cosmos-sdk/simapp/sim_test.go

713 lines
19 KiB
Go

package simapp
import (
"encoding/json"
"fmt"
"io/ioutil"
"math/rand"
"os"
"testing"
"github.com/stretchr/testify/require"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/log"
dbm "github.com/tendermint/tm-db"
"github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/store"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/auth"
authsimops "github.com/cosmos/cosmos-sdk/x/auth/simulation/operations"
banksimops "github.com/cosmos/cosmos-sdk/x/bank/simulation/operations"
distr "github.com/cosmos/cosmos-sdk/x/distribution"
distrsimops "github.com/cosmos/cosmos-sdk/x/distribution/simulation/operations"
"github.com/cosmos/cosmos-sdk/x/gov"
govsimops "github.com/cosmos/cosmos-sdk/x/gov/simulation/operations"
"github.com/cosmos/cosmos-sdk/x/mint"
"github.com/cosmos/cosmos-sdk/x/params"
paramsimops "github.com/cosmos/cosmos-sdk/x/params/simulation/operations"
"github.com/cosmos/cosmos-sdk/x/simulation"
"github.com/cosmos/cosmos-sdk/x/slashing"
slashingsimops "github.com/cosmos/cosmos-sdk/x/slashing/simulation/operations"
"github.com/cosmos/cosmos-sdk/x/staking"
stakingsimops "github.com/cosmos/cosmos-sdk/x/staking/simulation/operations"
"github.com/cosmos/cosmos-sdk/x/supply"
)
// Get flags every time the simulator is run
func init() {
GetSimulatorFlags()
}
// TODO: add description
func testAndRunTxs(app *SimApp, config simulation.Config) []simulation.WeightedOperation {
ap := make(simulation.AppParams)
paramChanges := app.sm.GenerateParamChanges(config.Seed)
if config.ParamsFile != "" {
bz, err := ioutil.ReadFile(config.ParamsFile)
if err != nil {
panic(err)
}
app.cdc.MustUnmarshalJSON(bz, &ap)
}
// nolint: govet
return []simulation.WeightedOperation{
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightDeductFee, &v, nil,
func(_ *rand.Rand) {
v = 5
})
return v
}(nil),
authsimops.SimulateDeductFee(app.AccountKeeper, app.SupplyKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgSend, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
banksimops.SimulateMsgSend(app.AccountKeeper, app.BankKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightSingleInputMsgMultiSend, &v, nil,
func(_ *rand.Rand) {
v = 10
})
return v
}(nil),
banksimops.SimulateSingleInputMsgMultiSend(app.AccountKeeper, app.BankKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgSetWithdrawAddress, &v, nil,
func(_ *rand.Rand) {
v = 50
})
return v
}(nil),
distrsimops.SimulateMsgSetWithdrawAddress(app.DistrKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgWithdrawDelegationReward, &v, nil,
func(_ *rand.Rand) {
v = 50
})
return v
}(nil),
distrsimops.SimulateMsgWithdrawDelegatorReward(app.DistrKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgWithdrawValidatorCommission, &v, nil,
func(_ *rand.Rand) {
v = 50
})
return v
}(nil),
distrsimops.SimulateMsgWithdrawValidatorCommission(app.DistrKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightSubmitVotingSlashingTextProposal, &v, nil,
func(_ *rand.Rand) {
v = 5
})
return v
}(nil),
govsimops.SimulateSubmittingVotingAndSlashingForProposal(app.GovKeeper, govsimops.SimulateTextProposalContent),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightSubmitVotingSlashingCommunitySpendProposal, &v, nil,
func(_ *rand.Rand) {
v = 5
})
return v
}(nil),
govsimops.SimulateSubmittingVotingAndSlashingForProposal(app.GovKeeper, distrsimops.SimulateCommunityPoolSpendProposalContent(app.DistrKeeper)),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightSubmitVotingSlashingParamChangeProposal, &v, nil,
func(_ *rand.Rand) {
v = 5
})
return v
}(nil),
govsimops.SimulateSubmittingVotingAndSlashingForProposal(app.GovKeeper, paramsimops.SimulateParamChangeProposalContent(paramChanges)),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgDeposit, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
govsimops.SimulateMsgDeposit(app.GovKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgCreateValidator, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
stakingsimops.SimulateMsgCreateValidator(app.AccountKeeper, app.StakingKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgEditValidator, &v, nil,
func(_ *rand.Rand) {
v = 5
})
return v
}(nil),
stakingsimops.SimulateMsgEditValidator(app.StakingKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgDelegate, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
stakingsimops.SimulateMsgDelegate(app.AccountKeeper, app.StakingKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgUndelegate, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
stakingsimops.SimulateMsgUndelegate(app.AccountKeeper, app.StakingKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgBeginRedelegate, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
stakingsimops.SimulateMsgBeginRedelegate(app.AccountKeeper, app.StakingKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgUnjail, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
slashingsimops.SimulateMsgUnjail(app.SlashingKeeper),
},
// {
// func(_ *rand.Rand) int {
// var v int
// ap.GetOrGenerate(app.cdc, OpWeightMsgTransferNFT, &v, nil,
// func(_ *rand.Rand) {
// v = 33
// })
// return v
// }(nil),
// nftsimops.SimulateMsgTransferNFT(app.NFTKeeper),
// },
// {
// func(_ *rand.Rand) int {
// var v int
// ap.GetOrGenerate(app.cdc, OpWeightMsgEditNFTMetadata, &v, nil,
// func(_ *rand.Rand) {
// v = 5
// })
// return v
// }(nil),
// nftsimops.SimulateMsgEditNFTMetadata(app.NFTKeeper),
// },
// {
// func(_ *rand.Rand) int {
// var v int
// ap.GetOrGenerate(app.cdc, OpWeightMsgMintNFT, &v, nil,
// func(_ *rand.Rand) {
// v = 10
// })
// return v
// }(nil),
// nftsimops.SimulateMsgMintNFT(app.NFTKeeper),
// },
// {
// func(_ *rand.Rand) int {
// var v int
// ap.GetOrGenerate(app.cdc, OpWeightMsgBurnNFT, &v, nil,
// func(_ *rand.Rand) {
// v = 5
// })
// return v
// }(nil),
// nftsimops.SimulateMsgBurnNFT(app.NFTKeeper),
// },
}
}
// fauxMerkleModeOpt returns a BaseApp option to use a dbStoreAdapter instead of
// an IAVLStore for faster simulation speed.
func fauxMerkleModeOpt(bapp *baseapp.BaseApp) {
bapp.SetFauxMerkleMode()
}
// interBlockCacheOpt returns a BaseApp option function that sets the persistent
// inter-block write-through cache.
func interBlockCacheOpt() func(*baseapp.BaseApp) {
return baseapp.SetInterBlockCache(store.NewCommitKVStoreCacheManager())
}
// Profile with:
// /usr/local/go/bin/go test -benchmem -run=^$ github.com/cosmos/cosmos-sdk/simapp -bench ^BenchmarkFullAppSimulation$ -Commit=true -cpuprofile cpu.out
func BenchmarkFullAppSimulation(b *testing.B) {
logger := log.NewNopLogger()
config := NewConfigFromFlags()
var db dbm.DB
dir, _ := ioutil.TempDir("", "goleveldb-app-sim")
db, _ = sdk.NewLevelDB("Simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, interBlockCacheOpt())
// Run randomized simulation
// TODO: parameterize numbers, save for a later PR
_, simParams, simErr := simulation.SimulateFromSeed(
b, os.Stdout, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
// export state and params before the simulation error is checked
if config.ExportStatePath != "" {
if err := ExportStateToJSON(app, config.ExportStatePath); err != nil {
fmt.Println(err)
b.Fail()
}
}
if config.ExportParamsPath != "" {
if err := ExportParamsToJSON(simParams, config.ExportParamsPath); err != nil {
fmt.Println(err)
b.Fail()
}
}
if simErr != nil {
fmt.Println(simErr)
b.FailNow()
}
if config.Commit {
fmt.Println("\nGoLevelDB Stats")
fmt.Println(db.Stats()["leveldb.stats"])
fmt.Println("GoLevelDB cached block size", db.Stats()["leveldb.cachedblock"])
}
}
func TestFullAppSimulation(t *testing.T) {
if !FlagEnabledValue {
t.Skip("skipping application simulation")
}
var logger log.Logger
config := NewConfigFromFlags()
if FlagVerboseValue {
logger = log.TestingLogger()
} else {
logger = log.NewNopLogger()
}
var db dbm.DB
dir, _ := ioutil.TempDir("", "goleveldb-app-sim")
db, _ = sdk.NewLevelDB("Simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "SimApp", app.Name())
// Run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
// export state and params before the simulation error is checked
if config.ExportStatePath != "" {
err := ExportStateToJSON(app, config.ExportStatePath)
require.NoError(t, err)
}
if config.ExportParamsPath != "" {
err := ExportParamsToJSON(simParams, config.ExportParamsPath)
require.NoError(t, err)
}
require.NoError(t, simErr)
if config.Commit {
// for memdb:
// fmt.Println("Database Size", db.Stats()["database.size"])
fmt.Println("\nGoLevelDB Stats")
fmt.Println(db.Stats()["leveldb.stats"])
fmt.Println("GoLevelDB cached block size", db.Stats()["leveldb.cachedblock"])
}
}
func TestAppImportExport(t *testing.T) {
if !FlagEnabledValue {
t.Skip("skipping application import/export simulation")
}
var logger log.Logger
config := NewConfigFromFlags()
if FlagVerboseValue {
logger = log.TestingLogger()
} else {
logger = log.NewNopLogger()
}
var db dbm.DB
dir, _ := ioutil.TempDir("", "goleveldb-app-sim")
db, _ = sdk.NewLevelDB("Simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "SimApp", app.Name())
// Run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
// export state and simParams before the simulation error is checked
if config.ExportStatePath != "" {
err := ExportStateToJSON(app, config.ExportStatePath)
require.NoError(t, err)
}
if config.ExportParamsPath != "" {
err := ExportParamsToJSON(simParams, config.ExportParamsPath)
require.NoError(t, err)
}
require.NoError(t, simErr)
if config.Commit {
// for memdb:
// fmt.Println("Database Size", db.Stats()["database.size"])
fmt.Println("\nGoLevelDB Stats")
fmt.Println(db.Stats()["leveldb.stats"])
fmt.Println("GoLevelDB cached block size", db.Stats()["leveldb.cachedblock"])
}
fmt.Printf("exporting genesis...\n")
appState, _, err := app.ExportAppStateAndValidators(false, []string{})
require.NoError(t, err)
fmt.Printf("importing genesis...\n")
newDir, _ := ioutil.TempDir("", "goleveldb-app-sim-2")
newDB, _ := sdk.NewLevelDB("Simulation-2", dir)
defer func() {
newDB.Close()
_ = os.RemoveAll(newDir)
}()
newApp := NewSimApp(log.NewNopLogger(), newDB, nil, true, FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "SimApp", newApp.Name())
var genesisState GenesisState
err = app.cdc.UnmarshalJSON(appState, &genesisState)
require.NoError(t, err)
ctxB := newApp.NewContext(true, abci.Header{Height: app.LastBlockHeight()})
newApp.mm.InitGenesis(ctxB, genesisState)
fmt.Printf("comparing stores...\n")
ctxA := app.NewContext(true, abci.Header{Height: app.LastBlockHeight()})
type StoreKeysPrefixes struct {
A sdk.StoreKey
B sdk.StoreKey
Prefixes [][]byte
}
storeKeysPrefixes := []StoreKeysPrefixes{
{app.keys[baseapp.MainStoreKey], newApp.keys[baseapp.MainStoreKey], [][]byte{}},
{app.keys[auth.StoreKey], newApp.keys[auth.StoreKey], [][]byte{}},
{app.keys[staking.StoreKey], newApp.keys[staking.StoreKey],
[][]byte{
staking.UnbondingQueueKey, staking.RedelegationQueueKey, staking.ValidatorQueueKey,
}}, // ordering may change but it doesn't matter
{app.keys[slashing.StoreKey], newApp.keys[slashing.StoreKey], [][]byte{}},
{app.keys[mint.StoreKey], newApp.keys[mint.StoreKey], [][]byte{}},
{app.keys[distr.StoreKey], newApp.keys[distr.StoreKey], [][]byte{}},
{app.keys[supply.StoreKey], newApp.keys[supply.StoreKey], [][]byte{}},
{app.keys[params.StoreKey], newApp.keys[params.StoreKey], [][]byte{}},
{app.keys[gov.StoreKey], newApp.keys[gov.StoreKey], [][]byte{}},
}
for _, storeKeysPrefix := range storeKeysPrefixes {
storeKeyA := storeKeysPrefix.A
storeKeyB := storeKeysPrefix.B
prefixes := storeKeysPrefix.Prefixes
storeA := ctxA.KVStore(storeKeyA)
storeB := ctxB.KVStore(storeKeyB)
failedKVAs, failedKVBs := sdk.DiffKVStores(storeA, storeB, prefixes)
require.Equal(t, len(failedKVAs), len(failedKVBs), "unequal sets of key-values to compare")
fmt.Printf("compared %d key/value pairs between %s and %s\n", len(failedKVAs), storeKeyA, storeKeyB)
require.Len(t, failedKVAs, 0, GetSimulationLog(storeKeyA.Name(), app.sm.StoreDecoders, app.cdc, failedKVAs, failedKVBs))
}
}
func TestAppSimulationAfterImport(t *testing.T) {
if !FlagEnabledValue {
t.Skip("skipping application simulation after import")
}
var logger log.Logger
config := NewConfigFromFlags()
if FlagVerboseValue {
logger = log.TestingLogger()
} else {
logger = log.NewNopLogger()
}
dir, _ := ioutil.TempDir("", "goleveldb-app-sim")
db, _ := sdk.NewLevelDB("Simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "SimApp", app.Name())
// Run randomized simulation
stopEarly, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
// export state and params before the simulation error is checked
if config.ExportStatePath != "" {
err := ExportStateToJSON(app, config.ExportStatePath)
require.NoError(t, err)
}
if config.ExportParamsPath != "" {
err := ExportParamsToJSON(simParams, config.ExportParamsPath)
require.NoError(t, err)
}
require.NoError(t, simErr)
if config.Commit {
// for memdb:
// fmt.Println("Database Size", db.Stats()["database.size"])
fmt.Println("\nGoLevelDB Stats")
fmt.Println(db.Stats()["leveldb.stats"])
fmt.Println("GoLevelDB cached block size", db.Stats()["leveldb.cachedblock"])
}
if stopEarly {
// we can't export or import a zero-validator genesis
fmt.Printf("we can't export or import a zero-validator genesis, exiting test...\n")
return
}
fmt.Printf("exporting genesis...\n")
appState, _, err := app.ExportAppStateAndValidators(true, []string{})
require.NoError(t, err)
fmt.Printf("importing genesis...\n")
newDir, _ := ioutil.TempDir("", "goleveldb-app-sim-2")
newDB, _ := sdk.NewLevelDB("Simulation-2", dir)
defer func() {
newDB.Close()
_ = os.RemoveAll(newDir)
}()
newApp := NewSimApp(log.NewNopLogger(), newDB, nil, true, FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "SimApp", newApp.Name())
newApp.InitChain(abci.RequestInitChain{
AppStateBytes: appState,
})
// Run randomized simulation on imported app
_, _, err = simulation.SimulateFromSeed(
t, os.Stdout, newApp.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(newApp, config), newApp.ModuleAccountAddrs(), config,
)
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 !FlagEnabledValue {
t.Skip("skipping application simulation")
}
config := NewConfigFromFlags()
config.InitialBlockHeight = 1
config.ExportParamsPath = ""
config.OnOperation = false
config.AllInvariants = false
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++ {
logger := log.NewNopLogger()
db := dbm.NewMemDB()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, interBlockCacheOpt())
fmt.Printf(
"running non-determinism simulation; seed %d: %d/%d, attempt: %d/%d\n",
config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
)
_, _, err := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
require.NoError(t, err)
appHash := app.LastCommitID().Hash
appHashList[j] = appHash
if j != 0 {
require.Equal(
t, appHashList[0], appHashList[j],
"non-determinism in seed %d: %d/%d, attempt: %d/%d\n", config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
)
}
}
}
}
func BenchmarkInvariants(b *testing.B) {
logger := log.NewNopLogger()
config := NewConfigFromFlags()
config.AllInvariants = false
dir, _ := ioutil.TempDir("", "goleveldb-app-invariant-bench")
db, _ := sdk.NewLevelDB("simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewSimApp(logger, db, nil, true, FlagPeriodValue, interBlockCacheOpt())
// 2. Run parameterized simulation (w/o invariants)
_, simParams, simErr := simulation.SimulateFromSeed(
b, ioutil.Discard, app.BaseApp, AppStateFn(app.Codec(), app.sm),
testAndRunTxs(app, config), app.ModuleAccountAddrs(), config,
)
// export state and params before the simulation error is checked
if config.ExportStatePath != "" {
if err := ExportStateToJSON(app, config.ExportStatePath); err != nil {
fmt.Println(err)
b.Fail()
}
}
if config.ExportParamsPath != "" {
if err := ExportParamsToJSON(simParams, config.ExportParamsPath); err != nil {
fmt.Println(err)
b.Fail()
}
}
if simErr != nil {
fmt.Println(simErr)
b.FailNow()
}
ctx := app.NewContext(true, abci.Header{Height: app.LastBlockHeight() + 1})
// 3. Benchmark each invariant separately
//
// NOTE: We use the crisis keeper as it has all the invariants registered with
// their respective metadata which makes it useful for testing/benchmarking.
for _, cr := range app.CrisisKeeper.Routes() {
b.Run(fmt.Sprintf("%s/%s", cr.ModuleName, cr.Route), func(b *testing.B) {
if res, stop := cr.Invar(ctx); stop {
fmt.Printf("broken invariant at block %d of %d\n%s", ctx.BlockHeight()-1, config.NumBlocks, res)
b.FailNow()
}
})
}
}