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