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genesis.go
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genesis.go
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package simulation
import (
"encoding/json"
"fmt"
"math/rand"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/module"
"github.com/tessornetwork/nebula/x/oracle/types"
)
// Simulation parameter constants
const (
votePeriodKey = "vote_period"
voteThresholdKey = "vote_threshold"
rewardBandKey = "reward_band"
rewardDistributionWindowKey = "reward_distribution_window"
slashFractionKey = "slash_fraction"
slashWindowKey = "slash_window"
minValidPerWindowKey = "min_valid_per_window"
stampPeriodKey = "stamp_period"
prunePeriodKey = "prune_period"
medianPeriodKey = "median_period"
)
// GenVotePeriod produces a randomized VotePeriod in the range of [5, 100]
func GenVotePeriod(r *rand.Rand) uint64 {
return uint64(5 + r.Intn(100))
}
// GenVoteThreshold produces a randomized VoteThreshold in the range of [0.333, 0.666]
func GenVoteThreshold(r *rand.Rand) sdk.Dec {
return sdk.NewDecWithPrec(333, 3).Add(sdk.NewDecWithPrec(int64(r.Intn(333)), 3))
}
// GenRewardBand produces a randomized RewardBand in the range of [0.000, 0.100]
func GenRewardBand(r *rand.Rand) sdk.Dec {
return sdk.ZeroDec().Add(sdk.NewDecWithPrec(int64(r.Intn(100)), 3))
}
// GenRewardDistributionWindow produces a randomized RewardDistributionWindow in the range of [100, 100000]
func GenRewardDistributionWindow(r *rand.Rand) uint64 {
return uint64(100 + r.Intn(100000))
}
// GenSlashFraction produces a randomized SlashFraction in the range of [0.000, 0.100]
func GenSlashFraction(r *rand.Rand) sdk.Dec {
return sdk.ZeroDec().Add(sdk.NewDecWithPrec(int64(r.Intn(100)), 3))
}
// GenSlashWindow produces a randomized SlashWindow in the range of [100, 100000]
func GenSlashWindow(r *rand.Rand) uint64 {
return uint64(100 + r.Intn(100000))
}
// GenMinValidPerWindow produces a randomized MinValidPerWindow in the range of [0, 0.500]
func GenMinValidPerWindow(r *rand.Rand) sdk.Dec {
return sdk.ZeroDec().Add(sdk.NewDecWithPrec(int64(r.Intn(500)), 3))
}
// GenStampPeriod produces a randomized StampPeriod in the range of [100, 1000]
func GenStampPeriod(r *rand.Rand) uint64 {
return uint64(100 + r.Intn(1000))
}
// GenPrunePeriod produces a randomized PrunePeriod in the range of [10001, 100000]
func GenPrunePeriod(r *rand.Rand) uint64 {
return uint64(10001 + r.Intn(100000))
}
// GenMedianPeriod produces a randomized MedianPeriod in the range of [1001, 10000]
func GenMedianPeriod(r *rand.Rand) uint64 {
return uint64(1001 + r.Intn(10000))
}
// RandomizedGenState generates a random GenesisState for oracle
func RandomizedGenState(simState *module.SimulationState) {
var votePeriod uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, votePeriodKey, &votePeriod, simState.Rand,
func(r *rand.Rand) { votePeriod = GenVotePeriod(r) },
)
var voteThreshold sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, voteThresholdKey, &voteThreshold, simState.Rand,
func(r *rand.Rand) { voteThreshold = GenVoteThreshold(r) },
)
var rewardBand sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, rewardBandKey, &rewardBand, simState.Rand,
func(r *rand.Rand) { rewardBand = GenRewardBand(r) },
)
var rewardDistributionWindow uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, rewardDistributionWindowKey, &rewardDistributionWindow, simState.Rand,
func(r *rand.Rand) { rewardDistributionWindow = GenRewardDistributionWindow(r) },
)
var slashFraction sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, slashFractionKey, &slashFraction, simState.Rand,
func(r *rand.Rand) { slashFraction = GenSlashFraction(r) },
)
var slashWindow uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, slashWindowKey, &slashWindow, simState.Rand,
func(r *rand.Rand) { slashWindow = GenSlashWindow(r) },
)
var minValidPerWindow sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, minValidPerWindowKey, &minValidPerWindow, simState.Rand,
func(r *rand.Rand) { minValidPerWindow = GenMinValidPerWindow(r) },
)
var stampPeriod uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, stampPeriodKey, &stampPeriod, simState.Rand,
func(r *rand.Rand) { stampPeriod = GenStampPeriod(r) },
)
var prunePeriod uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, prunePeriodKey, &prunePeriod, simState.Rand,
func(r *rand.Rand) { prunePeriod = GenPrunePeriod(r) },
)
var medianPeriod uint64
simState.AppParams.GetOrGenerate(
simState.Cdc, medianPeriodKey, &medianPeriod, simState.Rand,
func(r *rand.Rand) { medianPeriod = GenMedianPeriod(r) },
)
oracleGenesis := types.DefaultGenesisState()
oracleGenesis.Params = types.Params{
VotePeriod: votePeriod,
VoteThreshold: voteThreshold,
RewardBand: rewardBand,
RewardDistributionWindow: rewardDistributionWindow,
AcceptList: types.DenomList{
{SymbolDenom: types.NebulaSymbol, BaseDenom: types.NebulaDenom},
},
SlashFraction: slashFraction,
SlashWindow: slashWindow,
MinValidPerWindow: minValidPerWindow,
HistoricAcceptList: types.DenomList{
{SymbolDenom: types.NebulaSymbol, BaseDenom: types.NebulaDenom},
},
StampPeriod: stampPeriod,
PrunePeriod: prunePeriod,
MedianPeriod: medianPeriod,
}
bz, err := json.MarshalIndent(&oracleGenesis.Params, "", " ")
if err != nil {
panic(err)
}
fmt.Printf("Selected randomly generated oracle parameters:\n%s\n", bz)
simState.GenState[types.ModuleName] = simState.Cdc.MustMarshalJSON(oracleGenesis)
}