smeb_y/0g-chain
1
0
Fork 0
mirror of https://github.com/0glabs/0g-chain.git synced 2024-12-24 15:25:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Incentive refactor: hard rewards (#929)

Browse Source 
* organise testing committee gen state

* remove repeated test app initialization

* minor fixes from linter in tests

* move more setup to SetupApp

* split up KeeperTestSuite for each reward type

* simplify KeeperTestSuite

* simplify PayoutKeeperSuite

* simplify DelegatorRewardSuite

* simplify SupplyRewardsSuite

* simplify BorrowRewardsSuite

* simplify USDXRewardsSuite

* add auth genesis builder for easier test setup

* migrate all incentive tests to auth builder

* add incentive genesis builder for easier setup
migrate hard incentive tests

* migrate all tests to incentive builder

* add hard genesis builder

* small tidy ups

* deduplicate initialTime from borrow tests

* deduplicate initialtTime from supply tests

* deduplicate initialTime from usdx and keeper tests

* deduplicate initialTime in delgator tests

* deduplicate genesis time in payout test

* deduplicate test app initialization

* make authGenesisBuilder available for all modules

* remove unused pricefeed setup

* export incentive genesis builder

* remove commented out test cases

* migrate cdp test to new test state builders

* migrate vv payout tests to use new builders

* add SynchronizeHardBorrowReward unit test

* extract calculatReward method

* tidy up unit test for borrow rewards

* add helper method to RewardIndexes

* user helper to extract logic from SyncBorrowReward

* add Get methods to (Multi)RewardIndexes

* replace params.Subspace in keeper to test easier

* add unit tests for usdx minting

* refactor InitializeUSDXMintingClaim

* add unit tests for InitializeHardBorrowRewards

* refactor SynchronizeUSDXMintingReward

* add unit tests for UpdateHardBorrowIndexDenoms

* change rewardSource type to Dec
needed by delegation rewards

* fix typo in test names

* refactor UpdateHardBorrowIndexDenoms

* update genesis test TODO to use auth builder

* add skipped test for bug in usdx sync

* extract common method for calculating rewards

* doc comment tidy

* add unit tests for delegator rewards

* tidy up test files

* remove old TODOs

* reaarrange InitializeHardDelegatorReward
to fit with other init reward functions

* duplicate borrow unit tests to create supply tests

* add tests for syncing with zero rewards per second

* refactor SynchronizeHardDelegatorRewards

* refactor supply rewards in same way as borrow

* fix total delegation calculation bug

* fix new usdx reward bug

* fix new supply/borrow reward bug

* remove working comment

* standardize behaviour when global factors missing

* improve documentation for CalculateRewards

* standardize variable names

* remove panic from calculateSingleReward

* wip

* Tidy up comments

* remove wip comment
This commit is contained in:
Ruaridh 2021-06-21 22:05:17 +01:00 committed by GitHub
parent 15598af3a3
commit cf16029e77
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
24 changed files with 2864 additions and 224 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
x/incentive/genesis_test.go
View File

@ -37,11 +37,10 @@ func (suite *GenesisTestSuite) SetupTest() {
suite.genesisTime = time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC)
_, addrs := app.GeneratePrivKeyAddressPairs(3)
coins := []sdk.Coins{}
for j := 0; j < 3; j++ {
coins = append(coins, cs(c("bnb", 10_000_000_000), c("ukava", 10_000_000_000)))
}
authGS := app.NewAuthGenState(addrs, coins)
authBuilder := app.NewAuthGenesisBuilder().
WithSimpleAccount(addrs[0], cs(c("bnb", 1e10), c("ukava", 1e10))).
WithSimpleModuleAccount(kavadist.KavaDistMacc, cs(c("hard", 1e15), c("ukava", 1e15)))
loanToValue, _ := sdk.NewDecFromStr("0.6")
borrowLimit := sdk.NewDec(1000000000000000)
@ -78,7 +77,7 @@ func (suite *GenesisTestSuite) SetupTest() {
)
tApp.InitializeFromGenesisStatesWithTime(
suite.genesisTime,
authGS,
authBuilder.BuildMarshalled(),
app.GenesisState{incentive.ModuleName: incentive.ModuleCdc.MustMarshalJSON(incentiveGS)},
app.GenesisState{hard.ModuleName: hard.ModuleCdc.MustMarshalJSON(hardGS)},
NewCDPGenStateMulti(),
@ -87,14 +86,6 @@ func (suite *GenesisTestSuite) SetupTest() {
ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: suite.genesisTime})
// TODO add to auth gen state to tidy up test
err := tApp.GetSupplyKeeper().MintCoins(
ctx,
kavadist.KavaDistMacc,
cs(c("hard", 1_000_000_000_000_000), c("ukava", 1_000_000_000_000_000)),
)
suite.Require().NoError(err)
suite.addrs = addrs
suite.keeper = keeper
suite.app = tApp

2
x/incentive/keeper/hooks.go
View File

@ -81,6 +81,8 @@ When delegated tokens (to bonded validators) are changed:
- jail: total bonded delegation decreases (tokens no longer bonded (after end blocker runs))
- validator becomes unbonded (ie when they drop out of the top 100)
- total bonded delegation decreases (tokens no longer bonded)
- validator becomes bonded (ie when they're promoted into the top 100)
- total bonded delegation increases (tokens become bonded)
*/

3
x/incentive/keeper/integration_test.go
View File

@ -262,9 +262,6 @@ func (builder IncentiveGenesisBuilder) WithSimpleBorrowRewardPeriod(ctype string
))
}
func (builder IncentiveGenesisBuilder) WithInitializedSupplyRewardPeriod(period types.MultiRewardPeriod) IncentiveGenesisBuilder {
// TODO this could set the start/end times on the period according to builder.genesisTime
// Then they could be created by a different builder
builder.Params.HardSupplyRewardPeriods = append(builder.Params.HardSupplyRewardPeriods, period)
accumulationTimeForPeriod := types.NewGenesisAccumulationTime(period.CollateralType, builder.genesisTime)

11
x/incentive/keeper/keeper.go
View File

@ -6,7 +6,6 @@ import (
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/params/subspace"
"github.com/kava-labs/kava/x/incentive/types"
)
@ -18,24 +17,28 @@ type Keeper struct {
cdpKeeper types.CdpKeeper
hardKeeper types.HardKeeper
key sdk.StoreKey
paramSubspace subspace.Subspace
paramSubspace types.ParamSubspace
supplyKeeper types.SupplyKeeper
stakingKeeper types.StakingKeeper
}
// NewKeeper creates a new keeper
func NewKeeper(
cdc *codec.Codec, key sdk.StoreKey, paramstore subspace.Subspace, sk types.SupplyKeeper,
cdc *codec.Codec, key sdk.StoreKey, paramstore types.ParamSubspace, sk types.SupplyKeeper,
cdpk types.CdpKeeper, hk types.HardKeeper, ak types.AccountKeeper, stk types.StakingKeeper,
) Keeper {
if !paramstore.HasKeyTable() {
paramstore = paramstore.WithKeyTable(types.ParamKeyTable())
}
return Keeper{
accountKeeper: ak,
cdc: cdc,
cdpKeeper: cdpk,
hardKeeper: hk,
key: key,
paramSubspace: paramstore.WithKeyTable(types.ParamKeyTable()),
paramSubspace: paramstore,
supplyKeeper: sk,
stakingKeeper: stk,
}

140
x/incentive/keeper/rewards_borrow.go
View File

@ -4,6 +4,7 @@ import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
@ -85,14 +86,11 @@ func (k Keeper) InitializeHardBorrowReward(ctx sdk.Context, borrow hardtypes.Bor
var borrowRewardIndexes types.MultiRewardIndexes
for _, coin := range borrow.Amount {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardBorrowRewardIndexes(ctx, coin.Denom)
var multiRewardIndex types.MultiRewardIndex
if foundGlobalRewardIndexes {
multiRewardIndex = types.NewMultiRewardIndex(coin.Denom, globalRewardIndexes)
} else {
multiRewardIndex = types.NewMultiRewardIndex(coin.Denom, types.RewardIndexes{})
globalRewardIndexes, found := k.GetHardBorrowRewardIndexes(ctx, coin.Denom)
if !found {
globalRewardIndexes = types.RewardIndexes{}
}
borrowRewardIndexes = append(borrowRewardIndexes, multiRewardIndex)
borrowRewardIndexes = borrowRewardIndexes.With(coin.Denom, globalRewardIndexes)
}
claim.BorrowRewardIndexes = borrowRewardIndexes
@ -108,49 +106,34 @@ func (k Keeper) SynchronizeHardBorrowReward(ctx sdk.Context, borrow hardtypes.Bo
}
for _, coin := range borrow.Amount {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardBorrowRewardIndexes(ctx, coin.Denom)
if !foundGlobalRewardIndexes {
globalRewardIndexes, found := k.GetHardBorrowRewardIndexes(ctx, coin.Denom)
if !found {
// The global factor is only not found if
// - the borrowed denom has not started accumulating rewards yet (either there is no reward specified in params, or the reward start time hasn't been hit)
// - OR it was wrongly deleted from state (factors should never be removed while unsynced claims exist)
// If not found we could either skip this sync, or assume the global factor is zero.
// Skipping will avoid storing unnecessary factors in the claim for non rewarded denoms.
// And in the event a global factor is wrongly deleted, it will avoid this function panicking when calculating rewards.
continue
}
userMultiRewardIndex, foundUserMultiRewardIndex := claim.BorrowRewardIndexes.GetRewardIndex(coin.Denom)
if !foundUserMultiRewardIndex {
continue
userRewardIndexes, found := claim.BorrowRewardIndexes.Get(coin.Denom)
if !found {
// Normally the reward indexes should always be found.
// But if a denom was not rewarded then becomes rewarded (ie a reward period is added to params), then the indexes will be missing from claims for that borrowed denom.
// So given the reward period was just added, assume the starting value for any global reward indexes, which is an empty slice.
userRewardIndexes = types.RewardIndexes{}
}
userRewardIndexIndex, foundUserRewardIndexIndex := claim.BorrowRewardIndexes.GetRewardIndexIndex(coin.Denom)
if !foundUserRewardIndexIndex {
continue
newRewards, err := k.CalculateRewards(userRewardIndexes, globalRewardIndexes, coin.Amount.ToDec())
if err != nil {
// Global reward factors should never decrease, as it would lead to a negative update to claim.Rewards.
// This panics if a global reward factor decreases or disappears between the old and new indexes.
panic(fmt.Sprintf("corrupted global reward indexes found: %v", err))
}
for _, globalRewardIndex := range globalRewardIndexes {
userRewardIndex, foundUserRewardIndex := userMultiRewardIndex.RewardIndexes.GetRewardIndex(globalRewardIndex.CollateralType)
if !foundUserRewardIndex {
// User borrowed this coin type before it had rewards. When new rewards are added, legacy borrowers
// should immediately begin earning rewards. Enable users to do so by updating their claim with the global
// reward index denom and start their reward factor at 0.0
userRewardIndex = types.NewRewardIndex(globalRewardIndex.CollateralType, sdk.ZeroDec())
userMultiRewardIndex.RewardIndexes = append(userMultiRewardIndex.RewardIndexes, userRewardIndex)
claim.BorrowRewardIndexes[userRewardIndexIndex] = userMultiRewardIndex
}
globalRewardFactor := globalRewardIndex.RewardFactor
userRewardFactor := userRewardIndex.RewardFactor
rewardsAccumulatedFactor := globalRewardFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsNegative() {
panic(fmt.Sprintf("reward accumulation factor cannot be negative: %s", rewardsAccumulatedFactor))
}
newRewardsAmount := rewardsAccumulatedFactor.Mul(borrow.Amount.AmountOf(coin.Denom).ToDec()).RoundInt()
factorIndex, foundFactorIndex := userMultiRewardIndex.RewardIndexes.GetFactorIndex(globalRewardIndex.CollateralType)
if !foundFactorIndex { // should never trigger
continue
}
claim.BorrowRewardIndexes[userRewardIndexIndex].RewardIndexes[factorIndex].RewardFactor = globalRewardIndex.RewardFactor
newRewardsCoin := sdk.NewCoin(userRewardIndex.CollateralType, newRewardsAmount)
claim.Reward = claim.Reward.Add(newRewardsCoin)
}
claim.Reward = claim.Reward.Add(newRewards...)
claim.BorrowRewardIndexes = claim.BorrowRewardIndexes.With(coin.Denom, globalRewardIndexes)
}
k.SetHardLiquidityProviderClaim(ctx, claim)
}
@ -165,26 +148,22 @@ func (k Keeper) UpdateHardBorrowIndexDenoms(ctx sdk.Context, borrow hardtypes.Bo
borrowDenoms := getDenoms(borrow.Amount)
borrowRewardIndexDenoms := claim.BorrowRewardIndexes.GetCollateralTypes()
uniqueBorrowDenoms := setDifference(borrowDenoms, borrowRewardIndexDenoms)
uniqueBorrowRewardDenoms := setDifference(borrowRewardIndexDenoms, borrowDenoms)
borrowRewardIndexes := claim.BorrowRewardIndexes
// Create a new multi-reward index in the claim for every new borrow denom
uniqueBorrowDenoms := setDifference(borrowDenoms, borrowRewardIndexDenoms)
for _, denom := range uniqueBorrowDenoms {
_, foundUserRewardIndexes := claim.BorrowRewardIndexes.GetRewardIndex(denom)
if !foundUserRewardIndexes {
globalBorrowRewardIndexes, foundGlobalBorrowRewardIndexes := k.GetHardBorrowRewardIndexes(ctx, denom)
var multiRewardIndex types.MultiRewardIndex
if foundGlobalBorrowRewardIndexes {
multiRewardIndex = types.NewMultiRewardIndex(denom, globalBorrowRewardIndexes)
} else {
multiRewardIndex = types.NewMultiRewardIndex(denom, types.RewardIndexes{})
}
borrowRewardIndexes = append(borrowRewardIndexes, multiRewardIndex)
globalBorrowRewardIndexes, found := k.GetHardBorrowRewardIndexes(ctx, denom)
if !found {
globalBorrowRewardIndexes = types.RewardIndexes{}
}
borrowRewardIndexes = borrowRewardIndexes.With(denom, globalBorrowRewardIndexes)
}
// Delete multi-reward index from claim if the collateral type is no longer borrowed
uniqueBorrowRewardDenoms := setDifference(borrowRewardIndexDenoms, borrowDenoms)
for _, denom := range uniqueBorrowRewardDenoms {
borrowRewardIndexes = borrowRewardIndexes.RemoveRewardIndex(denom)
}
@ -192,3 +171,52 @@ func (k Keeper) UpdateHardBorrowIndexDenoms(ctx sdk.Context, borrow hardtypes.Bo
claim.BorrowRewardIndexes = borrowRewardIndexes
k.SetHardLiquidityProviderClaim(ctx, claim)
}
// CalculateRewards computes how much rewards should have accrued to a source (eg a user's hard borrowed btc amount)
// between two index values.
//
// oldIndex is normally the index stored on a claim, newIndex the current global value, and rewardSource a hard borrowed/supplied amount.
//
// Returns an error if newIndexes does not contain all CollateralTypes from oldIndexes, or if any value of oldIndex.RewardFactor > newIndex.RewardFactor.
// This should never happen, as it would mean that a global reward index has decreased in value, or that a global reward index has been deleted from state.
func (k Keeper) CalculateRewards(oldIndexes, newIndexes types.RewardIndexes, rewardSource sdk.Dec) (sdk.Coins, error) {
// check for missing CollateralType's
for _, oldIndex := range oldIndexes {
if newIndex, found := newIndexes.Get(oldIndex.CollateralType); !found {
return nil, sdkerrors.Wrapf(types.ErrDecreasingRewardFactor, "old: %v, new: %v", oldIndex, newIndex)
}
}
var reward sdk.Coins
for _, newIndex := range newIndexes {
oldFactor, found := oldIndexes.Get(newIndex.CollateralType)
if !found {
oldFactor = sdk.ZeroDec()
}
rewardAmount, err := k.CalculateSingleReward(oldFactor, newIndex.RewardFactor, rewardSource)
if err != nil {
return nil, err
}
reward = reward.Add(
sdk.NewCoin(newIndex.CollateralType, rewardAmount),
)
}
return reward, nil
}
// CalculateSingleReward computes how much rewards should have accrued to a source (eg a user's btcb-a cdp principal)
// between two index values.
//
// oldIndex is normally the index stored on a claim, newIndex the current global value, and rewardSource a cdp principal amount.
//
// Returns an error if oldIndex > newIndex. This should never happen, as it would mean that a global reward index has decreased in value,
// or that a global reward index has been deleted from state.
func (k Keeper) CalculateSingleReward(oldIndex, newIndex, rewardSource sdk.Dec) (sdk.Int, error) {
increase := newIndex.Sub(oldIndex)
if increase.IsNegative() {
return sdk.Int{}, sdkerrors.Wrapf(types.ErrDecreasingRewardFactor, "old: %v, new: %v", oldIndex, newIndex)
}
reward := increase.Mul(rewardSource).RoundInt()
return reward, nil
}

89
x/incentive/keeper/rewards_borrow_init_test.go Normal file
View File

@ -0,0 +1,89 @@
package keeper_test
import (
"testing"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// InitializeHardBorrowRewardTests runs unit tests for the keeper.InitializeHardBorrowReward method
//
// inputs
// - claim in store if it exists (only claim.BorrowRewardIndexes)
// - global indexes in store
// - borrow function arg (only borrow.Amount)
//
// outputs
// - sets or creates a claim
type InitializeHardBorrowRewardTests struct {
unitTester
}
func TestInitializeHardBorrowReward(t *testing.T) {
suite.Run(t, new(InitializeHardBorrowRewardTests))
}
func (suite *InitializeHardBorrowRewardTests) TestClaimIndexesAreSetWhenClaimExists() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
// Indexes should always be empty when initialize is called.
// If initialize is called then the user must have repaid their borrow positions,
// which means UpdateHardBorrowIndexDenoms was called and should have remove indexes.
BorrowRewardIndexes: types.MultiRewardIndexes{},
}
suite.storeClaim(claim)
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.InitializeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *InitializeHardBorrowRewardTests) TestClaimIndexesAreSetWhenClaimDoesNotExist() {
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalBorrowIndexes(globalIndexes)
owner := arbitraryAddress()
borrow := hardtypes.Borrow{
Borrower: owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.InitializeHardBorrowReward(suite.ctx, borrow)
syncedClaim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, owner)
suite.True(found)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *InitializeHardBorrowRewardTests) TestClaimIndexesAreSetEmptyForMissingIndexes() {
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalBorrowIndexes(globalIndexes)
owner := arbitraryAddress()
// Borrow a denom that is not in the global indexes.
// This happens when a borrow denom has no rewards associated with it.
expectedIndexes := appendUniqueEmptyMultiRewardIndex(globalIndexes)
borrowedDenoms := extractCollateralTypes(expectedIndexes)
borrow := hardtypes.Borrow{
Borrower: owner,
Amount: arbitraryCoinsWithDenoms(borrowedDenoms...),
}
suite.keeper.InitializeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, owner)
suite.Equal(expectedIndexes, syncedClaim.BorrowRewardIndexes)
}

528
x/incentive/keeper/rewards_borrow_sync_test.go Normal file
View File

@ -0,0 +1,528 @@
package keeper_test
import (
"errors"
"testing"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/keeper"
"github.com/kava-labs/kava/x/incentive/types"
)
// SynchronizeHardBorrowRewardTests runs unit tests for the keeper.SynchronizeHardBorrowReward method
//
// inputs
// - claim in store (only claim.BorrowRewardIndexes, claim.Reward)
// - global indexes in store
// - borrow function arg (only borrow.Amount)
//
// outputs
// - sets a claim
type SynchronizeHardBorrowRewardTests struct {
unitTester
}
func TestSynchronizeHardBorrowReward(t *testing.T) {
suite.Run(t, new(SynchronizeHardBorrowRewardTests))
}
func (suite *SynchronizeHardBorrowRewardTests) TestClaimIndexesAreUpdatedWhenGlobalIndexesHaveIncreased() {
// This is the normal case
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseAllRewardFactors(nonEmptyMultiRewardIndexes)
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(claim.BorrowRewardIndexes)...),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *SynchronizeHardBorrowRewardTests) TestClaimIndexesAreUnchangedWhenGlobalIndexesUnchanged() {
// It should be safe to call SynchronizeHardBorrowReward multiple times
unchangingIndexes := nonEmptyMultiRewardIndexes
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: unchangingIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalBorrowIndexes(unchangingIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(unchangingIndexes)...),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(unchangingIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *SynchronizeHardBorrowRewardTests) TestClaimIndexesAreUpdatedWhenNewRewardAdded() {
// When a new reward is added (via gov) for a hard borrow denom the user has already borrowed, and the claim is synced;
// Then the new reward's index should be added to the claim.
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueMultiRewardIndex(nonEmptyMultiRewardIndexes)
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *SynchronizeHardBorrowRewardTests) TestClaimIndexesAreUpdatedWhenNewRewardDenomAdded() {
// When a new reward coin is added (via gov) to an already rewarded borrow denom (that the user has already borrowed), and the claim is synced;
// Then the new reward coin's index should be added to the claim.
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueRewardIndexToFirstItem(nonEmptyMultiRewardIndexes)
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *SynchronizeHardBorrowRewardTests) TestRewardIsIncrementedWhenGlobalIndexesHaveIncreased() {
// This is the normal case
// Given some time has passed (meaning the global indexes have increased)
// When the claim is synced
// The user earns rewards for the time passed
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
BorrowRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "borrowdenom",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "rewarddenom",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
suite.storeGlobalBorrowIndexes(types.MultiRewardIndexes{
{
CollateralType: "borrowdenom",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "rewarddenom",
RewardFactor: d("2000.002"),
},
},
},
})
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: cs(c("borrowdenom", 1e9)),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
// new reward is (new index - old index) * borrow amount
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("rewarddenom", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}
func (suite *SynchronizeHardBorrowRewardTests) TestRewardIsIncrementedWhenNewRewardAdded() {
// When a new reward is added (via gov) for a hard borrow denom the user has already borrowed, and the claim is synced
// Then the user earns rewards for the time since the reward was added
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
BorrowRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "rewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
globalIndexes := types.MultiRewardIndexes{
{
CollateralType: "rewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("2000.002"),
},
},
},
{
CollateralType: "newlyrewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "otherreward",
// Indexes start at 0 when the reward is added by gov,
// so this represents the syncing happening some time later.
RewardFactor: d("1000.001"),
},
},
},
}
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: cs(c("rewarded", 1e9), c("newlyrewarded", 1e9)),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
// new reward is (new index - old index) * borrow amount for each borrowed denom
// The old index for `newlyrewarded` isn't in the claim, so it's added starting at 0 for calculating the reward.
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("otherreward", 1_000_001_000_000), c("reward", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}
func (suite *SynchronizeHardBorrowRewardTests) TestRewardIsIncrementedWhenNewRewardDenomAdded() {
// When a new reward coin is added (via gov) to an already rewarded borrow denom (that the user has already borrowed), and the claim is synced;
// Then the user earns rewards for the time since the reward was added
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
BorrowRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "borrowed",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
globalIndexes := types.MultiRewardIndexes{
{
CollateralType: "borrowed",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("2000.002"),
},
{
CollateralType: "otherreward",
// Indexes start at 0 when the reward is added by gov,
// so this represents the syncing happening some time later.
RewardFactor: d("1000.001"),
},
},
},
}
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: cs(c("borrowed", 1e9)),
}
suite.keeper.SynchronizeHardBorrowReward(suite.ctx, borrow)
// new reward is (new index - old index) * borrow amount for each borrowed denom
// The old index for `otherreward` isn't in the claim, so it's added starting at 0 for calculating the reward.
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("reward", 1_000_001_000_000), c("otherreward", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}
func TestCalculateRewards(t *testing.T) {
type expected struct {
err error
coins sdk.Coins
}
type args struct {
oldIndexes, newIndexes types.RewardIndexes
sourceAmount sdk.Dec
}
testcases := []struct {
name string
args args
expected expected
}{
{
name: "when old and new indexes have same denoms, rewards are calculated correctly",
args: args{
oldIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.000000001"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.1"),
},
},
newIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("1000.0"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.100000001"),
},
},
sourceAmount: d("1000000000"),
},
expected: expected{
// for each denom: (new - old) * sourceAmount
coins: cs(c("hard", 999999999999), c("ukava", 1)),
},
},
{
name: "when new indexes have an extra denom, rewards are calculated as if it was 0 in old indexes",
args: args{
oldIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.000000001"),
},
},
newIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("1000.0"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.100000001"),
},
},
sourceAmount: d("1000000000"),
},
expected: expected{
// for each denom: (new - old) * sourceAmount
coins: cs(c("hard", 999999999999), c("ukava", 100000001)),
},
},
{
name: "when new indexes are smaller than old, an error is returned",
args: args{
oldIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.2"),
},
},
newIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.1"),
},
},
sourceAmount: d("1000000000"),
},
expected: expected{
err: types.ErrDecreasingRewardFactor,
},
},
{
name: "when old indexes have an extra denom, an error is returned",
args: args{
oldIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.1"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.1"),
},
},
newIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.2"),
},
},
sourceAmount: d("1000000000"),
},
expected: expected{
err: types.ErrDecreasingRewardFactor,
},
},
{
name: "when old and new indexes are 0, rewards are 0",
args: args{
oldIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.0"),
},
},
newIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.0"),
},
},
sourceAmount: d("1000000000"),
},
expected: expected{
coins: nil,
},
},
{
name: "when old and new indexes are empty, rewards are 0",
args: args{
oldIndexes: types.RewardIndexes{},
newIndexes: nil,
sourceAmount: d("1000000000"),
},
expected: expected{
coins: nil,
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
coins, err := keeper.Keeper{}.CalculateRewards(tc.args.oldIndexes, tc.args.newIndexes, tc.args.sourceAmount)
if tc.expected.err != nil {
require.True(t, errors.Is(err, tc.expected.err))
} else {
require.Equal(t, tc.expected.coins, coins)
}
})
}
}
func TestCalculateSingleReward(t *testing.T) {
type expected struct {
err error
reward sdk.Int
}
type args struct {
oldIndex, newIndex sdk.Dec
sourceAmount sdk.Dec
}
testcases := []struct {
name string
args args
expected expected
}{
{
name: "when new index is > old, rewards are calculated correctly",
args: args{
oldIndex: d("0.000000001"),
newIndex: d("1000.0"),
sourceAmount: d("1000000000"),
},
expected: expected{
// (new - old) * sourceAmount
reward: i(999999999999),
},
},
{
name: "when new index is < old, an error is returned",
args: args{
oldIndex: d("0.000000001"),
newIndex: d("0.0"),
sourceAmount: d("1000000000"),
},
expected: expected{
err: types.ErrDecreasingRewardFactor,
},
},
{
name: "when old and new indexes are 0, rewards are 0",
args: args{
oldIndex: d("0.0"),
newIndex: d("0.0"),
sourceAmount: d("1000000000"),
},
expected: expected{
reward: sdk.ZeroInt(),
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
reward, err := keeper.Keeper{}.CalculateSingleReward(tc.args.oldIndex, tc.args.newIndex, tc.args.sourceAmount)
if tc.expected.err != nil {
require.True(t, errors.Is(err, tc.expected.err))
} else {
require.Equal(t, tc.expected.reward, reward)
}
})
}
}

3
x/incentive/keeper/rewards_borrow_test.go
View File

@ -61,7 +61,7 @@ func (suite *BorrowRewardsTestSuite) SetupWithGenState(authBuilder app.AuthGenes
authBuilder.BuildMarshalled(),
NewPricefeedGenStateMultiFromTime(suite.genesisTime),
hardBuilder.BuildMarshalled(),
NewCommitteeGenesisState(suite.addrs[:2]), // TODO add committee members to suite,
NewCommitteeGenesisState(suite.addrs[:2]),
incentBuilder.BuildMarshalled(),
)
}
@ -498,7 +498,6 @@ func (suite *BorrowRewardsTestSuite) TestSynchronizeHardBorrowReward() {
updatedTimeDuration: 86400,
},
},
// TODO test synchronize when there is a reward period with 0 rewardsPerSecond
}
for _, tc := range testCases {
suite.Run(tc.name, func() {

119
x/incentive/keeper/rewards_borrow_update_test.go Normal file
View File

@ -0,0 +1,119 @@
package keeper_test
import (
"testing"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// UpdateHardBorrowIndexDenomsTests runs unit tests for the keeper.UpdateHardBorrowIndexDenoms method
//
// inputs
// - claim in store if it exists (only claim.BorrowRewardIndexes)
// - global indexes in store
// - borrow function arg (only borrow.Amount)
//
// outputs
// - sets a claim
type UpdateHardBorrowIndexDenomsTests struct {
unitTester
}
func TestUpdateHardBorrowIndexDenoms(t *testing.T) {
suite.Run(t, new(UpdateHardBorrowIndexDenomsTests))
}
func (suite *UpdateHardBorrowIndexDenomsTests) TestClaimIndexesAreRemovedForDenomsNoLongerBorrowed() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalBorrowIndexes(claim.BorrowRewardIndexes)
// remove one denom from the indexes already in the borrow
expectedIndexes := claim.BorrowRewardIndexes[1:]
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(expectedIndexes)...),
}
suite.keeper.UpdateHardBorrowIndexDenoms(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(expectedIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *UpdateHardBorrowIndexDenomsTests) TestClaimIndexesAreAddedForNewlyBorrowedDenoms() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueMultiRewardIndex(claim.BorrowRewardIndexes)
suite.storeGlobalBorrowIndexes(globalIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.UpdateHardBorrowIndexDenoms(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *UpdateHardBorrowIndexDenomsTests) TestClaimIndexesAreUnchangedWhenBorrowedDenomsUnchanged() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
// Set global indexes with same denoms but different values.
// UpdateHardBorrowIndexDenoms should ignore the new values.
suite.storeGlobalBorrowIndexes(increaseAllRewardFactors(claim.BorrowRewardIndexes))
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(claim.BorrowRewardIndexes)...),
}
suite.keeper.UpdateHardBorrowIndexDenoms(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(claim.BorrowRewardIndexes, syncedClaim.BorrowRewardIndexes)
}
func (suite *UpdateHardBorrowIndexDenomsTests) TestEmptyClaimIndexesAreAddedForNewlyBorrowedButNotRewardedDenoms() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
BorrowRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalBorrowIndexes(claim.BorrowRewardIndexes)
// add a denom to the borrowed amount that is not in the global or claim's indexes
expectedIndexes := appendUniqueEmptyMultiRewardIndex(claim.BorrowRewardIndexes)
borrowedDenoms := extractCollateralTypes(expectedIndexes)
borrow := hardtypes.Borrow{
Borrower: claim.Owner,
Amount: arbitraryCoinsWithDenoms(borrowedDenoms...),
}
suite.keeper.UpdateHardBorrowIndexDenoms(suite.ctx, borrow)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(expectedIndexes, syncedClaim.BorrowRewardIndexes)
}

74
x/incentive/keeper/rewards_delegator.go
View File

@ -45,23 +45,21 @@ func (k Keeper) AccumulateHardDelegatorRewards(ctx sdk.Context, rewardPeriod typ
// InitializeHardDelegatorReward initializes the delegator reward index of a hard claim
func (k Keeper) InitializeHardDelegatorReward(ctx sdk.Context, delegator sdk.AccAddress) {
delegatorFactor, foundDelegatorFactor := k.GetHardDelegatorRewardFactor(ctx, types.BondDenom)
if !foundDelegatorFactor { // Should always be found...
delegatorFactor = sdk.ZeroDec()
}
delegatorRewardIndexes := types.NewRewardIndex(types.BondDenom, delegatorFactor)
claim, found := k.GetHardLiquidityProviderClaim(ctx, delegator)
if !found {
// Instantiate claim object
claim = types.NewHardLiquidityProviderClaim(delegator, sdk.Coins{}, nil, nil, nil)
} else {
k.SynchronizeHardDelegatorRewards(ctx, delegator, nil, false)
claim, _ = k.GetHardLiquidityProviderClaim(ctx, delegator)
}
claim.DelegatorRewardIndexes = types.RewardIndexes{delegatorRewardIndexes}
globalRewardFactor, found := k.GetHardDelegatorRewardFactor(ctx, types.BondDenom)
if !found {
// If there's no global delegator reward factor, initialize the claim with a delegator factor of zero.
globalRewardFactor = sdk.ZeroDec()
}
claim.DelegatorRewardIndexes = types.RewardIndexes{types.NewRewardIndex(types.BondDenom, globalRewardFactor)}
k.SetHardLiquidityProviderClaim(ctx, claim)
}
@ -74,23 +72,42 @@ func (k Keeper) SynchronizeHardDelegatorRewards(ctx sdk.Context, delegator sdk.A
return
}
delagatorFactor, found := k.GetHardDelegatorRewardFactor(ctx, types.BondDenom)
globalRewardFactor, found := k.GetHardDelegatorRewardFactor(ctx, types.BondDenom)
if !found {
// The global factor is only not found if
// - the bond denom has not started accumulating rewards yet (either there is no reward specified in params, or the reward start time hasn't been hit)
// - OR it was wrongly deleted from state (factors should never be removed while unsynced claims exist)
// If not found we could either skip this sync, or assume the global factor is zero.
// Skipping will avoid storing unnecessary factors in the claim for non rewarded denoms.
// And in the event a global factor is wrongly deleted, it will avoid this function panicking when calculating rewards.
return
}
delegatorIndex, hasDelegatorRewardIndex := claim.HasDelegatorRewardIndex(types.BondDenom)
if !hasDelegatorRewardIndex {
return
userRewardFactor, found := claim.DelegatorRewardIndexes.Get(types.BondDenom)
if !found {
// Normally the factor should always be found, as it is added in InitializeHardDelegatorReward when a user delegates.
// However if there were no delegator rewards (ie no reward period in params) then a reward period is added, existing claims will not have the factor.
// So assume the factor is the starting value for any global factor: 0.
userRewardFactor = sdk.ZeroDec()
}
userRewardFactor := claim.DelegatorRewardIndexes[delegatorIndex].RewardFactor
rewardsAccumulatedFactor := delagatorFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsNegative() {
panic(fmt.Sprintf("reward accumulation factor cannot be negative: %s", rewardsAccumulatedFactor))
}
claim.DelegatorRewardIndexes[delegatorIndex].RewardFactor = delagatorFactor
totalDelegated := k.GetTotalDelegated(ctx, delegator, valAddr, shouldIncludeValidator)
rewardsEarned, err := k.CalculateSingleReward(userRewardFactor, globalRewardFactor, totalDelegated)
if err != nil {
// Global reward factors should never decrease, as it would lead to a negative update to claim.Rewards.
// This panics if a global reward factor decreases or disappears between the old and new indexes.
panic(fmt.Sprintf("corrupted global reward indexes found: %v", err))
}
newRewardsCoin := sdk.NewCoin(types.HardLiquidityRewardDenom, rewardsEarned)
claim.Reward = claim.Reward.Add(newRewardsCoin)
claim.DelegatorRewardIndexes = claim.DelegatorRewardIndexes.With(types.BondDenom, globalRewardFactor)
k.SetHardLiquidityProviderClaim(ctx, claim)
}
func (k Keeper) GetTotalDelegated(ctx sdk.Context, delegator sdk.AccAddress, valAddr sdk.ValAddress, shouldIncludeValidator bool) sdk.Dec {
totalDelegated := sdk.ZeroDec()
delegations := k.stakingKeeper.GetDelegatorDelegations(ctx, delegator, 200)
@ -100,14 +117,16 @@ func (k Keeper) SynchronizeHardDelegatorRewards(ctx sdk.Context, delegator sdk.A
continue
}
if valAddr == nil {
// Delegators don't accumulate rewards if their validator is unbonded
if validator.GetStatus() != sdk.Bonded {
if validator.OperatorAddress.Equals(valAddr) {
if shouldIncludeValidator {
// do nothing, so the validator is included regardless of bonded status
} else {
// skip this validator
continue
}
} else {
if !shouldIncludeValidator && validator.OperatorAddress.Equals(valAddr) {
// ignore tokens delegated to the validator
// skip any not bonded validator
if validator.GetStatus() != sdk.Bonded {
continue
}
}
@ -122,10 +141,5 @@ func (k Keeper) SynchronizeHardDelegatorRewards(ctx sdk.Context, delegator sdk.A
}
totalDelegated = totalDelegated.Add(delegatedTokens)
}
rewardsEarned := rewardsAccumulatedFactor.Mul(totalDelegated).RoundInt()
// Add rewards to delegator's hard claim
newRewardsCoin := sdk.NewCoin(types.HardLiquidityRewardDenom, rewardsEarned)
claim.Reward = claim.Reward.Add(newRewardsCoin)
k.SetHardLiquidityProviderClaim(ctx, claim)
return totalDelegated
}

115
x/incentive/keeper/rewards_delegator_init_test.go Normal file
View File

@ -0,0 +1,115 @@
package keeper_test
import (
"testing"
sdk "github.com/cosmos/cosmos-sdk/types"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
"github.com/stretchr/testify/suite"
"github.com/kava-labs/kava/x/incentive/types"
)
// InitializeHardDelegatorRewardTests runs unit tests for the keeper.InitializeHardDelegatorReward method
//
// inputs
// - claim in store if it exists (only claim.DelegatorRewardIndexes)
// - global indexes in store
// - delegator function arg
//
// outputs
// - sets or creates a claim
type InitializeHardDelegatorRewardTests struct {
unitTester
}
func TestInitializeHardDelegatorReward(t *testing.T) {
suite.Run(t, new(InitializeHardDelegatorRewardTests))
}
func (suite *InitializeHardDelegatorRewardTests) storeGlobalDelegatorFactor(rewardIndexes types.RewardIndexes) {
factor := rewardIndexes[0]
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, factor.CollateralType, factor.RewardFactor)
}
func (suite *InitializeHardDelegatorRewardTests) TestClaimIndexesAreSetWhenClaimDoesNotExist() {
globalIndex := arbitraryDelegatorRewardIndexes
suite.storeGlobalDelegatorFactor(globalIndex)
delegator := arbitraryAddress()
suite.keeper.InitializeHardDelegatorReward(suite.ctx, delegator)
syncedClaim, f := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, delegator)
suite.True(f)
suite.Equal(globalIndex, syncedClaim.DelegatorRewardIndexes)
}
func (suite *InitializeHardDelegatorRewardTests) TestClaimIsSyncedAndIndexesAreSetWhenClaimDoesExist() {
validatorAddress := arbitraryValidatorAddress()
sk := fakeStakingKeeper{
delegations: stakingtypes.Delegations{{
ValidatorAddress: validatorAddress,
Shares: d("1000"),
}},
validators: stakingtypes.Validators{{
OperatorAddress: validatorAddress,
Status: sdk.Bonded,
Tokens: i(1000),
DelegatorShares: d("1000"),
}},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, sk)
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
DelegatorRewardIndexes: arbitraryDelegatorRewardIndexes,
}
suite.storeClaim(claim)
// Set the global factor to a value different to one in claim so
// we can detect if it is overwritten.
globalIndex := increaseRewardFactors(claim.DelegatorRewardIndexes)
suite.storeGlobalDelegatorFactor(globalIndex)
suite.keeper.InitializeHardDelegatorReward(suite.ctx, claim.Owner)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndex, syncedClaim.DelegatorRewardIndexes)
suite.Truef(syncedClaim.Reward.IsAllGT(claim.Reward), "'%s' not greater than '%s'", syncedClaim.Reward, claim.Reward)
}
// arbitraryDelegatorRewardIndexes contains only one reward index as there is only every one bond denom
var arbitraryDelegatorRewardIndexes = types.RewardIndexes{
types.NewRewardIndex(types.BondDenom, d("0.2")),
}
type fakeStakingKeeper struct {
delegations stakingtypes.Delegations
validators stakingtypes.Validators
}
func (k fakeStakingKeeper) TotalBondedTokens(ctx sdk.Context) sdk.Int {
panic("unimplemented")
}
func (k fakeStakingKeeper) GetDelegatorDelegations(ctx sdk.Context, delegator sdk.AccAddress, maxRetrieve uint16) []stakingtypes.Delegation {
return k.delegations
}
func (k fakeStakingKeeper) GetValidator(ctx sdk.Context, addr sdk.ValAddress) (stakingtypes.Validator, bool) {
for _, val := range k.validators {
if val.GetOperator().Equals(addr) {
return val, true
}
}
return stakingtypes.Validator{}, false
}
func (k fakeStakingKeeper) GetValidatorDelegations(ctx sdk.Context, valAddr sdk.ValAddress) []stakingtypes.Delegation {
var delegations stakingtypes.Delegations
for _, d := range k.delegations {
if d.ValidatorAddress.Equals(valAddr) {
delegations = append(delegations, d)
}
}
return delegations
}

356
x/incentive/keeper/rewards_delegator_sync_test.go Normal file
View File

@ -0,0 +1,356 @@
package keeper_test
import (
"testing"
sdk "github.com/cosmos/cosmos-sdk/types"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
"github.com/stretchr/testify/suite"
"github.com/kava-labs/kava/x/incentive/types"
)
// SynchronizeHardDelegatorRewardTests runs unit tests for the keeper.SynchronizeHardDelegatorReward method
//
// inputs
// - claim in store if it exists (only claim.DelegatorRewardIndexes and claim.Reward)
// - global index in store
// - function args: delegator address, validator address, shouldIncludeValidator flag
// - delegator's delegations and the corresponding validators
//
// outputs
// - sets or creates a claim
type SynchronizeHardDelegatorRewardTests struct {
unitTester
}
func TestSynchronizeHardDelegatorReward(t *testing.T) {
suite.Run(t, new(SynchronizeHardDelegatorRewardTests))
}
func (suite *SynchronizeHardDelegatorRewardTests) storeGlobalDelegatorFactor(rewardIndexes types.RewardIndexes) {
factor := rewardIndexes[0]
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, factor.CollateralType, factor.RewardFactor)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestClaimIndexesAreUnchangedWhenGlobalFactorUnchanged() {
delegator := arbitraryAddress()
stakingKeeper := fakeStakingKeeper{} // use an empty staking keeper that returns no delegations
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: delegator,
},
DelegatorRewardIndexes: arbitraryDelegatorRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalDelegatorFactor(claim.DelegatorRewardIndexes)
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, claim.Owner, nil, false)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(claim.DelegatorRewardIndexes, syncedClaim.DelegatorRewardIndexes)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestClaimIndexesAreUpdatedWhenGlobalFactorIncreased() {
delegator := arbitraryAddress()
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, fakeStakingKeeper{})
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: delegator,
},
DelegatorRewardIndexes: arbitraryDelegatorRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseRewardFactors(claim.DelegatorRewardIndexes)
suite.storeGlobalDelegatorFactor(globalIndexes)
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, claim.Owner, nil, false)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.DelegatorRewardIndexes)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestRewardIsUnchangedWhenGlobalFactorUnchanged() {
delegator := arbitraryAddress()
validatorAddress := arbitraryValidatorAddress()
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddress,
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddress),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: delegator,
Reward: arbitraryCoins(),
},
DelegatorRewardIndexes: types.RewardIndexes{{
CollateralType: types.BondDenom,
RewardFactor: d("0.1"),
}},
}
suite.storeClaim(claim)
suite.storeGlobalDelegatorFactor(claim.DelegatorRewardIndexes)
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, claim.Owner, nil, false)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(claim.Reward, syncedClaim.Reward)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestRewardIsIncreasedWhenNewRewardAdded() {
delegator := arbitraryAddress()
validatorAddress := arbitraryValidatorAddress()
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddress,
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddress),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: delegator,
Reward: arbitraryCoins(),
},
DelegatorRewardIndexes: types.RewardIndexes{},
}
suite.storeClaim(claim)
newGlobalIndexes := types.RewardIndexes{{
CollateralType: types.BondDenom,
RewardFactor: d("0.1"),
}}
suite.storeGlobalDelegatorFactor(newGlobalIndexes)
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, claim.Owner, nil, false)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(newGlobalIndexes, syncedClaim.DelegatorRewardIndexes)
suite.Equal(
cs(c(types.HardLiquidityRewardDenom, 100)).Add(claim.Reward...),
syncedClaim.Reward,
)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestRewardIsIncreasedWhenGlobalFactorIncreased() {
delegator := arbitraryAddress()
validatorAddress := arbitraryValidatorAddress()
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddress,
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddress),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: delegator,
Reward: arbitraryCoins(),
},
DelegatorRewardIndexes: types.RewardIndexes{{
CollateralType: types.BondDenom,
RewardFactor: d("0.1"),
}},
}
suite.storeClaim(claim)
suite.storeGlobalDelegatorFactor(
types.RewardIndexes{
types.NewRewardIndex(types.BondDenom, d("0.2")),
},
)
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, claim.Owner, nil, false)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c(types.HardLiquidityRewardDenom, 100)).Add(claim.Reward...),
syncedClaim.Reward,
)
}
func unslashedBondedValidator(address sdk.ValAddress) stakingtypes.Validator {
return stakingtypes.Validator{
OperatorAddress: address,
Status: sdk.Bonded,
// Set the tokens and shares equal so then
// a _delegator's_ token amount is equal to their shares amount
Tokens: i(1e12),
DelegatorShares: i(1e12).ToDec(),
}
}
func unslashedNotBondedValidator(address sdk.ValAddress) stakingtypes.Validator {
return stakingtypes.Validator{
OperatorAddress: address,
Status: sdk.Unbonding,
// Set the tokens and shares equal so then
// a _delegator's_ token amount is equal to their shares amount
Tokens: i(1e12),
DelegatorShares: i(1e12).ToDec(),
}
}
func (suite *SynchronizeHardDelegatorRewardTests) TestGetDelegatedWhenValAddrIsNil() {
// when valAddr is nil, get total delegated to bonded validators
delegator := arbitraryAddress()
validatorAddresses := generateValidatorAddresses(4)
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
//bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[0],
Shares: d("1"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[1],
Shares: d("10"),
},
// not bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[2],
Shares: d("100"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[3],
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddresses[0]),
unslashedBondedValidator(validatorAddresses[1]),
unslashedNotBondedValidator(validatorAddresses[2]),
unslashedNotBondedValidator(validatorAddresses[3]),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
suite.Equal(
d("11"), // delegation to bonded validators
suite.keeper.GetTotalDelegated(suite.ctx, delegator, nil, false),
)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestGetDelegatedWhenExcludingAValidator() {
// when valAddr is x, get total delegated to bonded validators excluding those to x
delegator := arbitraryAddress()
validatorAddresses := generateValidatorAddresses(4)
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
//bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[0],
Shares: d("1"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[1],
Shares: d("10"),
},
// not bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[2],
Shares: d("100"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[3],
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddresses[0]),
unslashedBondedValidator(validatorAddresses[1]),
unslashedNotBondedValidator(validatorAddresses[2]),
unslashedNotBondedValidator(validatorAddresses[3]),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
suite.Equal(
d("10"),
suite.keeper.GetTotalDelegated(suite.ctx, delegator, validatorAddresses[0], false),
)
}
func (suite *SynchronizeHardDelegatorRewardTests) TestGetDelegatedWhenIncludingAValidator() {
// when valAddr is x, get total delegated to bonded validators including those to x
delegator := arbitraryAddress()
validatorAddresses := generateValidatorAddresses(4)
stakingKeeper := fakeStakingKeeper{
delegations: stakingtypes.Delegations{
//bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[0],
Shares: d("1"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[1],
Shares: d("10"),
},
// not bonded
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[2],
Shares: d("100"),
},
{
DelegatorAddress: delegator,
ValidatorAddress: validatorAddresses[3],
Shares: d("1000"),
},
},
validators: stakingtypes.Validators{
unslashedBondedValidator(validatorAddresses[0]),
unslashedBondedValidator(validatorAddresses[1]),
unslashedNotBondedValidator(validatorAddresses[2]),
unslashedNotBondedValidator(validatorAddresses[3]),
},
}
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, stakingKeeper)
suite.Equal(
d("111"),
suite.keeper.GetTotalDelegated(suite.ctx, delegator, validatorAddresses[2], true),
)
}

102
x/incentive/keeper/rewards_supply.go
View File

@ -80,24 +80,20 @@ func (k Keeper) AccumulateHardSupplyRewards(ctx sdk.Context, rewardPeriod types.
// InitializeHardSupplyReward initializes the supply-side of a hard liquidity provider claim
// by creating the claim and setting the supply reward factor index
func (k Keeper) InitializeHardSupplyReward(ctx sdk.Context, deposit hardtypes.Deposit) {
var supplyRewardIndexes types.MultiRewardIndexes
for _, coin := range deposit.Amount {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardSupplyRewardIndexes(ctx, coin.Denom)
var multiRewardIndex types.MultiRewardIndex
if foundGlobalRewardIndexes {
multiRewardIndex = types.NewMultiRewardIndex(coin.Denom, globalRewardIndexes)
} else {
multiRewardIndex = types.NewMultiRewardIndex(coin.Denom, types.RewardIndexes{})
}
supplyRewardIndexes = append(supplyRewardIndexes, multiRewardIndex)
}
claim, found := k.GetHardLiquidityProviderClaim(ctx, deposit.Depositor)
if !found {
// Instantiate claim object
claim = types.NewHardLiquidityProviderClaim(deposit.Depositor, sdk.Coins{}, nil, nil, nil)
}
var supplyRewardIndexes types.MultiRewardIndexes
for _, coin := range deposit.Amount {
globalRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, coin.Denom)
if !found {
globalRewardIndexes = types.RewardIndexes{}
}
supplyRewardIndexes = supplyRewardIndexes.With(coin.Denom, globalRewardIndexes)
}
claim.SupplyRewardIndexes = supplyRewardIndexes
k.SetHardLiquidityProviderClaim(ctx, claim)
}
@ -111,50 +107,34 @@ func (k Keeper) SynchronizeHardSupplyReward(ctx sdk.Context, deposit hardtypes.D
}
for _, coin := range deposit.Amount {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardSupplyRewardIndexes(ctx, coin.Denom)
if !foundGlobalRewardIndexes {
globalRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, coin.Denom)
if !found {
// The global factor is only not found if
// - the supply denom has not started accumulating rewards yet (either there is no reward specified in params, or the reward start time hasn't been hit)
// - OR it was wrongly deleted from state (factors should never be removed while unsynced claims exist)
// If not found we could either skip this sync, or assume the global factor is zero.
// Skipping will avoid storing unnecessary factors in the claim for non rewarded denoms.
// And in the event a global factor is wrongly deleted, it will avoid this function panicking when calculating rewards.
continue
}
userMultiRewardIndex, foundUserMultiRewardIndex := claim.SupplyRewardIndexes.GetRewardIndex(coin.Denom)
if !foundUserMultiRewardIndex {
continue
userRewardIndexes, found := claim.SupplyRewardIndexes.Get(coin.Denom)
if !found {
// Normally the reward indexes should always be found.
// But if a denom was not rewarded then becomes rewarded (ie a reward period is added to params), then the indexes will be missing from claims for that supplied denom.
// So given the reward period was just added, assume the starting value for any global reward indexes, which is an empty slice.
userRewardIndexes = types.RewardIndexes{}
}
userRewardIndexIndex, foundUserRewardIndexIndex := claim.SupplyRewardIndexes.GetRewardIndexIndex(coin.Denom)
if !foundUserRewardIndexIndex {
continue
newRewards, err := k.CalculateRewards(userRewardIndexes, globalRewardIndexes, coin.Amount.ToDec())
if err != nil {
// Global reward factors should never decrease, as it would lead to a negative update to claim.Rewards.
// This panics if a global reward factor decreases or disappears between the old and new indexes.
panic(fmt.Sprintf("corrupted global reward indexes found: %v", err))
}
for _, globalRewardIndex := range globalRewardIndexes {
userRewardIndex, foundUserRewardIndex := userMultiRewardIndex.RewardIndexes.GetRewardIndex(globalRewardIndex.CollateralType)
if !foundUserRewardIndex {
// User deposited this coin type before it had rewards. When new rewards are added, legacy depositors
// should immediately begin earning rewards. Enable users to do so by updating their claim with the global
// reward index denom and start their reward factor at 0.0
userRewardIndex = types.NewRewardIndex(globalRewardIndex.CollateralType, sdk.ZeroDec())
userMultiRewardIndex.RewardIndexes = append(userMultiRewardIndex.RewardIndexes, userRewardIndex)
claim.SupplyRewardIndexes[userRewardIndexIndex] = userMultiRewardIndex
}
globalRewardFactor := globalRewardIndex.RewardFactor
userRewardFactor := userRewardIndex.RewardFactor
rewardsAccumulatedFactor := globalRewardFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsNegative() {
panic(fmt.Sprintf("reward accumulation factor cannot be negative: %s", rewardsAccumulatedFactor))
}
newRewardsAmount := rewardsAccumulatedFactor.Mul(deposit.Amount.AmountOf(coin.Denom).ToDec()).RoundInt()
factorIndex, foundFactorIndex := userMultiRewardIndex.RewardIndexes.GetFactorIndex(globalRewardIndex.CollateralType)
if !foundFactorIndex { // should never trigger, as we basically do this check at the start of this loop
continue
}
claim.SupplyRewardIndexes[userRewardIndexIndex].RewardIndexes[factorIndex].RewardFactor = globalRewardIndex.RewardFactor
newRewardsCoin := sdk.NewCoin(userRewardIndex.CollateralType, newRewardsAmount)
claim.Reward = claim.Reward.Add(newRewardsCoin)
}
claim.Reward = claim.Reward.Add(newRewards...)
claim.SupplyRewardIndexes = claim.SupplyRewardIndexes.With(coin.Denom, globalRewardIndexes)
}
k.SetHardLiquidityProviderClaim(ctx, claim)
}
@ -169,26 +149,22 @@ func (k Keeper) UpdateHardSupplyIndexDenoms(ctx sdk.Context, deposit hardtypes.D
depositDenoms := getDenoms(deposit.Amount)
supplyRewardIndexDenoms := claim.SupplyRewardIndexes.GetCollateralTypes()
uniqueDepositDenoms := setDifference(depositDenoms, supplyRewardIndexDenoms)
uniqueSupplyRewardDenoms := setDifference(supplyRewardIndexDenoms, depositDenoms)
supplyRewardIndexes := claim.SupplyRewardIndexes
// Create a new multi-reward index in the claim for every new deposit denom
uniqueDepositDenoms := setDifference(depositDenoms, supplyRewardIndexDenoms)
for _, denom := range uniqueDepositDenoms {
_, foundUserRewardIndexes := claim.SupplyRewardIndexes.GetRewardIndex(denom)
if !foundUserRewardIndexes {
globalSupplyRewardIndexes, foundGlobalSupplyRewardIndexes := k.GetHardSupplyRewardIndexes(ctx, denom)
var multiRewardIndex types.MultiRewardIndex
if foundGlobalSupplyRewardIndexes {
multiRewardIndex = types.NewMultiRewardIndex(denom, globalSupplyRewardIndexes)
} else {
multiRewardIndex = types.NewMultiRewardIndex(denom, types.RewardIndexes{})
}
supplyRewardIndexes = append(supplyRewardIndexes, multiRewardIndex)
globalSupplyRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, denom)
if !found {
globalSupplyRewardIndexes = types.RewardIndexes{}
}
supplyRewardIndexes = supplyRewardIndexes.With(denom, globalSupplyRewardIndexes)
}
// Delete multi-reward index from claim if the collateral type is no longer deposited
uniqueSupplyRewardDenoms := setDifference(supplyRewardIndexDenoms, depositDenoms)
for _, denom := range uniqueSupplyRewardDenoms {
supplyRewardIndexes = supplyRewardIndexes.RemoveRewardIndex(denom)
}

89
x/incentive/keeper/rewards_supply_init_test.go Normal file
View File

@ -0,0 +1,89 @@
package keeper_test
import (
"testing"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// InitializeHardSupplyRewardTests runs unit tests for the keeper.InitializeHardSupplyReward method
//
// inputs
// - claim in store if it exists (only claim.SupplyRewardIndexes)
// - global indexes in store
// - deposit function arg (only deposit.Amount)
//
// outputs
// - sets or creates a claim
type InitializeHardSupplyRewardTests struct {
unitTester
}
func TestInitializeHardSupplyReward(t *testing.T) {
suite.Run(t, new(InitializeHardSupplyRewardTests))
}
func (suite *InitializeHardSupplyRewardTests) TestClaimIndexesAreSetWhenClaimExists() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
// Indexes should always be empty when initialize is called.
// If initialize is called then the user must have repaid their deposit positions,
// which means UpdateHardSupplyIndexDenoms was called and should have remove indexes.
SupplyRewardIndexes: types.MultiRewardIndexes{},
}
suite.storeClaim(claim)
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.InitializeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *InitializeHardSupplyRewardTests) TestClaimIndexesAreSetWhenClaimDoesNotExist() {
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalSupplyIndexes(globalIndexes)
owner := arbitraryAddress()
deposit := hardtypes.Deposit{
Depositor: owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.InitializeHardSupplyReward(suite.ctx, deposit)
syncedClaim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, owner)
suite.True(found)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *InitializeHardSupplyRewardTests) TestClaimIndexesAreSetEmptyForMissingIndexes() {
globalIndexes := nonEmptyMultiRewardIndexes
suite.storeGlobalSupplyIndexes(globalIndexes)
owner := arbitraryAddress()
// Supply a denom that is not in the global indexes.
// This happens when a deposit denom has no rewards associated with it.
expectedIndexes := appendUniqueEmptyMultiRewardIndex(globalIndexes)
depositedDenoms := extractCollateralTypes(expectedIndexes)
deposit := hardtypes.Deposit{
Depositor: owner,
Amount: arbitraryCoinsWithDenoms(depositedDenoms...),
}
suite.keeper.InitializeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, owner)
suite.Equal(expectedIndexes, syncedClaim.SupplyRewardIndexes)
}

303
x/incentive/keeper/rewards_supply_sync_test.go Normal file
View File

@ -0,0 +1,303 @@
package keeper_test
import (
"testing"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// SynchronizeHardSupplyRewardTests runs unit tests for the keeper.SynchronizeHardSupplyReward method
//
// inputs
// - claim in store (only claim.SupplyRewardIndexes, claim.Reward)
// - global indexes in store
// - deposit function arg (only deposit.Amount)
//
// outputs
// - sets a claim
type SynchronizeHardSupplyRewardTests struct {
unitTester
}
func TestSynchronizeHardSupplyReward(t *testing.T) {
suite.Run(t, new(SynchronizeHardSupplyRewardTests))
}
func (suite *SynchronizeHardSupplyRewardTests) TestClaimIndexesAreUpdatedWhenGlobalIndexesHaveIncreased() {
// This is the normal case
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseAllRewardFactors(nonEmptyMultiRewardIndexes)
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(claim.SupplyRewardIndexes)...),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *SynchronizeHardSupplyRewardTests) TestClaimIndexesAreUnchangedWhenGlobalIndexesUnchanged() {
// It should be safe to call SynchronizeHardSupplyReward multiple times
unchangingIndexes := nonEmptyMultiRewardIndexes
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: unchangingIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalSupplyIndexes(unchangingIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(unchangingIndexes)...),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(unchangingIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *SynchronizeHardSupplyRewardTests) TestClaimIndexesAreUpdatedWhenNewRewardAdded() {
// When a new reward is added (via gov) for a hard deposit denom the user has already deposited, and the claim is synced;
// Then the new reward's index should be added to the claim.
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueMultiRewardIndex(nonEmptyMultiRewardIndexes)
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *SynchronizeHardSupplyRewardTests) TestClaimIndexesAreUpdatedWhenNewRewardDenomAdded() {
// When a new reward coin is added (via gov) to an already rewarded deposit denom (that the user has already deposited), and the claim is synced;
// Then the new reward coin's index should be added to the claim.
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueRewardIndexToFirstItem(nonEmptyMultiRewardIndexes)
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *SynchronizeHardSupplyRewardTests) TestRewardIsIncrementedWhenGlobalIndexesHaveIncreased() {
// This is the normal case
// Given some time has passed (meaning the global indexes have increased)
// When the claim is synced
// The user earns rewards for the time passed
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
SupplyRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "depositdenom",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "rewarddenom",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
suite.storeGlobalSupplyIndexes(types.MultiRewardIndexes{
{
CollateralType: "depositdenom",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "rewarddenom",
RewardFactor: d("2000.002"),
},
},
},
})
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: cs(c("depositdenom", 1e9)),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
// new reward is (new index - old index) * deposit amount
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("rewarddenom", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}
func (suite *SynchronizeHardSupplyRewardTests) TestRewardIsIncrementedWhenNewRewardAdded() {
// When a new reward is added (via gov) for a hard deposit denom the user has already deposited, and the claim is synced
// Then the user earns rewards for the time since the reward was added
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
SupplyRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "rewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
globalIndexes := types.MultiRewardIndexes{
{
CollateralType: "rewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("2000.002"),
},
},
},
{
CollateralType: "newlyrewarded",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "otherreward",
// Indexes start at 0 when the reward is added by gov,
// so this represents the syncing happening some time later.
RewardFactor: d("1000.001"),
},
},
},
}
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: cs(c("rewarded", 1e9), c("newlyrewarded", 1e9)),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
// new reward is (new index - old index) * deposit amount for each deposited denom
// The old index for `newlyrewarded` isn't in the claim, so it's added starting at 0 for calculating the reward.
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("otherreward", 1_000_001_000_000), c("reward", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}
func (suite *SynchronizeHardSupplyRewardTests) TestRewardIsIncrementedWhenNewRewardDenomAdded() {
// When a new reward coin is added (via gov) to an already rewarded deposit denom (that the user has already deposited), and the claim is synced;
// Then the user earns rewards for the time since the reward was added
originalReward := arbitraryCoins()
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
Reward: originalReward,
},
SupplyRewardIndexes: types.MultiRewardIndexes{
{
CollateralType: "deposited",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("1000.001"),
},
},
},
},
}
suite.storeClaim(claim)
globalIndexes := types.MultiRewardIndexes{
{
CollateralType: "deposited",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "reward",
RewardFactor: d("2000.002"),
},
{
CollateralType: "otherreward",
// Indexes start at 0 when the reward is added by gov,
// so this represents the syncing happening some time later.
RewardFactor: d("1000.001"),
},
},
},
}
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: cs(c("deposited", 1e9)),
}
suite.keeper.SynchronizeHardSupplyReward(suite.ctx, deposit)
// new reward is (new index - old index) * deposit amount for each deposited denom
// The old index for `otherreward` isn't in the claim, so it's added starting at 0 for calculating the reward.
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(
cs(c("reward", 1_000_001_000_000), c("otherreward", 1_000_001_000_000)).Add(originalReward...),
syncedClaim.Reward,
)
}

3
x/incentive/keeper/rewards_supply_test.go
View File

@ -61,7 +61,7 @@ func (suite *SupplyRewardsTestSuite) SetupWithGenState(authBuilder app.AuthGenes
authBuilder.BuildMarshalled(),
NewPricefeedGenStateMultiFromTime(suite.genesisTime),
hardBuilder.BuildMarshalled(),
NewCommitteeGenesisState(suite.addrs[:2]), // TODO add committee members to suite
NewCommitteeGenesisState(suite.addrs[:2]),
incentBuilder.BuildMarshalled(),
)
}
@ -498,7 +498,6 @@ func (suite *SupplyRewardsTestSuite) TestSynchronizeHardSupplyReward() {
updatedTimeDuration: 86400,
},
},
// TODO test synchronize when there is a reward period with 0 rewardsPerSecond
}
for _, tc := range testCases {
suite.Run(tc.name, func() {

119
x/incentive/keeper/rewards_supply_update_test.go Normal file
View File

@ -0,0 +1,119 @@
package keeper_test
import (
"testing"
"github.com/stretchr/testify/suite"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// UpdateHardSupplyIndexDenomsTests runs unit tests for the keeper.UpdateHardSupplyIndexDenoms method
//
// inputs
// - claim in store if it exists (only claim.SupplyRewardIndexes)
// - global indexes in store
// - deposit function arg (only deposit.Amount)
//
// outputs
// - sets a claim
type UpdateHardSupplyIndexDenomsTests struct {
unitTester
}
func TestUpdateHardSupplyIndexDenoms(t *testing.T) {
suite.Run(t, new(UpdateHardSupplyIndexDenomsTests))
}
func (suite *UpdateHardSupplyIndexDenomsTests) TestClaimIndexesAreRemovedForDenomsNoLongerSupplied() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalSupplyIndexes(claim.SupplyRewardIndexes)
// remove one denom from the indexes already in the deposit
expectedIndexes := claim.SupplyRewardIndexes[1:]
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(expectedIndexes)...),
}
suite.keeper.UpdateHardSupplyIndexDenoms(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(expectedIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *UpdateHardSupplyIndexDenomsTests) TestClaimIndexesAreAddedForNewlySuppliedDenoms() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := appendUniqueMultiRewardIndex(claim.SupplyRewardIndexes)
suite.storeGlobalSupplyIndexes(globalIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(globalIndexes)...),
}
suite.keeper.UpdateHardSupplyIndexDenoms(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(globalIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *UpdateHardSupplyIndexDenomsTests) TestClaimIndexesAreUnchangedWhenSuppliedDenomsUnchanged() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
// Set global indexes with same denoms but different values.
// UpdateHardSupplyIndexDenoms should ignore the new values.
suite.storeGlobalSupplyIndexes(increaseAllRewardFactors(claim.SupplyRewardIndexes))
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(extractCollateralTypes(claim.SupplyRewardIndexes)...),
}
suite.keeper.UpdateHardSupplyIndexDenoms(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(claim.SupplyRewardIndexes, syncedClaim.SupplyRewardIndexes)
}
func (suite *UpdateHardSupplyIndexDenomsTests) TestEmptyClaimIndexesAreAddedForNewlySuppliedButNotRewardedDenoms() {
claim := types.HardLiquidityProviderClaim{
BaseMultiClaim: types.BaseMultiClaim{
Owner: arbitraryAddress(),
},
SupplyRewardIndexes: nonEmptyMultiRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalSupplyIndexes(claim.SupplyRewardIndexes)
// add a denom to the deposited amount that is not in the global or claim's indexes
expectedIndexes := appendUniqueEmptyMultiRewardIndex(claim.SupplyRewardIndexes)
depositedDenoms := extractCollateralTypes(expectedIndexes)
deposit := hardtypes.Deposit{
Depositor: claim.Owner,
Amount: arbitraryCoinsWithDenoms(depositedDenoms...),
}
suite.keeper.UpdateHardSupplyIndexDenoms(suite.ctx, deposit)
syncedClaim, _ := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, claim.Owner)
suite.Equal(expectedIndexes, syncedClaim.SupplyRewardIndexes)
}

87
x/incentive/keeper/rewards_usdx.go
View File

@ -1,6 +1,8 @@
package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
cdptypes "github.com/kava-labs/kava/x/cdp/types"
@ -55,66 +57,61 @@ func (k Keeper) InitializeUSDXMintingClaim(ctx sdk.Context, cdp cdptypes.CDP) {
// this collateral type is not incentivized, do nothing
return
}
rewardFactor, found := k.GetUSDXMintingRewardFactor(ctx, cdp.Type)
if !found {
rewardFactor = sdk.ZeroDec()
}
claim, found := k.GetUSDXMintingClaim(ctx, cdp.Owner)
if !found { // this is the owner's first usdx minting reward claim
claim = types.NewUSDXMintingClaim(cdp.Owner, sdk.NewCoin(types.USDXMintingRewardDenom, sdk.ZeroInt()), types.RewardIndexes{types.NewRewardIndex(cdp.Type, rewardFactor)})
k.SetUSDXMintingClaim(ctx, claim)
return
claim = types.NewUSDXMintingClaim(cdp.Owner, sdk.NewCoin(types.USDXMintingRewardDenom, sdk.ZeroInt()), types.RewardIndexes{})
}
// the owner has an existing usdx minting reward claim
index, hasRewardIndex := claim.HasRewardIndex(cdp.Type)
if !hasRewardIndex { // this is the owner's first usdx minting reward for this collateral type
claim.RewardIndexes = append(claim.RewardIndexes, types.NewRewardIndex(cdp.Type, rewardFactor))
} else { // the owner has a previous usdx minting reward for this collateral type
claim.RewardIndexes[index] = types.NewRewardIndex(cdp.Type, rewardFactor)
}
k.SetUSDXMintingClaim(ctx, claim)
}
// SynchronizeUSDXMintingReward updates the claim object by adding any accumulated rewards and updating the reward index value.
// this should be called before a cdp is modified, immediately after the 'SynchronizeInterest' method is called in the cdp module
func (k Keeper) SynchronizeUSDXMintingReward(ctx sdk.Context, cdp cdptypes.CDP) {
_, found := k.GetUSDXMintingRewardPeriod(ctx, cdp.Type)
if !found {
// this collateral type is not incentivized, do nothing
return
}
globalRewardFactor, found := k.GetUSDXMintingRewardFactor(ctx, cdp.Type)
if !found {
globalRewardFactor = sdk.ZeroDec()
}
claim.RewardIndexes = claim.RewardIndexes.With(cdp.Type, globalRewardFactor)
k.SetUSDXMintingClaim(ctx, claim)
}
// SynchronizeUSDXMintingReward updates the claim object by adding any accumulated rewards and updating the reward index value.
// this should be called before a cdp is modified.
func (k Keeper) SynchronizeUSDXMintingReward(ctx sdk.Context, cdp cdptypes.CDP) {
globalRewardFactor, found := k.GetUSDXMintingRewardFactor(ctx, cdp.Type)
if !found {
// The global factor is only not found if
// - the cdp collateral type has not started accumulating rewards yet (either there is no reward specified in params, or the reward start time hasn't been hit)
// - OR it was wrongly deleted from state (factors should never be removed while unsynced claims exist)
// If not found we could either skip this sync, or assume the global factor is zero.
// Skipping will avoid storing unnecessary factors in the claim for non rewarded denoms.
// And in the event a global factor is wrongly deleted, it will avoid this function panicking when calculating rewards.
return
}
claim, found := k.GetUSDXMintingClaim(ctx, cdp.Owner)
if !found {
claim = types.NewUSDXMintingClaim(cdp.Owner, sdk.NewCoin(types.USDXMintingRewardDenom, sdk.ZeroInt()), types.RewardIndexes{types.NewRewardIndex(cdp.Type, globalRewardFactor)})
k.SetUSDXMintingClaim(ctx, claim)
return
claim = types.NewUSDXMintingClaim(
cdp.Owner,
sdk.NewCoin(types.USDXMintingRewardDenom, sdk.ZeroInt()),
types.RewardIndexes{},
)
}
// the owner has an existing usdx minting reward claim
index, hasRewardIndex := claim.HasRewardIndex(cdp.Type)
if !hasRewardIndex { // this is the owner's first usdx minting reward for this collateral type
claim.RewardIndexes = append(claim.RewardIndexes, types.NewRewardIndex(cdp.Type, globalRewardFactor))
k.SetUSDXMintingClaim(ctx, claim)
return
userRewardFactor, found := claim.RewardIndexes.Get(cdp.Type)
if !found {
// Normally the factor should always be found, as it is added when the cdp is created in InitializeUSDXMintingClaim.
// However if a cdp type is not rewarded then becomes rewarded (ie a reward period is added to params), existing cdps will not have the factor in their claims.
// So assume the factor is the starting value for any global factor: 0.
userRewardFactor = sdk.ZeroDec()
}
userRewardFactor := claim.RewardIndexes[index].RewardFactor
rewardsAccumulatedFactor := globalRewardFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsZero() {
return
}
claim.RewardIndexes[index].RewardFactor = globalRewardFactor
newRewardsAmount := rewardsAccumulatedFactor.Mul(cdp.GetTotalPrincipal().Amount.ToDec()).RoundInt()
if newRewardsAmount.IsZero() {
k.SetUSDXMintingClaim(ctx, claim)
return
newRewardsAmount, err := k.CalculateSingleReward(userRewardFactor, globalRewardFactor, cdp.GetTotalPrincipal().Amount.ToDec())
if err != nil {
// Global reward factors should never decrease, as it would lead to a negative update to claim.Rewards.
// This panics if a global reward factor decreases or disappears between the old and new indexes.
panic(fmt.Sprintf("corrupted global reward indexes found: %v", err))
}
newRewardsCoin := sdk.NewCoin(types.USDXMintingRewardDenom, newRewardsAmount)
claim.Reward = claim.Reward.Add(newRewardsCoin)
claim.RewardIndexes = claim.RewardIndexes.With(cdp.Type, globalRewardFactor)
k.SetUSDXMintingClaim(ctx, claim)
}

311
x/incentive/keeper/rewards_usdx_unit_test.go Normal file
View File

@ -0,0 +1,311 @@
package keeper_test
import (
"testing"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/stretchr/testify/suite"
cdptypes "github.com/kava-labs/kava/x/cdp/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// usdxRewardsUnitTester contains common methods for running unit tests for keeper methods related to the USDX minting rewards
type usdxRewardsUnitTester struct {
unitTester
}
func (suite *usdxRewardsUnitTester) storeGlobalUSDXIndexes(indexes types.RewardIndexes) {
for _, ri := range indexes {
suite.keeper.SetUSDXMintingRewardFactor(suite.ctx, ri.CollateralType, ri.RewardFactor)
}
}
func (suite *usdxRewardsUnitTester) storeClaim(claim types.USDXMintingClaim) {
suite.keeper.SetUSDXMintingClaim(suite.ctx, claim)
}
type InitializeUSDXMintingClaimTests struct {
usdxRewardsUnitTester
}
func TestInitializeUSDXMintingClaims(t *testing.T) {
suite.Run(t, new(InitializeUSDXMintingClaimTests))
}
func (suite *InitializeUSDXMintingClaimTests) TestClaimIndexIsSetWhenClaimDoesNotExist() {
collateralType := "bnb-a"
subspace := paramsWithSingleUSDXRewardPeriod(collateralType)
suite.keeper = suite.NewKeeper(subspace, nil, nil, nil, nil, nil)
cdp := NewCDPBuilder(arbitraryAddress(), collateralType).Build()
globalIndexes := types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.2"),
}}
suite.storeGlobalUSDXIndexes(globalIndexes)
suite.keeper.InitializeUSDXMintingClaim(suite.ctx, cdp)
syncedClaim, f := suite.keeper.GetUSDXMintingClaim(suite.ctx, cdp.Owner)
suite.True(f)
suite.Equal(globalIndexes, syncedClaim.RewardIndexes)
}
func (suite *InitializeUSDXMintingClaimTests) TestClaimIndexIsSetWhenClaimExists() {
collateralType := "bnb-a"
subspace := paramsWithSingleUSDXRewardPeriod(collateralType)
suite.keeper = suite.NewKeeper(subspace, nil, nil, nil, nil, nil)
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
},
RewardIndexes: types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.1"),
}},
}
suite.storeClaim(claim)
globalIndexes := types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.2"),
}}
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).Build()
suite.keeper.InitializeUSDXMintingClaim(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, cdp.Owner)
suite.Equal(globalIndexes, syncedClaim.RewardIndexes)
}
type SynchronizeUSDXMintingRewardTests struct {
usdxRewardsUnitTester
}
func TestSynchronizeUSDXMintingReward(t *testing.T) {
suite.Run(t, new(SynchronizeUSDXMintingRewardTests))
}
func (suite *SynchronizeUSDXMintingRewardTests) TestRewardUnchangedWhenGlobalIndexesUnchanged() {
unchangingRewardIndexes := nonEmptyRewardIndexes
collateralType := extractFirstCollateralType(unchangingRewardIndexes)
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: unchangingRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalUSDXIndexes(unchangingRewardIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).WithPrincipal(i(1e12)).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
suite.Equal(claim.Reward, syncedClaim.Reward)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestRewardIsIncrementedWhenGlobalIndexIncreased() {
collateralType := "bnb-a"
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: types.RewardIndexes{
{
CollateralType: collateralType,
RewardFactor: d("0.1"),
},
},
}
suite.storeClaim(claim)
globalIndexes := types.RewardIndexes{
{
CollateralType: collateralType,
RewardFactor: d("0.2"),
},
}
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).WithPrincipal(i(1e12)).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// reward is ( new index - old index ) * cdp.TotalPrincipal
suite.Equal(c(types.USDXMintingRewardDenom, 1e11), syncedClaim.Reward)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestRewardIsIncrementedWhenNewRewardAddedAndClaimDoesNotExit() {
collateralType := "bnb-a"
globalIndexes := types.RewardIndexes{
{
CollateralType: collateralType,
RewardFactor: d("0.2"),
},
}
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(arbitraryAddress(), collateralType).WithPrincipal(i(1e12)).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, cdp.Owner)
// The global index was not around when this cdp was created as it was not stored in a claim.
// Therefore it must have been added via params after.
// To include rewards since the params were updated, the old index should be assumed to be 0.
// reward is ( new index - old index ) * cdp.TotalPrincipal
suite.Equal(c(types.USDXMintingRewardDenom, 2e11), syncedClaim.Reward)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIndexIsUpdatedWhenGlobalIndexIncreased() {
claimsRewardIndexes := nonEmptyRewardIndexes
collateralType := extractFirstCollateralType(claimsRewardIndexes)
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseRewardFactors(claimsRewardIndexes)
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// Only the claim's index for `collateralType` should have been changed
i, _ := globalIndexes.Get(collateralType)
expectedIndexes := claimsRewardIndexes.With(collateralType, i)
suite.Equal(expectedIndexes, syncedClaim.RewardIndexes)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIndexIsUpdatedWhenNewRewardAddedAndClaimAlreadyExists() {
claimsRewardIndexes := types.RewardIndexes{
{
CollateralType: "bnb-a",
RewardFactor: d("0.1"),
},
{
CollateralType: "busd-b",
RewardFactor: d("0.4"),
},
}
newRewardIndex := types.NewRewardIndex("xrp-a", d("0.0001"))
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseRewardFactors(claimsRewardIndexes)
globalIndexes = append(globalIndexes, newRewardIndex)
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, newRewardIndex.CollateralType).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// Only the claim's index for `collateralType` should have been changed
expectedIndexes := claimsRewardIndexes.With(newRewardIndex.CollateralType, newRewardIndex.RewardFactor)
suite.Equal(expectedIndexes, syncedClaim.RewardIndexes)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIsUnchangedWhenGlobalFactorMissing() {
claimsRewardIndexes := nonEmptyRewardIndexes
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
// don't store any reward indexes
// create a cdp with collateral type that doesn't exist in the claim's indexes, and does not have a corresponding global factor
cdp := NewCDPBuilder(claim.Owner, "unrewardedcollateral").WithPrincipal(i(1e12)).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
suite.Equal(claim.RewardIndexes, syncedClaim.RewardIndexes)
suite.Equal(claim.Reward, syncedClaim.Reward)
}
type cdpBuilder struct {
cdptypes.CDP
}
func NewCDPBuilder(owner sdk.AccAddress, collateralType string) cdpBuilder {
return cdpBuilder{
CDP: cdptypes.CDP{
Owner: owner,
Type: collateralType,
// The zero value of Principal and AccumulatedFees (type sdk.Coin) is invalid as the denom is ""
// Set them to the default denom, but with 0 amount.
Principal: c(cdptypes.DefaultStableDenom, 0),
AccumulatedFees: c(cdptypes.DefaultStableDenom, 0),
}}
}
func (builder cdpBuilder) Build() cdptypes.CDP { return builder.CDP }
func (builder cdpBuilder) WithPrincipal(principal sdk.Int) cdpBuilder {
builder.Principal = sdk.NewCoin(cdptypes.DefaultStableDenom, principal)
return builder
}
var nonEmptyRewardIndexes = types.RewardIndexes{
{
CollateralType: "bnb-a",
RewardFactor: d("0.1"),
},
{
CollateralType: "busd-b",
RewardFactor: d("0.4"),
},
}
func paramsWithSingleUSDXRewardPeriod(collateralType string) types.ParamSubspace {
return &fakeParamSubspace{
params: types.Params{
USDXMintingRewardPeriods: types.RewardPeriods{
{
CollateralType: collateralType,
},
},
},
}
}
func extractFirstCollateralType(indexes types.RewardIndexes) string {
if len(indexes) == 0 {
panic("cannot extract a collateral type from 0 length RewardIndexes")
}
return indexes[0].CollateralType
}

248
x/incentive/keeper/unit_test.go Normal file
View File

@ -0,0 +1,248 @@
package keeper_test
import (
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/store"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/params"
"github.com/stretchr/testify/suite"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/log"
db "github.com/tendermint/tm-db"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/x/incentive/keeper"
"github.com/kava-labs/kava/x/incentive/types"
)
// NewTestContext sets up a basic context with an in-memory db
func NewTestContext(requiredStoreKeys ...sdk.StoreKey) sdk.Context {
memDB := db.NewMemDB()
cms := store.NewCommitMultiStore(memDB)
for _, key := range requiredStoreKeys {
cms.MountStoreWithDB(key, sdk.StoreTypeIAVL, nil)
}
cms.LoadLatestVersion()
return sdk.NewContext(cms, abci.Header{}, false, log.NewNopLogger())
}
// unitTester is a wrapper around suite.Suite, with common functionality for keeper unit tests.
// It can be embedded in structs the same way as suite.Suite.
type unitTester struct {
suite.Suite
keeper keeper.Keeper
ctx sdk.Context
cdc *codec.Codec
incentiveStoreKey sdk.StoreKey
}
func (suite *unitTester) SetupSuite() {
suite.cdc = app.MakeCodec()
suite.incentiveStoreKey = sdk.NewKVStoreKey(types.StoreKey)
}
func (suite *unitTester) SetupTest() {
suite.ctx = NewTestContext(suite.incentiveStoreKey)
suite.keeper = suite.NewKeeper(&fakeParamSubspace{}, nil, nil, nil, nil, nil)
}
func (suite *unitTester) TearDownTest() {
suite.keeper = keeper.Keeper{}
suite.ctx = sdk.Context{}
}
func (suite *unitTester) NewKeeper(paramSubspace types.ParamSubspace, sk types.SupplyKeeper, cdpk types.CdpKeeper, hk types.HardKeeper, ak types.AccountKeeper, stk types.StakingKeeper) keeper.Keeper {
return keeper.NewKeeper(suite.cdc, suite.incentiveStoreKey, paramSubspace, sk, cdpk, hk, ak, stk)
}
func (suite *unitTester) storeGlobalBorrowIndexes(indexes types.MultiRewardIndexes) {
for _, i := range indexes {
suite.keeper.SetHardBorrowRewardIndexes(suite.ctx, i.CollateralType, i.RewardIndexes)
}
}
func (suite *unitTester) storeGlobalSupplyIndexes(indexes types.MultiRewardIndexes) {
for _, i := range indexes {
suite.keeper.SetHardSupplyRewardIndexes(suite.ctx, i.CollateralType, i.RewardIndexes)
}
}
func (suite *unitTester) storeClaim(claim types.HardLiquidityProviderClaim) {
suite.keeper.SetHardLiquidityProviderClaim(suite.ctx, claim)
}
type fakeParamSubspace struct {
params types.Params
}
func (subspace *fakeParamSubspace) GetParamSet(_ sdk.Context, ps params.ParamSet) {
*(ps.(*types.Params)) = subspace.params
}
func (subspace *fakeParamSubspace) SetParamSet(_ sdk.Context, ps params.ParamSet) {
subspace.params = *(ps.(*types.Params))
}
func (subspace *fakeParamSubspace) HasKeyTable() bool {
// return true so the keeper does no try to set the key table, which does nothing
return true
}
func (subspace *fakeParamSubspace) WithKeyTable(params.KeyTable) params.Subspace {
// return an non-functional subspace to satisfy the interface
return params.Subspace{}
}
func arbitraryCoin() sdk.Coin {
return c("hard", 1e9)
}
func arbitraryCoins() sdk.Coins {
return cs(c("btcb", 1))
}
func arbitraryCoinsWithDenoms(denom ...string) sdk.Coins {
const arbitraryAmount = 1 // must be > 0 as sdk.Coins type only stores positive amounts
coins := sdk.NewCoins()
for _, d := range denom {
coins = coins.Add(sdk.NewInt64Coin(d, arbitraryAmount))
}
return coins
}
func arbitraryAddress() sdk.AccAddress {
_, addresses := app.GeneratePrivKeyAddressPairs(1)
return addresses[0]
}
func arbitraryValidatorAddress() sdk.ValAddress {
return generateValidatorAddresses(1)[0]
}
func generateValidatorAddresses(n int) []sdk.ValAddress {
_, addresses := app.GeneratePrivKeyAddressPairs(n)
var valAddresses []sdk.ValAddress
for _, a := range addresses {
valAddresses = append(valAddresses, sdk.ValAddress(a))
}
return valAddresses
}
var nonEmptyMultiRewardIndexes = types.MultiRewardIndexes{
{
CollateralType: "bnb",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.02"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.04"),
},
},
},
{
CollateralType: "btcb",
RewardIndexes: types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.2"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.4"),
},
},
},
}
func extractCollateralTypes(indexes types.MultiRewardIndexes) []string {
var denoms []string
for _, ri := range indexes {
denoms = append(denoms, ri.CollateralType)
}
return denoms
}
func increaseAllRewardFactors(indexes types.MultiRewardIndexes) types.MultiRewardIndexes {
increasedIndexes := make(types.MultiRewardIndexes, len(indexes))
copy(increasedIndexes, indexes)
for i := range increasedIndexes {
increasedIndexes[i].RewardIndexes = increaseRewardFactors(increasedIndexes[i].RewardIndexes)
}
return increasedIndexes
}
func increaseRewardFactors(indexes types.RewardIndexes) types.RewardIndexes {
increasedIndexes := make(types.RewardIndexes, len(indexes))
copy(increasedIndexes, indexes)
for i := range increasedIndexes {
increasedIndexes[i].RewardFactor = increasedIndexes[i].RewardFactor.MulInt64(2)
}
return increasedIndexes
}
func appendUniqueMultiRewardIndex(indexes types.MultiRewardIndexes) types.MultiRewardIndexes {
const uniqueDenom = "uniquedenom"
for _, mri := range indexes {
if mri.CollateralType == uniqueDenom {
panic(fmt.Sprintf("tried to add unique multi reward index with denom '%s', but denom already existed", uniqueDenom))
}
}
return append(indexes, types.NewMultiRewardIndex(
uniqueDenom,
types.RewardIndexes{
{
CollateralType: "hard",
RewardFactor: d("0.02"),
},
{
CollateralType: "ukava",
RewardFactor: d("0.04"),
},
},
),
)
}
func appendUniqueEmptyMultiRewardIndex(indexes types.MultiRewardIndexes) types.MultiRewardIndexes {
const uniqueDenom = "uniquedenom"
for _, mri := range indexes {
if mri.CollateralType == uniqueDenom {
panic(fmt.Sprintf("tried to add unique multi reward index with denom '%s', but denom already existed", uniqueDenom))
}
}
return append(indexes, types.NewMultiRewardIndex(uniqueDenom, nil))
}
func appendUniqueRewardIndexToFirstItem(indexes types.MultiRewardIndexes) types.MultiRewardIndexes {
newIndexes := make(types.MultiRewardIndexes, len(indexes))
copy(newIndexes, indexes)
newIndexes[0].RewardIndexes = appendUniqueRewardIndex(newIndexes[0].RewardIndexes)
return newIndexes
}
func appendUniqueRewardIndex(indexes types.RewardIndexes) types.RewardIndexes {
const uniqueDenom = "uniquereward"
for _, mri := range indexes {
if mri.CollateralType == uniqueDenom {
panic(fmt.Sprintf("tried to add unique reward index with denom '%s', but denom already existed", uniqueDenom))
}
}
return append(
indexes,
types.NewRewardIndex(uniqueDenom, d("0.02")),
)
}

58
x/incentive/types/claims.go
View File

@ -402,6 +402,30 @@ func (ris RewardIndexes) GetRewardIndex(denom string) (RewardIndex, bool) {
return RewardIndex{}, false
}
// Get fetches a RewardFactor by it's denom
func (ris RewardIndexes) Get(denom string) (sdk.Dec, bool) {
for _, ri := range ris {
if ri.CollateralType == denom {
return ri.RewardFactor, true
}
}
return sdk.Dec{}, false
}
// With returns a copy of the indexes with a new reward factor added
func (ris RewardIndexes) With(denom string, factor sdk.Dec) RewardIndexes {
newIndexes := make(RewardIndexes, len(ris))
copy(newIndexes, ris)
for i, ri := range newIndexes {
if ri.CollateralType == denom {
newIndexes[i].RewardFactor = factor
return newIndexes
}
}
return append(newIndexes, NewRewardIndex(denom, factor))
}
// GetFactorIndex gets the index of a specific reward index inside the array by its index
func (ris RewardIndexes) GetFactorIndex(denom string) (int, bool) {
for i, ri := range ris {
@ -476,6 +500,16 @@ func (mris MultiRewardIndexes) GetRewardIndex(denom string) (MultiRewardIndex, b
return MultiRewardIndex{}, false
}
// Get fetches a RewardIndexes by it's denom
func (mris MultiRewardIndexes) Get(denom string) (RewardIndexes, bool) {
for _, mri := range mris {
if mri.CollateralType == denom {
return mri.RewardIndexes, true
}
}
return nil, false
}
// GetRewardIndexIndex fetches a specific reward index inside the array by its denom
func (mris MultiRewardIndexes) GetRewardIndexIndex(denom string) (int, bool) {
for i, ri := range mris {
@ -486,6 +520,19 @@ func (mris MultiRewardIndexes) GetRewardIndexIndex(denom string) (int, bool) {
return -1, false
}
// With returns a copy of the indexes with a new RewardIndexes added
func (mris MultiRewardIndexes) With(denom string, indexes RewardIndexes) MultiRewardIndexes {
newIndexes := mris.copy()
for i, mri := range newIndexes {
if mri.CollateralType == denom {
newIndexes[i].RewardIndexes = indexes
return newIndexes
}
}
return append(newIndexes, NewMultiRewardIndex(denom, indexes))
}
// GetCollateralTypes returns a slice of containing all collateral types
func (mris MultiRewardIndexes) GetCollateralTypes() []string {
var collateralTypes []string
@ -499,7 +546,9 @@ func (mris MultiRewardIndexes) GetCollateralTypes() []string {
func (mris MultiRewardIndexes) RemoveRewardIndex(denom string) MultiRewardIndexes {
for i, ri := range mris {
if ri.CollateralType == denom {
return append(mris[:i], mris[i+1:]...)
// copy the slice and underlying array to avoid altering the original
copy := mris.copy()
return append(copy[:i], copy[i+1:]...)
}
}
return mris
@ -514,3 +563,10 @@ func (mris MultiRewardIndexes) Validate() error {
}
return nil
}
// copy returns a copy of the slice and underlying array
func (mris MultiRewardIndexes) copy() MultiRewardIndexes {
newIndexes := make(MultiRewardIndexes, len(mris))
copy(newIndexes, mris)
return newIndexes
}

299
x/incentive/types/claims_test.go
View File

@ -1,13 +1,12 @@
package types
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/crypto"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/crypto"
)
func TestClaimsValidate(t *testing.T) {
@ -72,3 +71,295 @@ func TestClaimsValidate(t *testing.T) {
}
}
}
func TestRewardIndexes(t *testing.T) {
t.Run("With", func(t *testing.T) {
var arbitraryDec = sdk.MustNewDecFromStr("0.1")
type args struct {
denom string
factor sdk.Dec
}
testcases := []struct {
name string
rewardIndexes RewardIndexes
args args
expected RewardIndexes
}{
{
name: "when index is not present, it's added and original isn't overwritten",
rewardIndexes: RewardIndexes{
NewRewardIndex("denom", arbitraryDec),
},
args: args{
denom: "otherdenom",
factor: arbitraryDec,
},
expected: RewardIndexes{
NewRewardIndex("denom", arbitraryDec),
NewRewardIndex("otherdenom", arbitraryDec),
},
},
{
name: "when index is present, it's updated and original isn't overwritten",
rewardIndexes: RewardIndexes{
NewRewardIndex("denom", arbitraryDec),
},
args: args{
denom: "denom",
factor: arbitraryDec.MulInt64(2),
},
expected: RewardIndexes{
NewRewardIndex("denom", arbitraryDec.MulInt64(2)),
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
newIndexes := tc.rewardIndexes.With(tc.args.denom, tc.args.factor)
require.Equal(t, tc.expected, newIndexes)
require.NotEqual(t, tc.rewardIndexes, newIndexes) // check original slice not modified
})
}
})
t.Run("Get", func(t *testing.T) {
var arbitraryDec = sdk.MustNewDecFromStr("0.1")
type expected struct {
factor sdk.Dec
found bool
}
testcases := []struct {
name string
rewardIndexes RewardIndexes
arg_denom string
expected expected
}{
{
name: "when index is present, it is found and returned",
rewardIndexes: RewardIndexes{
NewRewardIndex("denom", arbitraryDec),
},
arg_denom: "denom",
expected: expected{
factor: arbitraryDec,
found: true,
},
},
{
name: "when index is not present, it is not found",
rewardIndexes: RewardIndexes{
NewRewardIndex("denom", arbitraryDec),
},
arg_denom: "notpresent",
expected: expected{
found: false,
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
factor, found := tc.rewardIndexes.Get(tc.arg_denom)
require.Equal(t, tc.expected.found, found)
require.Equal(t, tc.expected.factor, factor)
})
}
})
}
func TestMultiRewardIndexes(t *testing.T) {
arbitraryRewardIndexes := RewardIndexes{
{
CollateralType: "reward",
RewardFactor: sdk.MustNewDecFromStr("0.1"),
},
}
t.Run("Get", func(t *testing.T) {
type expected struct {
rewardIndexes RewardIndexes
found bool
}
testcases := []struct {
name string
multiRewardIndexes MultiRewardIndexes
arg_denom string
expected expected
}{
{
name: "when indexes are present, they are found and returned",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
arg_denom: "denom",
expected: expected{
found: true,
rewardIndexes: arbitraryRewardIndexes,
},
},
{
name: "when indexes are not present, they are not found",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
arg_denom: "notpresent",
expected: expected{
found: false,
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
rewardIndexes, found := tc.multiRewardIndexes.Get(tc.arg_denom)
require.Equal(t, tc.expected.found, found)
require.Equal(t, tc.expected.rewardIndexes, rewardIndexes)
})
}
})
t.Run("With", func(t *testing.T) {
type args struct {
denom string
rewardIndexes RewardIndexes
}
testcases := []struct {
name string
multiRewardIndexes MultiRewardIndexes
args args
expected MultiRewardIndexes
}{
{
name: "when indexes are not present, add them and do not update original",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
args: args{
denom: "otherdenom",
rewardIndexes: arbitraryRewardIndexes,
},
expected: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
{
CollateralType: "otherdenom",
RewardIndexes: arbitraryRewardIndexes,
},
},
},
{
name: "when indexes are present, update them and do not update original",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
args: args{
denom: "denom",
rewardIndexes: appendUniqueRewardIndex(arbitraryRewardIndexes),
},
expected: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: appendUniqueRewardIndex(arbitraryRewardIndexes),
},
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
oldIndexes := tc.multiRewardIndexes.copy()
newIndexes := tc.multiRewardIndexes.With(tc.args.denom, tc.args.rewardIndexes)
require.Equal(t, tc.expected, newIndexes)
require.Equal(t, oldIndexes, tc.multiRewardIndexes)
})
}
})
t.Run("RemoveRewardIndex", func(t *testing.T) {
testcases := []struct {
name string
multiRewardIndexes MultiRewardIndexes
arg_denom string
expected MultiRewardIndexes
}{
{
name: "when indexes are not present, do nothing",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
arg_denom: "notpresent",
expected: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
},
},
{
name: "when indexes are present, remove them and do not update original",
multiRewardIndexes: MultiRewardIndexes{
{
CollateralType: "denom",
RewardIndexes: arbitraryRewardIndexes,
},
{
CollateralType: "otherdenom",
RewardIndexes: arbitraryRewardIndexes,
},
},
arg_denom: "denom",
expected: MultiRewardIndexes{
{
CollateralType: "otherdenom",
RewardIndexes: arbitraryRewardIndexes,
},
},
},
}
for _, tc := range testcases {
t.Run(tc.name, func(t *testing.T) {
oldIndexes := tc.multiRewardIndexes.copy()
newIndexes := tc.multiRewardIndexes.RemoveRewardIndex(tc.arg_denom)
require.Equal(t, tc.expected, newIndexes)
require.Equal(t, oldIndexes, tc.multiRewardIndexes)
})
}
})
}
func appendUniqueRewardIndex(indexes RewardIndexes) RewardIndexes {
const uniqueDenom = "uniquereward"
for _, mri := range indexes {
if mri.CollateralType == uniqueDenom {
panic(fmt.Sprintf("tried to add unique reward index with denom '%s', but denom already existed", uniqueDenom))
}
}
return append(
indexes,
NewRewardIndex(uniqueDenom, sdk.MustNewDecFromStr("0.02")),
)
}

1
x/incentive/types/errors.go
View File

@ -19,4 +19,5 @@ var (
ErrClaimExpired = sdkerrors.Register(ModuleName, 10, "claim has expired")
ErrInvalidClaimType = sdkerrors.Register(ModuleName, 11, "invalid claim type")
ErrInvalidClaimOwner = sdkerrors.Register(ModuleName, 12, "invalid claim owner")
ErrDecreasingRewardFactor = sdkerrors.Register(ModuleName, 13, "found new reward factor less than an old reward factor")
)

9
x/incentive/types/expected_keepers.go
View File

@ -3,6 +3,7 @@ package types
import (
sdk "github.com/cosmos/cosmos-sdk/types"
authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
"github.com/cosmos/cosmos-sdk/x/params"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
supplyexported "github.com/cosmos/cosmos-sdk/x/supply/exported"
@ -10,6 +11,14 @@ import (
hardtypes "github.com/kava-labs/kava/x/hard/types"
)
// ParamSubspace defines the expected Subspace interfacace
type ParamSubspace interface {
GetParamSet(sdk.Context, params.ParamSet)
SetParamSet(sdk.Context, params.ParamSet)
WithKeyTable(params.KeyTable) params.Subspace
HasKeyTable() bool
}
// SupplyKeeper defines the expected supply keeper for module accounts
type SupplyKeeper interface {
GetModuleAccount(ctx sdk.Context, name string) supplyexported.ModuleAccountI