0g-chain/app/sim_test.go
Ruaridh 5bdffd5c1c
Add Auction Simulations (#419)
* first pass

* fix bid amount calculation

* untested refactor of sim ops and genesis

* refactor operations and fix auction bug

* add param changes and genesis

* address minor TODO

* add first draft of invariants

* improve param generation

* complete invariants

* fix genesis tests

* log no-op better

* small fixes

* add missed comma

Co-authored-by: John Maheswaran <john@kava.io>
2020-04-13 17:01:54 +01:00

747 lines
22 KiB
Go

package app
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/simapp"
"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"
auctionsimops "github.com/kava-labs/kava/x/auction/simulation/operations"
bep3simops "github.com/kava-labs/kava/x/bep3/simulation/operations"
pricefeedsimops "github.com/kava-labs/kava/x/pricefeed/simulation/operations"
)
// Simulation parameter constants
const (
StakePerAccount = "stake_per_account"
InitiallyBondedValidators = "initially_bonded_validators"
OpWeightDeductFee = "op_weight_deduct_fee"
OpWeightMsgSend = "op_weight_msg_send"
OpWeightSingleInputMsgMultiSend = "op_weight_single_input_msg_multisend"
OpWeightMsgSetWithdrawAddress = "op_weight_msg_set_withdraw_address"
OpWeightMsgWithdrawDelegationReward = "op_weight_msg_withdraw_delegation_reward"
OpWeightMsgWithdrawValidatorCommission = "op_weight_msg_withdraw_validator_commission"
OpWeightSubmitVotingSlashingTextProposal = "op_weight_submit_voting_slashing_text_proposal"
OpWeightSubmitVotingSlashingCommunitySpendProposal = "op_weight_submit_voting_slashing_community_spend_proposal"
OpWeightSubmitVotingSlashingParamChangeProposal = "op_weight_submit_voting_slashing_param_change_proposal"
OpWeightMsgDeposit = "op_weight_msg_deposit"
OpWeightMsgCreateValidator = "op_weight_msg_create_validator"
OpWeightMsgEditValidator = "op_weight_msg_edit_validator"
OpWeightMsgDelegate = "op_weight_msg_delegate"
OpWeightMsgUndelegate = "op_weight_msg_undelegate"
OpWeightMsgBeginRedelegate = "op_weight_msg_begin_redelegate"
OpWeightMsgUnjail = "op_weight_msg_unjail"
OpWeightMsgPlaceBid = "op_weight_msg_place_bid"
OpWeightMsgPricefeed = "op_weight_msg_pricefeed"
OpWeightMsgCreateAtomicSwap = "op_weight_msg_create_atomic_Swap"
)
// TestMain runs setup and teardown code before all tests.
func TestMain(m *testing.M) {
// set prefixes
config := sdk.GetConfig()
SetBech32AddressPrefixes(config)
config.Seal()
// load the values from simulation specific flags
simapp.GetSimulatorFlags()
// run tests
exitCode := m.Run()
os.Exit(exitCode)
}
func testAndRunTxs(app *App, 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, OpWeightMsgPlaceBid, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
auctionsimops.SimulateMsgPlaceBid(app.accountKeeper, app.auctionKeeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgCreateAtomicSwap, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
bep3simops.SimulateMsgCreateAtomicSwap(app.accountKeeper, app.bep3Keeper),
},
{
func(_ *rand.Rand) int {
var v int
ap.GetOrGenerate(app.cdc, OpWeightMsgPricefeed, &v, nil,
func(_ *rand.Rand) {
v = 100
})
return v
}(nil),
pricefeedsimops.SimulateMsgUpdatePrices(app.pricefeedKeeper),
},
}
}
// 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/GaiaApp -bench ^BenchmarkFullAppSimulation$ -Commit=true -cpuprofile cpu.out
func BenchmarkFullAppSimulation(b *testing.B) {
logger := log.NewNopLogger()
config := simapp.NewConfigFromFlags()
var db dbm.DB
dir, _ := ioutil.TempDir("", "goleveldb-app-sim")
db, _ = sdk.NewLevelDB("Simulation", dir)
defer func() {
db.Close()
_ = os.RemoveAll(dir)
}()
app := NewApp(logger, db, nil, true, simapp.FlagPeriodValue, interBlockCacheOpt())
// Run randomized simulation
// TODO: parameterize numbers, save for a later PR
_, simParams, simErr := simulation.SimulateFromSeed(
b, os.Stdout, app.BaseApp, simapp.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 := simapp.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"])
}
}
// TestFullAppSimulation runs a standard simulation of the app, modified by cmd line flag values.
func TestFullAppSimulation(t *testing.T) {
if !simapp.FlagEnabledValue {
t.Skip("skipping application simulation")
}
var logger log.Logger
config := simapp.NewConfigFromFlags()
if simapp.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 := NewApp(logger, db, nil, true, simapp.FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "kava", app.Name())
// Run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, simapp.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 := simapp.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"])
}
}
// TestAppImportExport runs a simulation, exports the state, imports it, then checks the db state is same after import as it was before export.
func TestAppImportExport(t *testing.T) {
if !simapp.FlagEnabledValue {
t.Skip("skipping application import/export simulation")
}
var logger log.Logger
config := simapp.NewConfigFromFlags()
if simapp.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 := NewApp(logger, db, nil, true, simapp.FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "kava", app.Name())
// Run randomized simulation
_, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, simapp.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 := simapp.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 := NewApp(log.NewNopLogger(), newDB, nil, true, simapp.FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "kava", newApp.Name())
var genesisState simapp.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, simapp.GetSimulationLog(storeKeyA.Name(), app.sm.StoreDecoders, app.cdc, failedKVAs, failedKVBs))
}
}
// TestAppSimulationAfterImport runs a simulation, exports it, imports it and runs another simulation.
func TestAppSimulationAfterImport(t *testing.T) {
if !simapp.FlagEnabledValue {
t.Skip("skipping application simulation after import")
}
var logger log.Logger
config := simapp.NewConfigFromFlags()
if simapp.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 := NewApp(logger, db, nil, true, simapp.FlagPeriodValue, fauxMerkleModeOpt)
require.Equal(t, "kava", app.Name())
// Run randomized simulation
// Run randomized simulation
stopEarly, simParams, simErr := simulation.SimulateFromSeed(
t, os.Stdout, app.BaseApp, simapp.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 := simapp.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{})
if err != nil {
panic(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 := NewApp(log.NewNopLogger(), newDB, nil, true, 0, fauxMerkleModeOpt)
require.Equal(t, "kava", newApp.Name())
newApp.InitChain(abci.RequestInitChain{
AppStateBytes: appState,
})
// Run randomized simulation on imported app
_, _, err = simulation.SimulateFromSeed(
t, os.Stdout, newApp.BaseApp, simapp.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.
// TestAppStateDeterminism runs several sims with the same seed and checks the states are equal.
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
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 := NewApp(logger, db, nil, true, simapp.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, simapp.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 := simapp.NewConfigFromFlags()
config.AllInvariants = false
dir, _ := ioutil.TempDir("", "goleveldb-app-invariant-bench")
db, _ := sdk.NewLevelDB("simulation", dir)
defer func() {
db.Close()
os.RemoveAll(dir)
}()
app := NewApp(logger, db, nil, true, simapp.FlagPeriodValue, interBlockCacheOpt())
// 2. Run parameterized simulation (w/o invariants)
_, simParams, simErr := simulation.SimulateFromSeed(
b, ioutil.Discard, app.BaseApp, simapp.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 := simapp.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) {
for n := 0; n < b.N; n++ {
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()
}
}
})
}
}