/
operations.go
287 lines (242 loc) · 10.3 KB
/
operations.go
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package simulation
import (
"fmt"
"math/rand"
"github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/simapp/helpers"
simappparams "github.com/cosmos/cosmos-sdk/simapp/params"
sdk "github.com/cosmos/cosmos-sdk/types"
simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
"github.com/cosmos/cosmos-sdk/x/distribution/keeper"
"github.com/cosmos/cosmos-sdk/x/distribution/types"
"github.com/cosmos/cosmos-sdk/x/simulation"
stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
)
// Simulation operation weights constants
const (
OpWeightMsgSetWithdrawAddress = "op_weight_msg_set_withdraw_address"
OpWeightMsgWithdrawDelegationReward = "op_weight_msg_withdraw_delegation_reward"
OpWeightMsgWithdrawValidatorCommission = "op_weight_msg_withdraw_validator_commission"
OpWeightMsgFundCommunityPool = "op_weight_msg_fund_community_pool"
)
// WeightedOperations returns all the operations from the module with their respective weights
func WeightedOperations(
appParams simtypes.AppParams, cdc codec.JSONMarshaler, ak types.AccountKeeper,
bk types.BankKeeper, k keeper.Keeper, sk stakingkeeper.Keeper,
) simulation.WeightedOperations {
var weightMsgSetWithdrawAddress int
appParams.GetOrGenerate(cdc, OpWeightMsgSetWithdrawAddress, &weightMsgSetWithdrawAddress, nil,
func(_ *rand.Rand) {
weightMsgSetWithdrawAddress = simappparams.DefaultWeightMsgSetWithdrawAddress
},
)
var weightMsgWithdrawDelegationReward int
appParams.GetOrGenerate(cdc, OpWeightMsgWithdrawDelegationReward, &weightMsgWithdrawDelegationReward, nil,
func(_ *rand.Rand) {
weightMsgWithdrawDelegationReward = simappparams.DefaultWeightMsgWithdrawDelegationReward
},
)
var weightMsgWithdrawValidatorCommission int
appParams.GetOrGenerate(cdc, OpWeightMsgWithdrawValidatorCommission, &weightMsgWithdrawValidatorCommission, nil,
func(_ *rand.Rand) {
weightMsgWithdrawValidatorCommission = simappparams.DefaultWeightMsgWithdrawValidatorCommission
},
)
var weightMsgFundCommunityPool int
appParams.GetOrGenerate(cdc, OpWeightMsgFundCommunityPool, &weightMsgFundCommunityPool, nil,
func(_ *rand.Rand) {
weightMsgFundCommunityPool = simappparams.DefaultWeightMsgFundCommunityPool
},
)
return simulation.WeightedOperations{
simulation.NewWeightedOperation(
weightMsgSetWithdrawAddress,
SimulateMsgSetWithdrawAddress(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgWithdrawDelegationReward,
SimulateMsgWithdrawDelegatorReward(ak, bk, k, sk),
),
simulation.NewWeightedOperation(
weightMsgWithdrawValidatorCommission,
SimulateMsgWithdrawValidatorCommission(ak, bk, k, sk),
),
simulation.NewWeightedOperation(
weightMsgFundCommunityPool,
SimulateMsgFundCommunityPool(ak, bk, k, sk),
),
}
}
// SimulateMsgSetWithdrawAddress generates a MsgSetWithdrawAddress with random values.
func SimulateMsgSetWithdrawAddress(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
if !k.GetWithdrawAddrEnabled(ctx) {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgSetWithdrawAddress, "withdrawal is not enabled"), nil, nil
}
simAccount, _ := simtypes.RandomAcc(r, accs)
simToAccount, _ := simtypes.RandomAcc(r, accs)
account := ak.GetAccount(ctx, simAccount.Address)
spendable := bk.SpendableCoins(ctx, account.GetAddress())
fees, err := simtypes.RandomFees(r, ctx, spendable)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgSetWithdrawAddress, "unable to generate fees"), nil, err
}
msg := types.NewMsgSetWithdrawAddress(simAccount.Address, simToAccount.Address)
txGen := simappparams.MakeTestEncodingConfig().TxConfig
tx, err := helpers.GenTx(
txGen,
[]sdk.Msg{msg},
fees,
helpers.DefaultGenTxGas,
chainID,
[]uint64{account.GetAccountNumber()},
[]uint64{account.GetSequence()},
simAccount.PrivKey,
)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to generate mock tx"), nil, err
}
_, _, err = app.Deliver(txGen.TxEncoder(), tx)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to deliver tx"), nil, err
}
return simtypes.NewOperationMsg(msg, true, ""), nil, nil
}
}
// SimulateMsgWithdrawDelegatorReward generates a MsgWithdrawDelegatorReward with random values.
func SimulateMsgWithdrawDelegatorReward(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper, sk stakingkeeper.Keeper) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, _ := simtypes.RandomAcc(r, accs)
delegations := sk.GetAllDelegatorDelegations(ctx, simAccount.Address)
if len(delegations) == 0 {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawDelegatorReward, "number of delegators equal 0"), nil, nil
}
delegation := delegations[r.Intn(len(delegations))]
validator := sk.Validator(ctx, delegation.GetValidatorAddr())
if validator == nil {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawDelegatorReward, "validator is nil"), nil, fmt.Errorf("validator %s not found", delegation.GetValidatorAddr())
}
account := ak.GetAccount(ctx, simAccount.Address)
spendable := bk.SpendableCoins(ctx, account.GetAddress())
fees, err := simtypes.RandomFees(r, ctx, spendable)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawDelegatorReward, "unable to generate fees"), nil, err
}
msg := types.NewMsgWithdrawDelegatorReward(simAccount.Address, validator.GetOperator())
txGen := simappparams.MakeTestEncodingConfig().TxConfig
tx, err := helpers.GenTx(
txGen,
[]sdk.Msg{msg},
fees,
helpers.DefaultGenTxGas,
chainID,
[]uint64{account.GetAccountNumber()},
[]uint64{account.GetSequence()},
simAccount.PrivKey,
)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to generate mock tx"), nil, err
}
_, _, err = app.Deliver(txGen.TxEncoder(), tx)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to deliver tx"), nil, err
}
return simtypes.NewOperationMsg(msg, true, ""), nil, nil
}
}
// SimulateMsgWithdrawValidatorCommission generates a MsgWithdrawValidatorCommission with random values.
func SimulateMsgWithdrawValidatorCommission(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper, sk stakingkeeper.Keeper) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
validator, ok := stakingkeeper.RandomValidator(r, sk, ctx)
if !ok {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawValidatorCommission, "random validator is not ok"), nil, nil
}
commission := k.GetValidatorAccumulatedCommission(ctx, validator.GetOperator())
if commission.Commission.IsZero() {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawValidatorCommission, "validator commission is zero"), nil, nil
}
simAccount, found := simtypes.FindAccount(accs, sdk.AccAddress(validator.GetOperator()))
if !found {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawValidatorCommission, "could not find account"), nil, fmt.Errorf("validator %s not found", validator.GetOperator())
}
account := ak.GetAccount(ctx, simAccount.Address)
spendable := bk.SpendableCoins(ctx, account.GetAddress())
fees, err := simtypes.RandomFees(r, ctx, spendable)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgWithdrawValidatorCommission, "unable to generate fees"), nil, err
}
msg := types.NewMsgWithdrawValidatorCommission(validator.GetOperator())
txGen := simappparams.MakeTestEncodingConfig().TxConfig
tx, err := helpers.GenTx(
txGen,
[]sdk.Msg{msg},
fees,
helpers.DefaultGenTxGas,
chainID,
[]uint64{account.GetAccountNumber()},
[]uint64{account.GetSequence()},
simAccount.PrivKey,
)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to generate mock tx"), nil, err
}
_, _, err = app.Deliver(txGen.TxEncoder(), tx)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to deliver tx"), nil, err
}
return simtypes.NewOperationMsg(msg, true, ""), nil, nil
}
}
// SimulateMsgFundCommunityPool simulates MsgFundCommunityPool execution where
// a random account sends a random amount of its funds to the community pool.
func SimulateMsgFundCommunityPool(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper, sk stakingkeeper.Keeper) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context, accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
funder, _ := simtypes.RandomAcc(r, accs)
account := ak.GetAccount(ctx, funder.Address)
spendable := bk.SpendableCoins(ctx, account.GetAddress())
fundAmount := simtypes.RandSubsetCoins(r, spendable)
if fundAmount.Empty() {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgFundCommunityPool, "fund amount is empty"), nil, nil
}
var (
fees sdk.Coins
err error
)
coins, hasNeg := spendable.SafeSub(fundAmount)
if !hasNeg {
fees, err = simtypes.RandomFees(r, ctx, coins)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgFundCommunityPool, "unable to generate fees"), nil, err
}
}
msg := types.NewMsgFundCommunityPool(fundAmount, funder.Address)
txGen := simappparams.MakeTestEncodingConfig().TxConfig
tx, err := helpers.GenTx(
txGen,
[]sdk.Msg{msg},
fees,
helpers.DefaultGenTxGas,
chainID,
[]uint64{account.GetAccountNumber()},
[]uint64{account.GetSequence()},
funder.PrivKey,
)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to generate mock tx"), nil, err
}
_, _, err = app.Deliver(txGen.TxEncoder(), tx)
if err != nil {
return simtypes.NoOpMsg(types.ModuleName, msg.Type(), "unable to deliver tx"), nil, err
}
return simtypes.NewOperationMsg(msg, true, ""), nil, nil
}
}