Revert "chore(backport): Simulation is not deterministic due to GenTx…

… (backport #356) (#362)"

This reverts commit f075384.

simapp/helpers/test_helpers.go

@@ -2,6 +2,7 @@ package helpers
 
 import (
 	"math/rand"
+	"time"
 
 	"github.com/cosmos/cosmos-sdk/client"
 	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
@@ -15,15 +16,17 @@ import (
 // TODO: Implement a tool to check for gas growth. For now,
 // we must increase this across the board for longer runs to work
 const (
-	DefaultGenTxGas uint64 = 2000000
-	SimAppChainID          = "simulation-app"
+	DefaultGenTxGas = 2000000
+	SimAppChainID   = "simulation-app"
 )
 
 // GenTx generates a signed mock transaction.
-func GenTx(r *rand.Rand, gen client.TxConfig, msgs []sdk.Msg, feeAmt sdk.Coins, gas uint64, chainID string, accNums, accSeqs []uint64, priv ...cryptotypes.PrivKey) (sdk.Tx, error) {
+func GenTx(gen client.TxConfig, msgs []sdk.Msg, feeAmt sdk.Coins, gas uint64, chainID string, accNums, accSeqs []uint64, priv ...cryptotypes.PrivKey) (sdk.Tx, error) {
 	sigs := make([]signing.SignatureV2, len(priv))
 
 	// create a random length memo
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+
 	memo := simulation.RandStringOfLength(r, simulation.RandIntBetween(r, 0, 100))
 
 	signMode := gen.SignModeHandler().DefaultMode()

simapp/test_helpers.go

@@ -5,7 +5,6 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
-	"math/rand"
 	"strconv"
 	"testing"
 	"time"
@@ -331,7 +330,6 @@ func SignCheckDeliver(
 ) (sdk.GasInfo, *sdk.Result, error) {
 
 	tx, err := helpers.GenTx(
-		rand.New(rand.NewSource(time.Now().UnixNano())),
 		txCfg,
 		msgs,
 		sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},
@@ -382,7 +380,6 @@ func GenSequenceOfTxs(txGen client.TxConfig, msgs []sdk.Msg, accNums []uint64, i
 	var err error
 	for i := 0; i < numToGenerate; i++ {
 		txs[i], err = helpers.GenTx(
-			rand.New(rand.NewSource(time.Now().UnixNano())),
 			txGen,
 			msgs,
 			sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},

x/authz/simulation/operations.go

@@ -116,7 +116,6 @@ func SimulateMsgGrant(ak authz.AccountKeeper, bk authz.BankKeeper, _ keeper.Keep
 		}
 		txCfg := simappparams.MakeTestEncodingConfig().TxConfig
 		tx, err := helpers.GenTx(
-			r,
 			txCfg,
 			[]sdk.Msg{msg},
 			fees,
@@ -184,7 +183,6 @@ func SimulateMsgRevoke(ak authz.AccountKeeper, bk authz.BankKeeper, k keeper.Kee
 		txCfg := simappparams.MakeTestEncodingConfig().TxConfig
 		account := ak.GetAccount(ctx, granterAddr)
 		tx, err := helpers.GenTx(
-			r,
 			txCfg,
 			[]sdk.Msg{&msg},
 			fees,
@@ -239,10 +237,7 @@ func SimulateMsgExec(ak authz.AccountKeeper, bk authz.BankKeeper, k keeper.Keepe
 
 		granterspendableCoins := bk.SpendableCoins(ctx, granterAddr)
 		coins := simtypes.RandSubsetCoins(r, granterspendableCoins)
-		// if coins slice is empty, we can not create valid banktype.MsgSend
-		if len(coins) == 0 {
-			return simtypes.NoOpMsg(authz.ModuleName, TypeMsgExec, "empty coins slice"), nil, nil
-		}
+
 		// Check send_enabled status of each sent coin denom
 		if err := bk.IsSendEnabledCoins(ctx, coins...); err != nil {
 			return simtypes.NoOpMsg(authz.ModuleName, TypeMsgExec, err.Error()), nil, nil
@@ -278,7 +273,6 @@ func SimulateMsgExec(ak authz.AccountKeeper, bk authz.BankKeeper, k keeper.Keepe
 		granteeAcc := ak.GetAccount(ctx, granteeAddr)
 
 		tx, err := helpers.GenTx(
-			r,
 			txCfg,
 			[]sdk.Msg{&msgExec},
 			fees,

x/bank/simulation/operations.go

@@ -60,10 +60,6 @@ func SimulateMsgSend(ak types.AccountKeeper, bk keeper.Keeper) simtypes.Operatio
 		accs []simtypes.Account, chainID string,
 	) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
 		from, to, coins, skip := randomSendFields(r, ctx, accs, bk, ak)
-		// if coins slice is empty, we can not create valid types.MsgSend
-		if len(coins) == 0 {
-			return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgSend, "empty coins slice"), nil, nil
-		}
 
 		// Check send_enabled status of each coin denom
 		if err := bk.IsSendEnabledCoins(ctx, coins...); err != nil {
@@ -98,10 +94,6 @@ func SimulateMsgSendToModuleAccount(ak types.AccountKeeper, bk keeper.Keeper, mo
 
 		spendable := bk.SpendableCoins(ctx, from.Address)
 		coins := simtypes.RandSubsetCoins(r, spendable)
-		// if coins slice is empty, we can not create valid types.MsgSend
-		if len(coins) == 0 {
-			return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgSend, "empty coins slice"), nil, nil
-		}
 
 		// Check send_enabled status of each coin denom
 		if err := bk.IsSendEnabledCoins(ctx, coins...); err != nil {
@@ -148,7 +140,6 @@ func sendMsgSend(
 	}
 	txGen := simappparams.MakeTestEncodingConfig().TxConfig
 	tx, err := helpers.GenTx(
-		r,
 		txGen,
 		[]sdk.Msg{msg},
 		fees,
@@ -372,7 +363,6 @@ func sendMsgMultiSend(
 
 	txGen := simappparams.MakeTestEncodingConfig().TxConfig
 	tx, err := helpers.GenTx(
-		r,
 		txGen,
 		[]sdk.Msg{msg},
 		fees,

x/distribution/simulation/operations.go

@@ -234,7 +234,6 @@ func SimulateMsgFundCommunityPool(ak types.AccountKeeper, bk types.BankKeeper, k
 		msg := types.NewMsgFundCommunityPool(fundAmount, funder.Address)
 
 		txCtx := simulation.OperationInput{
-			R:             r,
 			App:           app,
 			TxGen:         simappparams.MakeTestEncodingConfig().TxConfig,
 			Cdc:           nil,

x/genutil/gentx_test.go

@@ -3,9 +3,7 @@ package genutil_test
 import (
 	"encoding/json"
 	"fmt"
-	"math/rand"
 	"testing"
-	"time"
 
 	"github.com/stretchr/testify/suite"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
@@ -236,7 +234,6 @@ func (suite *GenTxTestSuite) TestDeliverGenTxs() {
 
 				msg := banktypes.NewMsgSend(addr1, addr2, sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 1)})
 				tx, err := helpers.GenTx(
-					rand.New(rand.NewSource(time.Now().UnixNano())),
 					suite.encodingConfig.TxConfig,
 					[]sdk.Msg{msg},
 					sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 10)},

x/gov/simulation/operations.go

@@ -159,7 +159,6 @@ func SimulateMsgSubmitProposal(
 
 		txGen := simappparams.MakeTestEncodingConfig().TxConfig
 		tx, err := helpers.GenTx(
-			r,
 			txGen,
 			[]sdk.Msg{msg},
 			fees,
@@ -247,7 +246,6 @@ func SimulateMsgDeposit(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Ke
 		}
 
 		txCtx := simulation.OperationInput{
-			R:             r,
 			App:           app,
 			TxGen:         simappparams.MakeTestEncodingConfig().TxConfig,
 			Cdc:           nil,

x/simulation/util.go

@@ -102,7 +102,6 @@ func GenAndDeliverTxWithRandFees(txCtx OperationInput) (simtypes.OperationMsg, [
 func GenAndDeliverTx(txCtx OperationInput, fees sdk.Coins) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
 	account := txCtx.AccountKeeper.GetAccount(txCtx.Context, txCtx.SimAccount.Address)
 	tx, err := helpers.GenTx(
-		txCtx.R,
 		txCtx.TxGen,
 		[]sdk.Msg{txCtx.Msg},
 		fees,

x/slashing/simulation/operations.go

@@ -91,7 +91,6 @@ func SimulateMsgUnjail(ak types.AccountKeeper, bk types.BankKeeper, k keeper.Kee
 
 		txGen := simappparams.MakeTestEncodingConfig().TxConfig
 		tx, err := helpers.GenTx(
-			r,
 			txGen,
 			[]sdk.Msg{msg},
 			fees,

x/staking/simulation/operations.go

@@ -153,7 +153,6 @@ func SimulateMsgCreateValidator(ak types.AccountKeeper, bk types.BankKeeper, k k
 		}
 
 		txCtx := simulation.OperationInput{
-			R:             r,
 			App:           app,
 			TxGen:         simappparams.MakeTestEncodingConfig().TxConfig,
 			Cdc:           nil,
@@ -279,7 +278,6 @@ func SimulateMsgDelegate(ak types.AccountKeeper, bk types.BankKeeper, k keeper.K
 		msg := types.NewMsgDelegate(simAccount.Address, val.GetOperator(), bondAmt)
 
 		txCtx := simulation.OperationInput{
-			R:             r,
 			App:           app,
 			TxGen:         simappparams.MakeTestEncodingConfig().TxConfig,
 			Cdc:           nil,