0g-chain/x/incentive/keeper/rewards_delegator_test.go
Ruaridh 42c0b187f4
Incentive Refactor: split large files (#905)
* group reward code by type

* split out usdx reward tests into own file

* split out delegator reward tests into own file

* split supply borrow reward tests into own files

* sync order of test functions in files
2021-05-04 08:47:21 -06:00

732 lines
32 KiB
Go

package keeper_test
import (
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/staking"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/kava-labs/kava/x/hard"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
func (suite *KeeperTestSuite) TestAccumulateHardDelegatorRewards() {
type args struct {
delegation sdk.Coin
rewardsPerSecond sdk.Coin
initialTime time.Time
timeElapsed int
expectedRewardFactor sdk.Dec
}
type test struct {
name string
args args
}
testCases := []test{
{
"7 seconds",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: c("hard", 122354),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
timeElapsed: 7,
expectedRewardFactor: d("0.428239000000000000"),
},
},
{
"1 day",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: c("hard", 122354),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
timeElapsed: 86400,
expectedRewardFactor: d("5285.692800000000000000"),
},
},
{
"0 seconds",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: c("hard", 122354),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
timeElapsed: 0,
expectedRewardFactor: d("0.0"),
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupWithGenState()
suite.ctx = suite.ctx.WithBlockTime(tc.args.initialTime)
// Mint coins to hard module account
supplyKeeper := suite.app.GetSupplyKeeper()
hardMaccCoins := sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(200000000)))
supplyKeeper.MintCoins(suite.ctx, hardtypes.ModuleAccountName, hardMaccCoins)
// Set up incentive state
params := types.NewParams(
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), cs(tc.args.rewardsPerSecond))},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), cs(tc.args.rewardsPerSecond))},
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.Multipliers{types.NewMultiplier(types.MultiplierName("small"), 1, d("0.25")), types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0"))},
tc.args.initialTime.Add(time.Hour*24*365*5),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, tc.args.delegation.Denom, sdk.ZeroDec())
// Set up hard state (interest factor for the relevant denom)
suite.hardKeeper.SetPreviousAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], tc.args.delegation)
suite.Require().NoError(err)
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[0], tc.args.delegation)
suite.Require().NoError(err)
staking.EndBlocker(suite.ctx, suite.stakingKeeper)
// Set up chain context at future time
runAtTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * tc.args.timeElapsed))
runCtx := suite.ctx.WithBlockTime(runAtTime)
// Run Hard begin blocker in order to update the denom's index factor
hard.BeginBlocker(runCtx, suite.hardKeeper)
rewardPeriod, found := suite.keeper.GetHardDelegatorRewardPeriod(runCtx, tc.args.delegation.Denom)
suite.Require().True(found)
err = suite.keeper.AccumulateHardDelegatorRewards(runCtx, rewardPeriod)
suite.Require().NoError(err)
rewardFactor, found := suite.keeper.GetHardDelegatorRewardFactor(runCtx, tc.args.delegation.Denom)
suite.Require().Equal(tc.args.expectedRewardFactor, rewardFactor)
})
}
}
func (suite *KeeperTestSuite) TestSynchronizeHardDelegatorReward() {
type args struct {
delegation sdk.Coin
rewardsPerSecond sdk.Coin
initialTime time.Time
blockTimes []int
expectedRewardFactor sdk.Dec
expectedRewards sdk.Coins
}
type test struct {
name string
args args
}
testCases := []test{
{
"10 blocks",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: c("hard", 122354),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardFactor: d("6.117700000000000000"),
expectedRewards: cs(c("hard", 6117700)),
},
},
{
"10 blocks - long block time",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: c("hard", 122354),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
blockTimes: []int{86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400},
expectedRewardFactor: d("52856.928000000000000000"),
expectedRewards: cs(c("hard", 52856928000)),
},
},
{
"delegator reward index updated when reward is zero",
args{
delegation: c("ukava", 1),
rewardsPerSecond: c("hard", 1),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardFactor: d("0.000099999900000100"),
expectedRewards: nil,
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupWithGenState()
suite.ctx = suite.ctx.WithBlockTime(tc.args.initialTime)
// Mint coins to hard module account
supplyKeeper := suite.app.GetSupplyKeeper()
hardMaccCoins := sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(200000000)))
supplyKeeper.MintCoins(suite.ctx, hardtypes.ModuleAccountName, hardMaccCoins)
// setup incentive state
params := types.NewParams(
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), cs(tc.args.rewardsPerSecond))},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), cs(tc.args.rewardsPerSecond))},
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.Multipliers{types.NewMultiplier(types.MultiplierName("small"), 1, d("0.25")), types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0"))},
tc.args.initialTime.Add(time.Hour*24*365*5),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, tc.args.delegation.Denom, sdk.ZeroDec())
// Set up hard state (interest factor for the relevant denom)
suite.hardKeeper.SetPreviousAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
// Create validator account
staking.BeginBlocker(suite.ctx, suite.stakingKeeper)
selfDelegationCoins := c("ukava", 1_000_000)
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], selfDelegationCoins)
suite.Require().NoError(err)
staking.EndBlocker(suite.ctx, suite.stakingKeeper)
// Delegator delegates
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[0], tc.args.delegation)
suite.Require().NoError(err)
// Check that validator account has been created and delegation was successful
valAcc, found := suite.stakingKeeper.GetValidator(suite.ctx, suite.validatorAddrs[0])
suite.True(found)
suite.Require().Equal(valAcc.Status, sdk.Bonded)
suite.Require().Equal(valAcc.Tokens, tc.args.delegation.Amount.Add(selfDelegationCoins.Amount))
// Check that Staking hooks initialized a HardLiquidityProviderClaim
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
suite.Require().Equal(sdk.ZeroDec(), claim.DelegatorRewardIndexes[0].RewardFactor)
// Run accumulator at several intervals
var timeElapsed int
previousBlockTime := suite.ctx.BlockTime()
for _, t := range tc.args.blockTimes {
timeElapsed += t
updatedBlockTime := previousBlockTime.Add(time.Duration(int(time.Second) * t))
previousBlockTime = updatedBlockTime
blockCtx := suite.ctx.WithBlockTime(updatedBlockTime)
// Run Hard begin blocker for each block ctx to update denom's interest factor
hard.BeginBlocker(blockCtx, suite.hardKeeper)
rewardPeriod, found := suite.keeper.GetHardDelegatorRewardPeriod(blockCtx, tc.args.delegation.Denom)
suite.Require().True(found)
err := suite.keeper.AccumulateHardDelegatorRewards(blockCtx, rewardPeriod)
suite.Require().NoError(err)
}
updatedBlockTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * timeElapsed))
suite.ctx = suite.ctx.WithBlockTime(updatedBlockTime)
// After we've accumulated, run synchronize
suite.Require().NotPanics(func() {
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, suite.addrs[0], nil, false)
})
// Check that reward factor and claim have been updated as expected
rewardFactor, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, tc.args.delegation.Denom)
suite.Require().Equal(tc.args.expectedRewardFactor, rewardFactor)
claim, found = suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
suite.Require().Equal(tc.args.expectedRewardFactor, claim.DelegatorRewardIndexes[0].RewardFactor)
suite.Require().Equal(tc.args.expectedRewards, claim.Reward)
})
}
}
func (suite *KeeperTestSuite) TestSimulateHardDelegatorRewardSynchronization() {
type args struct {
delegation sdk.Coin
rewardsPerSecond sdk.Coins
initialTime time.Time
blockTimes []int
expectedRewardIndexes types.RewardIndexes
expectedRewards sdk.Coins
}
type test struct {
name string
args args
}
testCases := []test{
{
"10 blocks",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: cs(c("hard", 122354)),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
blockTimes: []int{10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("ukava", d("6.117700000000000000"))}, // Here the reward index stores data differently than inside a MultiRewardIndex
expectedRewards: cs(c("hard", 6117700)),
},
},
{
"10 blocks - long block time",
args{
delegation: c("ukava", 1_000_000),
rewardsPerSecond: cs(c("hard", 122354)),
initialTime: time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
blockTimes: []int{86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400, 86400},
expectedRewardIndexes: types.RewardIndexes{types.NewRewardIndex("ukava", d("52856.928000000000000000"))},
expectedRewards: cs(c("hard", 52856928000)),
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupWithGenState()
suite.ctx = suite.ctx.WithBlockTime(tc.args.initialTime)
// Mint coins to hard module account
supplyKeeper := suite.app.GetSupplyKeeper()
hardMaccCoins := sdk.NewCoins(sdk.NewCoin("usdx", sdk.NewInt(200000000)))
supplyKeeper.MintCoins(suite.ctx, hardtypes.ModuleAccountName, hardMaccCoins)
// setup incentive state
params := types.NewParams(
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond[0])},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.MultiRewardPeriods{types.NewMultiRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond)},
types.RewardPeriods{types.NewRewardPeriod(true, tc.args.delegation.Denom, tc.args.initialTime, tc.args.initialTime.Add(time.Hour*24*365*4), tc.args.rewardsPerSecond[0])},
types.Multipliers{types.NewMultiplier(types.MultiplierName("small"), 1, d("0.25")), types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0"))},
tc.args.initialTime.Add(time.Hour*24*365*5),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, tc.args.delegation.Denom, sdk.ZeroDec())
// Set up hard state (interest factor for the relevant denom)
suite.hardKeeper.SetPreviousAccrualTime(suite.ctx, tc.args.delegation.Denom, tc.args.initialTime)
// Delegator delegates
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], tc.args.delegation)
suite.Require().NoError(err)
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[0], tc.args.delegation)
suite.Require().NoError(err)
staking.EndBlocker(suite.ctx, suite.stakingKeeper)
// Check that Staking hooks initialized a HardLiquidityProviderClaim
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
suite.Require().Equal(sdk.ZeroDec(), claim.DelegatorRewardIndexes[0].RewardFactor)
// Run accumulator at several intervals
var timeElapsed int
previousBlockTime := suite.ctx.BlockTime()
for _, t := range tc.args.blockTimes {
timeElapsed += t
updatedBlockTime := previousBlockTime.Add(time.Duration(int(time.Second) * t))
previousBlockTime = updatedBlockTime
blockCtx := suite.ctx.WithBlockTime(updatedBlockTime)
// Run Hard begin blocker for each block ctx to update denom's interest factor
hard.BeginBlocker(blockCtx, suite.hardKeeper)
// Accumulate hard delegator rewards
rewardPeriod, found := suite.keeper.GetHardDelegatorRewardPeriod(blockCtx, tc.args.delegation.Denom)
suite.Require().True(found)
err := suite.keeper.AccumulateHardDelegatorRewards(blockCtx, rewardPeriod)
suite.Require().NoError(err)
}
updatedBlockTime := suite.ctx.BlockTime().Add(time.Duration(int(time.Second) * timeElapsed))
suite.ctx = suite.ctx.WithBlockTime(updatedBlockTime)
// Check that the synced claim held in memory has properly simulated syncing
syncedClaim := suite.keeper.SimulateHardSynchronization(suite.ctx, claim)
for _, expectedRewardIndex := range tc.args.expectedRewardIndexes {
// Check that the user's claim's reward index matches the expected reward index
rewardIndex, found := syncedClaim.DelegatorRewardIndexes.GetRewardIndex(expectedRewardIndex.CollateralType)
suite.Require().True(found)
suite.Require().Equal(expectedRewardIndex, rewardIndex)
// Check that the user's claim holds the expected amount of reward coins
suite.Require().Equal(
tc.args.expectedRewards.AmountOf(expectedRewardIndex.CollateralType),
syncedClaim.Reward.AmountOf(expectedRewardIndex.CollateralType),
)
}
})
}
}
func (suite *KeeperTestSuite) deliverMsgCreateValidator(ctx sdk.Context, address sdk.ValAddress, selfDelegation sdk.Coin) error {
msg := staking.NewMsgCreateValidator(
address,
ed25519.GenPrivKey().PubKey(),
selfDelegation,
staking.Description{},
staking.NewCommissionRates(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()),
sdk.NewInt(1_000_000),
)
handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
_, err := handleStakingMsg(ctx, msg)
return err
}
func (suite *KeeperTestSuite) deliverMsgDelegate(ctx sdk.Context, delegator sdk.AccAddress, validator sdk.ValAddress, amount sdk.Coin) error {
msg := staking.NewMsgDelegate(
delegator,
validator,
amount,
)
handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
_, err := handleStakingMsg(ctx, msg)
return err
}
func (suite *KeeperTestSuite) deliverMsgRedelegate(ctx sdk.Context, delegator sdk.AccAddress, sourceValidator, destinationValidator sdk.ValAddress, amount sdk.Coin) error {
msg := staking.NewMsgBeginRedelegate(
delegator,
sourceValidator,
destinationValidator,
amount,
)
handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
_, err := handleStakingMsg(ctx, msg)
return err
}
// given a user has a delegation to a bonded validator, when the validator starts unbonding, the user does not accumulate rewards
func (suite *KeeperTestSuite) TestUnbondingValidatorSyncsClaim() {
suite.SetupWithGenState()
initialTime := time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
suite.ctx = suite.ctx.WithBlockTime(initialTime)
blockDuration := 10 * time.Second
// Setup incentive state
rewardsPerSecond := c("hard", 122354)
bondDenom := "ukava"
params := types.NewParams(
nil,
nil,
nil,
types.RewardPeriods{
types.NewRewardPeriod(true, bondDenom, initialTime.Add(-1*oneYear), initialTime.Add(4*oneYear), rewardsPerSecond),
},
types.DefaultMultipliers,
initialTime.Add(5*oneYear),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, bondDenom, initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, bondDenom, sdk.ZeroDec())
// Reduce the size of the validator set
stakingParams := suite.app.GetStakingKeeper().GetParams(suite.ctx)
stakingParams.MaxValidators = 2
suite.app.GetStakingKeeper().SetParams(suite.ctx, stakingParams)
// Create 3 validators
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], c(bondDenom, 10_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[1], c(bondDenom, 5_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[2], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// End the block so top validators become bonded
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(1 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Delegate to a bonded validator from the test user. This will initialize their incentive claim.
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[1], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// Start a new block to accumulate some delegation rewards for the user.
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(2 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Delegate to the unbonded validator to push it into the bonded validator set, pushing out the user's delegated validator
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[2], suite.validatorAddrs[2], c(bondDenom, 8_000_000))
suite.Require().NoError(err)
// End the block to start unbonding the user's validator
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
// but don't start the next block as it will accumulate delegator rewards and we won't be able to tell if the user's reward was synced.
// Check that the user's claim has been synced. ie rewards added, index updated
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
globalIndex, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
claimIndex, found := claim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, claimIndex.RewardFactor)
suite.Require().Equal(
cs(c(rewardsPerSecond.Denom, 76471)),
claim.Reward,
)
// Run another block and check the claim is not accumulating more rewards
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(3 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{})
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, suite.addrs[0], nil, false)
// rewards are the same as before
laterClaim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
suite.Require().Equal(claim.Reward, laterClaim.Reward)
// claim index has been updated to latest global value
laterClaimIndex, found := laterClaim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
globalIndex, found = suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, laterClaimIndex.RewardFactor)
}
// given a user has a delegation to an unbonded validator, when the validator becomes bonded, the user starts accumulating rewards
func (suite *KeeperTestSuite) TestBondingValidatorSyncsClaim() {
suite.SetupWithGenState()
initialTime := time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
suite.ctx = suite.ctx.WithBlockTime(initialTime)
blockDuration := 10 * time.Second
// Setup incentive state
rewardsPerSecond := c("hard", 122354)
bondDenom := "ukava"
params := types.NewParams(
nil,
nil,
nil,
types.RewardPeriods{
types.NewRewardPeriod(true, bondDenom, initialTime.Add(-1*oneYear), initialTime.Add(4*oneYear), rewardsPerSecond),
},
types.DefaultMultipliers,
initialTime.Add(5*oneYear),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, bondDenom, initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, bondDenom, sdk.ZeroDec())
// Reduce the size of the validator set
stakingParams := suite.app.GetStakingKeeper().GetParams(suite.ctx)
stakingParams.MaxValidators = 2
suite.app.GetStakingKeeper().SetParams(suite.ctx, stakingParams)
// Create 3 validators
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], c(bondDenom, 10_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[1], c(bondDenom, 5_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[2], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// End the block so top validators become bonded
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(1 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Delegate to an unbonded validator from the test user. This will initialize their incentive claim.
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[2], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// Start a new block to accumulate some delegation rewards globally.
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(2 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{})
// Delegate to the user's unbonded validator to push it into the bonded validator set
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[2], suite.validatorAddrs[2], c(bondDenom, 4_000_000))
suite.Require().NoError(err)
// End the block to bond the user's validator
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
// but don't start the next block as it will accumulate delegator rewards and we won't be able to tell if the user's reward was synced.
// Check that the user's claim has been synced. ie rewards added, index updated
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
globalIndex, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
claimIndex, found := claim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, claimIndex.RewardFactor)
suite.Require().Equal(
sdk.Coins(nil),
claim.Reward,
)
// Run another block and check the claim is accumulating more rewards
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(3 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{})
suite.keeper.SynchronizeHardDelegatorRewards(suite.ctx, suite.addrs[0], nil, false)
// rewards are greater than before
laterClaim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
suite.Require().True(laterClaim.Reward.IsAllGT(claim.Reward))
// claim index has been updated to latest global value
laterClaimIndex, found := laterClaim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
globalIndex, found = suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, laterClaimIndex.RewardFactor)
}
// If a validator is slashed delegators should have their claims synced
func (suite *KeeperTestSuite) TestSlashingValidatorSyncsClaim() {
suite.SetupWithGenState()
initialTime := time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
suite.ctx = suite.ctx.WithBlockTime(initialTime)
blockDuration := 10 * time.Second
// Setup incentive state
rewardsPerSecond := c("hard", 122354)
bondDenom := "ukava"
params := types.NewParams(
nil,
nil,
nil,
types.RewardPeriods{
types.NewRewardPeriod(true, bondDenom, initialTime.Add(-1*oneYear), initialTime.Add(4*oneYear), rewardsPerSecond),
},
types.DefaultMultipliers,
initialTime.Add(5*oneYear),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, bondDenom, initialTime.Add(-1*blockDuration))
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, bondDenom, sdk.ZeroDec())
// Reduce the size of the validator set
stakingParams := suite.app.GetStakingKeeper().GetParams(suite.ctx)
stakingParams.MaxValidators = 2
suite.app.GetStakingKeeper().SetParams(suite.ctx, stakingParams)
// Create 2 validators
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], c(bondDenom, 10_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[1], c(bondDenom, 10_000_000))
suite.Require().NoError(err)
// End the block so validators become bonded
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(1 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Delegate to a bonded validator from the test user. This will initialize their incentive claim.
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[1], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// Check that claim has been created with synced reward index but no reward coins
initialClaim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.True(found)
initialGlobalIndex, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.True(found)
initialClaimIndex, found := initialClaim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.True(found)
suite.Require().Equal(initialGlobalIndex, initialClaimIndex.RewardFactor)
suite.True(initialClaim.Reward.Empty()) // Initial claim should not have any rewards
// Start a new block to accumulate some delegation rewards for the user.
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(2 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Fetch validator and slash them
stakingKeeper := suite.app.GetStakingKeeper()
validator, found := stakingKeeper.GetValidator(suite.ctx, suite.validatorAddrs[1])
suite.Require().True(found)
suite.Require().True(validator.GetTokens().IsPositive())
fraction := sdk.NewDecWithPrec(5, 1)
stakingKeeper.Slash(suite.ctx, validator.ConsAddress(), suite.ctx.BlockHeight(), 10, fraction)
// Check that the user's claim has been synced. ie rewards added, index updated
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
globalIndex, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
claimIndex, found := claim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, claimIndex.RewardFactor)
// Check that rewards were added
suite.Require().Equal(
cs(c(rewardsPerSecond.Denom, 58264)),
claim.Reward,
)
// Check that reward factor increased from initial value
suite.True(claimIndex.RewardFactor.GT(initialClaimIndex.RewardFactor))
}
// Given a delegation to a bonded validator, when a user redelegates everything to another (bonded) validator, the user's claim is synced
func (suite *KeeperTestSuite) TestRedelegationSyncsClaim() {
suite.SetupWithGenState()
initialTime := time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC)
suite.ctx = suite.ctx.WithBlockTime(initialTime)
blockDuration := 10 * time.Second
// Setup incentive state
rewardsPerSecond := c("hard", 122354)
bondDenom := "ukava"
params := types.NewParams(
nil,
nil,
nil,
types.RewardPeriods{
types.NewRewardPeriod(true, bondDenom, initialTime.Add(-1*oneYear), initialTime.Add(4*oneYear), rewardsPerSecond),
},
types.DefaultMultipliers,
initialTime.Add(5*oneYear),
)
suite.keeper.SetParams(suite.ctx, params)
suite.keeper.SetPreviousHardDelegatorRewardAccrualTime(suite.ctx, bondDenom, initialTime)
suite.keeper.SetHardDelegatorRewardFactor(suite.ctx, bondDenom, sdk.ZeroDec())
// Create 2 validators
err := suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[0], c(bondDenom, 10_000_000))
suite.Require().NoError(err)
err = suite.deliverMsgCreateValidator(suite.ctx, suite.validatorAddrs[1], c(bondDenom, 5_000_000))
suite.Require().NoError(err)
// Delegatefrom the test user. This will initialize their incentive claim.
err = suite.deliverMsgDelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[0], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// Start a new block to accumulate some delegation rewards globally.
_ = suite.app.EndBlocker(suite.ctx, abci.RequestEndBlock{})
suite.ctx = suite.ctx.WithBlockTime(initialTime.Add(1 * blockDuration))
_ = suite.app.BeginBlocker(suite.ctx, abci.RequestBeginBlock{}) // height and time in header are ignored by module begin blockers
// Redelegate the user's delegation between the two validators. This should trigger hooks that sync the user's claim.
err = suite.deliverMsgRedelegate(suite.ctx, suite.addrs[0], suite.validatorAddrs[0], suite.validatorAddrs[1], c(bondDenom, 1_000_000))
suite.Require().NoError(err)
// Check that the user's claim has been synced. ie rewards added, index updated
claim, found := suite.keeper.GetHardLiquidityProviderClaim(suite.ctx, suite.addrs[0])
suite.Require().True(found)
globalIndex, found := suite.keeper.GetHardDelegatorRewardFactor(suite.ctx, bondDenom)
suite.Require().True(found)
claimIndex, found := claim.DelegatorRewardIndexes.GetRewardIndex(bondDenom)
suite.Require().True(found)
suite.Require().Equal(globalIndex, claimIndex.RewardFactor)
suite.Require().Equal(
cs(c(rewardsPerSecond.Denom, 76471)),
claim.Reward,
)
}