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genesis.go
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genesis.go
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package simulation
import (
"encoding/json"
"fmt"
"math/rand"
"github.com/verzth/cosmos-sdk/math"
sdk "github.com/verzth/cosmos-sdk/types"
"github.com/verzth/cosmos-sdk/types/module"
"github.com/verzth/cosmos-sdk/x/mint/types"
)
// Simulation parameter constants
const (
Inflation = "inflation"
InflationRateChange = "inflation_rate_change"
InflationMax = "inflation_max"
InflationMin = "inflation_min"
GoalBonded = "goal_bonded"
)
// GenInflation randomized Inflation
func GenInflation(r *rand.Rand) math.LegacyDec {
return sdk.NewDecWithPrec(int64(r.Intn(99)), 2)
}
// GenInflationRateChange randomized InflationRateChange
func GenInflationRateChange(r *rand.Rand) math.LegacyDec {
return sdk.NewDecWithPrec(int64(r.Intn(99)), 2)
}
// GenInflationMax randomized InflationMax
func GenInflationMax(r *rand.Rand) math.LegacyDec {
return sdk.NewDecWithPrec(20, 2)
}
// GenInflationMin randomized InflationMin
func GenInflationMin(r *rand.Rand) math.LegacyDec {
return sdk.NewDecWithPrec(7, 2)
}
// GenGoalBonded randomized GoalBonded
func GenGoalBonded(r *rand.Rand) math.LegacyDec {
return sdk.NewDecWithPrec(67, 2)
}
// RandomizedGenState generates a random GenesisState for mint
func RandomizedGenState(simState *module.SimulationState) {
// minter
var inflation sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, Inflation, &inflation, simState.Rand,
func(r *rand.Rand) { inflation = GenInflation(r) },
)
// params
var inflationRateChange sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationRateChange, &inflationRateChange, simState.Rand,
func(r *rand.Rand) { inflationRateChange = GenInflationRateChange(r) },
)
var inflationMax sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationMax, &inflationMax, simState.Rand,
func(r *rand.Rand) { inflationMax = GenInflationMax(r) },
)
var inflationMin sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationMin, &inflationMin, simState.Rand,
func(r *rand.Rand) { inflationMin = GenInflationMin(r) },
)
var goalBonded sdk.Dec
simState.AppParams.GetOrGenerate(
simState.Cdc, GoalBonded, &goalBonded, simState.Rand,
func(r *rand.Rand) { goalBonded = GenGoalBonded(r) },
)
mintDenom := simState.BondDenom
blocksPerYear := uint64(60 * 60 * 8766 / 5)
params := types.NewParams(mintDenom, inflationRateChange, inflationMax, inflationMin, goalBonded, blocksPerYear)
mintGenesis := types.NewGenesisState(types.InitialMinter(inflation), params)
bz, err := json.MarshalIndent(&mintGenesis, "", " ")
if err != nil {
panic(err)
}
fmt.Printf("Selected randomly generated minting parameters:\n%s\n", bz)
simState.GenState[types.ModuleName] = simState.Cdc.MustMarshalJSON(mintGenesis)
}