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0g-chain/x/incentive/keeper/rewards_borrow_test.go

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package keeper_test
import (
"testing"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
proposaltypes "github.com/cosmos/cosmos-sdk/x/params/types/proposal"
"github.com/stretchr/testify/suite"
abci "github.com/tendermint/tendermint/abci/types"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/x/committee"
committeekeeper "github.com/kava-labs/kava/x/committee/keeper"
committeetypes "github.com/kava-labs/kava/x/committee/types"
"github.com/kava-labs/kava/x/hard"
hardkeeper "github.com/kava-labs/kava/x/hard/keeper"
"github.com/kava-labs/kava/x/incentive/keeper"
"github.com/kava-labs/kava/x/incentive/testutil"
"github.com/kava-labs/kava/x/incentive/types"
kavadisttypes "github.com/kava-labs/kava/x/kavadist/types"
)
type BorrowIntegrationTests struct {
testutil.IntegrationTester
genesisTime time.Time
addrs []sdk.AccAddress
}
func TestBorrowIntegration(t *testing.T) {
suite.Run(t, new(BorrowIntegrationTests))
}
// SetupTest is run automatically before each suite test
func (suite *BorrowIntegrationTests) SetupTest() {
_, suite.addrs = app.GeneratePrivKeyAddressPairs(5)
suite.genesisTime = time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
}
func (suite *BorrowIntegrationTests) TestSingleUserAccumulatesRewardsAfterSyncing() {
userA := suite.addrs[0]
authBulder := app.NewAuthBankGenesisBuilder().
WithSimpleModuleAccount(kavadisttypes.ModuleName, cs(c("hard", 1e18))). // Fill kavadist with enough coins to pay out any reward
WithSimpleAccount(userA, cs(c("bnb", 1e12))) // give the user some coins
incentBuilder := testutil.NewIncentiveGenesisBuilder().
WithGenesisTime(suite.genesisTime).
WithMultipliers(types.MultipliersPerDenoms{{
Denom: "hard",
Multipliers: types.Multipliers{types.NewMultiplier("large", 12, d("1.0"))}, // keep payout at 1.0 to make maths easier
}}).
WithSimpleBorrowRewardPeriod("bnb", cs(c("hard", 1e6))) // only borrow rewards
suite.SetApp()
suite.StartChain(
suite.genesisTime,
NewPricefeedGenStateMultiFromTime(suite.App.AppCodec(), suite.genesisTime),
NewHardGenStateMulti(suite.genesisTime).BuildMarshalled(suite.App.AppCodec()),
authBulder.BuildMarshalled(suite.App.AppCodec()),
incentBuilder.BuildMarshalled(suite.App.AppCodec()),
)
// Create a borrow (need to first deposit to allow it)
suite.NoError(suite.DeliverHardMsgDeposit(userA, cs(c("bnb", 1e11))))
suite.NoError(suite.DeliverHardMsgBorrow(userA, cs(c("bnb", 1e10))))
// Let time pass to accumulate interest on the borrow
// Use one long block instead of many to reduce any rounding errors, and speed up tests.
suite.NextBlockAfter(1e6 * time.Second) // about 12 days
// User borrows and repays just to sync their borrow.
suite.NoError(suite.DeliverHardMsgRepay(userA, cs(c("bnb", 1))))
suite.NoError(suite.DeliverHardMsgBorrow(userA, cs(c("bnb", 1))))
// Accumulate more rewards.
// The user still has the same percentage of all borrows (100%) so their rewards should be the same as in the previous block.
suite.NextBlockAfter(1e6 * time.Second) // about 12 days
msg := types.NewMsgClaimHardReward(userA.String(), types.Selections{
types.NewSelection("hard", "large"),
})
// User claims all their rewards
suite.NoError(suite.DeliverIncentiveMsg(&msg))
// The users has always had 100% of borrows, so they should receive all rewards for the previous two blocks.
// Total rewards for each block is block duration * rewards per second
accuracy := 1e-10 // using a very high accuracy to flag future small calculation changes
suite.BalanceInEpsilon(userA, cs(c("bnb", 1e12-1e11+1e10), c("hard", 2*1e6*1e6)), accuracy)
}
// Test suite used for all keeper tests
type BorrowRewardsTestSuite struct {
suite.Suite
keeper keeper.Keeper
hardKeeper hardkeeper.Keeper
committeeKeeper committeekeeper.Keeper
app app.TestApp
ctx sdk.Context
genesisTime time.Time
addrs []sdk.AccAddress
}
// SetupTest is run automatically before each suite test
func (suite *BorrowRewardsTestSuite) SetupTest() {
config := sdk.GetConfig()
app.SetBech32AddressPrefixes(config)
_, suite.addrs = app.GeneratePrivKeyAddressPairs(5)
suite.genesisTime = time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
}
func (suite *BorrowRewardsTestSuite) SetupApp() {
suite.app = app.NewTestApp()
suite.keeper = suite.app.GetIncentiveKeeper()
suite.hardKeeper = suite.app.GetHardKeeper()
suite.committeeKeeper = suite.app.GetCommitteeKeeper()
suite.ctx = suite.app.NewContext(true, tmproto.Header{Height: 1, Time: suite.genesisTime})
}
func (suite *BorrowRewardsTestSuite) SetupWithGenState(authBuilder *app.AuthBankGenesisBuilder, incentBuilder testutil.IncentiveGenesisBuilder, hardBuilder testutil.HardGenesisBuilder) {
suite.SetupApp()
suite.app.InitializeFromGenesisStatesWithTime(
suite.genesisTime,
authBuilder.BuildMarshalled(suite.app.AppCodec()),
NewPricefeedGenStateMultiFromTime(suite.app.AppCodec(), suite.genesisTime),
hardBuilder.BuildMarshalled(suite.app.AppCodec()),
NewCommitteeGenesisState(suite.app.AppCodec(), 1, suite.addrs[:2]...),
incentBuilder.BuildMarshalled(suite.app.AppCodec()),
)
}
func (suite *BorrowRewardsTestSuite) TestAccumulateHardBorrowRewards() {
type args struct {
borrow sdk.Coin
rewardsPerSecond sdk.Coins
timeElapsed int
expectedRewardIndexes types.RewardIndexes
}
type test struct {
name string
args args
}
testCases := []test{
{
"single reward denom: 7 seconds",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354)),
timeElapsed: 7,
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.000000856478000001"))},
},
},
{
"single reward denom: 1 day",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354)),
timeElapsed: 86400,
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.010571385600010177"))},
},
},
{
"single reward denom: 0 seconds",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354)),
timeElapsed: 0,
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.0"))},
},
},
{
"multiple reward denoms: 7 seconds",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
timeElapsed: 7,
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.000000856478000001")),
types.NewRewardIndex("ukava", d("0.000000856478000001")),
},
},
},
{
"multiple reward denoms: 1 day",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
timeElapsed: 86400,
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.010571385600010177")),
types.NewRewardIndex("ukava", d("0.010571385600010177")),
},
},
},
{
"multiple reward denoms: 0 seconds",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
timeElapsed: 0,
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
types.NewRewardIndex("ukava", d("0.0")),
},
},
},
{
"multiple reward denoms with different rewards per second: 1 day",
args{
borrow: c("bnb", 1000000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 555555)),
timeElapsed: 86400,
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.010571385600010177")),
types.NewRewardIndex("ukava", d("0.047999952000046210")),
},
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
userAddr := suite.addrs[3]
authBuilder := app.NewAuthBankGenesisBuilder().WithSimpleAccount(
userAddr,
cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)),
)
incentBuilder := testutil.NewIncentiveGenesisBuilder().
WithGenesisTime(suite.genesisTime).
WithSimpleBorrowRewardPeriod(tc.args.borrow.Denom, tc.args.rewardsPerSecond)
suite.SetupWithGenState(authBuilder, incentBuilder, NewHardGenStateMulti(suite.genesisTime))
// User deposits and borrows to increase total borrowed amount
err := suite.hardKeeper.Deposit(suite.ctx, userAddr, sdk.NewCoins(sdk.NewCoin(tc.args.borrow.Denom, tc.args.borrow.Amount.Mul(sdk.NewInt(2)))))
suite.Require().NoError(err)
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, sdk.NewCoins(tc.args.borrow))
suite.Require().NoError(err)
// Set up chain context at future time
runAtTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * tc.args.timeElapsed))
runCtx := suite.ctx.WithBlockTime(runAtTime)
// Run Hard begin blocker in order to update the denom's index factor
hard.BeginBlocker(runCtx, suite.hardKeeper)
// Accumulate hard borrow rewards for the deposit denom
multiRewardPeriod, found := suite.keeper.GetHardBorrowRewardPeriods(runCtx, tc.args.borrow.Denom)
suite.Require().True(found)
suite.keeper.AccumulateHardBorrowRewards(runCtx, multiRewardPeriod)
// Check that each expected reward index matches the current stored reward index for the denom
globalRewardIndexes, found := suite.keeper.GetHardBorrowRewardIndexes(runCtx, tc.args.borrow.Denom)
suite.Require().True(found)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
globalRewardIndex, found := globalRewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, globalRewardIndex)
}
})
}
}
func (suite *BorrowRewardsTestSuite) TestInitializeHardBorrowRewards() {
type args struct {
moneyMarketRewardDenoms map[string]sdk.Coins
deposit sdk.Coins
borrow sdk.Coins
expectedClaimBorrowRewardIndexes types.MultiRewardIndexes
}
type test struct {
name string
args args
}
standardMoneyMarketRewardDenoms := map[string]sdk.Coins{
"bnb": cs(c("hard", 1)),
"btcb": cs(c("hard", 1), c("ukava", 1)),
}
testCases := []test{
{
"single deposit denom, single reward denom",
args{
moneyMarketRewardDenoms: standardMoneyMarketRewardDenoms,
deposit: cs(c("bnb", 1000000000000)),
borrow: cs(c("bnb", 100000000000)),
expectedClaimBorrowRewardIndexes: types.MultiRewardIndexes{
types.NewMultiRewardIndex(
"bnb",
types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
},
),
},
},
},
{
"single deposit denom, multiple reward denoms",
args{
moneyMarketRewardDenoms: standardMoneyMarketRewardDenoms,
deposit: cs(c("btcb", 1000000000000)),
borrow: cs(c("btcb", 100000000000)),
expectedClaimBorrowRewardIndexes: types.MultiRewardIndexes{
types.NewMultiRewardIndex(
"btcb",
types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
types.NewRewardIndex("ukava", d("0.0")),
},
),
},
},
},
{
"single deposit denom, no reward denoms",
args{
moneyMarketRewardDenoms: standardMoneyMarketRewardDenoms,
deposit: cs(c("xrp", 1000000000000)),
borrow: cs(c("xrp", 100000000000)),
expectedClaimBorrowRewardIndexes: types.MultiRewardIndexes{
types.NewMultiRewardIndex(
"xrp",
nil,
),
},
},
},
{
"multiple deposit denoms, multiple overlapping reward denoms",
args{
moneyMarketRewardDenoms: standardMoneyMarketRewardDenoms,
deposit: cs(c("bnb", 1000000000000), c("btcb", 1000000000000)),
borrow: cs(c("bnb", 100000000000), c("btcb", 100000000000)),
expectedClaimBorrowRewardIndexes: types.MultiRewardIndexes{
types.NewMultiRewardIndex(
"bnb",
types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
},
),
types.NewMultiRewardIndex(
"btcb",
types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
types.NewRewardIndex("ukava", d("0.0")),
},
),
},
},
},
{
"multiple deposit denoms, correct discrete reward denoms",
args{
moneyMarketRewardDenoms: standardMoneyMarketRewardDenoms,
deposit: cs(c("bnb", 1000000000000), c("xrp", 1000000000000)),
borrow: cs(c("bnb", 100000000000), c("xrp", 100000000000)),
expectedClaimBorrowRewardIndexes: types.MultiRewardIndexes{
types.NewMultiRewardIndex(
"bnb",
types.RewardIndexes{
types.NewRewardIndex("hard", d("0.0")),
},
),
types.NewMultiRewardIndex(
"xrp",
nil,
),
},
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
userAddr := suite.addrs[3]
authBuilder := app.NewAuthBankGenesisBuilder().WithSimpleAccount(
userAddr,
cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)),
)
incentBuilder := testutil.NewIncentiveGenesisBuilder().WithGenesisTime(suite.genesisTime)
for moneyMarketDenom, rewardsPerSecond := range tc.args.moneyMarketRewardDenoms {
incentBuilder = incentBuilder.WithSimpleBorrowRewardPeriod(moneyMarketDenom, rewardsPerSecond)
}
suite.SetupWithGenState(authBuilder, incentBuilder, NewHardGenStateMulti(suite.genesisTime))
// User deposits
err := suite.hardKeeper.Deposit(suite.ctx, userAddr, tc.args.deposit)
suite.Require().NoError(err)
// User borrows
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, tc.args.borrow)
suite.Require().NoError(err)
claim, foundClaim := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(foundClaim)
suite.Require().Equal(tc.args.expectedClaimBorrowRewardIndexes, claim.BorrowRewardIndexes)
})
}
}
func (suite *BorrowRewardsTestSuite) TestSynchronizeHardBorrowReward() {
type args struct {
incentiveBorrowRewardDenom string
borrow sdk.Coin
rewardsPerSecond sdk.Coins
blockTimes []int
expectedRewardIndexes types.RewardIndexes
expectedRewards sdk.Coins
updateRewardsViaCommmittee bool
updatedBaseDenom string
updatedRewardsPerSecond sdk.Coins
updatedExpectedRewardIndexes types.RewardIndexes
updatedExpectedRewards sdk.Coins
updatedTimeDuration int
}
type test struct {
name string
args args
}
testCases := []test{
{
"single reward denom: 10 blocks",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.001223540000173228"))},
expectedRewards: cs(c("hard", 12235400)),
updateRewardsViaCommmittee: false,
},
},
{
"single reward denom: 10 blocks - long block time",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("10.571385603126235340"))},
expectedRewards: cs(c("hard", 105713856031)),
},
},
{
"single reward denom: user reward index updated when reward is zero",
args{
incentiveBorrowRewardDenom: "ukava",
borrow: c("ukava", 1), // borrow a tiny amount so that rewards round to zero
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.122354003908172328"))},
expectedRewards: cs(),
updateRewardsViaCommmittee: false,
},
},
{
"multiple reward denoms: 10 blocks",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.001223540000173228")),
types.NewRewardIndex("ukava", d("0.001223540000173228")),
},
expectedRewards: cs(c("hard", 12235400), c("ukava", 12235400)),
},
},
{
"multiple reward denoms: 10 blocks - long block time",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
blockTimes: []int{86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400},
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("10.571385603126235340")),
types.NewRewardIndex("ukava", d("10.571385603126235340")),
},
expectedRewards: cs(c("hard", 105713856031), c("ukava", 105713856031)),
},
},
{
"multiple reward denoms with different rewards per second: 10 blocks",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 555555)),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.001223540000173228")),
types.NewRewardIndex("ukava", d("0.005555550000786558")),
},
expectedRewards: cs(c("hard", 12235400), c("ukava", 55555500)),
},
},
{
"denom is in incentive's hard borrow reward params and has rewards; add new reward type",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{86400},
expectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("1.057138560060101160")),
},
expectedRewards: cs(c("hard", 10571385601)),
updateRewardsViaCommmittee: true,
updatedBaseDenom: "bnb",
updatedRewardsPerSecond: cs(c("hard", 122354), c("ukava", 100000)),
updatedExpectedRewards: cs(c("hard", 21142771202), c("ukava", 8640000000)),
updatedExpectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("2.114277120120202320")),
types.NewRewardIndex("ukava", d("0.864000000049120715")),
},
updatedTimeDuration: 86400,
},
},
{
"denom is in hard's money market params but not in incentive's hard supply reward params; add reward",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("zzz", 10000000000),
rewardsPerSecond: nil,
blockTimes: []int{100},
expectedRewardIndexes: types.RewardIndexes{},
expectedRewards: sdk.Coins{},
updateRewardsViaCommmittee: true,
updatedBaseDenom: "zzz",
updatedRewardsPerSecond: cs(c("hard", 100000)),
updatedExpectedRewards: cs(c("hard", 8640000000)),
updatedExpectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.864000000049803065")),
},
updatedTimeDuration: 86400,
},
},
{
"denom is in hard's money market params but not in incentive's hard supply reward params; add multiple reward types",
args{
incentiveBorrowRewardDenom: "bnb",
borrow: c("zzz", 10000000000),
rewardsPerSecond: nil,
blockTimes: []int{100},
expectedRewardIndexes: types.RewardIndexes{},
expectedRewards: sdk.Coins{},
updateRewardsViaCommmittee: true,
updatedBaseDenom: "zzz",
updatedRewardsPerSecond: cs(c("hard", 100000), c("ukava", 100500), c("swap", 500)),
updatedExpectedRewards: cs(c("hard", 8640000000), c("ukava", 8683200001), c("swap", 43200000)),
updatedExpectedRewardIndexes: types.RewardIndexes{
types.NewRewardIndex("hard", d("0.864000000049803065")),
types.NewRewardIndex("ukava", d("0.868320000050052081")),
types.NewRewardIndex("swap", d("0.004320000000249015")),
},
updatedTimeDuration: 86400,
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
userAddr := suite.addrs[3]
authBuilder := app.NewAuthBankGenesisBuilder().
WithSimpleAccount(suite.addrs[2], cs(c("ukava", 1e9))).
WithSimpleAccount(userAddr, cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)))
incentBuilder := testutil.NewIncentiveGenesisBuilder().WithGenesisTime(suite.genesisTime)
if tc.args.rewardsPerSecond != nil {
incentBuilder = incentBuilder.WithSimpleBorrowRewardPeriod(tc.args.incentiveBorrowRewardDenom, tc.args.rewardsPerSecond)
}
// Set the minimum borrow to 0 to allow testing small borrows
hardBuilder := NewHardGenStateMulti(suite.genesisTime).WithMinBorrow(sdk.ZeroDec())
suite.SetupWithGenState(authBuilder, incentBuilder, hardBuilder)
// Borrow a fixed amount from another user to dilute primary user's rewards per second.
suite.Require().NoError(
suite.hardKeeper.Deposit(suite.ctx, suite.addrs[2], cs(c("ukava", 200_000_000))),
)
suite.Require().NoError(
suite.hardKeeper.Borrow(suite.ctx, suite.addrs[2], cs(c("ukava", 100_000_000))),
)
// User deposits and borrows to increase total borrowed amount
err := suite.hardKeeper.Deposit(suite.ctx, userAddr, sdk.NewCoins(sdk.NewCoin(tc.args.borrow.Denom, tc.args.borrow.Amount.Mul(sdk.NewInt(2)))))
suite.Require().NoError(err)
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, sdk.NewCoins(tc.args.borrow))
suite.Require().NoError(err)
// Check that Hard hooks initialized a HardLiquidityProviderClaim
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
multiRewardIndex, _ := claim.BorrowRewardIndexes.GetRewardIndex(tc.args.borrow.Denom)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
currRewardIndex, found := multiRewardIndex.RewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(sdk.ZeroDec(), currRewardIndex.RewardFactor)
}
// Run accumulator at several intervals
var timeElapsed int
previousBlockTime := suite.ctx.BlockTime()
for _, t := range tc.args.blockTimes {
timeElapsed += t
updatedBlockTime := previousBlockTime.Add(time.Duration(int(time.Second) * t))
previousBlockTime = updatedBlockTime
blockCtx := suite.ctx.WithBlockTime(updatedBlockTime)
// Run Hard begin blocker for each block ctx to update denom's interest factor
hard.BeginBlocker(blockCtx, suite.hardKeeper)
// Accumulate hard borrow-side rewards
multiRewardPeriod, found := suite.keeper.GetHardBorrowRewardPeriods(blockCtx, tc.args.borrow.Denom)
if found {
suite.keeper.AccumulateHardBorrowRewards(blockCtx, multiRewardPeriod)
}
}
updatedBlockTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * timeElapsed))
suite.ctx = suite.ctx.WithBlockTime(updatedBlockTime)
// After we've accumulated, run synchronize
borrow, found := suite.hardKeeper.GetBorrow(suite.ctx, userAddr)
suite.Require().True(found)
suite.Require().NotPanics(func() {
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
})
// Check that the global reward index's reward factor and user's claim have been updated as expected
claim, found = suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
globalRewardIndexes, foundGlobalRewardIndexes := suite.keeper.GetHardBorrowRewardIndexes(suite.ctx, tc.args.borrow.Denom)
if len(tc.args.rewardsPerSecond) > 0 {
suite.Require().True(foundGlobalRewardIndexes)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
// Check that global reward index has been updated as expected
globalRewardIndex, found := globalRewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, globalRewardIndex)
// Check that the user's claim's reward index matches the corresponding global reward index
multiRewardIndex, found := claim.BorrowRewardIndexes.GetRewardIndex(tc.args.borrow.Denom)
suite.Require().True(found)
rewardIndex, found := multiRewardIndex.RewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, rewardIndex)
// Check that the user's claim holds the expected amount of reward coins
suite.Require().Equal(
tc.args.expectedRewards.AmountOf(expectedRewardIndex.CollateralType),
claim.Reward.AmountOf(expectedRewardIndex.CollateralType),
)
}
}
// Only test cases with reward param updates continue past this point
if !tc.args.updateRewardsViaCommmittee {
return
}
// If are no initial rewards per second, add new rewards through a committee param change
// 1. Construct incentive's new HardBorrowRewardPeriods param
currIncentiveHardBorrowRewardPeriods := suite.keeper.GetParams(suite.ctx).HardBorrowRewardPeriods
multiRewardPeriod, found := currIncentiveHardBorrowRewardPeriods.GetMultiRewardPeriod(tc.args.borrow.Denom)
if found {
// Borrow denom's reward period exists, but it doesn't have any rewards per second
index, found := currIncentiveHardBorrowRewardPeriods.GetMultiRewardPeriodIndex(tc.args.borrow.Denom)
suite.Require().True(found)
multiRewardPeriod.RewardsPerSecond = tc.args.updatedRewardsPerSecond
currIncentiveHardBorrowRewardPeriods[index] = multiRewardPeriod
} else {
// Borrow denom's reward period does not exist
_, found := currIncentiveHardBorrowRewardPeriods.GetMultiRewardPeriodIndex(tc.args.borrow.Denom)
suite.Require().False(found)
newMultiRewardPeriod := types.NewMultiRewardPeriod(true, tc.args.borrow.Denom, suite.genesisTime, suite.genesisTime.Add(time.Hour*24*365*4), tc.args.updatedRewardsPerSecond)
currIncentiveHardBorrowRewardPeriods = append(currIncentiveHardBorrowRewardPeriods, newMultiRewardPeriod)
}
// 2. Construct the parameter change proposal to update HardBorrowRewardPeriods param
pubProposal := proposaltypes.NewParameterChangeProposal(
"Update hard borrow rewards", "Adds a new reward coin to the incentive module's hard borrow rewards.",
[]proposaltypes.ParamChange{
{
Subspace: types.ModuleName, // target incentive module
Key: string(types.KeyHardBorrowRewardPeriods), // target hard borrow rewards key
Value: string(suite.app.LegacyAmino().MustMarshalJSON(currIncentiveHardBorrowRewardPeriods)),
},
},
)
// 3. Ensure proposal is properly formed
err = suite.committeeKeeper.ValidatePubProposal(suite.ctx, pubProposal)
suite.Require().NoError(err)
// 4. Committee creates proposal
committeeMemberOne := suite.addrs[0]
committeeMemberTwo := suite.addrs[1]
proposalID, err := suite.committeeKeeper.SubmitProposal(suite.ctx, committeeMemberOne, 1, pubProposal)
suite.Require().NoError(err)
// 5. Committee votes and passes proposal
err = suite.committeeKeeper.AddVote(suite.ctx, proposalID, committeeMemberOne, committeetypes.VOTE_TYPE_YES)
suite.Require().NoError(err)
err = suite.committeeKeeper.AddVote(suite.ctx, proposalID, committeeMemberTwo, committeetypes.VOTE_TYPE_YES)
suite.Require().NoError(err)
// 6. Check proposal passed
com, found := suite.committeeKeeper.GetCommittee(suite.ctx, 1)
suite.Require().True(found)
proposalPasses := suite.committeeKeeper.GetProposalResult(suite.ctx, proposalID, com)
suite.Require().NoError(err)
suite.Require().True(proposalPasses)
// 7. Run committee module's begin blocker to enact proposal
suite.NotPanics(func() {
committee.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}, suite.committeeKeeper)
})
// We need to accumulate hard supply-side rewards again
multiRewardPeriod, found = suite.keeper.GetHardBorrowRewardPeriods(suite.ctx, tc.args.borrow.Denom)
suite.Require().True(found)
// But new borrow denoms don't have their PreviousHardBorrowRewardAccrualTime set yet,
// so we need to call the accumulation method once to set the initial reward accrual time
if tc.args.borrow.Denom != tc.args.incentiveBorrowRewardDenom {
suite.keeper.AccumulateHardBorrowRewards(suite.ctx, multiRewardPeriod)
}
// Now we can jump forward in time and accumulate rewards
updatedBlockTime = previousBlockTime.Add(time.Duration(int(time.Second) * tc.args.updatedTimeDuration))
suite.ctx = suite.ctx.WithBlockTime(updatedBlockTime)
suite.keeper.AccumulateHardBorrowRewards(suite.ctx, multiRewardPeriod)
// After we've accumulated, run synchronize
borrow, found = suite.hardKeeper.GetBorrow(suite.ctx, userAddr)
suite.Require().True(found)
suite.Require().NotPanics(func() {
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
})
// Check that the global reward index's reward factor and user's claim have been updated as expected
globalRewardIndexes, found = suite.keeper.GetHardBorrowRewardIndexes(suite.ctx, tc.args.borrow.Denom)
suite.Require().True(found)
claim, found = suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
for _, expectedRewardIndex := range tc.args.updatedExpectedRewardIndexes {
// Check that global reward index has been updated as expected
globalRewardIndex, found := globalRewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, globalRewardIndex)
// Check that the user's claim's reward index matches the corresponding global reward index
multiRewardIndex, found := claim.BorrowRewardIndexes.GetRewardIndex(tc.args.borrow.Denom)
suite.Require().True(found)
rewardIndex, found := multiRewardIndex.RewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, rewardIndex)
// Check that the user's claim holds the expected amount of reward coins
suite.Require().Equal(
tc.args.updatedExpectedRewards.AmountOf(expectedRewardIndex.CollateralType),
claim.Reward.AmountOf(expectedRewardIndex.CollateralType),
)
}
})
}
}
func (suite *BorrowRewardsTestSuite) TestUpdateHardBorrowIndexDenoms() {
type withdrawModification struct {
coins sdk.Coins
repay bool
}
type args struct {
initialDeposit sdk.Coins
firstBorrow sdk.Coins
modification withdrawModification
rewardsPerSecond sdk.Coins
expectedBorrowIndexDenoms []string
}
type test struct {
name string
args args
}
testCases := []test{
{
"single reward denom: update adds one borrow reward index",
args{
initialDeposit: cs(c("bnb", 10000000000)),
firstBorrow: cs(c("bnb", 50000000)),
modification: withdrawModification{coins: cs(c("ukava", 500000000))},
rewardsPerSecond: cs(c("hard", 122354)),
expectedBorrowIndexDenoms: []string{"bnb", "ukava"},
},
},
{
"single reward denom: update adds multiple borrow supply reward indexes",
args{
initialDeposit: cs(c("btcb", 10000000000)),
firstBorrow: cs(c("btcb", 50000000)),
modification: withdrawModification{coins: cs(c("ukava", 500000000), c("bnb", 50000000000), c("xrp", 50000000000))},
rewardsPerSecond: cs(c("hard", 122354)),
expectedBorrowIndexDenoms: []string{"btcb", "ukava", "bnb", "xrp"},
},
},
{
"single reward denom: update doesn't add duplicate borrow reward index for same denom",
args{
initialDeposit: cs(c("bnb", 100000000000)),
firstBorrow: cs(c("bnb", 50000000)),
modification: withdrawModification{coins: cs(c("bnb", 50000000000))},
rewardsPerSecond: cs(c("hard", 122354)),
expectedBorrowIndexDenoms: []string{"bnb"},
},
},
{
"multiple reward denoms: update adds one borrow reward index",
args{
initialDeposit: cs(c("bnb", 10000000000)),
firstBorrow: cs(c("bnb", 50000000)),
modification: withdrawModification{coins: cs(c("ukava", 500000000))},
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
expectedBorrowIndexDenoms: []string{"bnb", "ukava"},
},
},
{
"multiple reward denoms: update adds multiple borrow supply reward indexes",
args{
initialDeposit: cs(c("btcb", 10000000000)),
firstBorrow: cs(c("btcb", 50000000)),
modification: withdrawModification{coins: cs(c("ukava", 500000000), c("bnb", 50000000000), c("xrp", 50000000000))},
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
expectedBorrowIndexDenoms: []string{"btcb", "ukava", "bnb", "xrp"},
},
},
{
"multiple reward denoms: update doesn't add duplicate borrow reward index for same denom",
args{
initialDeposit: cs(c("bnb", 100000000000)),
firstBorrow: cs(c("bnb", 50000000)),
modification: withdrawModification{coins: cs(c("bnb", 50000000000))},
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
expectedBorrowIndexDenoms: []string{"bnb"},
},
},
{
"single reward denom: fully repaying a denom deletes the denom's supply reward index",
args{
initialDeposit: cs(c("bnb", 1000000000)),
firstBorrow: cs(c("bnb", 100000000)),
modification: withdrawModification{coins: cs(c("bnb", 1100000000)), repay: true},
rewardsPerSecond: cs(c("hard", 122354)),
expectedBorrowIndexDenoms: []string{},
},
},
{
"single reward denom: fully repaying a denom deletes only the denom's supply reward index",
args{
initialDeposit: cs(c("bnb", 1000000000)),
firstBorrow: cs(c("bnb", 100000000), c("ukava", 10000000)),
modification: withdrawModification{coins: cs(c("bnb", 1100000000)), repay: true},
rewardsPerSecond: cs(c("hard", 122354)),
expectedBorrowIndexDenoms: []string{"ukava"},
},
},
{
"multiple reward denoms: fully repaying a denom deletes the denom's supply reward index",
args{
initialDeposit: cs(c("bnb", 1000000000)),
firstBorrow: cs(c("bnb", 100000000), c("ukava", 10000000)),
modification: withdrawModification{coins: cs(c("bnb", 1100000000)), repay: true},
rewardsPerSecond: cs(c("hard", 122354), c("ukava", 122354)),
expectedBorrowIndexDenoms: []string{"ukava"},
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
userAddr := suite.addrs[3]
authBuilder := app.NewAuthBankGenesisBuilder().
WithSimpleAccount(
userAddr,
cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)),
).
WithSimpleAccount(
suite.addrs[0],
cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)),
)
incentBuilder := testutil.NewIncentiveGenesisBuilder().
WithGenesisTime(suite.genesisTime).
WithSimpleBorrowRewardPeriod("bnb", tc.args.rewardsPerSecond).
WithSimpleBorrowRewardPeriod("ukava", tc.args.rewardsPerSecond).
WithSimpleBorrowRewardPeriod("btcb", tc.args.rewardsPerSecond).
WithSimpleBorrowRewardPeriod("xrp", tc.args.rewardsPerSecond)
suite.SetupWithGenState(authBuilder, incentBuilder, NewHardGenStateMulti(suite.genesisTime))
// Fill the hard supply to allow user to borrow
err := suite.hardKeeper.Deposit(suite.ctx, suite.addrs[0], tc.args.firstBorrow.Add(tc.args.modification.coins...))
suite.Require().NoError(err)
// User deposits initial funds (so that user can borrow)
err = suite.hardKeeper.Deposit(suite.ctx, userAddr, tc.args.initialDeposit)
suite.Require().NoError(err)
// Confirm that claim exists but no borrow reward indexes have been added
claimAfterDeposit, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
suite.Require().Equal(0, len(claimAfterDeposit.BorrowRewardIndexes))
// User borrows (first time)
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, tc.args.firstBorrow)
suite.Require().NoError(err)
// Confirm that claim's borrow reward indexes have been updated
claimAfterFirstBorrow, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
for _, coin := range tc.args.firstBorrow {
_, hasIndex := claimAfterFirstBorrow.HasBorrowRewardIndex(coin.Denom)
suite.Require().True(hasIndex)
}
suite.Require().True(len(claimAfterFirstBorrow.BorrowRewardIndexes) == len(tc.args.firstBorrow))
// User modifies their Borrow by either repaying or borrowing more
if tc.args.modification.repay {
err = suite.hardKeeper.Repay(suite.ctx, userAddr, userAddr, tc.args.modification.coins)
} else {
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, tc.args.modification.coins)
}
suite.Require().NoError(err)
// Confirm that claim's borrow reward indexes contain expected values
claimAfterModification, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(found)
for _, coin := range tc.args.modification.coins {
_, hasIndex := claimAfterModification.HasBorrowRewardIndex(coin.Denom)
if tc.args.modification.repay {
// Only false if denom is repaid in full
if tc.args.modification.coins.AmountOf(coin.Denom).GTE(tc.args.firstBorrow.AmountOf(coin.Denom)) {
suite.Require().False(hasIndex)
}
} else {
suite.Require().True(hasIndex)
}
}
suite.Require().True(len(claimAfterModification.BorrowRewardIndexes) == len(tc.args.expectedBorrowIndexDenoms))
})
}
}
func (suite *BorrowRewardsTestSuite) TestSimulateHardBorrowRewardSynchronization() {
type args struct {
borrow sdk.Coin
rewardsPerSecond sdk.Coins
blockTimes []int
expectedRewardIndexes types.RewardIndexes
expectedRewards sdk.Coins
}
type test struct {
name string
args args
}
testCases := []test{
{
"10 blocks",
args{
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("0.001223540000173228"))},
expectedRewards: cs(c("hard", 12235400)),
},
},
{
"10 blocks - long block time",
args{
borrow: c("bnb", 10000000000),
rewardsPerSecond: cs(c("hard", 122354)),
blockTimes: []int{86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("hard", d("10.571385603126235340"))},
expectedRewards: cs(c("hard", 105713856031)),
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
userAddr := suite.addrs[3]
authBuilder := app.NewAuthBankGenesisBuilder().WithSimpleAccount(userAddr, cs(c("bnb", 1e15), c("ukava", 1e15), c("btcb", 1e15), c("xrp", 1e15), c("zzz", 1e15)))
incentBuilder := testutil.NewIncentiveGenesisBuilder().
WithGenesisTime(suite.genesisTime).
WithSimpleBorrowRewardPeriod(tc.args.borrow.Denom, tc.args.rewardsPerSecond)
suite.SetupWithGenState(authBuilder, incentBuilder, NewHardGenStateMulti(suite.genesisTime))
// User deposits and borrows to increase total borrowed amount
err := suite.hardKeeper.Deposit(suite.ctx, userAddr, sdk.NewCoins(sdk.NewCoin(tc.args.borrow.Denom, tc.args.borrow.Amount.Mul(sdk.NewInt(2)))))
suite.Require().NoError(err)
err = suite.hardKeeper.Borrow(suite.ctx, userAddr, sdk.NewCoins(tc.args.borrow))
suite.Require().NoError(err)
// Run accumulator at several intervals
var timeElapsed int
previousBlockTime := suite.ctx.BlockTime()
for _, t := range tc.args.blockTimes {
timeElapsed += t
updatedBlockTime := previousBlockTime.Add(time.Duration(int(time.Second) * t))
previousBlockTime = updatedBlockTime
blockCtx := suite.ctx.WithBlockTime(updatedBlockTime)
// Run Hard begin blocker for each block ctx to update denom's interest factor
hard.BeginBlocker(blockCtx, suite.hardKeeper)
// Accumulate hard borrow-side rewards
multiRewardPeriod, found := suite.keeper.GetHardBorrowRewardPeriods(blockCtx, tc.args.borrow.Denom)
suite.Require().True(found)
suite.keeper.AccumulateHardBorrowRewards(blockCtx, multiRewardPeriod)
}
updatedBlockTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * timeElapsed))
suite.ctx = suite.ctx.WithBlockTime(updatedBlockTime)
// Confirm that the user's claim hasn't been synced
claimPre, foundPre := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, userAddr)
suite.Require().True(foundPre)
multiRewardIndexPre, _ := claimPre.BorrowRewardIndexes.GetRewardIndex(tc.args.borrow.Denom)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
currRewardIndex, found := multiRewardIndexPre.RewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(sdk.ZeroDec(), currRewardIndex.RewardFactor)
}
// Check that the synced claim held in memory has properly simulated syncing
syncedClaim := suite.keeper.SimulateHardSynchronization(suite.ctx, claimPre)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
// Check that the user's claim's reward index matches the expected reward index
multiRewardIndex, found := syncedClaim.BorrowRewardIndexes.GetRewardIndex(tc.args.borrow.Denom)
suite.Require().True(found)
rewardIndex, found := multiRewardIndex.RewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, rewardIndex)
// Check that the user's claim holds the expected amount of reward coins
suite.Require().Equal(
tc.args.expectedRewards.AmountOf(expectedRewardIndex.CollateralType),
syncedClaim.Reward.AmountOf(expectedRewardIndex.CollateralType),
)
}
})
}
}
func TestBorrowRewardsTestSuite(t *testing.T) {
suite.Run(t, new(BorrowRewardsTestSuite))
}
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