mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-11-10 10:05:18 +00:00
Hard: automatic liquidation by LTV index (#743)
* hotfix * update params, keys * liquidation by keeper * refactor GetPendingBorrowBalance * fix app build * elegant handling of denom arrays * auction deposit in lots * add error msg * update tests with new params * happy path liquidation test * update liquidator macc name * refactor reward % to money market params * refactor tests for updated params * compile: harvest liquidator module account * add liquidate msg * liquidation approach * update liquidations * return remaining deposit coins to original borrowr * check keeper reward before sending * introduce ValuationMap * convert Ints <> Decs * implement double-loop * ModuleAccountName * sort keys for deterministic auctions * test: correct auctions created * test: preset keeper coins * ensure deterministic iteration * test cases * update repay test * auction fixes, tests * LTV index * user actions sync interest and update ltv index * tests: all deposits must have money markets * reorder borrow logic * ltv index liquidation logic * test specific items in ltv index * index liquidation tests * update repay to spendable coins * revisions * remove address sort method * merge master test package
This commit is contained in:
Denali Marsh
GitHub
parent
6c0890d5ff
commit
83a5f51c11
@ -12,5 +12,6 @@ func BeginBlocker(ctx sdk.Context, k Keeper) {
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k.SetPreviousDelegationDistribution(ctx, ctx.BlockTime(), k.BondDenom(ctx))
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}
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k.ApplyInterestRateUpdates(ctx)
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k.AttemptIndexLiquidations(ctx)
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k.SetPreviousBlockTime(ctx, ctx.BlockTime())
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}
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@ -23,7 +23,7 @@ func (k Keeper) Borrow(ctx sdk.Context, borrower sdk.AccAddress, coins sdk.Coins
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}
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// Get current stored LTV based on stored borrows/deposits
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prevLtv, shouldRemoveIndex, err := k.GetCurrentLTV(ctx, borrower)
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prevLtv, shouldRemoveIndex, err := k.GetStoreLTV(ctx, borrower)
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if err != nil {
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return err
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}
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@ -31,7 +31,7 @@ func (k Keeper) Borrow(ctx sdk.Context, borrower sdk.AccAddress, coins sdk.Coins
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// If the user has an existing borrow, sync its outstanding interest
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_, found := k.GetBorrow(ctx, borrower)
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if found {
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k.SyncOustandingInterest(ctx, borrower)
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k.SyncOutstandingInterest(ctx, borrower)
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}
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// Validate borrow amount within user and protocol limits
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@ -92,8 +92,8 @@ func (k Keeper) Borrow(ctx sdk.Context, borrower sdk.AccAddress, coins sdk.Coins
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return nil
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}
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// SyncOustandingInterest updates the user's owed interest on newly borrowed coins to the latest global state
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func (k Keeper) SyncOustandingInterest(ctx sdk.Context, addr sdk.AccAddress) {
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// SyncOutstandingInterest updates the user's owed interest on newly borrowed coins to the latest global state
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func (k Keeper) SyncOutstandingInterest(ctx sdk.Context, addr sdk.AccAddress) {
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totalNewInterest := sdk.Coins{}
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// Update user's borrow index list for each asset in the 'coins' array.
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@ -283,6 +283,7 @@ func (suite *KeeperTestSuite) TestBorrow() {
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types.NewMoneyMarket("bnb", types.NewBorrowLimit(false, sdk.NewDec(100000000*BNB_CF), tc.args.loanToValueBNB), "bnb:usd", sdk.NewInt(BNB_CF), 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()),
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types.NewMoneyMarket("xyz", types.NewBorrowLimit(false, sdk.NewDec(1), tc.args.loanToValueBNB), "xyz:usd", sdk.NewInt(1), sdk.NewInt(1), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec()),
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},
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0, // LTV counter
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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// Pricefeed module genesis state
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@ -268,6 +268,7 @@ func (suite *KeeperTestSuite) TestClaim() {
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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()),
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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()),
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},
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0, // LTV counter
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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tApp.InitializeFromGenesisStates(authGS, app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
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if tc.args.validatorVesting {
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@ -11,12 +11,12 @@ import (
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// Deposit deposit
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func (k Keeper) Deposit(ctx sdk.Context, depositor sdk.AccAddress, amount sdk.Coin) error {
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// Get current stored LTV based on stored borrows/deposits
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prevLtv, shouldRemoveIndex, err := k.GetCurrentLTV(ctx, depositor)
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prevLtv, shouldRemoveIndex, err := k.GetStoreLTV(ctx, depositor)
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if err != nil {
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return err
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}
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k.SyncOustandingInterest(ctx, depositor)
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k.SyncOutstandingInterest(ctx, depositor)
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err = k.ValidateDeposit(ctx, amount)
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if err != nil {
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@ -115,6 +115,7 @@ func (suite *KeeperTestSuite) TestDeposit() {
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types.NewMoneyMarket("bnb", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "bnb:usd", sdk.NewInt(1000000), 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()),
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types.NewMoneyMarket("btcb", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "btcb:usd", sdk.NewInt(1000000), sdk.NewInt(BTCB_CF*1000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec()),
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},
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0, // LTV counter
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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// Pricefeed module genesis state
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@ -303,6 +304,7 @@ func (suite *KeeperTestSuite) TestWithdraw() {
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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()),
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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()),
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},
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0, // LTV counter
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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tApp.InitializeFromGenesisStates(authGS, app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
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keeper := tApp.GetHarvestKeeper()
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@ -666,6 +666,7 @@ func (suite *KeeperTestSuite) TestInterest() {
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tc.args.reserveFactor, // Reserve Factor
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sdk.ZeroDec()), // Keeper Reward Percentage
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},
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0, // LTV counter
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), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
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// Pricefeed module genesis state
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@ -376,7 +376,7 @@ func (k Keeper) RemoveFromLtvIndex(ctx sdk.Context, ltv sdk.Dec, borrower sdk.Ac
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func (k Keeper) IterateLtvIndex(ctx sdk.Context, cutoffCount int,
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cb func(addr sdk.AccAddress) (stop bool)) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.LtvIndexPrefix)
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iterator := store.Iterator(nil, nil)
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iterator := store.ReverseIterator(nil, nil)
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count := 0
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defer iterator.Close()
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@ -394,8 +394,8 @@ func (k Keeper) IterateLtvIndex(ctx sdk.Context, cutoffCount int,
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}
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// GetLtvIndexSlice returns the first 10 items in the LTV index from the store
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func (k Keeper) GetLtvIndexSlice(ctx sdk.Context) (addrs []sdk.AccAddress) {
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k.IterateLtvIndex(ctx, 10, func(addr sdk.AccAddress) bool {
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func (k Keeper) GetLtvIndexSlice(ctx sdk.Context, count int) (addrs []sdk.AccAddress) {
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k.IterateLtvIndex(ctx, count, func(addr sdk.AccAddress) bool {
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addrs = append(addrs, addr)
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return false
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})
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@ -2,6 +2,7 @@ package keeper_test
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import (
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"fmt"
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"sort"
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"strconv"
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"testing"
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@ -160,7 +161,7 @@ func (suite *KeeperTestSuite) TestGetSetDeleteInterestRateModel() {
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denom := "test"
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model := types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10"))
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borrowLimit := types.NewBorrowLimit(false, sdk.MustNewDecFromStr("0.2"), sdk.MustNewDecFromStr("0.5"))
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moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(KAVA_CF*1000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
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moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(1000000000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
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_, f := suite.keeper.GetMoneyMarket(suite.ctx, denom)
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suite.Require().False(f)
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@ -186,7 +187,7 @@ func (suite *KeeperTestSuite) TestIterateInterestRateModels() {
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denom := testDenom + strconv.Itoa(i)
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model := types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10"))
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borrowLimit := types.NewBorrowLimit(false, sdk.MustNewDecFromStr("0.2"), sdk.MustNewDecFromStr("0.5"))
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moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(KAVA_CF*1000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
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moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(1000000000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
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// Store money market in the module's store
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suite.Require().NotPanics(func() { suite.keeper.SetMoneyMarket(suite.ctx, denom, moneyMarket) })
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@ -210,7 +211,7 @@ func (suite *KeeperTestSuite) TestIterateInterestRateModels() {
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func (suite *KeeperTestSuite) TestSetDeleteLtvIndex() {
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// LTV index should have 0 items
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firstAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx)
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firstAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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suite.Require().Equal(0, len(firstAddrs))
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// Add an item to the LTV index
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@ -219,7 +220,7 @@ func (suite *KeeperTestSuite) TestSetDeleteLtvIndex() {
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suite.Require().NotPanics(func() { suite.keeper.InsertIntoLtvIndex(suite.ctx, ltv, addr) })
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// LTV index should have 1 item
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secondAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx)
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secondAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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suite.Require().Equal(1, len(secondAddrs))
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// Attempt to remove invalid item from LTV index
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@ -227,14 +228,14 @@ func (suite *KeeperTestSuite) TestSetDeleteLtvIndex() {
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suite.Require().NotPanics(func() { suite.keeper.RemoveFromLtvIndex(suite.ctx, fakeLtv, addr) })
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// LTV index should still have 1 item
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thirdAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx)
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thirdAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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suite.Require().Equal(1, len(thirdAddrs))
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// Attempt to remove valid item from LTV index
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suite.Require().NotPanics(func() { suite.keeper.RemoveFromLtvIndex(suite.ctx, ltv, addr) })
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// LTV index should still have 0 items
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fourthAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx)
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fourthAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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suite.Require().Equal(0, len(fourthAddrs))
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}
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@ -252,8 +253,23 @@ func (suite *KeeperTestSuite) TestIterateLtvIndex() {
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}
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// Only the first 10 addresses should be returned
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sliceAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx)
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suite.Require().Equal(setAddrs[:10], sliceAddrs)
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sliceAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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suite.Require().Equal(addressSort(setAddrs[10:20]), addressSort(sliceAddrs))
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// Insert an additional item into the LTV index that should be returned in the first 10 elements
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addr := sdk.AccAddress("test" + fmt.Sprint(21))
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ltv := sdk.OneDec().Add(sdk.MustNewDecFromStr("15").Quo(sdk.NewDec(10)))
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suite.Require().NotPanics(func() { suite.keeper.InsertIntoLtvIndex(suite.ctx, ltv, addr) })
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// Fetch the updated LTV index
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updatedSliceAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
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sawAddr := false
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for _, updatedSliceAddr := range updatedSliceAddrs {
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if updatedSliceAddr.Equals(addr) {
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sawAddr = true
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}
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}
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suite.Require().Equal(true, sawAddr)
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}
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func (suite *KeeperTestSuite) getAccount(addr sdk.AccAddress) authexported.Account {
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@ -276,6 +292,21 @@ func (suite *KeeperTestSuite) getModuleAccountAtCtx(name string, ctx sdk.Context
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return sk.GetModuleAccount(ctx, name)
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}
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func addressSort(addrs []sdk.AccAddress) (sortedAddrs []sdk.AccAddress) {
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addrStrs := []string{}
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for _, addr := range addrs {
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addrStrs = append(addrStrs, addr.String())
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}
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sort.Strings(addrStrs)
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for _, addrStr := range addrStrs {
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addr, _ := sdk.AccAddressFromBech32(addrStr)
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sortedAddrs = append(sortedAddrs, addr)
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}
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return sortedAddrs
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}
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func TestKeeperTestSuite(t *testing.T) {
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suite.Run(t, new(KeeperTestSuite))
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}
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@ -1,6 +1,8 @@
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package keeper
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import (
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"errors"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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@ -16,23 +18,31 @@ type LiqData struct {
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// AttemptIndexLiquidations attempts to liquidate the lowest LTV borrows
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func (k Keeper) AttemptIndexLiquidations(ctx sdk.Context) error {
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// use moneyMarketCache := map[string]types.MoneyMarket{}
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// Iterate over index
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// Get borrower's address
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// Use borrower's address to fetch borrow object
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// Calculate outstanding interest and add to borrow balances
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// Use current asset prices from pricefeed to calculate current LTV for each asset
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// If LTV of any asset is over the max, liquidate it by
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// Sending coins to auction module
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// (?) Removing borrow from the store
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// (?) Removing borrow LTV from LTV index
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params := k.GetParams(ctx)
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borrowers := k.GetLtvIndexSlice(ctx, params.CheckLtvIndexCount)
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for _, borrower := range borrowers {
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_, err := k.AttemptKeeperLiquidation(ctx, sdk.AccAddress(types.LiquidatorAccount), borrower)
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if err != nil {
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if !errors.Is(err, types.ErrBorrowNotLiquidatable) {
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panic(err)
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}
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}
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}
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return nil
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}
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// AttemptKeeperLiquidation enables a keeper to liquidate an individual borrower's position
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func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress, borrower sdk.AccAddress) error {
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func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress, borrower sdk.AccAddress) (bool, error) {
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prevLtv, shouldInsertIndex, err := k.GetStoreLTV(ctx, borrower)
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if err != nil {
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return false, err
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}
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k.SyncOutstandingInterest(ctx, borrower)
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k.UpdateItemInLtvIndex(ctx, prevLtv, shouldInsertIndex, borrower)
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// Fetch deposits and parse coin denoms
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deposits := k.GetDepositsByUser(ctx, borrower)
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depositDenoms := []string{}
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@ -41,8 +51,11 @@ func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress,
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}
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// Fetch borrow balances and parse coin denoms
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borrowBalances := k.GetBorrowBalance(ctx, borrower)
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borrowDenoms := getDenoms(borrowBalances)
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borrows, found := k.GetBorrow(ctx, borrower)
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if !found {
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return false, types.ErrBorrowNotFound
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}
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borrowDenoms := getDenoms(borrows.Amount)
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liqMap := make(map[string]LiqData)
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@ -51,12 +64,12 @@ func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress,
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for _, denom := range denoms {
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mm, found := k.GetMoneyMarket(ctx, denom)
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if !found {
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return sdkerrors.Wrapf(types.ErrMarketNotFound, "no market found for denom %s", denom)
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return false, sdkerrors.Wrapf(types.ErrMarketNotFound, "no market found for denom %s", denom)
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}
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priceData, err := k.pricefeedKeeper.GetCurrentPrice(ctx, mm.SpotMarketID)
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if err != nil {
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return err
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return false, err
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}
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liqMap[denom] = LiqData{priceData.Price, mm.BorrowLimit.LoanToValue, mm.ConversionFactor}
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@ -73,7 +86,7 @@ func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress,
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}
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totalBorrowedUSDAmount := sdk.ZeroDec()
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for _, coin := range borrowBalances {
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for _, coin := range borrows.Amount {
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lData := liqMap[coin.Denom]
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usdValue := sdk.NewDecFromInt(coin.Amount).Quo(sdk.NewDecFromInt(lData.conversionFactor)).Mul(lData.price)
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totalBorrowedUSDAmount = totalBorrowedUSDAmount.Add(usdValue)
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@ -81,23 +94,29 @@ func (k Keeper) AttemptKeeperLiquidation(ctx sdk.Context, keeper sdk.AccAddress,
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// Validate that the proposed borrow's USD value is within user's borrowable limit
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if totalBorrowedUSDAmount.LTE(totalBorrowableUSDAmount) {
|
||||
return sdkerrors.Wrapf(types.ErrBorrowNotLiquidatable, "borrowed %s <= borrowable %s", totalBorrowedUSDAmount, totalBorrowableUSDAmount)
|
||||
return false, sdkerrors.Wrapf(types.ErrBorrowNotLiquidatable, "borrowed %s <= borrowable %s", totalBorrowedUSDAmount, totalBorrowableUSDAmount)
|
||||
}
|
||||
|
||||
// Sending coins to auction module with keeper address getting % of the profits
|
||||
borrow, _ := k.GetBorrow(ctx, borrower)
|
||||
err := k.SeizeDeposits(ctx, keeper, liqMap, deposits, borrowBalances, depositDenoms, borrowDenoms)
|
||||
// Seize deposits and auciton them off
|
||||
err = k.SeizeDeposits(ctx, keeper, liqMap, deposits, borrows.Amount, depositDenoms, borrowDenoms)
|
||||
if err != nil {
|
||||
return err
|
||||
return false, err
|
||||
}
|
||||
|
||||
currLtv, _, err := k.GetStoreLTV(ctx, borrower)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
k.RemoveFromLtvIndex(ctx, currLtv, borrower)
|
||||
|
||||
borrow, _ := k.GetBorrow(ctx, borrower)
|
||||
k.DeleteBorrow(ctx, borrow)
|
||||
|
||||
for _, oldDeposit := range deposits {
|
||||
k.DeleteDeposit(ctx, oldDeposit)
|
||||
}
|
||||
|
||||
return nil
|
||||
return true, err
|
||||
}
|
||||
|
||||
// SeizeDeposits seizes a list of deposits and sends them to auction
|
||||
@ -111,16 +130,20 @@ func (k Keeper) SeizeDeposits(ctx sdk.Context, keeper sdk.AccAddress, liqMap map
|
||||
amount := deposit.Amount.Amount
|
||||
mm, _ := k.GetMoneyMarket(ctx, denom)
|
||||
|
||||
keeperReward := mm.KeeperRewardPercentage.MulInt(amount).TruncateInt()
|
||||
if keeperReward.GT(sdk.ZeroInt()) {
|
||||
// Send keeper their reward
|
||||
keeperCoin := sdk.NewCoin(denom, keeperReward)
|
||||
err := k.supplyKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleAccountName, keeper, sdk.NewCoins(keeperCoin))
|
||||
if err != nil {
|
||||
return err
|
||||
// No rewards for anyone if liquidated by LTV index
|
||||
if !keeper.Equals(sdk.AccAddress(types.LiquidatorAccount)) {
|
||||
keeperReward := mm.KeeperRewardPercentage.MulInt(amount).TruncateInt()
|
||||
if keeperReward.GT(sdk.ZeroInt()) {
|
||||
// Send keeper their reward
|
||||
keeperCoin := sdk.NewCoin(denom, keeperReward)
|
||||
err := k.supplyKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleAccountName, keeper, sdk.NewCoins(keeperCoin))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
amount = amount.Sub(keeperReward)
|
||||
}
|
||||
amount = amount.Sub(keeperReward)
|
||||
}
|
||||
|
||||
// Add remaining deposit coin to aucDeposits
|
||||
aucDeposits = aucDeposits.Add(sdk.NewCoin(denom, amount))
|
||||
}
|
||||
@ -253,8 +276,9 @@ func (k Keeper) StartAuctions(ctx sdk.Context, borrower sdk.AccAddress, borrows,
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetCurrentLTV calculates the user's current LTV based on their deposits/borrows in the store
|
||||
func (k Keeper) GetCurrentLTV(ctx sdk.Context, addr sdk.AccAddress) (sdk.Dec, bool, error) {
|
||||
// GetStoreLTV calculates the user's current LTV based on their deposits/borrows in the store
|
||||
// and does not include any outsanding interest.
|
||||
func (k Keeper) GetStoreLTV(ctx sdk.Context, addr sdk.AccAddress) (sdk.Dec, bool, error) {
|
||||
// Fetch deposits and parse coin denoms
|
||||
deposits := k.GetDepositsByUser(ctx, addr)
|
||||
depositDenoms := []string{}
|
||||
@ -263,11 +287,11 @@ func (k Keeper) GetCurrentLTV(ctx sdk.Context, addr sdk.AccAddress) (sdk.Dec, bo
|
||||
}
|
||||
|
||||
// Fetch borrow balances and parse coin denoms
|
||||
borrowBalances := k.GetBorrowBalance(ctx, addr)
|
||||
if borrowBalances.IsZero() {
|
||||
borrows, found := k.GetBorrow(ctx, addr)
|
||||
if !found {
|
||||
return sdk.ZeroDec(), false, nil
|
||||
}
|
||||
borrowDenoms := getDenoms(borrowBalances)
|
||||
borrowDenoms := getDenoms(borrows.Amount)
|
||||
|
||||
liqMap := make(map[string]LiqData)
|
||||
|
||||
@ -297,7 +321,7 @@ func (k Keeper) GetCurrentLTV(ctx sdk.Context, addr sdk.AccAddress) (sdk.Dec, bo
|
||||
|
||||
// Build valuation map to hold borrow coin USD valuations
|
||||
borrowCoinValues := types.NewValuationMap()
|
||||
for _, bCoin := range borrowBalances {
|
||||
for _, bCoin := range borrows.Amount {
|
||||
bData := liqMap[bCoin.Denom]
|
||||
bCoinUsdValue := sdk.NewDecFromInt(bCoin.Amount).Quo(sdk.NewDecFromInt(bData.conversionFactor)).Mul(bData.price)
|
||||
borrowCoinValues.Increment(bCoin.Denom, bCoinUsdValue)
|
||||
@ -316,7 +340,7 @@ func (k Keeper) GetCurrentLTV(ctx sdk.Context, addr sdk.AccAddress) (sdk.Dec, bo
|
||||
// UpdateItemInLtvIndex updates the key a borrower's address is stored under in the LTV index
|
||||
func (k Keeper) UpdateItemInLtvIndex(ctx sdk.Context, prevLtv sdk.Dec,
|
||||
shouldRemoveIndex bool, borrower sdk.AccAddress) error {
|
||||
currLtv, shouldInsertIndex, err := k.GetCurrentLTV(ctx, borrower)
|
||||
currLtv, shouldInsertIndex, err := k.GetStoreLTV(ctx, borrower)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
@ -16,6 +16,755 @@ import (
|
||||
"github.com/kava-labs/kava/x/pricefeed"
|
||||
)
|
||||
|
||||
func (suite *KeeperTestSuite) TestIndexLiquidation() {
|
||||
type args struct {
|
||||
borrower sdk.AccAddress
|
||||
initialModuleCoins sdk.Coins
|
||||
initialBorrowerCoins sdk.Coins
|
||||
depositCoins []sdk.Coin
|
||||
borrowCoins sdk.Coins
|
||||
beginBlockerTime int64
|
||||
ltvIndexCount int
|
||||
expectedBorrowerCoins sdk.Coins // additional coins (if any) the borrower address should have after successfully liquidating position
|
||||
expectedAuctions auctypes.Auctions // the auctions we should expect to find have been started
|
||||
}
|
||||
|
||||
type errArgs struct {
|
||||
expectLiquidate 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("randomaddr")))
|
||||
|
||||
// Set up auction constants
|
||||
layout := "2006-01-02T15:04:05.000Z"
|
||||
endTimeStr := "9000-01-01T00:00:00.000Z"
|
||||
endTime, _ := time.Parse(layout, endTimeStr)
|
||||
|
||||
lotReturns, _ := auctypes.NewWeightedAddresses([]sdk.AccAddress{borrower}, []sdk.Int{sdk.NewInt(100)})
|
||||
|
||||
testCases := []liqTest{
|
||||
{
|
||||
"valid: LTV index liquidates borrow",
|
||||
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))),
|
||||
depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))},
|
||||
borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))),
|
||||
beginBlockerTime: oneMonthInSeconds,
|
||||
ltvIndexCount: int(10),
|
||||
expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers
|
||||
expectedAuctions: auctypes.Auctions{
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 1,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: 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{
|
||||
expectLiquidate: true,
|
||||
contains: "",
|
||||
},
|
||||
},
|
||||
{
|
||||
"invalid: borrow not over limit, LTV index does not liquidate",
|
||||
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))),
|
||||
depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))},
|
||||
borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(7*KAVA_CF))),
|
||||
beginBlockerTime: oneMonthInSeconds,
|
||||
ltvIndexCount: int(10),
|
||||
expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(97*KAVA_CF))), // initial - deposit + borrow
|
||||
expectedAuctions: auctypes.Auctions{},
|
||||
},
|
||||
errArgs{
|
||||
expectLiquidate: false,
|
||||
contains: "",
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
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(
|
||||
true,
|
||||
types.DistributionSchedules{
|
||||
types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "usdc", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "usdt", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "dai", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "ukava", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "bnb", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "btc", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
},
|
||||
types.DelegatorDistributionSchedules{types.NewDelegatorDistributionSchedule(
|
||||
types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2025, 10, 8, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(500)), time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
time.Hour*24,
|
||||
),
|
||||
},
|
||||
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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // Keeper Reward Percent
|
||||
},
|
||||
tc.args.ltvIndexCount, // LTV counter
|
||||
), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
|
||||
|
||||
// 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: "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: []pricefeed.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{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.GetHarvestKeeper()
|
||||
suite.app = tApp
|
||||
suite.ctx = ctx
|
||||
suite.keeper = keeper
|
||||
suite.auctionKeeper = auctionKeeper
|
||||
|
||||
var err error
|
||||
|
||||
// Run begin blocker to set up state
|
||||
harvest.BeginBlocker(suite.ctx, suite.keeper)
|
||||
|
||||
// Deposit coins
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
err = suite.keeper.Deposit(suite.ctx, tc.args.borrower, coin)
|
||||
suite.Require().NoError(err)
|
||||
}
|
||||
|
||||
// Borrow coins
|
||||
err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.borrowCoins)
|
||||
suite.Require().NoError(err)
|
||||
|
||||
// Check borrow exists before liquidation
|
||||
_, foundBorrowBefore := suite.keeper.GetBorrow(suite.ctx, tc.args.borrower)
|
||||
suite.Require().True(foundBorrowBefore)
|
||||
|
||||
// Check that the user's deposits exist before liquidation
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositBefore := suite.keeper.GetDeposit(suite.ctx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().True(foundDepositBefore)
|
||||
}
|
||||
|
||||
// Liquidate the borrow by running begin blocker
|
||||
runAtTime := time.Unix(suite.ctx.BlockTime().Unix()+(tc.args.beginBlockerTime), 0)
|
||||
liqCtx := suite.ctx.WithBlockTime(runAtTime)
|
||||
harvest.BeginBlocker(liqCtx, suite.keeper)
|
||||
|
||||
if tc.errArgs.expectLiquidate {
|
||||
// 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
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().False(foundDepositAfter)
|
||||
}
|
||||
|
||||
// Check that borrower's balance contains the expected coins
|
||||
accBorrower := suite.getAccountAtCtx(tc.args.borrower, liqCtx)
|
||||
suite.Require().Equal(tc.args.expectedBorrowerCoins, accBorrower.GetCoins())
|
||||
|
||||
// Check that the expected auctions have been created
|
||||
auctions := suite.auctionKeeper.GetAllAuctions(liqCtx)
|
||||
suite.Require().True(len(auctions) > 0)
|
||||
suite.Require().Equal(tc.args.expectedAuctions, auctions)
|
||||
} else {
|
||||
// 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
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().True(foundDepositAfter)
|
||||
}
|
||||
|
||||
// Check that no auctions have been created
|
||||
auctions := suite.auctionKeeper.GetAllAuctions(liqCtx)
|
||||
suite.Require().True(len(auctions) == 0)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func (suite *KeeperTestSuite) TestFullIndexLiquidation() {
|
||||
type args struct {
|
||||
borrower sdk.AccAddress
|
||||
otherBorrowers []sdk.AccAddress
|
||||
initialModuleCoins sdk.Coins
|
||||
initialBorrowerCoins sdk.Coins
|
||||
depositCoins []sdk.Coin
|
||||
borrowCoins sdk.Coins
|
||||
otherBorrowCoins sdk.Coins
|
||||
beginBlockerTime int64
|
||||
ltvIndexCount int
|
||||
expectedBorrowerCoins sdk.Coins // additional coins (if any) the borrower address should have after successfully liquidating position
|
||||
expectedAuctions auctypes.Auctions // the auctions we should expect to find have been started
|
||||
}
|
||||
|
||||
type errArgs struct {
|
||||
expectLiquidate bool
|
||||
expectLiquidateOtherBorrowers 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("randomaddr")))
|
||||
otherBorrower1 := sdk.AccAddress(crypto.AddressHash([]byte("AotherBorrower1")))
|
||||
otherBorrower2 := sdk.AccAddress(crypto.AddressHash([]byte("BotherBorrower2")))
|
||||
otherBorrower3 := sdk.AccAddress(crypto.AddressHash([]byte("CotherBorrower3")))
|
||||
otherBorrower4 := sdk.AccAddress(crypto.AddressHash([]byte("DotherBorrower4")))
|
||||
otherBorrower5 := sdk.AccAddress(crypto.AddressHash([]byte("EotherBorrower5")))
|
||||
otherBorrower6 := sdk.AccAddress(crypto.AddressHash([]byte("FotherBorrower6")))
|
||||
otherBorrower7 := sdk.AccAddress(crypto.AddressHash([]byte("GotherBorrower7")))
|
||||
otherBorrower8 := sdk.AccAddress(crypto.AddressHash([]byte("HotherBorrower8")))
|
||||
otherBorrower9 := sdk.AccAddress(crypto.AddressHash([]byte("IotherBorrower9")))
|
||||
otherBorrower10 := sdk.AccAddress(crypto.AddressHash([]byte("JotherBorrower10")))
|
||||
|
||||
// Set up auction constants
|
||||
layout := "2006-01-02T15:04:05.000Z"
|
||||
endTimeStr := "9000-01-01T00:00:00.000Z"
|
||||
endTime, _ := time.Parse(layout, endTimeStr)
|
||||
|
||||
lotReturns, _ := auctypes.NewWeightedAddresses([]sdk.AccAddress{borrower}, []sdk.Int{sdk.NewInt(100)})
|
||||
otherBorrower1LotReturns, _ := auctypes.NewWeightedAddresses([]sdk.AccAddress{otherBorrower1}, []sdk.Int{sdk.NewInt(100)})
|
||||
otherBorrower2LotReturns, _ := auctypes.NewWeightedAddresses([]sdk.AccAddress{otherBorrower2}, []sdk.Int{sdk.NewInt(100)})
|
||||
otherBorrower3LotReturns, _ := auctypes.NewWeightedAddresses([]sdk.AccAddress{otherBorrower3}, []sdk.Int{sdk.NewInt(100)})
|
||||
|
||||
testCases := []liqTest{
|
||||
{
|
||||
"valid: LTV index only liquidates positions over LTV",
|
||||
args{
|
||||
borrower: borrower,
|
||||
otherBorrowers: []sdk.AccAddress{otherBorrower1, otherBorrower2, otherBorrower3},
|
||||
initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))},
|
||||
borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))),
|
||||
otherBorrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(7*KAVA_CF))),
|
||||
beginBlockerTime: oneMonthInSeconds,
|
||||
ltvIndexCount: int(10),
|
||||
expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers
|
||||
expectedAuctions: auctypes.Auctions{
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 1,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: nil,
|
||||
Bid: sdk.NewInt64Coin("ukava", 0),
|
||||
HasReceivedBids: false,
|
||||
EndTime: endTime,
|
||||
MaxEndTime: endTime,
|
||||
},
|
||||
CorrespondingDebt: sdk.NewInt64Coin("debt", 0),
|
||||
MaxBid: sdk.NewInt64Coin("ukava", 8013492), // TODO: why isn't this 8004766
|
||||
LotReturns: lotReturns,
|
||||
},
|
||||
},
|
||||
},
|
||||
errArgs{
|
||||
expectLiquidate: true,
|
||||
expectLiquidateOtherBorrowers: false,
|
||||
contains: "",
|
||||
},
|
||||
},
|
||||
{
|
||||
"valid: LTV liquidates multiple positions over LTV",
|
||||
args{
|
||||
borrower: borrower,
|
||||
otherBorrowers: []sdk.AccAddress{otherBorrower1, otherBorrower2, otherBorrower3},
|
||||
initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))},
|
||||
borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))),
|
||||
otherBorrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))),
|
||||
beginBlockerTime: oneMonthInSeconds,
|
||||
ltvIndexCount: int(10),
|
||||
expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers
|
||||
expectedAuctions: auctypes.Auctions{
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 1,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: nil,
|
||||
Bid: sdk.NewInt64Coin("ukava", 0),
|
||||
HasReceivedBids: false,
|
||||
EndTime: endTime,
|
||||
MaxEndTime: endTime,
|
||||
},
|
||||
CorrespondingDebt: sdk.NewInt64Coin("debt", 0),
|
||||
MaxBid: sdk.NewInt64Coin("ukava", 8014873), // TODO: Why isn't this 8013492
|
||||
LotReturns: otherBorrower3LotReturns,
|
||||
},
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 2,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: nil,
|
||||
Bid: sdk.NewInt64Coin("ukava", 0),
|
||||
HasReceivedBids: false,
|
||||
EndTime: endTime,
|
||||
MaxEndTime: endTime,
|
||||
},
|
||||
CorrespondingDebt: sdk.NewInt64Coin("debt", 0),
|
||||
MaxBid: sdk.NewInt64Coin("ukava", 8014873),
|
||||
LotReturns: otherBorrower2LotReturns,
|
||||
},
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 3,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: nil,
|
||||
Bid: sdk.NewInt64Coin("ukava", 0),
|
||||
HasReceivedBids: false,
|
||||
EndTime: endTime,
|
||||
MaxEndTime: endTime,
|
||||
},
|
||||
CorrespondingDebt: sdk.NewInt64Coin("debt", 0),
|
||||
MaxBid: sdk.NewInt64Coin("ukava", 8014873),
|
||||
LotReturns: lotReturns,
|
||||
},
|
||||
auctypes.CollateralAuction{
|
||||
BaseAuction: auctypes.BaseAuction{
|
||||
ID: 4,
|
||||
Initiator: "harvest_liquidator",
|
||||
Lot: sdk.NewInt64Coin("ukava", 10*KAVA_CF),
|
||||
Bidder: nil,
|
||||
Bid: sdk.NewInt64Coin("ukava", 0),
|
||||
HasReceivedBids: false,
|
||||
EndTime: endTime,
|
||||
MaxEndTime: endTime,
|
||||
},
|
||||
CorrespondingDebt: sdk.NewInt64Coin("debt", 0),
|
||||
MaxBid: sdk.NewInt64Coin("ukava", 8014873),
|
||||
LotReturns: otherBorrower1LotReturns,
|
||||
},
|
||||
},
|
||||
},
|
||||
errArgs{
|
||||
expectLiquidate: true,
|
||||
expectLiquidateOtherBorrowers: true,
|
||||
contains: "",
|
||||
},
|
||||
},
|
||||
{
|
||||
"valid: LTV index doesn't liquidate over limit positions outside of top 10",
|
||||
args{
|
||||
borrower: borrower,
|
||||
otherBorrowers: []sdk.AccAddress{otherBorrower1, otherBorrower2, otherBorrower3, otherBorrower4, otherBorrower5, otherBorrower6, otherBorrower7, otherBorrower8, otherBorrower9, otherBorrower10},
|
||||
initialModuleCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
initialBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(100*KAVA_CF))),
|
||||
depositCoins: []sdk.Coin{sdk.NewCoin("ukava", sdk.NewInt(10*KAVA_CF))},
|
||||
borrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(7.99*KAVA_CF))),
|
||||
otherBorrowCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(8*KAVA_CF))),
|
||||
beginBlockerTime: oneMonthInSeconds,
|
||||
ltvIndexCount: int(10),
|
||||
expectedBorrowerCoins: sdk.NewCoins(sdk.NewCoin("ukava", sdk.NewInt(98*KAVA_CF))), // initial - deposit + borrow + liquidation leftovers
|
||||
expectedAuctions: auctypes.Auctions{}, // Ignoring other borrower auctions for this test
|
||||
},
|
||||
errArgs{
|
||||
expectLiquidate: false,
|
||||
expectLiquidateOtherBorrowers: true,
|
||||
contains: "",
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
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()})
|
||||
|
||||
otherBorrowersCoins := make([]sdk.Coins, len(tc.args.otherBorrowers))
|
||||
i := 0
|
||||
for i < len(tc.args.otherBorrowers) {
|
||||
otherBorrowersCoins[i] = tc.args.initialBorrowerCoins
|
||||
i++
|
||||
}
|
||||
appCoins := append([]sdk.Coins{tc.args.initialBorrowerCoins}, otherBorrowersCoins...)
|
||||
appAddrs := append([]sdk.AccAddress{tc.args.borrower}, tc.args.otherBorrowers...)
|
||||
|
||||
// Auth module genesis state
|
||||
authGS := app.NewAuthGenState(appAddrs, appCoins)
|
||||
|
||||
// Harvest module genesis state
|
||||
harvestGS := types.NewGenesisState(types.NewParams(
|
||||
true,
|
||||
types.DistributionSchedules{
|
||||
types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
types.NewDistributionSchedule(true, "ukava", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(5000)), time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
},
|
||||
types.DelegatorDistributionSchedules{types.NewDelegatorDistributionSchedule(
|
||||
types.NewDistributionSchedule(true, "usdx", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2025, 10, 8, 14, 0, 0, 0, time.UTC), sdk.NewCoin("hard", sdk.NewInt(500)), time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Medium, 24, sdk.OneDec())}),
|
||||
time.Hour*24,
|
||||
),
|
||||
},
|
||||
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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // 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
|
||||
sdk.NewInt(100000*KAVA_CF), // Auction Size
|
||||
model, // Interest Rate Model
|
||||
reserveFactor, // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // Keeper Reward Percent
|
||||
},
|
||||
tc.args.ltvIndexCount, // LTV counter
|
||||
), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
|
||||
|
||||
// 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.GetHarvestKeeper()
|
||||
suite.app = tApp
|
||||
suite.ctx = ctx
|
||||
suite.keeper = keeper
|
||||
suite.auctionKeeper = auctionKeeper
|
||||
|
||||
var err error
|
||||
|
||||
// Run begin blocker to set up state
|
||||
harvest.BeginBlocker(suite.ctx, suite.keeper)
|
||||
|
||||
// ----------- Users get inserted into the LTV index -----------
|
||||
|
||||
// Other borrowers take out positions by depositing and borrowing coins
|
||||
for _, otherBorrower := range tc.args.otherBorrowers {
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
err = suite.keeper.Deposit(suite.ctx, otherBorrower, coin)
|
||||
suite.Require().NoError(err)
|
||||
}
|
||||
|
||||
err = suite.keeper.Borrow(suite.ctx, otherBorrower, tc.args.otherBorrowCoins)
|
||||
suite.Require().NoError(err)
|
||||
}
|
||||
|
||||
// Primary borrower deposits and borrows
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
err = suite.keeper.Deposit(suite.ctx, tc.args.borrower, coin)
|
||||
suite.Require().NoError(err)
|
||||
}
|
||||
|
||||
err = suite.keeper.Borrow(suite.ctx, tc.args.borrower, tc.args.borrowCoins)
|
||||
suite.Require().NoError(err)
|
||||
|
||||
// ----------- Check state before liquidation -----------
|
||||
// Other borrowers
|
||||
for _, otherBorrower := range tc.args.otherBorrowers {
|
||||
_, foundBorrowBefore := suite.keeper.GetBorrow(suite.ctx, otherBorrower)
|
||||
suite.Require().True(foundBorrowBefore)
|
||||
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositBefore := suite.keeper.GetDeposit(suite.ctx, otherBorrower, coin.Denom)
|
||||
suite.Require().True(foundDepositBefore)
|
||||
}
|
||||
}
|
||||
|
||||
// Primary borrower
|
||||
_, foundBorrowBefore := suite.keeper.GetBorrow(suite.ctx, tc.args.borrower)
|
||||
suite.Require().True(foundBorrowBefore)
|
||||
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositBefore := suite.keeper.GetDeposit(suite.ctx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().True(foundDepositBefore)
|
||||
}
|
||||
|
||||
// ----------- Liquidate and check state -----------
|
||||
// Liquidate the borrow by running begin blocker
|
||||
runAtTime := time.Unix(suite.ctx.BlockTime().Unix()+(tc.args.beginBlockerTime), 0)
|
||||
liqCtx := suite.ctx.WithBlockTime(runAtTime)
|
||||
harvest.BeginBlocker(liqCtx, suite.keeper)
|
||||
|
||||
if tc.errArgs.expectLiquidate {
|
||||
// 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
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().False(foundDepositAfter)
|
||||
}
|
||||
|
||||
// Check that borrower's balance contains the expected coins
|
||||
accBorrower := suite.getAccountAtCtx(tc.args.borrower, liqCtx)
|
||||
suite.Require().Equal(tc.args.expectedBorrowerCoins, accBorrower.GetCoins())
|
||||
|
||||
// Check that the expected auctions have been created
|
||||
auctions := suite.auctionKeeper.GetAllAuctions(liqCtx)
|
||||
suite.Require().True(len(auctions) > 0)
|
||||
suite.Require().Equal(tc.args.expectedAuctions, auctions)
|
||||
} else {
|
||||
// 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
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, tc.args.borrower, coin.Denom)
|
||||
suite.Require().True(foundDepositAfter)
|
||||
}
|
||||
|
||||
if !tc.errArgs.expectLiquidateOtherBorrowers {
|
||||
// Check that no auctions have been created
|
||||
auctions := suite.auctionKeeper.GetAllAuctions(liqCtx)
|
||||
suite.Require().True(len(auctions) == 0)
|
||||
}
|
||||
}
|
||||
|
||||
// Check other borrowers
|
||||
if tc.errArgs.expectLiquidateOtherBorrowers {
|
||||
for _, otherBorrower := range tc.args.otherBorrowers {
|
||||
// Check borrow does not exist after liquidation
|
||||
_, foundBorrowAfter := suite.keeper.GetBorrow(liqCtx, otherBorrower)
|
||||
suite.Require().False(foundBorrowAfter)
|
||||
|
||||
// Check deposits do not exist after liquidation
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, otherBorrower, coin.Denom)
|
||||
suite.Require().False(foundDepositAfter)
|
||||
}
|
||||
}
|
||||
|
||||
var expectedLtvIndexItemCount int
|
||||
if tc.errArgs.expectLiquidate {
|
||||
expectedLtvIndexItemCount = 0
|
||||
} else {
|
||||
expectedLtvIndexItemCount = 1
|
||||
}
|
||||
indexAddrs := suite.keeper.GetLtvIndexSlice(liqCtx, 1000) // Get all items in the index...
|
||||
suite.Require().Equal(expectedLtvIndexItemCount, len(indexAddrs))
|
||||
} else {
|
||||
for _, otherBorrower := range tc.args.otherBorrowers {
|
||||
// Check borrow does not exist after liquidation
|
||||
_, foundBorrowAfter := suite.keeper.GetBorrow(liqCtx, otherBorrower)
|
||||
suite.Require().True(foundBorrowAfter)
|
||||
|
||||
// Check deposits do not exist after liquidation
|
||||
for _, coin := range tc.args.depositCoins {
|
||||
_, foundDepositAfter := suite.keeper.GetDeposit(liqCtx, otherBorrower, coin.Denom)
|
||||
suite.Require().True(foundDepositAfter)
|
||||
}
|
||||
}
|
||||
|
||||
var expectedLtvIndexItemCount int
|
||||
if tc.errArgs.expectLiquidate {
|
||||
expectedLtvIndexItemCount = len(tc.args.otherBorrowers)
|
||||
} else {
|
||||
expectedLtvIndexItemCount = len(tc.args.otherBorrowers) + 1
|
||||
}
|
||||
indexAddrs := suite.keeper.GetLtvIndexSlice(liqCtx, tc.args.ltvIndexCount)
|
||||
suite.Require().Equal(expectedLtvIndexItemCount, len(indexAddrs))
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func (suite *KeeperTestSuite) TestKeeperLiquidation() {
|
||||
type args struct {
|
||||
borrower sdk.AccAddress
|
||||
@ -526,6 +1275,7 @@ func (suite *KeeperTestSuite) TestKeeperLiquidation() {
|
||||
reserveFactor, // Reserve Factor
|
||||
tc.args.keeperRewardPercent), // Keeper Reward Percent
|
||||
},
|
||||
0, // LTV counter
|
||||
), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
|
||||
|
||||
// Pricefeed module genesis state
|
||||
@ -634,8 +1384,9 @@ func (suite *KeeperTestSuite) TestKeeperLiquidation() {
|
||||
}
|
||||
|
||||
// Attempt to liquidate
|
||||
err = suite.keeper.AttemptKeeperLiquidation(liqCtx, tc.args.keeper, tc.args.borrower)
|
||||
liquidated, err := suite.keeper.AttemptKeeperLiquidation(liqCtx, tc.args.keeper, tc.args.borrower)
|
||||
if tc.errArgs.expectPass {
|
||||
suite.Require().True(liquidated)
|
||||
suite.Require().NoError(err)
|
||||
|
||||
// Check borrow does not exist after liquidation
|
||||
@ -660,6 +1411,7 @@ func (suite *KeeperTestSuite) TestKeeperLiquidation() {
|
||||
suite.Require().True(len(auctions) > 0)
|
||||
suite.Require().Equal(tc.args.expectedAuctions, auctions)
|
||||
} else {
|
||||
suite.Require().False(liquidated)
|
||||
suite.Require().Error(err)
|
||||
suite.Require().True(strings.Contains(err.Error(), tc.errArgs.contains))
|
||||
|
||||
|
||||
@ -10,13 +10,13 @@ import (
|
||||
// Repay borrowed funds
|
||||
func (k Keeper) Repay(ctx sdk.Context, sender sdk.AccAddress, coins sdk.Coins) error {
|
||||
// Get current stored LTV based on stored borrows/deposits
|
||||
prevLtv, shouldRemoveIndex, err := k.GetCurrentLTV(ctx, sender)
|
||||
prevLtv, shouldRemoveIndex, err := k.GetStoreLTV(ctx, sender)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Sync interest so loan is up-to-date
|
||||
k.SyncOustandingInterest(ctx, sender)
|
||||
k.SyncOutstandingInterest(ctx, sender)
|
||||
|
||||
// Validate requested repay
|
||||
err = k.ValidateRepay(ctx, sender, coins)
|
||||
@ -61,7 +61,8 @@ func (k Keeper) Repay(ctx sdk.Context, sender sdk.AccAddress, coins sdk.Coins) e
|
||||
// ValidateRepay validates a requested loan repay
|
||||
func (k Keeper) ValidateRepay(ctx sdk.Context, sender sdk.AccAddress, coins sdk.Coins) error {
|
||||
senderAcc := k.accountKeeper.GetAccount(ctx, sender)
|
||||
senderCoins := senderAcc.GetCoins()
|
||||
senderCoins := senderAcc.SpendableCoins(ctx.BlockTime())
|
||||
|
||||
for _, coin := range coins {
|
||||
if senderCoins.AmountOf(coin.Denom).LT(coin.Amount) {
|
||||
return sdkerrors.Wrapf(types.ErrInsufficientBalanceForRepay, "account can only repay up to %s%s", senderCoins.AmountOf(coin.Denom), coin.Denom)
|
||||
|
||||
@ -144,6 +144,7 @@ func (suite *KeeperTestSuite) TestRepay() {
|
||||
sdk.MustNewDecFromStr("0.05"), // Reserve Factor
|
||||
sdk.MustNewDecFromStr("0.05")), // Keeper Reward Percent
|
||||
},
|
||||
0, // LTV counter
|
||||
), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
|
||||
|
||||
// Pricefeed module genesis state
|
||||
|
||||
@ -78,6 +78,7 @@ func (suite *KeeperTestSuite) TestApplyDepositRewards() {
|
||||
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()),
|
||||
},
|
||||
0, // LTV counter
|
||||
), tc.args.previousBlockTime, types.DefaultDistributionTimes)
|
||||
tApp.InitializeFromGenesisStates(app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
|
||||
supplyKeeper := tApp.GetSupplyKeeper()
|
||||
@ -446,6 +447,7 @@ func harvestGenesisState(rewardRate sdk.Coin) app.GenesisState {
|
||||
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()),
|
||||
},
|
||||
0, // LTV counter
|
||||
),
|
||||
types.DefaultPreviousBlockTime,
|
||||
types.DefaultDistributionTimes,
|
||||
|
||||
@ -294,6 +294,7 @@ func (suite *KeeperTestSuite) TestSendTimeLockedCoinsToAccount() {
|
||||
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()),
|
||||
},
|
||||
0, // LTV counter
|
||||
), types.DefaultPreviousBlockTime, types.DefaultDistributionTimes)
|
||||
tApp.InitializeFromGenesisStates(authGS, app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
|
||||
if tc.args.accArgs.vestingAccountBefore {
|
||||
|
||||
@ -52,6 +52,7 @@ func (suite *GenesisTestSuite) TestGenesisValidation() {
|
||||
),
|
||||
},
|
||||
types.DefaultMoneyMarkets,
|
||||
types.DefaultCheckLtvIndexCount,
|
||||
),
|
||||
pbt: time.Date(2020, 10, 8, 12, 0, 0, 0, time.UTC),
|
||||
pdts: types.GenesisDistributionTimes{
|
||||
@ -75,6 +76,7 @@ func (suite *GenesisTestSuite) TestGenesisValidation() {
|
||||
),
|
||||
},
|
||||
types.DefaultMoneyMarkets,
|
||||
types.DefaultCheckLtvIndexCount,
|
||||
),
|
||||
pbt: time.Time{},
|
||||
pdts: types.GenesisDistributionTimes{
|
||||
@ -98,6 +100,7 @@ func (suite *GenesisTestSuite) TestGenesisValidation() {
|
||||
),
|
||||
},
|
||||
types.DefaultMoneyMarkets,
|
||||
types.DefaultCheckLtvIndexCount,
|
||||
),
|
||||
pbt: time.Date(2020, 10, 8, 12, 0, 0, 0, time.UTC),
|
||||
pdts: types.GenesisDistributionTimes{
|
||||
|
||||
@ -17,11 +17,13 @@ var (
|
||||
KeyLPSchedules = []byte("LPSchedules")
|
||||
KeyDelegatorSchedule = []byte("DelegatorSchedule")
|
||||
KeyMoneyMarkets = []byte("MoneyMarkets")
|
||||
KeyCheckLtvIndexCount = []byte("CheckLtvIndexCount")
|
||||
DefaultActive = true
|
||||
DefaultGovSchedules = DistributionSchedules{}
|
||||
DefaultLPSchedules = DistributionSchedules{}
|
||||
DefaultDelegatorSchedules = DelegatorDistributionSchedules{}
|
||||
DefaultMoneyMarkets = MoneyMarkets{}
|
||||
DefaultCheckLtvIndexCount = 10
|
||||
GovDenom = cdptypes.DefaultGovDenom
|
||||
)
|
||||
|
||||
@ -31,6 +33,7 @@ type Params struct {
|
||||
LiquidityProviderSchedules DistributionSchedules `json:"liquidity_provider_schedules" yaml:"liquidity_provider_schedules"`
|
||||
DelegatorDistributionSchedules DelegatorDistributionSchedules `json:"delegator_distribution_schedules" yaml:"delegator_distribution_schedules"`
|
||||
MoneyMarkets MoneyMarkets `json:"money_markets" yaml:"money_markets"`
|
||||
CheckLtvIndexCount int `json:"check_ltv_index_count" yaml:"check_ltv_index_count"`
|
||||
}
|
||||
|
||||
// DistributionSchedule distribution schedule for liquidity providers
|
||||
@ -423,18 +426,21 @@ func (irm InterestRateModel) Equal(irmCompareTo InterestRateModel) bool {
|
||||
type InterestRateModels []InterestRateModel
|
||||
|
||||
// NewParams returns a new params object
|
||||
func NewParams(active bool, lps DistributionSchedules, dds DelegatorDistributionSchedules, moneyMarkets MoneyMarkets) Params {
|
||||
func NewParams(active bool, lps DistributionSchedules, dds DelegatorDistributionSchedules,
|
||||
moneyMarkets MoneyMarkets, checkLtvIndexCount int) Params {
|
||||
return Params{
|
||||
Active: active,
|
||||
LiquidityProviderSchedules: lps,
|
||||
DelegatorDistributionSchedules: dds,
|
||||
MoneyMarkets: moneyMarkets,
|
||||
CheckLtvIndexCount: checkLtvIndexCount,
|
||||
}
|
||||
}
|
||||
|
||||
// DefaultParams returns default params for harvest module
|
||||
func DefaultParams() Params {
|
||||
return NewParams(DefaultActive, DefaultLPSchedules, DefaultDelegatorSchedules, DefaultMoneyMarkets)
|
||||
return NewParams(DefaultActive, DefaultLPSchedules, DefaultDelegatorSchedules,
|
||||
DefaultMoneyMarkets, DefaultCheckLtvIndexCount)
|
||||
}
|
||||
|
||||
// String implements fmt.Stringer
|
||||
@ -443,8 +449,10 @@ func (p Params) String() string {
|
||||
Active: %t
|
||||
Liquidity Provider Distribution Schedules %s
|
||||
Delegator Distribution Schedule %s
|
||||
Money Markets %v`,
|
||||
p.Active, p.LiquidityProviderSchedules, p.DelegatorDistributionSchedules, p.MoneyMarkets)
|
||||
Money Markets %v
|
||||
Check LTV Index Count: %v`,
|
||||
p.Active, p.LiquidityProviderSchedules, p.DelegatorDistributionSchedules,
|
||||
p.MoneyMarkets, p.CheckLtvIndexCount)
|
||||
}
|
||||
|
||||
// ParamKeyTable Key declaration for parameters
|
||||
@ -459,6 +467,7 @@ func (p *Params) ParamSetPairs() params.ParamSetPairs {
|
||||
params.NewParamSetPair(KeyLPSchedules, &p.LiquidityProviderSchedules, validateLPParams),
|
||||
params.NewParamSetPair(KeyDelegatorSchedule, &p.DelegatorDistributionSchedules, validateDelegatorParams),
|
||||
params.NewParamSetPair(KeyMoneyMarkets, &p.MoneyMarkets, validateMoneyMarketParams),
|
||||
params.NewParamSetPair(KeyCheckLtvIndexCount, &p.CheckLtvIndexCount, validateCheckLtvIndexCount),
|
||||
}
|
||||
}
|
||||
|
||||
@ -472,7 +481,15 @@ func (p Params) Validate() error {
|
||||
return err
|
||||
}
|
||||
|
||||
return validateLPParams(p.LiquidityProviderSchedules)
|
||||
if err := validateLPParams(p.LiquidityProviderSchedules); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := validateMoneyMarketParams(p.MoneyMarkets); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return validateCheckLtvIndexCount(p.CheckLtvIndexCount)
|
||||
}
|
||||
|
||||
func validateActiveParam(i interface{}) error {
|
||||
@ -517,3 +534,16 @@ func validateMoneyMarketParams(i interface{}) error {
|
||||
|
||||
return mm.Validate()
|
||||
}
|
||||
|
||||
func validateCheckLtvIndexCount(i interface{}) error {
|
||||
ltvCheckCount, ok := i.(int)
|
||||
if !ok {
|
||||
return fmt.Errorf("invalid parameter type: %T", i)
|
||||
}
|
||||
|
||||
if ltvCheckCount < 0 {
|
||||
return fmt.Errorf("CheckLtvIndexCount param must be positive, got: %d", ltvCheckCount)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -18,12 +18,12 @@ type ParamTestSuite struct {
|
||||
|
||||
func (suite *ParamTestSuite) TestParamValidation() {
|
||||
type args struct {
|
||||
lps types.DistributionSchedules
|
||||
gds types.DistributionSchedules
|
||||
dds types.DelegatorDistributionSchedules
|
||||
mms types.MoneyMarkets
|
||||
kpr sdk.Dec
|
||||
active bool
|
||||
lps types.DistributionSchedules
|
||||
gds types.DistributionSchedules
|
||||
dds types.DelegatorDistributionSchedules
|
||||
mms types.MoneyMarkets
|
||||
ltvCounter int
|
||||
active bool
|
||||
}
|
||||
testCases := []struct {
|
||||
name string
|
||||
@ -52,9 +52,9 @@ func (suite *ParamTestSuite) TestParamValidation() {
|
||||
time.Hour*24,
|
||||
),
|
||||
},
|
||||
mms: types.DefaultMoneyMarkets,
|
||||
kpr: sdk.MustNewDecFromStr("0.05"),
|
||||
active: true,
|
||||
mms: types.DefaultMoneyMarkets,
|
||||
ltvCounter: 10,
|
||||
active: true,
|
||||
},
|
||||
expectPass: true,
|
||||
expectedErr: "",
|
||||
@ -70,9 +70,9 @@ func (suite *ParamTestSuite) TestParamValidation() {
|
||||
time.Hour*24,
|
||||
),
|
||||
},
|
||||
mms: types.DefaultMoneyMarkets,
|
||||
kpr: sdk.MustNewDecFromStr("0.05"),
|
||||
active: true,
|
||||
mms: types.DefaultMoneyMarkets,
|
||||
ltvCounter: 10,
|
||||
active: true,
|
||||
},
|
||||
expectPass: false,
|
||||
expectedErr: "reward denom should be hard",
|
||||
@ -80,7 +80,7 @@ func (suite *ParamTestSuite) TestParamValidation() {
|
||||
}
|
||||
for _, tc := range testCases {
|
||||
suite.Run(tc.name, func() {
|
||||
params := types.NewParams(tc.args.active, tc.args.lps, tc.args.dds, tc.args.mms)
|
||||
params := types.NewParams(tc.args.active, tc.args.lps, tc.args.dds, tc.args.mms, tc.args.ltvCounter)
|
||||
err := params.Validate()
|
||||
if tc.expectPass {
|
||||
suite.NoError(err)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user