0g-chain/x/harvest/keeper/keeper_test.go
Denali Marsh 83a5f51c11
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
2020-12-18 02:12:48 +01:00

313 lines
11 KiB
Go

package keeper_test
import (
"fmt"
"sort"
"strconv"
"testing"
"github.com/stretchr/testify/suite"
sdk "github.com/cosmos/cosmos-sdk/types"
authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
supplyexported "github.com/cosmos/cosmos-sdk/x/supply/exported"
abci "github.com/tendermint/tendermint/abci/types"
tmtime "github.com/tendermint/tendermint/types/time"
"github.com/kava-labs/kava/app"
aucKeeper "github.com/kava-labs/kava/x/auction/keeper"
"github.com/kava-labs/kava/x/harvest/keeper"
"github.com/kava-labs/kava/x/harvest/types"
)
// Test suite used for all keeper tests
type KeeperTestSuite struct {
suite.Suite
keeper keeper.Keeper
auctionKeeper aucKeeper.Keeper
app app.TestApp
ctx sdk.Context
addrs []sdk.AccAddress
}
// The default state used by each test
func (suite *KeeperTestSuite) SetupTest() {
config := sdk.GetConfig()
app.SetBech32AddressPrefixes(config)
tApp := app.NewTestApp()
ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
tApp.InitializeFromGenesisStates()
_, addrs := app.GeneratePrivKeyAddressPairs(1)
keeper := tApp.GetHarvestKeeper()
suite.app = tApp
suite.ctx = ctx
suite.keeper = keeper
suite.addrs = addrs
}
func (suite *KeeperTestSuite) TestGetSetPreviousBlockTime() {
now := tmtime.Now()
_, f := suite.keeper.GetPreviousBlockTime(suite.ctx)
suite.Require().False(f)
suite.NotPanics(func() { suite.keeper.SetPreviousBlockTime(suite.ctx, now) })
pbt, f := suite.keeper.GetPreviousBlockTime(suite.ctx)
suite.True(f)
suite.Equal(now, pbt)
}
func (suite *KeeperTestSuite) TestGetSetPreviousDelegatorDistribution() {
now := tmtime.Now()
_, f := suite.keeper.GetPreviousDelegatorDistribution(suite.ctx, suite.keeper.BondDenom(suite.ctx))
suite.Require().False(f)
suite.NotPanics(func() {
suite.keeper.SetPreviousDelegationDistribution(suite.ctx, now, suite.keeper.BondDenom(suite.ctx))
})
pdt, f := suite.keeper.GetPreviousDelegatorDistribution(suite.ctx, suite.keeper.BondDenom(suite.ctx))
suite.True(f)
suite.Equal(now, pdt)
}
func (suite *KeeperTestSuite) TestGetSetDeleteDeposit() {
dep := types.NewDeposit(sdk.AccAddress("test"), sdk.NewCoin("bnb", sdk.NewInt(100)))
_, f := suite.keeper.GetDeposit(suite.ctx, sdk.AccAddress("test"), "bnb")
suite.Require().False(f)
suite.keeper.SetDeposit(suite.ctx, dep)
testDeposit, f := suite.keeper.GetDeposit(suite.ctx, sdk.AccAddress("test"), "bnb")
suite.Require().True(f)
suite.Require().Equal(dep, testDeposit)
suite.Require().NotPanics(func() { suite.keeper.DeleteDeposit(suite.ctx, dep) })
_, f = suite.keeper.GetDeposit(suite.ctx, sdk.AccAddress("test"), "bnb")
suite.Require().False(f)
}
func (suite *KeeperTestSuite) TestIterateDeposits() {
for i := 0; i < 5; i++ {
dep := types.NewDeposit(sdk.AccAddress("test"+fmt.Sprint(i)), sdk.NewCoin("bnb", sdk.NewInt(100)))
suite.Require().NotPanics(func() { suite.keeper.SetDeposit(suite.ctx, dep) })
}
var deposits []types.Deposit
suite.keeper.IterateDeposits(suite.ctx, func(d types.Deposit) bool {
deposits = append(deposits, d)
return false
})
suite.Require().Equal(5, len(deposits))
}
func (suite *KeeperTestSuite) TestIterateDepositsByDenom() {
for i := 0; i < 5; i++ {
depA := types.NewDeposit(sdk.AccAddress("test"+fmt.Sprint(i)), sdk.NewCoin("bnb", sdk.NewInt(100)))
suite.Require().NotPanics(func() { suite.keeper.SetDeposit(suite.ctx, depA) })
depB := types.NewDeposit(sdk.AccAddress("test"+fmt.Sprint(i)), sdk.NewCoin("bnb", sdk.NewInt(100)))
suite.Require().NotPanics(func() { suite.keeper.SetDeposit(suite.ctx, depB) })
depC := types.NewDeposit(sdk.AccAddress("test"+fmt.Sprint(i)), sdk.NewCoin("btcb", sdk.NewInt(100)))
suite.Require().NotPanics(func() { suite.keeper.SetDeposit(suite.ctx, depC) })
}
// Check BNB deposits
var bnbDeposits []types.Deposit
suite.keeper.IterateDepositsByDenom(suite.ctx, "bnb", func(d types.Deposit) bool {
bnbDeposits = append(bnbDeposits, d)
return false
})
suite.Require().Equal(5, len(bnbDeposits))
// Check BTCB deposits
var btcbDeposits []types.Deposit
suite.keeper.IterateDepositsByDenom(suite.ctx, "btcb", func(d types.Deposit) bool {
btcbDeposits = append(btcbDeposits, d)
return false
})
suite.Require().Equal(5, len(btcbDeposits))
// Fetch all deposits
var deposits []types.Deposit
suite.keeper.IterateDeposits(suite.ctx, func(d types.Deposit) bool {
deposits = append(deposits, d)
return false
})
suite.Require().Equal(len(bnbDeposits)+len(btcbDeposits), len(deposits))
}
func (suite *KeeperTestSuite) TestGetSetDeleteClaim() {
claim := types.NewClaim(sdk.AccAddress("test"), "bnb", sdk.NewCoin("hard", sdk.NewInt(100)), "lp")
_, f := suite.keeper.GetClaim(suite.ctx, sdk.AccAddress("test"), "bnb", "lp")
suite.Require().False(f)
suite.Require().NotPanics(func() { suite.keeper.SetClaim(suite.ctx, claim) })
testClaim, f := suite.keeper.GetClaim(suite.ctx, sdk.AccAddress("test"), "bnb", "lp")
suite.Require().True(f)
suite.Require().Equal(claim, testClaim)
suite.Require().NotPanics(func() { suite.keeper.DeleteClaim(suite.ctx, claim) })
_, f = suite.keeper.GetClaim(suite.ctx, sdk.AccAddress("test"), "bnb", "lp")
suite.Require().False(f)
}
func (suite *KeeperTestSuite) TestGetSetDeleteInterestRateModel() {
denom := "test"
model := types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10"))
borrowLimit := types.NewBorrowLimit(false, sdk.MustNewDecFromStr("0.2"), sdk.MustNewDecFromStr("0.5"))
moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(1000000000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
_, f := suite.keeper.GetMoneyMarket(suite.ctx, denom)
suite.Require().False(f)
suite.keeper.SetMoneyMarket(suite.ctx, denom, moneyMarket)
testMoneyMarket, f := suite.keeper.GetMoneyMarket(suite.ctx, denom)
suite.Require().True(f)
suite.Require().Equal(moneyMarket, testMoneyMarket)
suite.Require().NotPanics(func() { suite.keeper.DeleteMoneyMarket(suite.ctx, denom) })
_, f = suite.keeper.GetMoneyMarket(suite.ctx, denom)
suite.Require().False(f)
}
func (suite *KeeperTestSuite) TestIterateInterestRateModels() {
testDenom := "test"
var setMMs types.MoneyMarkets
var setDenoms []string
for i := 0; i < 5; i++ {
// Initialize a new money market
denom := testDenom + strconv.Itoa(i)
model := types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10"))
borrowLimit := types.NewBorrowLimit(false, sdk.MustNewDecFromStr("0.2"), sdk.MustNewDecFromStr("0.5"))
moneyMarket := types.NewMoneyMarket(denom, borrowLimit, denom+":usd", sdk.NewInt(1000000), sdk.NewInt(1000000000), model, sdk.MustNewDecFromStr("0.05"), sdk.ZeroDec())
// Store money market in the module's store
suite.Require().NotPanics(func() { suite.keeper.SetMoneyMarket(suite.ctx, denom, moneyMarket) })
// Save the denom and model
setDenoms = append(setDenoms, denom)
setMMs = append(setMMs, moneyMarket)
}
var seenMMs types.MoneyMarkets
var seenDenoms []string
suite.keeper.IterateMoneyMarkets(suite.ctx, func(denom string, i types.MoneyMarket) bool {
seenDenoms = append(seenDenoms, denom)
seenMMs = append(seenMMs, i)
return false
})
suite.Require().Equal(setMMs, seenMMs)
suite.Require().Equal(setDenoms, seenDenoms)
}
func (suite *KeeperTestSuite) TestSetDeleteLtvIndex() {
// LTV index should have 0 items
firstAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
suite.Require().Equal(0, len(firstAddrs))
// Add an item to the LTV index
addr := sdk.AccAddress("test")
ltv := sdk.MustNewDecFromStr("1.1")
suite.Require().NotPanics(func() { suite.keeper.InsertIntoLtvIndex(suite.ctx, ltv, addr) })
// LTV index should have 1 item
secondAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
suite.Require().Equal(1, len(secondAddrs))
// Attempt to remove invalid item from LTV index
fakeLtv := sdk.MustNewDecFromStr("1.2")
suite.Require().NotPanics(func() { suite.keeper.RemoveFromLtvIndex(suite.ctx, fakeLtv, addr) })
// LTV index should still have 1 item
thirdAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
suite.Require().Equal(1, len(thirdAddrs))
// Attempt to remove valid item from LTV index
suite.Require().NotPanics(func() { suite.keeper.RemoveFromLtvIndex(suite.ctx, ltv, addr) })
// LTV index should still have 0 items
fourthAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
suite.Require().Equal(0, len(fourthAddrs))
}
func (suite *KeeperTestSuite) TestIterateLtvIndex() {
var setAddrs []sdk.AccAddress
for i := 1; i <= 20; i++ {
addr := sdk.AccAddress("test" + fmt.Sprint(i))
incrementalDec := sdk.NewDec(int64(i)).Quo(sdk.NewDec(10))
ltv := sdk.OneDec().Add(incrementalDec)
// Set the ltv-address pair in the store
suite.Require().NotPanics(func() { suite.keeper.InsertIntoLtvIndex(suite.ctx, ltv, addr) })
setAddrs = append(setAddrs, addr)
}
// Only the first 10 addresses should be returned
sliceAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
suite.Require().Equal(addressSort(setAddrs[10:20]), addressSort(sliceAddrs))
// Insert an additional item into the LTV index that should be returned in the first 10 elements
addr := sdk.AccAddress("test" + fmt.Sprint(21))
ltv := sdk.OneDec().Add(sdk.MustNewDecFromStr("15").Quo(sdk.NewDec(10)))
suite.Require().NotPanics(func() { suite.keeper.InsertIntoLtvIndex(suite.ctx, ltv, addr) })
// Fetch the updated LTV index
updatedSliceAddrs := suite.keeper.GetLtvIndexSlice(suite.ctx, 10)
sawAddr := false
for _, updatedSliceAddr := range updatedSliceAddrs {
if updatedSliceAddr.Equals(addr) {
sawAddr = true
}
}
suite.Require().Equal(true, sawAddr)
}
func (suite *KeeperTestSuite) getAccount(addr sdk.AccAddress) authexported.Account {
ak := suite.app.GetAccountKeeper()
return ak.GetAccount(suite.ctx, addr)
}
func (suite *KeeperTestSuite) getAccountAtCtx(addr sdk.AccAddress, ctx sdk.Context) authexported.Account {
ak := suite.app.GetAccountKeeper()
return ak.GetAccount(ctx, addr)
}
func (suite *KeeperTestSuite) getModuleAccount(name string) supplyexported.ModuleAccountI {
sk := suite.app.GetSupplyKeeper()
return sk.GetModuleAccount(suite.ctx, name)
}
func (suite *KeeperTestSuite) getModuleAccountAtCtx(name string, ctx sdk.Context) supplyexported.ModuleAccountI {
sk := suite.app.GetSupplyKeeper()
return sk.GetModuleAccount(ctx, name)
}
func addressSort(addrs []sdk.AccAddress) (sortedAddrs []sdk.AccAddress) {
addrStrs := []string{}
for _, addr := range addrs {
addrStrs = append(addrStrs, addr.String())
}
sort.Strings(addrStrs)
for _, addrStr := range addrStrs {
addr, _ := sdk.AccAddressFromBech32(addrStr)
sortedAddrs = append(sortedAddrs, addr)
}
return sortedAddrs
}
func TestKeeperTestSuite(t *testing.T) {
suite.Run(t, new(KeeperTestSuite))
}