laconicd/app/simulation_test.go

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package app
// TODO: COsmos SDK fix for the simulator issue for custom keys
import (
"encoding/json"
"fmt"
"math/rand"
"os"
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"runtime/debug"
"strings"
"testing"
"github.com/stretchr/testify/require"
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"github.com/cerc-io/laconicd/app/ante"
evmenc "github.com/cerc-io/laconicd/encoding"
"github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/simapp"
"github.com/cosmos/cosmos-sdk/simapp/params"
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"github.com/cosmos/cosmos-sdk/store"
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storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
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authzkeeper "github.com/cosmos/cosmos-sdk/x/authz/keeper"
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
distrtypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
evidencetypes "github.com/cosmos/cosmos-sdk/x/evidence/types"
govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"github.com/cosmos/cosmos-sdk/x/simulation"
slashingtypes "github.com/cosmos/cosmos-sdk/x/slashing/types"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
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ibctransfertypes "github.com/cosmos/ibc-go/v5/modules/apps/transfer/types"
ibchost "github.com/cosmos/ibc-go/v5/modules/core/24-host"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/log"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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dbm "github.com/tendermint/tm-db"
)
// MakeEncodingConfig creates the EncodingConfig
func MakeEncodingConfig() params.EncodingConfig {
return evmenc.MakeConfig(ModuleBasics)
}
func init() {
simapp.GetSimulatorFlags()
}
const SimAppChainID = "simulation_777-1"
type storeKeysPrefixes struct {
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A storetypes.StoreKey
B storetypes.StoreKey
Prefixes [][]byte
}
// fauxMerkleModeOpt returns a BaseApp option to use a dbStoreAdapter instead of
// an IAVLStore for faster simulation speed.
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func fauxMerkleModeOpt(bapp *baseapp.BaseApp) {
bapp.SetFauxMerkleMode()
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}
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// NewSimApp disable feemarket on native tx, otherwise the cosmos-sdk simulation tests will fail.
func NewSimApp(logger log.Logger, db dbm.DB) (*EthermintApp, error) {
encodingConfig := MakeEncodingConfig()
app := NewEthermintApp(logger, db, nil, false, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, encodingConfig, simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
// disable feemarket on native tx
anteHandler, err := ante.NewAnteHandler(ante.HandlerOptions{
AccountKeeper: app.AccountKeeper,
BankKeeper: app.BankKeeper,
SignModeHandler: encodingConfig.TxConfig.SignModeHandler(),
FeegrantKeeper: app.FeeGrantKeeper,
SigGasConsumer: ante.DefaultSigVerificationGasConsumer,
IBCKeeper: app.IBCKeeper,
EvmKeeper: app.EvmKeeper,
FeeMarketKeeper: app.FeeMarketKeeper,
MaxTxGasWanted: 0,
})
if err != nil {
return nil, err
}
app.SetAnteHandler(anteHandler)
if err := app.LoadLatestVersion(); err != nil {
return nil, err
}
return app, nil
}
// interBlockCacheOpt returns a BaseApp option function that sets the persistent
// inter-block write-through cache.
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func interBlockCacheOpt() func(*baseapp.BaseApp) {
return baseapp.SetInterBlockCache(store.NewCommitKVStoreCacheManager())
}
func TestFullAppSimulation(t *testing.T) {
config, db, dir, logger, skip, err := simapp.SetupSimulation("leveldb-app-sim", "Simulation")
if skip {
t.Skip("skipping application simulation")
}
require.NoError(t, err, "simulation setup failed")
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config.ChainID = SimAppChainID
defer func() {
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require.NoError(t, db.Close())
require.NoError(t, os.RemoveAll(dir))
}()
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app, err := NewSimApp(logger, db)
require.Equal(t, appName, app.Name())
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require.NoError(t, err)
// run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t,
os.Stdout,
app.BaseApp,
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StateFn(app.AppCodec(), app.SimulationManager()),
RandomAccounts, // Replace with own random account function if using keys other than secp256k1
simapp.SimulationOperations(app, app.AppCodec(), config),
app.ModuleAccountAddrs(),
config,
app.AppCodec(),
)
// export state and simParams before the simulation error is checked
err = simapp.CheckExportSimulation(app, config, simParams)
require.NoError(t, err)
require.NoError(t, simErr)
if config.Commit {
simapp.PrintStats(db)
}
}
func TestAppImportExport(t *testing.T) {
config, db, dir, logger, skip, err := simapp.SetupSimulation("leveldb-app-sim", "Simulation")
if skip {
t.Skip("skipping application import/export simulation")
}
require.NoError(t, err, "simulation setup failed")
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config.ChainID = SimAppChainID
defer func() {
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require.NoError(t, db.Close())
require.NoError(t, os.RemoveAll(dir))
}()
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app, err := NewSimApp(logger, db)
require.NoError(t, err)
require.Equal(t, appName, app.Name())
// Run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t,
os.Stdout,
app.BaseApp,
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StateFn(app.AppCodec(), app.SimulationManager()),
RandomAccounts, // Replace with own random account function if using keys other than secp256k1
simapp.SimulationOperations(app, app.AppCodec(), config),
app.ModuleAccountAddrs(),
config,
app.AppCodec(),
)
// export state and simParams before the simulation error is checked
err = simapp.CheckExportSimulation(app, config, simParams)
require.NoError(t, err)
require.NoError(t, simErr)
if config.Commit {
simapp.PrintStats(db)
}
fmt.Printf("exporting genesis...\n")
exported, err := app.ExportAppStateAndValidators(false, []string{})
require.NoError(t, err)
fmt.Printf("importing genesis...\n")
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//nolint: dogsled
_, newDB, newDir, _, _, err := simapp.SetupSimulation("leveldb-app-sim-2", "Simulation-2")
require.NoError(t, err, "simulation setup failed")
defer func() {
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require.NoError(t, newDB.Close())
require.NoError(t, os.RemoveAll(newDir))
}()
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newApp, err := NewSimApp(log.NewNopLogger(), newDB)
require.Equal(t, appName, newApp.Name())
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require.NoError(t, err)
var genesisState simapp.GenesisState
err = json.Unmarshal(exported.AppState, &genesisState)
require.NoError(t, err)
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defer func() {
if r := recover(); r != nil {
err := fmt.Sprintf("%v", r)
if !strings.Contains(err, "validator set is empty after InitGenesis") {
panic(r)
}
logger.Info("Skipping simulation as all validators have been unbonded")
logger.Info("err", err, "stacktrace", string(debug.Stack()))
}
}()
ctxA := app.NewContext(true, tmproto.Header{Height: app.LastBlockHeight(), ChainID: SimAppChainID})
ctxB := newApp.NewContext(true, tmproto.Header{Height: app.LastBlockHeight(), ChainID: SimAppChainID})
newApp.mm.InitGenesis(ctxB, app.AppCodec(), genesisState)
newApp.StoreConsensusParams(ctxB, exported.ConsensusParams)
fmt.Printf("comparing stores...\n")
storeKeysPrefixes := []storeKeysPrefixes{
{app.keys[authtypes.StoreKey], newApp.keys[authtypes.StoreKey], [][]byte{}},
{
app.keys[stakingtypes.StoreKey], newApp.keys[stakingtypes.StoreKey],
[][]byte{
stakingtypes.UnbondingQueueKey, stakingtypes.RedelegationQueueKey, stakingtypes.ValidatorQueueKey,
stakingtypes.HistoricalInfoKey,
},
}, // ordering may change but it doesn't matter
{app.keys[slashingtypes.StoreKey], newApp.keys[slashingtypes.StoreKey], [][]byte{}},
{app.keys[minttypes.StoreKey], newApp.keys[minttypes.StoreKey], [][]byte{}},
{app.keys[distrtypes.StoreKey], newApp.keys[distrtypes.StoreKey], [][]byte{}},
{app.keys[banktypes.StoreKey], newApp.keys[banktypes.StoreKey], [][]byte{banktypes.BalancesPrefix}},
{app.keys[paramtypes.StoreKey], newApp.keys[paramtypes.StoreKey], [][]byte{}},
{app.keys[govtypes.StoreKey], newApp.keys[govtypes.StoreKey], [][]byte{}},
{app.keys[evidencetypes.StoreKey], newApp.keys[evidencetypes.StoreKey], [][]byte{}},
{app.keys[capabilitytypes.StoreKey], newApp.keys[capabilitytypes.StoreKey], [][]byte{}},
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{app.keys[authzkeeper.StoreKey], newApp.keys[authzkeeper.StoreKey], [][]byte{authzkeeper.GrantKey, authzkeeper.GrantQueuePrefix}},
{app.keys[ibchost.StoreKey], newApp.keys[ibchost.StoreKey], [][]byte{}},
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{app.keys[ibctransfertypes.StoreKey], newApp.keys[ibctransfertypes.StoreKey], [][]byte{}},
}
for _, skp := range storeKeysPrefixes {
storeA := ctxA.KVStore(skp.A)
storeB := ctxB.KVStore(skp.B)
failedKVAs, failedKVBs := sdk.DiffKVStores(storeA, storeB, skp.Prefixes)
require.Equal(t, len(failedKVAs), len(failedKVBs), "unequal sets of key-values to compare")
fmt.Printf("compared %d different key/value pairs between %s and %s\n", len(failedKVAs), skp.A, skp.B)
require.Equal(t, len(failedKVAs), 0, simapp.GetSimulationLog(skp.A.Name(), app.SimulationManager().StoreDecoders, failedKVAs, failedKVBs))
}
}
func TestAppSimulationAfterImport(t *testing.T) {
config, db, dir, logger, skip, err := simapp.SetupSimulation("leveldb-app-sim", "Simulation")
if skip {
t.Skip("skipping application simulation after import")
}
require.NoError(t, err, "simulation setup failed")
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config.ChainID = SimAppChainID
defer func() {
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require.NoError(t, db.Close())
require.NoError(t, os.RemoveAll(dir))
}()
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app, err := NewSimApp(logger, db)
require.Equal(t, appName, app.Name())
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require.NoError(t, err)
// Run randomized simulation
stopEarly, simParams, simErr := simulation.SimulateFromSeed(
t,
os.Stdout,
app.BaseApp,
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StateFn(app.AppCodec(), app.SimulationManager()),
RandomAccounts, // Replace with own random account function if using keys other than secp256k1
simapp.SimulationOperations(app, app.AppCodec(), config),
app.ModuleAccountAddrs(),
config,
app.AppCodec(),
)
// export state and simParams before the simulation error is checked
err = simapp.CheckExportSimulation(app, config, simParams)
require.NoError(t, err)
require.NoError(t, simErr)
if config.Commit {
simapp.PrintStats(db)
}
if stopEarly {
fmt.Println("can't export or import a zero-validator genesis, exiting test...")
return
}
fmt.Printf("exporting genesis...\n")
exported, err := app.ExportAppStateAndValidators(true, []string{})
require.NoError(t, err)
fmt.Printf("importing genesis...\n")
_, newDB, newDir, _, _, err := simapp.SetupSimulation("leveldb-app-sim-2", "Simulation-2")
require.NoError(t, err, "simulation setup failed")
defer func() {
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require.NoError(t, newDB.Close())
require.NoError(t, os.RemoveAll(newDir))
}()
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newApp, err := NewSimApp(log.NewNopLogger(), newDB)
require.Equal(t, appName, newApp.Name())
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require.NoError(t, err)
newApp.InitChain(abci.RequestInitChain{
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ChainId: SimAppChainID,
AppStateBytes: exported.AppState,
})
_, _, err = simulation.SimulateFromSeed(
t,
os.Stdout,
newApp.BaseApp,
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StateFn(app.AppCodec(), app.SimulationManager()),
RandomAccounts, // Replace with own random account function if using keys other than secp256k1
simapp.SimulationOperations(newApp, newApp.AppCodec(), config),
app.ModuleAccountAddrs(),
config,
app.AppCodec(),
)
require.NoError(t, err)
}
// TODO: Make another test for the fuzzer itself, which just has noOp txs
// and doesn't depend on the application.
func TestAppStateDeterminism(t *testing.T) {
if !simapp.FlagEnabledValue {
t.Skip("skipping application simulation")
}
config := simapp.NewConfigFromFlags()
config.InitialBlockHeight = 1
config.ExportParamsPath = ""
config.OnOperation = false
config.AllInvariants = false
config.ChainID = SimAppChainID
numSeeds := 3
numTimesToRunPerSeed := 5
appHashList := make([]json.RawMessage, numTimesToRunPerSeed)
for i := 0; i < numSeeds; i++ {
config.Seed = rand.Int63()
for j := 0; j < numTimesToRunPerSeed; j++ {
var logger log.Logger
if simapp.FlagVerboseValue {
logger = log.TestingLogger()
} else {
logger = log.NewNopLogger()
}
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db := dbm.NewMemDB()
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app, err := NewSimApp(logger, db)
require.NoError(t, err)
fmt.Printf(
"running non-determinism simulation; seed %d: %d/%d, attempt: %d/%d\n",
config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
)
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_, _, err = simulation.SimulateFromSeed(
t,
os.Stdout,
app.BaseApp,
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StateFn(app.AppCodec(), app.SimulationManager()),
RandomAccounts, // Replace with own random account function if using keys other than secp256k1
simapp.SimulationOperations(app, app.AppCodec(), config),
app.ModuleAccountAddrs(),
config,
app.AppCodec(),
)
require.NoError(t, err)
if config.Commit {
simapp.PrintStats(db)
}
appHash := app.LastCommitID().Hash
appHashList[j] = appHash
if j != 0 {
require.Equal(
t, string(appHashList[0]), string(appHashList[j]),
"non-determinism in seed %d: %d/%d, attempt: %d/%d\n", config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
)
}
}
}
}