forked from cerc-io/laconicd-deprecated
fix: simulations don't generate EVM transactions (#996)
* use SimAppChainId instead of the default cosmos-sdk simulation chainid * implement custom RandomGenesisAccounts for auth module simulation * use customized RandomGenesisAccounts * generate random ethereum txs operations * use sdk.DefaultBondDenom * implement WeightedOperations * fix self assignment * use customized RandomAccounts to generate accounts with ethsecp256k1 private key * RandomAccounts generate random accounts with ethsecp256k1 private key * implement SimulateEthSimpleTransfer * implement SimulateEthCreateContract * refactor and implement operationSimulateEthCallContract as future operations of SimulateEthCreateContract * Update app/app.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update app/test_helpers.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update app/test_helpers.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * fix r.Read return only 1 result * fix linter errors * change SimulateContext to private * return transferable amount immediately * fix linter errors * fix linter errors: append assign to different slice * fix linter error: remove else block * use gofumpt * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * Update x/evm/simulation/operations.go Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * fix recipient typo * add nosec comment to escape Potential hardcoded credentials check * add comments * use SimAppChainID as valid chainID * do not specify genesis.json to create random genesis state for simulation * sub estimateGas to avoid overflow * correct RandomGenesisAccounts comments Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * correct app/test_helpers.go comments Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * remove NewTxConfig * implement RegisterStoreDecoder * remove WeightMsgEthCallContract and adjust weights * use gofmt * update godoc * use types.DefaultEVMDenom in evm genesis params Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * use types.DefaultEVMDenom Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * update godoc * Update x/evm/simulation/genesis.go * replace evmdenom with bonddenom in AppStateFn * fix AppStateFn * fix lint error * add ParamChanges for RandomizedParams * rename app/test_helpers.go -> app/utils.go * testing for RandomGenesisAccounts * use cdc for marshaling * lint * changelog * changelog 2 Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> Co-authored-by: crypto-facs <84574577+crypto-facs@users.noreply.github.com> Co-authored-by: Freddy Caceres <freddy.caceres@crypto.com> Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
This commit is contained in:
Adu
co-authored by
Federico Kunze Küllmer
crypto-facs
Freddy Caceres
Federico Kunze Küllmer
Federico Kunze Küllmer
crypto-facs
Freddy Caceres
Federico Kunze Küllmer
parent
e4abbe1bbc
commit
eaca3e09e2
@@ -0,0 +1,31 @@
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package simulation
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import (
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"bytes"
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"fmt"
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"github.com/cosmos/cosmos-sdk/types/kv"
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"github.com/ethereum/go-ethereum/common"
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"github.com/tharsis/ethermint/x/evm/types"
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)
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// NewDecodeStore returns a decoder function closure that unmarshals the KVPair's
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// Value to the corresponding evm type.
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func NewDecodeStore() func(kvA, kvB kv.Pair) string {
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return func(kvA, kvB kv.Pair) string {
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switch {
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case bytes.Equal(kvA.Key[:1], types.KeyPrefixStorage):
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storageHashA := common.BytesToHash(kvA.Value).Hex()
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storageHashB := common.BytesToHash(kvB.Value).Hex()
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return fmt.Sprintf("%v\n%v", storageHashA, storageHashB)
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case bytes.Equal(kvA.Key[:1], types.KeyPrefixCode):
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codeHashA := common.BytesToHash(kvA.Value).Hex()
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codeHashB := common.BytesToHash(kvB.Value).Hex()
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return fmt.Sprintf("%v\n%v", codeHashA, codeHashB)
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default:
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panic(fmt.Sprintf("invalid evm key prefix %X", kvA.Key[:1]))
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}
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}
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}
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@@ -3,18 +3,26 @@ package simulation
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import (
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"encoding/json"
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"fmt"
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"math/rand"
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"github.com/cosmos/cosmos-sdk/types/module"
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"github.com/tharsis/ethermint/x/evm/types"
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)
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// GenExtraEIPs randomly generates specific extra eips or not.
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func genExtraEIPs(r *rand.Rand) []int64 {
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var extraEIPs []int64
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if r.Uint32()%2 == 0 {
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extraEIPs = []int64{1344, 1884, 2200, 2929, 3198, 3529}
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}
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return extraEIPs
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}
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// RandomizedGenState generates a random GenesisState for nft
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func RandomizedGenState(simState *module.SimulationState) {
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params := types.NewParams(types.DefaultEVMDenom, true, true, types.DefaultChainConfig())
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if simState.Rand.Uint32()%2 == 0 {
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params = types.NewParams(types.DefaultEVMDenom, true, true, types.DefaultChainConfig(), 1344, 1884, 2200, 2929, 3198, 3529)
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}
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extraEIPs := genExtraEIPs(simState.Rand)
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params := types.NewParams(types.DefaultEVMDenom, true, true, types.DefaultChainConfig(), extraEIPs...)
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evmGenesis := types.NewGenesisState(params, []types.GenesisAccount{})
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bz, err := json.MarshalIndent(evmGenesis, "", " ")
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@@ -0,0 +1,299 @@
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package simulation
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import (
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"encoding/json"
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"fmt"
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"math/big"
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"math/rand"
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"time"
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"github.com/cosmos/cosmos-sdk/baseapp"
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"github.com/cosmos/cosmos-sdk/codec"
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codectypes "github.com/cosmos/cosmos-sdk/codec/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/module"
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simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
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sdktx "github.com/cosmos/cosmos-sdk/types/tx"
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"github.com/cosmos/cosmos-sdk/x/auth/tx"
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"github.com/cosmos/cosmos-sdk/x/simulation"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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ethtypes "github.com/ethereum/go-ethereum/core/types"
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"github.com/cosmos/cosmos-sdk/client"
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cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
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"github.com/cosmos/cosmos-sdk/x/auth/signing"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/tharsis/ethermint/encoding"
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"github.com/tharsis/ethermint/server/config"
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"github.com/tharsis/ethermint/tests"
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"github.com/tharsis/ethermint/x/evm/keeper"
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"github.com/tharsis/ethermint/x/evm/types"
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)
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const (
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/* #nosec */
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OpWeightMsgEthSimpleTransfer = "op_weight_msg_eth_simple_transfer"
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/* #nosec */
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OpWeightMsgEthCreateContract = "op_weight_msg_eth_create_contract"
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/* #nosec */
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OpWeightMsgEthCallContract = "op_weight_msg_eth_call_contract"
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)
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const (
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WeightMsgEthSimpleTransfer = 50
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WeightMsgEthCreateContract = 50
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)
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var ErrNoEnoughBalance = fmt.Errorf("no enough balance")
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var maxWaitSeconds = 10
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type simulateContext struct {
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context sdk.Context
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bapp *baseapp.BaseApp
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rand *rand.Rand
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keeper *keeper.Keeper
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}
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// WeightedOperations generate Two kinds of operations: SimulateEthSimpleTransfer, SimulateEthCreateContract.
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// Contract call operations work as the future operations of SimulateEthCreateContract.
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func WeightedOperations(
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appParams simtypes.AppParams, cdc codec.JSONCodec, ak types.AccountKeeper, k *keeper.Keeper,
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) simulation.WeightedOperations {
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var (
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weightMsgEthSimpleTransfer int
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weightMsgEthCreateContract int
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)
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appParams.GetOrGenerate(cdc, OpWeightMsgEthSimpleTransfer, &weightMsgEthSimpleTransfer, nil,
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func(_ *rand.Rand) {
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weightMsgEthSimpleTransfer = WeightMsgEthSimpleTransfer
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},
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)
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appParams.GetOrGenerate(cdc, OpWeightMsgEthCreateContract, &weightMsgEthCreateContract, nil,
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func(_ *rand.Rand) {
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weightMsgEthCreateContract = WeightMsgEthCreateContract
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},
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)
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return simulation.WeightedOperations{
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simulation.NewWeightedOperation(
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weightMsgEthSimpleTransfer,
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SimulateEthSimpleTransfer(ak, k),
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),
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simulation.NewWeightedOperation(
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weightMsgEthCreateContract,
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SimulateEthCreateContract(ak, k),
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),
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}
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}
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// SimulateEthSimpleTransfer simulate simple eth account transferring gas token.
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// It randomly choose sender, recipient and transferable amount.
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// Other tx details like nonce, gasprice, gaslimit are calculated to get valid value.
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func SimulateEthSimpleTransfer(ak types.AccountKeeper, k *keeper.Keeper) simtypes.Operation {
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return func(
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r *rand.Rand, bapp *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
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) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
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simAccount, _ := simtypes.RandomAcc(r, accs)
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var recipient simtypes.Account
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if r.Intn(2) == 1 {
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recipient, _ = simtypes.RandomAcc(r, accs)
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} else {
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recipient = simtypes.RandomAccounts(r, 1)[0]
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}
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from := common.BytesToAddress(simAccount.Address)
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to := common.BytesToAddress(recipient.Address)
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simulateContext := &simulateContext{ctx, bapp, r, k}
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return SimulateEthTx(simulateContext, &from, &to, nil, (*hexutil.Bytes)(&[]byte{}), simAccount.PrivKey, nil)
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}
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}
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// SimulateEthCreateContract simulate create an ERC20 contract.
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// It makes operationSimulateEthCallContract the future operations of SimulateEthCreateContract to ensure valid contract call.
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func SimulateEthCreateContract(ak types.AccountKeeper, k *keeper.Keeper) simtypes.Operation {
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return func(
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r *rand.Rand, bapp *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
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) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
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simAccount, _ := simtypes.RandomAcc(r, accs)
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from := common.BytesToAddress(simAccount.Address)
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nonce := k.GetNonce(ctx, from)
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ctorArgs, err := types.ERC20Contract.ABI.Pack("", from, sdk.NewIntWithDecimal(1000, 18).BigInt())
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if err != nil {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "can not pack owner and supply"), nil, err
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}
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data := types.ERC20Contract.Bin
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data = append(data, ctorArgs...)
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simulateContext := &simulateContext{ctx, bapp, r, k}
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fops := make([]simtypes.FutureOperation, 1)
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whenCall := ctx.BlockHeader().Time.Add(time.Duration(r.Intn(maxWaitSeconds)+1) * time.Second)
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contractAddr := crypto.CreateAddress(from, nonce)
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var tokenReceipient simtypes.Account
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if r.Intn(2) == 1 {
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tokenReceipient, _ = simtypes.RandomAcc(r, accs)
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} else {
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tokenReceipient = simtypes.RandomAccounts(r, 1)[0]
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}
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receipientAddr := common.BytesToAddress(tokenReceipient.Address)
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fops[0] = simtypes.FutureOperation{
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BlockTime: whenCall,
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Op: operationSimulateEthCallContract(k, &contractAddr, &receipientAddr, nil),
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}
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return SimulateEthTx(simulateContext, &from, nil, nil, (*hexutil.Bytes)(&data), simAccount.PrivKey, fops)
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}
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}
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// operationSimulateEthCallContract simulate calling an contract.
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// It is always calling an ERC20 contract.
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func operationSimulateEthCallContract(k *keeper.Keeper, contractAddr, to *common.Address, amount *big.Int) simtypes.Operation {
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return func(
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r *rand.Rand, bapp *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
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) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
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simAccount, _ := simtypes.RandomAcc(r, accs)
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from := common.BytesToAddress(simAccount.Address)
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ctorArgs, err := types.ERC20Contract.ABI.Pack("transfer", to, amount)
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if err != nil {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "can not pack method and args"), nil, err
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}
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data := types.ERC20Contract.Bin
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data = append(data, ctorArgs...)
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simulateContext := &simulateContext{ctx, bapp, r, k}
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return SimulateEthTx(simulateContext, &from, contractAddr, nil, (*hexutil.Bytes)(&data), simAccount.PrivKey, nil)
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}
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}
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// SimulateEthTx creates valid ethereum tx and pack it as cosmos tx, and deliver it.
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func SimulateEthTx(
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ctx *simulateContext, from, to *common.Address, amount *big.Int, data *hexutil.Bytes, prv cryptotypes.PrivKey, fops []simtypes.FutureOperation,
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) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
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ethTx, err := CreateRandomValidEthTx(ctx, from, nil, nil, data)
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if err == ErrNoEnoughBalance {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "no enough balance"), nil, nil
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}
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if err != nil {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "can not create valid eth tx"), nil, err
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}
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txConfig := encoding.MakeConfig(module.NewBasicManager()).TxConfig
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txBuilder := txConfig.NewTxBuilder()
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signedTx, err := GetSignedTx(ctx, txBuilder, ethTx, prv)
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if err != nil {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "can not sign ethereum tx"), nil, err
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}
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_, _, err = ctx.bapp.Deliver(txConfig.TxEncoder(), signedTx)
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if err != nil {
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return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgEthereumTx, "failed to deliver tx"), nil, err
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}
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return simtypes.OperationMsg{}, fops, nil
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}
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// CreateRandomValidEthTx create the ethereum tx with valid random values
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func CreateRandomValidEthTx(ctx *simulateContext, from, to *common.Address, amount *big.Int, data *hexutil.Bytes) (ethTx *types.MsgEthereumTx, err error) {
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estimateGas, err := EstimateGas(ctx, from, to, data)
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if err != nil {
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return nil, err
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}
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gasLimit := estimateGas + uint64(ctx.rand.Intn(int(sdktx.MaxGasWanted-estimateGas)))
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ethChainID := ctx.keeper.ChainID()
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chainConfig := ctx.keeper.GetParams(ctx.context).ChainConfig.EthereumConfig(ethChainID)
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gasPrice := ctx.keeper.BaseFee(ctx.context, chainConfig)
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gasFeeCap := new(big.Int).Add(gasPrice, big.NewInt(int64(ctx.rand.Int())))
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gasTipCap := big.NewInt(int64(ctx.rand.Int()))
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nonce := ctx.keeper.GetNonce(ctx.context, *from)
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if amount == nil {
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amount, err = RandomTransferableAmount(ctx, *from, gasLimit, gasFeeCap)
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if err != nil {
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return nil, err
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}
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}
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ethTx = types.NewTx(ethChainID, nonce, to, amount, gasLimit, gasPrice, gasFeeCap, gasTipCap, *data, nil)
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ethTx.From = from.String()
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return ethTx, nil
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}
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// EstimateGas estimates the gas used by quering the keeper.
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func EstimateGas(ctx *simulateContext, from, to *common.Address, data *hexutil.Bytes) (gas uint64, err error) {
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args, err := json.Marshal(&types.TransactionArgs{To: to, From: from, Data: data})
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if err != nil {
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return 0, err
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}
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res, err := ctx.keeper.EstimateGas(sdk.WrapSDKContext(ctx.context), &types.EthCallRequest{
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Args: args,
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GasCap: config.DefaultGasCap,
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})
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if err != nil {
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return 0, err
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}
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return res.Gas, nil
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}
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// RandomTransferableAmount generates a random valid transferable amount.
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// Transferable amount is between the range [0, spendable), spendable = balance - gasFeeCap * GasLimit.
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func RandomTransferableAmount(ctx *simulateContext, address common.Address, gasLimit uint64, gasFeeCap *big.Int) (amount *big.Int, err error) {
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balance := ctx.keeper.GetBalance(ctx.context, address)
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feeLimit := new(big.Int).Mul(gasFeeCap, big.NewInt(int64(gasLimit)))
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if (feeLimit.Cmp(balance)) > 0 {
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return nil, ErrNoEnoughBalance
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}
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spendable := new(big.Int).Sub(balance, feeLimit)
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if spendable.Cmp(big.NewInt(0)) == 0 {
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amount = new(big.Int).Set(spendable)
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return amount, nil
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}
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simAmount, err := simtypes.RandPositiveInt(ctx.rand, sdk.NewIntFromBigInt(spendable))
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if err != nil {
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return nil, err
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}
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amount = simAmount.BigInt()
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return amount, nil
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}
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// GetSignedTx sign the ethereum tx and packs it as a signing.Tx .
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func GetSignedTx(ctx *simulateContext, txBuilder client.TxBuilder, msg *types.MsgEthereumTx, prv cryptotypes.PrivKey) (signedTx signing.Tx, err error) {
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builder, ok := txBuilder.(tx.ExtensionOptionsTxBuilder)
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if !ok {
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return nil, fmt.Errorf("can not initiate ExtensionOptionsTxBuilder")
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}
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option, err := codectypes.NewAnyWithValue(&types.ExtensionOptionsEthereumTx{})
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if err != nil {
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return nil, err
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}
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builder.SetExtensionOptions(option)
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if err := msg.Sign(ethtypes.LatestSignerForChainID(ctx.keeper.ChainID()), tests.NewSigner(prv)); err != nil {
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return nil, err
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}
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if err = builder.SetMsgs(msg); err != nil {
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return nil, err
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}
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txData, err := types.UnpackTxData(msg.Data)
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if err != nil {
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return nil, err
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}
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|
||||
fees := sdk.NewCoins(sdk.NewCoin(ctx.keeper.GetParams(ctx.context).EvmDenom, sdk.NewIntFromBigInt(txData.Fee())))
|
||||
builder.SetFeeAmount(fees)
|
||||
builder.SetGasLimit(msg.GetGas())
|
||||
|
||||
signedTx = builder.GetTx()
|
||||
return signedTx, nil
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package simulation
|
||||
|
||||
// DONTCOVER
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math/rand"
|
||||
|
||||
simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
|
||||
"github.com/cosmos/cosmos-sdk/x/simulation"
|
||||
"github.com/tharsis/ethermint/x/evm/types"
|
||||
)
|
||||
|
||||
const (
|
||||
keyExtraEIPs = "ExtraEIPs"
|
||||
)
|
||||
|
||||
// ParamChanges defines the parameters that can be modified by param change proposals
|
||||
// on the simulation.
|
||||
func ParamChanges(r *rand.Rand) []simtypes.ParamChange {
|
||||
return []simtypes.ParamChange{
|
||||
simulation.NewSimParamChange(types.ModuleName, keyExtraEIPs,
|
||||
func(r *rand.Rand) string {
|
||||
return fmt.Sprintf("\"%d\"", genExtraEIPs(r))
|
||||
},
|
||||
),
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user