mirror of
https://github.com/0glabs/0g-chain.git
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49d62dd076
* initial feature scaffolding * implement interest keeper logic * basic AccrueInterest * accrue interest on borrow * update borrow index formula * update sample reserve factor * move AccrueInterest to begin blocker * refactor interest rate updates for accrue interest * use interest rate model from store * refactor begin blocker state machine * add reserve factor to interest model params * update comment * store money market instead of interest rate models * update test suite * use BorrowedCoins store key * update public functions and alias * unit tests, keeper test scaffolding * demo panic * address revisions * add 'normal no jump' test case * spy = 1 + borrow rate * update comment * APYToSPY unit test * per user borrow index list * interest keeper test * test: interest applied on successive borrows * varied snapshot times * test: multiple, varied snapshots * address revisions * add pending interest before validating new borrow * update makefile * address revisions * fix test
475 lines
18 KiB
Go
475 lines
18 KiB
Go
package keeper_test
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import (
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"fmt"
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"testing"
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"time"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/staking"
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"github.com/stretchr/testify/suite"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/crypto"
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"github.com/tendermint/tendermint/crypto/ed25519"
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"github.com/kava-labs/kava/app"
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"github.com/kava-labs/kava/x/harvest/keeper"
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"github.com/kava-labs/kava/x/harvest/types"
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)
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func (suite *KeeperTestSuite) TestApplyDepositRewards() {
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type args struct {
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depositor sdk.AccAddress
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denom string
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depositAmount sdk.Coin
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totalDeposits sdk.Coin
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rewardRate sdk.Coin
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claimType types.ClaimType
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previousBlockTime time.Time
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blockTime time.Time
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expectedClaimBalance sdk.Coin
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}
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type errArgs struct {
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expectPanic bool
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contains string
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}
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type testCase struct {
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name string
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args args
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errArgs errArgs
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}
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testCases := []testCase{
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{
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name: "distribute rewards",
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args: args{
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depositor: sdk.AccAddress(crypto.AddressHash([]byte("test"))),
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denom: "bnb",
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rewardRate: c("hard", 500),
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depositAmount: c("bnb", 100),
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totalDeposits: c("bnb", 1000),
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claimType: types.LP,
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previousBlockTime: time.Date(2020, 11, 1, 13, 59, 50, 0, time.UTC),
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blockTime: time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC),
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expectedClaimBalance: c("hard", 500),
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},
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errArgs: errArgs{
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expectPanic: false,
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contains: "",
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},
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},
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}
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for _, tc := range testCases {
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suite.Run(tc.name, func() {
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// Initialize test app and set context
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tc.args.blockTime})
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loanToValue, _ := sdk.NewDecFromStr("0.6")
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harvestGS := types.NewGenesisState(types.NewParams(
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true,
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types.DistributionSchedules{
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types.NewDistributionSchedule(true, "bnb", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC), tc.args.rewardRate, time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Large, 24, sdk.OneDec())}),
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},
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types.DelegatorDistributionSchedules{types.NewDelegatorDistributionSchedule(
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types.NewDistributionSchedule(true, "bnb", time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC), time.Date(2025, 10, 8, 14, 0, 0, 0, time.UTC), tc.args.rewardRate, time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC), types.Multipliers{types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")), types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")), types.NewMultiplier(types.Large, 24, sdk.OneDec())}),
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time.Hour*24,
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),
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},
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types.MoneyMarkets{
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types.NewMoneyMarket("usdx", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "usdx:usd", sdk.NewInt(1000000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05")),
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types.NewMoneyMarket("ukava", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "kava:usd", sdk.NewInt(1000000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05")),
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},
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), tc.args.previousBlockTime, types.DefaultDistributionTimes)
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tApp.InitializeFromGenesisStates(app.GenesisState{types.ModuleName: types.ModuleCdc.MustMarshalJSON(harvestGS)})
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supplyKeeper := tApp.GetSupplyKeeper()
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supplyKeeper.MintCoins(ctx, types.ModuleAccountName, cs(tc.args.totalDeposits))
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keeper := tApp.GetHarvestKeeper()
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deposit := types.NewDeposit(tc.args.depositor, tc.args.depositAmount)
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keeper.SetDeposit(ctx, deposit)
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suite.app = tApp
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suite.ctx = ctx
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suite.keeper = keeper
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if tc.errArgs.expectPanic {
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suite.Require().Panics(func() { suite.keeper.ApplyDepositRewards(suite.ctx) })
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} else {
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suite.Require().NotPanics(func() { suite.keeper.ApplyDepositRewards(suite.ctx) })
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claim, f := suite.keeper.GetClaim(suite.ctx, tc.args.depositor, tc.args.denom, tc.args.claimType)
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suite.Require().True(f)
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suite.Require().Equal(tc.args.expectedClaimBalance, claim.Amount)
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}
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})
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}
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}
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func TestApplyDelegatorRewardsTestSuite(t *testing.T) {
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suite.Run(t, new(DelegatorRewardsTestSuite))
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}
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type DelegatorRewardsTestSuite struct {
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suite.Suite
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validatorAddrs []sdk.ValAddress
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delegatorAddrs []sdk.AccAddress
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keeper keeper.Keeper
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stakingKeeper staking.Keeper
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app app.TestApp
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rewardRate int64
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}
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// The default state used by each test
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func (suite *DelegatorRewardsTestSuite) SetupTest() {
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config := sdk.GetConfig()
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app.SetBech32AddressPrefixes(config)
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_, allAddrs := app.GeneratePrivKeyAddressPairs(10)
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suite.delegatorAddrs = allAddrs[:5]
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for _, a := range allAddrs[5:] {
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suite.validatorAddrs = append(suite.validatorAddrs, sdk.ValAddress(a))
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}
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suite.app = app.NewTestApp()
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suite.rewardRate = 500
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suite.app.InitializeFromGenesisStates(
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equalCoinsAuthGenState(allAddrs, cs(c("ukava", 5_000_000))),
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stakingGenesisState(),
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harvestGenesisState(c("hard", suite.rewardRate)),
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)
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suite.keeper = suite.app.GetHarvestKeeper()
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suite.stakingKeeper = suite.app.GetStakingKeeper()
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}
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func (suite *DelegatorRewardsTestSuite) TestSlash() {
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blockTime := time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC)
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ctx := suite.app.NewContext(true, abci.Header{Height: 1, Time: blockTime})
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const rewardDuration = 5
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suite.keeper.SetPreviousDelegationDistribution(ctx, blockTime.Add(-1*rewardDuration*time.Second), "ukava")
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[0], c("ukava", 5_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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suite.Require().NoError(
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suite.slashValidator(ctx, suite.validatorAddrs[0], "0.05"),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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// Run function under test
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suite.keeper.ApplyDelegationRewards(ctx, "ukava")
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// Check claim amounts
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, sdk.AccAddress(suite.validatorAddrs[0]), c("hard", suite.rewardRate*rewardDuration)),
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)
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}
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func (suite *DelegatorRewardsTestSuite) TestUndelegation() {
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blockTime := time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC)
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ctx := suite.app.NewContext(true, abci.Header{Height: 1, Time: blockTime})
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const rewardDuration = 5
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suite.keeper.SetPreviousDelegationDistribution(ctx, blockTime.Add(-1*rewardDuration*time.Second), "ukava")
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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suite.Require().NoError(
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suite.deliverMsgUndelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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// Run function under test
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suite.keeper.ApplyDelegationRewards(ctx, "ukava")
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// Check claim amounts
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, sdk.AccAddress(suite.validatorAddrs[0]), c("hard", suite.rewardRate*rewardDuration)),
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)
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suite.Require().False(
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suite.kavaClaimExists(ctx, suite.delegatorAddrs[0]),
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)
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}
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func (suite *DelegatorRewardsTestSuite) TestUnevenNumberDelegations() {
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// Setup a context
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blockTime := time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC)
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ctx := suite.app.NewContext(true, abci.Header{Height: 1, Time: blockTime})
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const rewardDuration = 5
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suite.keeper.SetPreviousDelegationDistribution(ctx, blockTime.Add(-1*rewardDuration*time.Second), "ukava")
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[1], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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// Run function under test
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suite.keeper.ApplyDelegationRewards(ctx, "ukava")
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// Check claim amounts
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expectedReward := suite.rewardRate * rewardDuration / 3 // floor division
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, sdk.AccAddress(suite.validatorAddrs[0]), c("hard", expectedReward)),
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)
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, suite.delegatorAddrs[0], c("hard", expectedReward)),
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)
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, suite.delegatorAddrs[1], c("hard", expectedReward)),
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)
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}
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func (suite *DelegatorRewardsTestSuite) TestSlashWithUndelegated() {
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// Setup a context
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blockTime := time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC)
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ctx := suite.app.NewContext(true, abci.Header{Height: 1, Time: blockTime})
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const rewardDuration = 5
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suite.keeper.SetPreviousDelegationDistribution(ctx, blockTime.Add(-1*rewardDuration*time.Second), "ukava")
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[1], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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suite.Require().NoError(
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suite.deliverMsgUndelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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suite.Require().NoError(
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suite.slashValidator(ctx, suite.validatorAddrs[0], "0.05"),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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// Run function under test
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suite.keeper.ApplyDelegationRewards(ctx, "ukava")
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// Check claim amounts
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, sdk.AccAddress(suite.validatorAddrs[0]), c("hard", suite.rewardRate*rewardDuration/2)),
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)
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suite.Require().False(
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suite.kavaClaimExists(ctx, suite.delegatorAddrs[0]),
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)
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, suite.delegatorAddrs[1], c("hard", suite.rewardRate*rewardDuration/2)),
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)
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}
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func (suite *DelegatorRewardsTestSuite) TestUnbondingValidator() {
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// Setup a context
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blockTime := time.Date(2020, 11, 1, 14, 0, 0, 0, time.UTC)
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ctx := suite.app.NewContext(true, abci.Header{Height: 1, Time: blockTime})
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const rewardDuration = 5
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suite.keeper.SetPreviousDelegationDistribution(ctx, blockTime.Add(-1*rewardDuration*time.Second), "ukava")
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgCreateValidator(ctx, suite.validatorAddrs[1], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[0], suite.validatorAddrs[0], c("ukava", 1_000_000)),
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)
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suite.Require().NoError(
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suite.deliverMsgDelegate(ctx, suite.delegatorAddrs[1], suite.validatorAddrs[1], c("ukava", 1_000_000)),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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suite.Require().NoError(
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// jail the validator to put it into an unbonding state
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suite.jailValidator(ctx, suite.validatorAddrs[0]),
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)
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staking.EndBlocker(ctx, suite.stakingKeeper)
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// Run function under test
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suite.keeper.ApplyDelegationRewards(ctx, "ukava")
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// Check claim amounts
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suite.Require().False(
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// validator 0 will be unbonding and should not receive rewards
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suite.kavaClaimExists(ctx, sdk.AccAddress(suite.validatorAddrs[0])),
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)
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, sdk.AccAddress(suite.validatorAddrs[1]), c("hard", suite.rewardRate*rewardDuration/2)),
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)
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suite.Require().False(
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// delegations to unbonding validators and should not receive rewards
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suite.kavaClaimExists(ctx, suite.delegatorAddrs[0]),
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)
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suite.Require().NoError(
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suite.verifyKavaClaimAmount(ctx, suite.delegatorAddrs[1], c("hard", suite.rewardRate*rewardDuration/2)),
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)
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}
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func (suite *DelegatorRewardsTestSuite) deliverMsgCreateValidator(ctx sdk.Context, address sdk.ValAddress, selfDelegation sdk.Coin) error {
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msg := staking.NewMsgCreateValidator(
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address,
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ed25519.GenPrivKey().PubKey(),
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selfDelegation,
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staking.Description{},
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staking.NewCommissionRates(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()),
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sdk.NewInt(1_000_000),
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)
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handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
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_, err := handleStakingMsg(ctx, msg)
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return err
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}
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func (suite *DelegatorRewardsTestSuite) deliverMsgDelegate(ctx sdk.Context, delegator sdk.AccAddress, validator sdk.ValAddress, amount sdk.Coin) error {
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msg := staking.NewMsgDelegate(
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delegator,
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validator,
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amount,
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)
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handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
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_, err := handleStakingMsg(ctx, msg)
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return err
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}
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func (suite *DelegatorRewardsTestSuite) deliverMsgUndelegate(ctx sdk.Context, delegator sdk.AccAddress, validator sdk.ValAddress, amount sdk.Coin) error {
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msg := staking.NewMsgUndelegate(
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delegator,
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validator,
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amount,
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)
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handleStakingMsg := staking.NewHandler(suite.stakingKeeper)
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_, err := handleStakingMsg(ctx, msg)
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return err
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}
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func (suite *DelegatorRewardsTestSuite) slashValidator(ctx sdk.Context, validator sdk.ValAddress, slashPercent string) error {
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// Assume slashable offence occurred at block 1. Note this might cause problems if tests are running at a block height higher than the unbonding period (default 3 weeks)
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const infractionHeight int64 = 1
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val, found := suite.stakingKeeper.GetValidator(ctx, validator)
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if !found {
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return fmt.Errorf("can't find validator in state")
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}
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suite.stakingKeeper.Slash(
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ctx,
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sdk.GetConsAddress(val.ConsPubKey),
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infractionHeight,
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val.GetConsensusPower(),
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sdk.MustNewDecFromStr(slashPercent),
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)
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return nil
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}
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func (suite *DelegatorRewardsTestSuite) jailValidator(ctx sdk.Context, validator sdk.ValAddress) error {
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val, found := suite.stakingKeeper.GetValidator(ctx, validator)
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if !found {
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return fmt.Errorf("can't find validator in state")
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}
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suite.stakingKeeper.Jail(ctx, sdk.GetConsAddress(val.ConsPubKey))
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return nil
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}
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// verifyKavaClaimAmount looks up a ukava claim and checks the claim amount is equal to an expected value
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func (suite *DelegatorRewardsTestSuite) verifyKavaClaimAmount(ctx sdk.Context, owner sdk.AccAddress, expectedAmount sdk.Coin) error {
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claim, found := suite.keeper.GetClaim(ctx, owner, "ukava", types.Stake)
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if !found {
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return fmt.Errorf("could not find claim")
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}
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if !expectedAmount.IsEqual(claim.Amount) {
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return fmt.Errorf("expected claim amount (%s) != actual claim amount (%s)", expectedAmount, claim.Amount)
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}
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return nil
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}
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// kavaClaimExists checks the store for a ukava claim
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func (suite *DelegatorRewardsTestSuite) kavaClaimExists(ctx sdk.Context, owner sdk.AccAddress) bool {
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_, found := suite.keeper.GetClaim(ctx, owner, "ukava", types.Stake)
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return found
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}
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func harvestGenesisState(rewardRate sdk.Coin) app.GenesisState {
|
|
loanToValue := sdk.MustNewDecFromStr("0.6")
|
|
genState := types.NewGenesisState(
|
|
types.NewParams(
|
|
true,
|
|
types.DistributionSchedules{
|
|
types.NewDistributionSchedule(
|
|
true,
|
|
"bnb",
|
|
time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC),
|
|
time.Date(2020, 11, 22, 14, 0, 0, 0, time.UTC),
|
|
rewardRate,
|
|
time.Date(2021, 11, 22, 14, 0, 0, 0, time.UTC),
|
|
types.Multipliers{
|
|
types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")),
|
|
types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")),
|
|
types.NewMultiplier(types.Large, 24, sdk.OneDec()),
|
|
},
|
|
),
|
|
},
|
|
types.DelegatorDistributionSchedules{
|
|
types.NewDelegatorDistributionSchedule(
|
|
types.NewDistributionSchedule(
|
|
true,
|
|
"ukava",
|
|
time.Date(2020, 10, 8, 14, 0, 0, 0, time.UTC),
|
|
time.Date(2025, 10, 8, 14, 0, 0, 0, time.UTC),
|
|
rewardRate,
|
|
time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC),
|
|
types.Multipliers{
|
|
types.NewMultiplier(types.Small, 0, sdk.MustNewDecFromStr("0.33")),
|
|
types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.5")),
|
|
types.NewMultiplier(types.Large, 24, sdk.OneDec()),
|
|
},
|
|
),
|
|
time.Hour*24,
|
|
),
|
|
},
|
|
types.MoneyMarkets{
|
|
types.NewMoneyMarket("usdx", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "usdx:usd", sdk.NewInt(1000000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05")),
|
|
types.NewMoneyMarket("ukava", types.NewBorrowLimit(false, sdk.NewDec(1000000000000000), loanToValue), "kava:usd", sdk.NewInt(1000000), types.NewInterestRateModel(sdk.MustNewDecFromStr("0.05"), sdk.MustNewDecFromStr("2"), sdk.MustNewDecFromStr("0.8"), sdk.MustNewDecFromStr("10")), sdk.MustNewDecFromStr("0.05")),
|
|
},
|
|
),
|
|
types.DefaultPreviousBlockTime,
|
|
types.DefaultDistributionTimes,
|
|
)
|
|
return app.GenesisState{
|
|
types.ModuleName: types.ModuleCdc.MustMarshalJSON(genState),
|
|
}
|
|
|
|
}
|
|
|
|
func stakingGenesisState() app.GenesisState {
|
|
genState := staking.DefaultGenesisState()
|
|
genState.Params.BondDenom = "ukava"
|
|
return app.GenesisState{
|
|
staking.ModuleName: staking.ModuleCdc.MustMarshalJSON(genState),
|
|
}
|
|
}
|
|
|
|
// equalCoinsAuthGenState returns an auth genesis state with the same coins for each account
|
|
func equalCoinsAuthGenState(addresses []sdk.AccAddress, coins sdk.Coins) app.GenesisState {
|
|
coinsList := []sdk.Coins{}
|
|
for range addresses {
|
|
coinsList = append(coinsList, coins)
|
|
}
|
|
return app.NewAuthGenState(addresses, coinsList)
|
|
}
|