package keeper_test import ( "strings" "time" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/tendermint/tendermint/crypto" tmproto "github.com/tendermint/tendermint/proto/tendermint/types" "github.com/kava-labs/kava/app" auctiontypes "github.com/kava-labs/kava/x/auction/types" "github.com/kava-labs/kava/x/hard" "github.com/kava-labs/kava/x/hard/types" pricefeedtypes "github.com/kava-labs/kava/x/pricefeed/types" ) func (suite *KeeperTestSuite) TestKeeperLiquidation() { type args struct { borrower sdk.AccAddress keeper sdk.AccAddress keeperRewardPercent sdk.Dec initialModuleCoins sdk.Coins initialBorrowerCoins sdk.Coins initialKeeperCoins sdk.Coins depositCoins []sdk.Coin borrowCoins sdk.Coins liquidateAfter time.Duration expectedTotalSuppliedCoins sdk.Coins expectedTotalBorrowedCoins sdk.Coins expectedKeeperCoins sdk.Coins // coins keeper address should have after successfully liquidating position expectedBorrowerCoins sdk.Coins // additional coins (if any) the borrower address should have after successfully liquidating position expectedAuctions []auctiontypes.Auction // the auctions we should expect to find have been started } 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") oneMonthDur := time.Second * 30 * 24 * 3600 borrower := sdk.AccAddress(crypto.AddressHash([]byte("testborrower"))) keeper := sdk.AccAddress(crypto.AddressHash([]byte("testkeeper"))) // Set up auction constants layout := "2006-01-02T15:04:05.000Z" endTimeStr := "9000-01-01T00:00:00.000Z" endTime, _ := time.Parse(layout, endTimeStr) lotReturns, _ := auctiontypes.NewWeightedAddresses([]sdk.AccAddress{borrower}, []sdk.Int{sdk.NewInt(100)}) testCases := []liqTest{ { "valid: keeper liquidates borrow", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))), borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))), liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins(sdk.NewInt64Coin("ukava", 100004118)), expectedTotalBorrowedCoins: nil, expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100500020))), expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98000001))), // initial - deposit + borrow + liquidation leftovers expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 9500390), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 8004766), LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: 0% keeper rewards", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.0"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))), borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))), liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins(sdk.NewInt64Coin("ukava", 100_004_117)), expectedTotalBorrowedCoins: sdk.NewCoins(sdk.NewInt64Coin("ukava", 1)), expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 10000411), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 8004765), LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: 100% keeper reward", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("1.0"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))), borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))), liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins(sdk.NewInt64Coin("ukava", 100_004_117)), expectedTotalBorrowedCoins: sdk.NewCoins(sdk.NewInt64Coin("ukava", 8_004_766)), expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(110_000_411))), expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers expectedAuctions: nil, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: single deposit, multiple borrows", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(1000*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(1000*BTCB_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF))), // $100 * 0.8 = $80 borrowable borrowCoins: sdk.NewCoins(sdk.NewCoin("usdc", sdk.NewInt(20*KAVA_CF)), sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(2*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(0.2*BTCB_CF))), // $20+$20+$20 = $80 borrowed liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins( sdk.NewInt64Coin("ukava", 1000000710), sdk.NewInt64Coin("usdc", 1000003120), sdk.NewInt64Coin("bnb", 100000003123), sdk.NewInt64Coin("btc", 100000000031), ), expectedTotalBorrowedCoins: nil, expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(102500001))), expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("usdc", sdk.NewInt(20*KAVA_CF)), sdk.NewCoin("ukava", sdk.NewInt(60000002)), sdk.NewCoin("bnb", sdk.NewInt(2*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(0.2*BTCB_CF))), // initial - deposit + borrow + liquidation leftovers expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 11874430), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("bnb", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("bnb", 200003287), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 2, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 11874254), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("btc", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("btc", 20000032), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 3, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 11875163), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 10000782), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 4, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 11876185), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("usdc", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("usdc", 20003284), LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: multiple deposits, single borrow", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1000*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(100*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(100*BTCB_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(50*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(10*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(1*BTCB_CF))), // $100 + $100 + $100 = $300 * 0.8 = $240 borrowable // $100 * 0.8 = $80 borrowable borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(120*KAVA_CF))), // $240 borrowed liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins( sdk.NewInt64Coin("ukava", 1000101456), ), expectedTotalBorrowedCoins: nil, expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(102500253)), sdk.NewCoin("bnb", sdk.NewInt(0.5*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(0.05*BTCB_CF))), // 5% of each seized coin + initial balances expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(170.000001*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(90*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(99*BTCB_CF))), expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("bnb", 950000000), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 40036023), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 2, Initiator: "hard", Lot: sdk.NewInt64Coin("btc", 95000000), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 40036023), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 3, Initiator: "hard", Lot: sdk.NewInt64Coin("ukava", 47504818), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 40040087), LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: multiple stablecoin deposits, multiple variable coin borrows", // Auctions: total lot value = $285 ($300 of deposits - $15 keeper reward), total max bid value = $270 args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(1000*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(1000*BTCB_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("usdc", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(100*KAVA_CF))), // $100 + $100 + $100 = $300 * 0.9 = $270 borrowable borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(35*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(10*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(1*BTCB_CF))), // $270 borrowed liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins( sdk.NewInt64Coin("bnb", 100000078047), sdk.NewInt64Coin("btc", 100000000780), sdk.NewInt64Coin("ukava", 1000009550), sdk.NewInt64Coin("usdx", 1), ), expectedTotalBorrowedCoins: nil, expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(5*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(5*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(5*KAVA_CF))), // 5% of each seized coin + initial balances expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(135*KAVA_CF)), sdk.NewCoin("bnb", sdk.NewInt(10*BNB_CF)), sdk.NewCoin("btc", sdk.NewInt(1*BTCB_CF)), sdk.NewCoin("usdx", sdk.NewInt(0.000001*KAVA_CF))), expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("usdc", 95000000), // $95.00 Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("bnb", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("bnb", 900097134), // $90.00 LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 2, Initiator: "hard", Lot: sdk.NewInt64Coin("usdt", 10552835), // $10.55 Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("bnb", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("bnb", 99985020), // $10.00 LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 3, Initiator: "hard", Lot: sdk.NewInt64Coin("usdt", 84447165), // $84.45 Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("btc", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("btc", 80011211), // $80.01 LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 4, Initiator: "hard", Lot: sdk.NewInt64Coin("usdx", 21097866), // $21.10 Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("btc", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("btc", 19989610), // $19.99 LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 5, Initiator: "hard", Lot: sdk.NewInt64Coin("usdx", 73902133), //$73.90 Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("ukava", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("ukava", 35010052), // $70.02 LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "valid: multiple stablecoin deposits, multiple stablecoin borrows", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("dai", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(1000*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("dai", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(1000*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("dai", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(1000*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("dai", sdk.NewInt(350*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(200*KAVA_CF))), borrowCoins: sdk.NewCoins(sdk.NewCoin("usdt", sdk.NewInt(250*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(245*KAVA_CF))), liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins( sdk.NewInt64Coin("dai", 1000000000), sdk.NewInt64Coin("usdc", 1000000001), sdk.NewInt64Coin("usdt", 1000482503), sdk.NewInt64Coin("usdx", 1000463500), ), expectedTotalBorrowedCoins: nil, expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("dai", sdk.NewInt(1017.50*KAVA_CF)), sdk.NewCoin("usdt", sdk.NewInt(1000*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(1010*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(1000*KAVA_CF))), expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("dai", sdk.NewInt(650*KAVA_CF)), sdk.NewCoin("usdc", sdk.NewInt(800000001)), sdk.NewCoin("usdt", sdk.NewInt(1250*KAVA_CF)), sdk.NewCoin("usdx", sdk.NewInt(1245*KAVA_CF))), expectedAuctions: []auctiontypes.Auction{ &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 1, Initiator: "hard", Lot: sdk.NewInt64Coin("dai", 263894126), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("usdt", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("usdt", 250507897), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 2, Initiator: "hard", Lot: sdk.NewInt64Coin("dai", 68605874), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("usdx", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("usdx", 65125788), LotReturns: lotReturns, }, &auctiontypes.CollateralAuction{ BaseAuction: auctiontypes.BaseAuction{ ID: 3, Initiator: "hard", Lot: sdk.NewInt64Coin("usdc", 189999999), Bidder: sdk.AccAddress(nil), Bid: sdk.NewInt64Coin("usdx", 0), HasReceivedBids: false, EndTime: endTime, MaxEndTime: endTime, }, CorrespondingDebt: sdk.NewInt64Coin("debt", 0), MaxBid: sdk.NewInt64Coin("usdx", 180362106), LotReturns: lotReturns, }, }, }, errArgs{ expectPass: true, contains: "", }, }, { "invalid: borrow not liquidatable", args{ borrower: borrower, keeper: keeper, keeperRewardPercent: sdk.MustNewDecFromStr("0.05"), initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), initialKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))), depositCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(20*KAVA_CF))), // Deposit 20 KAVA borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(5*KAVA_CF))), // Borrow 5 KAVA liquidateAfter: oneMonthDur, expectedTotalSuppliedCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(120001624))), expectedTotalBorrowedCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(5001709))), expectedKeeperCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100.5*KAVA_CF))), expectedBorrowerCoins: sdk.NewCoins(), expectedAuctions: []auctiontypes.Auction{}, }, errArgs{ expectPass: false, contains: "borrow not liquidatable", }, }, } for _, tc := range testCases { suite.Run(tc.name, func() { // Initialize test app and set context tApp := app.NewTestApp() ctx := tApp.NewContext(true, tmproto.Header{Height: 1, Time: time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC)}) // account which will deposit "initial module account coins" depositor := sdk.AccAddress(crypto.AddressHash([]byte("testdepositor"))) // Auth module genesis state authGS := app.NewFundedGenStateWithCoins( tApp.AppCodec(), []sdk.Coins{ tc.args.initialBorrowerCoins, tc.args.initialKeeperCoins, tc.args.initialModuleCoins, }, []sdk.AccAddress{ tc.args.borrower, tc.args.keeper, depositor, }, ) // Hard module genesis state hardGS := types.NewGenesisState(types.NewParams( types.MoneyMarkets{ types.NewMoneyMarket("usdx", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.9")), // Borrow Limit "usdx:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent types.NewMoneyMarket("usdt", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.9")), // Borrow Limit "usdt:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent types.NewMoneyMarket("usdc", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.9")), // Borrow Limit "usdc:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent types.NewMoneyMarket("dai", types.NewBorrowLimit(false, sdk.NewDec(100000000*KAVA_CF), sdk.MustNewDecFromStr("0.9")), // Borrow Limit "dai:usd", // Market ID sdk.NewInt(KAVA_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent 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 model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent types.NewMoneyMarket("bnb", types.NewBorrowLimit(false, sdk.NewDec(100000000*BNB_CF), sdk.MustNewDecFromStr("0.8")), // Borrow Limit "bnb:usd", // Market ID sdk.NewInt(BNB_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent types.NewMoneyMarket("btc", types.NewBorrowLimit(false, sdk.NewDec(100000000*BTCB_CF), sdk.MustNewDecFromStr("0.8")), // Borrow Limit "btc:usd", // Market ID sdk.NewInt(BTCB_CF), // Conversion Factor model, // Interest Rate Model reserveFactor, // Reserve Factor tc.args.keeperRewardPercent), // Keeper Reward Percent }, sdk.NewDec(10), ), types.DefaultAccumulationTimes, types.DefaultDeposits, types.DefaultBorrows, types.DefaultTotalSupplied, types.DefaultTotalBorrowed, types.DefaultTotalReserves, ) // Pricefeed module genesis state pricefeedGS := pricefeedtypes.GenesisState{ Params: pricefeedtypes.Params{ Markets: []pricefeedtypes.Market{ {MarketID: "usdx:usd", BaseAsset: "usdx", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "usdt:usd", BaseAsset: "usdt", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "usdc:usd", BaseAsset: "usdc", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, {MarketID: "dai:usd", BaseAsset: "dai", 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}, {MarketID: "btc:usd", BaseAsset: "btc", QuoteAsset: "usd", Oracles: []sdk.AccAddress{}, Active: true}, }, }, PostedPrices: []pricefeedtypes.PostedPrice{ { MarketID: "usdx:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("1.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "usdt:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("1.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "usdc:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("1.00"), Expiry: time.Now().Add(100 * time.Hour), }, { MarketID: "dai: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), }, { MarketID: "btc:usd", OracleAddress: sdk.AccAddress{}, Price: sdk.MustNewDecFromStr("100.00"), Expiry: time.Now().Add(100 * time.Hour), }, }, } // Initialize test application tApp.InitializeFromGenesisStates(authGS, app.GenesisState{pricefeedtypes.ModuleName: tApp.AppCodec().MustMarshalJSON(&pricefeedGS)}, app.GenesisState{types.ModuleName: tApp.AppCodec().MustMarshalJSON(&hardGS)}) keeper := tApp.GetHardKeeper() suite.app = tApp suite.ctx = ctx suite.keeper = keeper suite.auctionKeeper = tApp.GetAuctionKeeper() var err error // Run begin blocker to set up state hard.BeginBlocker(suite.ctx, suite.keeper) // Deposit initial module account coins err = suite.keeper.Deposit(suite.ctx, depositor, tc.args.initialModuleCoins) suite.Require().NoError(err) // Deposit coins err = suite.keeper.Deposit(suite.ctx, tc.args.borrower, tc.args.depositCoins) suite.Require().NoError(err) // Borrow coins err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.borrowCoins) suite.Require().NoError(err) // Set up liquidation chain context and run begin blocker runAtTime := suite.ctx.BlockTime().Add(tc.args.liquidateAfter) liqCtx := suite.ctx.WithBlockTime(runAtTime) hard.BeginBlocker(liqCtx, suite.keeper) // Check borrow exists before liquidation _, foundBorrowBefore := suite.keeper.GetBorrow(liqCtx, tc.args.borrower) suite.Require().True(foundBorrowBefore) // Check that the user's deposit exists before liquidation _, foundDepositBefore := suite.keeper.GetDeposit(liqCtx, tc.args.borrower) suite.Require().True(foundDepositBefore) // Fetch supplied and borrowed coins pre-liquidation suppliedCoinsPre, foundSuppliedCoinsPre := suite.keeper.GetSuppliedCoins(liqCtx) suite.Require().True(foundSuppliedCoinsPre) borrowedCoinsPre, foundBorrowedCoinsPre := suite.keeper.GetBorrowedCoins(liqCtx) suite.Require().True(foundBorrowedCoinsPre) // Attempt to liquidate err = suite.keeper.AttemptKeeperLiquidation(liqCtx, tc.args.keeper, tc.args.borrower) if tc.errArgs.expectPass { suite.Require().NoError(err) // Check borrow does not exist after liquidation _, foundBorrowAfter := suite.keeper.GetBorrow(liqCtx, tc.args.borrower) suite.Require().False(foundBorrowAfter) // Check deposits do not exist after liquidation _, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower) suite.Require().False(foundDepositAfter) // Check that the keeper's balance increased by reward % of all the borrowed coins accKeeper := suite.getAccountAtCtx(tc.args.keeper, liqCtx) suite.Require().Equal(tc.args.expectedKeeperCoins, suite.getAccountCoins(accKeeper)) // Check that borrower's balance contains the expected coins accBorrower := suite.getAccountAtCtx(tc.args.borrower, liqCtx) suite.Require().Equal(tc.args.expectedBorrowerCoins, suite.getAccountCoins(accBorrower)) // Check that the expected auctions have been created auctions := suite.auctionKeeper.GetAllAuctions(liqCtx) suite.Require().Equal(tc.args.expectedAuctions, auctions) // Check that supplied and borrowed coins have been updated post-liquidation suppliedCoinsPost, _ := suite.keeper.GetSuppliedCoins(liqCtx) suite.Require().Equal(tc.args.expectedTotalSuppliedCoins, suppliedCoinsPost) borrowedCoinsPost, _ := suite.keeper.GetBorrowedCoins(liqCtx) suite.Require().True(tc.args.expectedTotalBorrowedCoins.IsEqual(borrowedCoinsPost)) } else { suite.Require().Error(err) suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains)) // Check that the user's borrow exists _, foundBorrowAfter := suite.keeper.GetBorrow(liqCtx, tc.args.borrower) suite.Require().True(foundBorrowAfter) // Check that the user's deposits exist _, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower) suite.Require().True(foundDepositAfter) // Check that no auctions have been created auctions := suite.auctionKeeper.GetAllAuctions(liqCtx) suite.Require().True(len(auctions) == 0) // Check that supplied and borrowed coins have not been updated post-liquidation suite.Require().Equal(tc.args.expectedTotalSuppliedCoins, suppliedCoinsPre) suite.Require().True(tc.args.expectedTotalBorrowedCoins.IsEqual(borrowedCoinsPre)) } }) } }