laconicd-deprecated/x/evm/simulation/genesis.go
crypto-facs c4417713fa
imp(evm): define minimum GasUsed proportional to GasLimit (#1087)
* min gas denominator implementation

* update changelog

* modify MinGasDenominator type to sdk.Dec

* fix typo in comments

* add comments

* update comment

* refactor logic

* remove unnecesary test

* fix typo on proto

* rename param

* fix tests

* use truncate and run mod tidy

* comment to default value

* update changelog

* rename temporary gas used

* integration tests

* add migrations

* add default as var

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
2022-05-25 13:52:34 +00:00

62 lines
1.7 KiB
Go

package simulation
import (
"encoding/json"
"fmt"
"math/rand"
"github.com/cosmos/cosmos-sdk/types/module"
"github.com/tharsis/ethermint/x/evm/types"
)
const (
extraEIPsKey = "extra_eips"
)
// GenExtraEIPs defines a set of extra EIPs with 50% probability
func GenExtraEIPs(r *rand.Rand) []int64 {
var extraEIPs []int64
// 50% chance of having extra EIPs
if r.Intn(2) == 0 {
extraEIPs = []int64{1344, 1884, 2200, 2929, 3198, 3529}
}
return extraEIPs
}
// GenEnableCreate enables the EnableCreate param with 80% probability
func GenEnableCreate(r *rand.Rand) bool {
// 80% chance of enabling create contract
enableCreate := r.Intn(100) < 80
return enableCreate
}
// GenEnableCall enables the EnableCall param with 80% probability
func GenEnableCall(r *rand.Rand) bool {
// 80% chance of enabling evm account transfer and calling contract
enableCall := r.Intn(100) < 80
return enableCall
}
// RandomizedGenState generates a random GenesisState for the EVM module
func RandomizedGenState(simState *module.SimulationState) {
// evm params
var extraEIPs []int64
simState.AppParams.GetOrGenerate(
simState.Cdc, extraEIPsKey, &extraEIPs, simState.Rand,
func(r *rand.Rand) { extraEIPs = GenExtraEIPs(r) },
)
params := types.NewParams(types.DefaultEVMDenom, true, true, types.DefaultChainConfig(), types.DefaultMinGasMultiplier, extraEIPs...)
evmGenesis := types.NewGenesisState(params, []types.GenesisAccount{})
bz, err := json.MarshalIndent(evmGenesis, "", " ")
if err != nil {
panic(err)
}
fmt.Printf("Selected randomly generated %s parameters:\n%s\n", types.ModuleName, bz)
simState.GenState[types.ModuleName] = simState.Cdc.MustMarshalJSON(evmGenesis)
}