "bnb:usd", BaseAsset: "bnb", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, }, }, PostedPrices: []pricefeed.PostedPrice{ { MarketID: "usdx:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("1.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "kava:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("2.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "bnb:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("10.00"), Expiry: time.Now().Add(100 * time.Hour), }, }, } tApp.InitializeFromGenesisStates(authGS, app.GenesisState{pricefeed.ModuleName: pricefeed.ModuleCdc.MustMarshalJSON(pricefeedGS)}, app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(hardGS)}) keeper := tApp.GetHardKeeper() suite.app = tApp suite.ctx = ctx suite.keeper = keeper // Mint coins to Hard module account supplyKeeper := tApp.GetSupplyKeeper() supplyKeeper.MintCoins(ctx, types.ModuleAccountName, tc.args.initialModAccountBalance) if tc.args.createDeposit { err := suite.keeper.Deposit(suite.ctx, tc.args.depositor, tc.args.depositAmount) suite.Require().NoError(err) } err := suite.keeper.Withdraw(suite.ctx, tc.args.depositor, tc.args.withdrawAmount) if tc.errArgs.expectPass { suite.Require().NoError(err) acc := suite.getAccount(tc.args.depositor) suite.Require().Equal(tc.args.expectedAccountBalance, acc.GetCoins()) mAcc := suite.getModuleAccount(types.ModuleAccountName) suite.Require().Equal(tc.args.expectedModAccountBalance, mAcc.GetCoins()) testDeposit, f := suite.keeper.GetDeposit(suite.ctx, tc.args.depositor) if tc.errArgs.expectDelete { suite.Require().False(f) } else { suite.Require().True(f) suite.Require().Equal(tc.args.finalDepositAmount, testDeposit.Amount) } } else { suite.Require().Error(err) suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains)) } }) } } func (suite *KeeperTestSuite) TestLtvWithdraw() { type args struct { borrower sdk.AccAddress initialModuleCoins sdk.Coins initialBorrowerCoins sdk.Coins depositCoins sdk.Coins borrowCoins sdk.Coins futureTime int64 } type errArgs struct { expectPass bool contains string } type liqTest struct { name string args args errArgs errArgs } // Set up test constants model := types.NewInterestRateModel(sdk.MustNewDecFromStr("0"), sdk.MustNewDecFromStr("0.1"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("0.5")) reserveFactor := sdk.MustNewDecFromStr("0.05") oneMonthInSeconds := int64(2592000) borrower := sdk.AccAddress(crypto.AddressHash([]byte("testborrower"))) testCases := []liqTest{ { "invalid: withdraw is outside loan-to-value range", args{ borrower: borrower, initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))), // 10 * 2 = $20 borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))), // 8 * 2 = $16 futureTime: oneMonthInSeconds, }, errArgs{ expectPass: false, contains: "proposed withdraw outside loan-to-value range", }, }, } for _, tc := range testCases { suite.Run(tc.name, func() { // Initialize test app and set context tApp := app.NewTestApp() ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()}) // Auth module genesis state authGS := app.NewAuthGenState( []sdk.AccAddress{tc.args.borrower}, []sdk.Coins{tc.args.initialBorrowerCoins}, ) // Harvest module genesis state harvestGS := types.NewGenesisState(types.NewParams( types.MoneyMarkets{ types.NewMoneyMarket("ukava", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.8")), // Borrow Limit "kava:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor sdk.NewInt(100000000*KAVA_CF), // Auction Size model, // Interest Rate Model reserveFactor, // Reserve Factor sdk.MustNewDecFromStr("0.05")), // Keeper Reward Percent types.NewMoneyMarket("usdx", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.8")), // Borrow Limit "usdx:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor sdk.NewInt(100000000*KAVA_CF), // Auction Size model, // Interest Rate Model reserveFactor, // Reserve Factor sdk.MustNewDecFromStr("0.05")), // Keeper Reward Percent }, 0, // LTV counter ), types.DefaultAccumulationTimes, types.DefaultDeposits, types.DefaultBorrows, types.DefaultTotalSupplied, types.DefaultTotalBorrowed, types.DefaultTotalReserves, ) // Pricefeed module genesis state pricefeedGS := pricefeed.GenesisState{ Params: pricefeed.Params{ Markets: []pricefeed.Market{ {MarketID: "usdx:usd", BaseAsset: "usdx", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "kava:usd", BaseAsset: "kava", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, }, }, PostedPrices: []pricefeed.PostedPrice{ { MarketID: "usdx:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("1.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "kava:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("2.00"), Expiry: time.Now().Add(100 * time.Hour), }, }, } // Initialize test application tApp.InitializeFromGenesisStates(authGS, app.GenesisState{pricefeed.ModuleName: pricefeed.ModuleCdc.MustMarshalJSON(pricefeedGS)}, app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)}) // Mint coins to Harvest module account supplyKeeper := tApp.GetSupplyKeeper() supplyKeeper.MintCoins(ctx, types.ModuleAccountName, tc.args.initialModuleCoins) auctionKeeper := tApp.GetAuctionKeeper() keeper := tApp.GetHardKeeper() suite.app = tApp suite.ctx = ctx suite.keeper = keeper suite.auctionKeeper = auctionKeeper var err error // Run begin blocker to set up state hard.BeginBlocker(suite.ctx, suite.keeper) // Borrower deposits coins err = suite.keeper.Deposit(suite.ctx, tc.args.borrower, tc.args.depositCoins) suite.Require().NoError(err) // Borrower borrows coins err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.borrowCoins) suite.Require().NoError(err) // Attempting to withdraw fails err = suite.keeper.Withdraw(suite.ctx, tc.args.borrower, sdk.NewCoins(sdk.NewCoin("ukava", sdk.OneInt()))) suite.Require().Error(err) suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains)) // Set up future chain context and run begin blocker, increasing user's owed borrow balance runAtTime := time.Unix(suite.ctx.BlockTime().Unix()+(tc.args.futureTime), 0) liqCtx := suite.ctx.WithBlockTime(runAtTime) hard.BeginBlocker(liqCtx, suite.keeper) // Attempted withdraw of 1 coin still fails err = suite.keeper.Withdraw(suite.ctx, tc.args.borrower, sdk.NewCoins(sdk.NewCoin("ukava", sdk.OneInt()))) suite.Require().Error(err) suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains)) // Repay the initial principal err = suite.keeper.Repay(suite.ctx, tc.args.borrower, tc.args.borrowCoins) suite.Require().NoError(err) // Attempted withdraw of all deposited coins fails as user hasn't repaid interest debt err = suite.keeper.Withdraw(suite.ctx, tc.args.borrower, tc.args.depositCoins) suite.Require().Error(err) suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains)) // Withdrawing half the coins should succeed withdrawCoins := sdk.NewCoins(sdk.NewCoin("ukava", tc.args.depositCoins[0].Amount.Quo(sdk.NewInt(2)))) err = suite.keeper.Withdraw(suite.ctx, tc.args.borrower, withdrawCoins) suite.Require().NoError(err) }) } }