cosmos-sdk/x/mint/simulation/genesis.go
samricotta e2c91fc1d7
refactor(genutil,group,mint): remove aliases from types/math.go (#15824)
## Description

Closes part of: https://github.com/cosmos/cosmos-sdk/issues/14405



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

* [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
* [ ] added `!` to the type prefix if API or client breaking change
* [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
* [ ] provided a link to the relevant issue or specification
* [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/docs/building-modules)
* [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
* [ ] added a changelog entry to `CHANGELOG.md`
* [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
* [ ] updated the relevant documentation or specification
* [ ] reviewed "Files changed" and left comments if necessary
* [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

* [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
* [ ] confirmed `!` in the type prefix if API or client breaking change
* [ ] confirmed all author checklist items have been addressed 
* [ ] reviewed state machine logic
* [ ] reviewed API design and naming
* [ ] reviewed documentation is accurate
* [ ] reviewed tests and test coverage
* [ ] manually tested (if applicable)
2023-04-13 12:34:47 +00:00

94 lines
2.7 KiB
Go

package simulation
import (
"encoding/json"
"fmt"
"math/rand"
"cosmossdk.io/math"
"github.com/cosmos/cosmos-sdk/types/module"
"github.com/cosmos/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 math.LegacyNewDecWithPrec(int64(r.Intn(99)), 2)
}
// GenInflationRateChange randomized InflationRateChange
func GenInflationRateChange(r *rand.Rand) math.LegacyDec {
return math.LegacyNewDecWithPrec(int64(r.Intn(99)), 2)
}
// GenInflationMax randomized InflationMax
func GenInflationMax(r *rand.Rand) math.LegacyDec {
return math.LegacyNewDecWithPrec(20, 2)
}
// GenInflationMin randomized InflationMin
func GenInflationMin(r *rand.Rand) math.LegacyDec {
return math.LegacyNewDecWithPrec(7, 2)
}
// GenGoalBonded randomized GoalBonded
func GenGoalBonded(r *rand.Rand) math.LegacyDec {
return math.LegacyNewDecWithPrec(67, 2)
}
// RandomizedGenState generates a random GenesisState for mint
func RandomizedGenState(simState *module.SimulationState) {
// minter
var inflation math.LegacyDec
simState.AppParams.GetOrGenerate(
simState.Cdc, Inflation, &inflation, simState.Rand,
func(r *rand.Rand) { inflation = GenInflation(r) },
)
// params
var inflationRateChange math.LegacyDec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationRateChange, &inflationRateChange, simState.Rand,
func(r *rand.Rand) { inflationRateChange = GenInflationRateChange(r) },
)
var inflationMax math.LegacyDec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationMax, &inflationMax, simState.Rand,
func(r *rand.Rand) { inflationMax = GenInflationMax(r) },
)
var inflationMin math.LegacyDec
simState.AppParams.GetOrGenerate(
simState.Cdc, InflationMin, &inflationMin, simState.Rand,
func(r *rand.Rand) { inflationMin = GenInflationMin(r) },
)
var goalBonded math.LegacyDec
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)
}