0g-chain/app/tally_handler_test.go

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package app
import (
"testing"
"time"
"github.com/cosmos/cosmos-sdk/crypto/keys/ed25519"
sdk "github.com/cosmos/cosmos-sdk/types"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
"github.com/cosmos/cosmos-sdk/x/staking"
stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
"github.com/stretchr/testify/suite"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
earntypes "github.com/kava-labs/kava/x/earn/types"
liquidtypes "github.com/kava-labs/kava/x/liquid/types"
)
// d is an alias for sdk.MustNewDecFromStr
var d = sdk.MustNewDecFromStr
type tallyHandlerSuite struct {
suite.Suite
app TestApp
ctx sdk.Context
staking stakingHelper
tallier TallyHandler
}
func TestTallyHandlerSuite(t *testing.T) {
suite.Run(t, new(tallyHandlerSuite))
}
func (suite *tallyHandlerSuite) SetupTest() {
suite.app = NewTestApp()
suite.app.InitializeFromGenesisStates()
genesisTime := time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC)
suite.ctx = suite.app.NewContext(false, tmproto.Header{Height: 1, Time: genesisTime})
suite.staking = stakingHelper{suite.app.GetStakingKeeper()}
suite.staking.setBondDenom(suite.ctx, "ukava")
suite.tallier = NewTallyHandler(
suite.app.GetGovKeeper(),
suite.app.GetStakingKeeper(),
suite.app.GetSavingsKeeper(),
suite.app.GetEarnKeeper(),
suite.app.GetLiquidKeeper(),
suite.app.GetBankKeeper(),
)
}
func (suite *tallyHandlerSuite) TestVotePower_AllSourcesCounted() {
user := suite.createAccount(suite.newBondCoin(sdk.NewInt(1e9)))
validator := suite.delegateToNewBondedValidator(user.GetAddress(), sdk.NewInt(1e9))
derivatives := suite.mintDerivative(user.GetAddress(), validator.GetOperator(), sdk.NewInt(500e6))
suite.allowBKavaEarnDeposits()
suite.earnDeposit(
user.GetAddress(),
sdk.NewCoin(derivatives.Denom, sdk.NewInt(250e6)),
)
proposal := suite.createProposal()
suite.voteOnProposal(user.GetAddress(), proposal.ProposalId, govtypes.OptionYes)
_, _, results := suite.tallier.Tally(suite.ctx, proposal)
suite.Equal(sdk.NewInt(500e6+250e6+250e6), results.Yes)
suite.Equal(sdk.ZeroInt(), results.No)
suite.Equal(sdk.ZeroInt(), results.NoWithVeto)
suite.Equal(sdk.ZeroInt(), results.Abstain)
}
func (suite *tallyHandlerSuite) TestVotePower_UserOverridesValidator() {
user := suite.createAccount(suite.newBondCoin(sdk.NewInt(1e9)))
delegated := sdk.NewInt(1e9)
validator := suite.delegateToNewBondedValidator(user.GetAddress(), delegated)
selfDelegated := validator.GetTokens().Sub(delegated)
derivatives := suite.mintDerivative(user.GetAddress(), validator.GetOperator(), sdk.NewInt(500e6))
suite.allowBKavaEarnDeposits()
suite.earnDeposit(
user.GetAddress(),
sdk.NewCoin(derivatives.Denom, sdk.NewInt(250e6)),
)
proposal := suite.createProposal()
// Validator votes, inheriting user's stake and bkava.
suite.voteOnProposal(validator.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionYes)
// use wrapped context to discard the state changes
readOnlyCtx, _ := suite.ctx.CacheContext()
_, _, results := suite.tallier.Tally(readOnlyCtx, proposal)
userPower := sdk.NewInt(500e6 + 250e6 + 250e6)
suite.Equal(
selfDelegated.Add(userPower),
results.Yes,
)
suite.Equal(sdk.ZeroInt(), results.No)
suite.Equal(sdk.ZeroInt(), results.NoWithVeto)
suite.Equal(sdk.ZeroInt(), results.Abstain)
// User votes, taking power away from validator.
suite.voteOnProposal(user.GetAddress(), proposal.ProposalId, govtypes.OptionNo)
_, _, results = suite.tallier.Tally(suite.ctx, proposal)
suite.Equal(selfDelegated, results.Yes)
suite.Equal(userPower, results.No)
suite.Equal(sdk.ZeroInt(), results.NoWithVeto)
suite.Equal(sdk.ZeroInt(), results.Abstain)
}
func (suite *tallyHandlerSuite) TestTallyOutcomes() {
suite.Run("VotedPowerBelowQuorumFails", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
v1 := suite.createNewBondedValidator(sdk.NewInt(399_999_999))
suite.createNewBondedValidator(sdk.NewInt(600_000_001))
suite.voteOnProposal(v1.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionYes)
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Falsef(passes, "expected proposal to fail, tally: %v", tally)
suite.Truef(burns, "expected desposit to be burned, tally: %v", tally)
})
suite.Run("VetoedFails", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
v1 := suite.createNewBondedValidator(sdk.NewInt(334_000_001))
v2 := suite.createNewBondedValidator(sdk.NewInt(665_999_999))
suite.voteOnProposal(v1.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionNoWithVeto)
suite.voteOnProposal(v2.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionYes)
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Falsef(passes, "expected proposal to fail, tally: %v", tally)
suite.Truef(burns, "expected desposit to be burned, tally: %v", tally)
})
suite.Run("UnvetoedAndYesAboveThresholdPasses", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
v1 := suite.createNewBondedValidator(sdk.NewInt(900_000_000))
v2 := suite.createNewBondedValidator(sdk.NewInt(50_000_001))
v3 := suite.createNewBondedValidator(sdk.NewInt(49_999_999))
suite.voteOnProposal(v1.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionAbstain)
suite.voteOnProposal(v2.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionYes)
suite.voteOnProposal(v3.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionNo)
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Truef(passes, "expected proposal to pass, tally: %v", tally)
suite.Falsef(burns, "expected desposit to not burn, tally: %v", tally)
})
suite.Run("UnvetoedAndYesBelowThresholdFails", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
v1 := suite.createNewBondedValidator(sdk.NewInt(900_000_000))
v2 := suite.createNewBondedValidator(sdk.NewInt(49_999_999))
v3 := suite.createNewBondedValidator(sdk.NewInt(50_000_001))
suite.voteOnProposal(v1.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionAbstain)
suite.voteOnProposal(v2.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionYes)
suite.voteOnProposal(v3.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionNo)
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Falsef(passes, "expected proposal to pass, tally: %v", tally)
suite.Falsef(burns, "expected desposit to not burn, tally: %v", tally)
})
suite.Run("NotEnoughStakeFails", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
// no stake
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Falsef(passes, "expected proposal to pass, tally: %v", tally)
suite.Falsef(burns, "expected desposit to not burn, tally: %v", tally)
})
suite.Run("UnvetoedAndAllAbstainedFails", func() {
suite.SetupTest()
suite.setTallyParams(d("0.4"), d("0.5"), d("0.334"))
proposal := suite.createProposal()
v1 := suite.createNewBondedValidator(sdk.NewInt(1e9))
suite.voteOnProposal(v1.GetOperator().Bytes(), proposal.ProposalId, govtypes.OptionAbstain)
passes, burns, tally := suite.tallier.Tally(suite.ctx, proposal)
suite.Falsef(passes, "expected proposal to pass, tally: %v", tally)
suite.Falsef(burns, "expected desposit to not burn, tally: %v", tally)
})
}
func (suite *tallyHandlerSuite) setTallyParams(quorum, threshold, veto sdk.Dec) {
suite.app.GetGovKeeper().SetTallyParams(suite.ctx, govtypes.TallyParams{
Quorum: quorum,
Threshold: threshold,
VetoThreshold: veto,
})
}
func (suite *tallyHandlerSuite) voteOnProposal(voter sdk.AccAddress, proposalID uint64, option govtypes.VoteOption) {
gk := suite.app.GetGovKeeper()
err := gk.AddVote(suite.ctx,
proposalID,
voter,
govtypes.NewNonSplitVoteOption(option),
)
suite.Require().NoError(err)
}
func (suite *tallyHandlerSuite) createProposal() govtypes.Proposal {
gk := suite.app.GetGovKeeper()
deposit := gk.GetDepositParams(suite.ctx).MinDeposit
proposer := suite.createAccount(deposit...)
msg, err := govtypes.NewMsgSubmitProposal(
govtypes.NewTextProposal("a title", "a description"),
deposit,
proposer.GetAddress(),
)
suite.Require().NoError(err)
msgServer := govkeeper.NewMsgServerImpl(gk)
res, err := msgServer.SubmitProposal(sdk.WrapSDKContext(suite.ctx), msg)
suite.Require().NoError(err)
proposal, found := gk.GetProposal(suite.ctx, res.ProposalId)
if !found {
panic("proposal not found")
}
return proposal
}
func (suite *tallyHandlerSuite) newBondCoin(amount sdk.Int) sdk.Coin {
return suite.staking.newBondCoin(suite.ctx, amount)
}
func (suite *tallyHandlerSuite) allowBKavaEarnDeposits() {
ek := suite.app.GetEarnKeeper()
earnParams := ek.GetParams(suite.ctx)
vault := earntypes.NewAllowedVault(
liquidtypes.DefaultDerivativeDenom,
earntypes.StrategyTypes{earntypes.STRATEGY_TYPE_SAVINGS},
false,
nil,
)
earnParams.AllowedVaults = append(earnParams.AllowedVaults, vault)
ek.SetParams(suite.ctx, earnParams)
sk := suite.app.GetSavingsKeeper()
savingsParams := sk.GetParams(suite.ctx)
savingsParams.SupportedDenoms = append(savingsParams.SupportedDenoms, liquidtypes.DefaultDerivativeDenom)
sk.SetParams(suite.ctx, savingsParams)
}
func (suite *tallyHandlerSuite) earnDeposit(owner sdk.AccAddress, derivative sdk.Coin) {
ek := suite.app.GetEarnKeeper()
err := ek.Deposit(suite.ctx, owner, derivative, earntypes.STRATEGY_TYPE_SAVINGS)
suite.Require().NoError(err)
}
func (suite *tallyHandlerSuite) mintDerivative(owner sdk.AccAddress, validator sdk.ValAddress, amount sdk.Int) sdk.Coin {
lk := suite.app.GetLiquidKeeper()
minted, err := lk.MintDerivative(suite.ctx, owner, validator, suite.newBondCoin(amount))
suite.Require().NoError(err)
return minted
}
func (suite *tallyHandlerSuite) delegateToNewBondedValidator(delegator sdk.AccAddress, amount sdk.Int) stakingtypes.ValidatorI {
valAcc := suite.createAccount(suite.newBondCoin(sdk.NewInt(1e9)))
validator, err := suite.staking.createUnbondedValidator(suite.ctx, valAcc.GetAddress().Bytes(), sdk.NewInt(1e9))
suite.Require().NoError(err)
_, err = suite.staking.delegate(suite.ctx, delegator, validator.GetOperator(), amount)
suite.Require().NoError(err)
// bond the validator
sk := suite.app.GetStakingKeeper()
staking.EndBlocker(suite.ctx, sk)
validator, found := sk.GetValidator(suite.ctx, validator.GetOperator())
if !found {
panic("validator not found")
}
return validator
}
func (suite *tallyHandlerSuite) createNewBondedValidator(selfDelegation sdk.Int) stakingtypes.ValidatorI {
valAcc := suite.createAccount(suite.newBondCoin(selfDelegation))
validator, err := suite.staking.createUnbondedValidator(suite.ctx, valAcc.GetAddress().Bytes(), selfDelegation)
suite.Require().NoError(err)
// bond the validator
sk := suite.app.GetStakingKeeper()
staking.EndBlocker(suite.ctx, sk)
validator, found := sk.GetValidator(suite.ctx, validator.GetOperator())
if !found {
panic("validator not found")
}
return validator
}
func (suite *tallyHandlerSuite) createAccount(initialBalance ...sdk.Coin) authtypes.AccountI {
ak := suite.app.GetAccountKeeper()
acc := ak.NewAccountWithAddress(suite.ctx, RandomAddress())
ak.SetAccount(suite.ctx, acc)
err := suite.app.FundAccount(suite.ctx, acc.GetAddress(), initialBalance)
suite.Require().NoError(err)
return acc
}
// stakingHelper wraps the staking keeper with helper functions for testing.
type stakingHelper struct {
keeper stakingkeeper.Keeper
}
func (h stakingHelper) createUnbondedValidator(ctx sdk.Context, address sdk.ValAddress, selfDelegation sdk.Int) (stakingtypes.ValidatorI, error) {
msg, err := stakingtypes.NewMsgCreateValidator(
address,
ed25519.GenPrivKey().PubKey(),
h.newBondCoin(ctx, selfDelegation),
stakingtypes.Description{},
stakingtypes.NewCommissionRates(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()),
sdk.NewInt(1e6),
)
if err != nil {
return nil, err
}
msgServer := stakingkeeper.NewMsgServerImpl(h.keeper)
_, err = msgServer.CreateValidator(sdk.WrapSDKContext(ctx), msg)
if err != nil {
return nil, err
}
validator, found := h.keeper.GetValidator(ctx, address)
if !found {
panic("validator not found")
}
return validator, nil
}
func (h stakingHelper) delegate(ctx sdk.Context, delegator sdk.AccAddress, validator sdk.ValAddress, amount sdk.Int) (sdk.Dec, error) {
msg := stakingtypes.NewMsgDelegate(
delegator,
validator,
h.newBondCoin(ctx, amount),
)
msgServer := stakingkeeper.NewMsgServerImpl(h.keeper)
_, err := msgServer.Delegate(sdk.WrapSDKContext(ctx), msg)
if err != nil {
return sdk.Dec{}, err
}
del, found := h.keeper.GetDelegation(ctx, delegator, validator)
if !found {
panic("delegation not found")
}
return del.Shares, nil
}
func (h stakingHelper) newBondCoin(ctx sdk.Context, amount sdk.Int) sdk.Coin {
return sdk.NewCoin(h.keeper.BondDenom(ctx), amount)
}
func (h stakingHelper) setBondDenom(ctx sdk.Context, denom string) {
params := h.keeper.GetParams(ctx)
params.BondDenom = denom
h.keeper.SetParams(ctx, params)
}