336 lines
11 KiB
Go
336 lines
11 KiB
Go
package simapp
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import (
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"encoding/json"
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"fmt"
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"math/rand"
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"os"
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"testing"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/libs/log"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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dbm "github.com/tendermint/tm-db"
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"github.com/cosmos/cosmos-sdk/baseapp"
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"github.com/cosmos/cosmos-sdk/simapp/helpers"
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"github.com/cosmos/cosmos-sdk/store"
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sdk "github.com/cosmos/cosmos-sdk/types"
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simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
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authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
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authzkeeper "github.com/cosmos/cosmos-sdk/x/authz/keeper"
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banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
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capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
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distrtypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
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evidencetypes "github.com/cosmos/cosmos-sdk/x/evidence/types"
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govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
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minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
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paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
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"github.com/cosmos/cosmos-sdk/x/simulation"
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slashingtypes "github.com/cosmos/cosmos-sdk/x/slashing/types"
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stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
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)
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// Get flags every time the simulator is run
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func init() {
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GetSimulatorFlags()
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}
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type StoreKeysPrefixes struct {
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A sdk.StoreKey
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B sdk.StoreKey
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Prefixes [][]byte
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}
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// fauxMerkleModeOpt returns a BaseApp option to use a dbStoreAdapter instead of
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// an IAVLStore for faster simulation speed.
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func fauxMerkleModeOpt(bapp *baseapp.BaseApp) {
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bapp.SetFauxMerkleMode()
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}
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// interBlockCacheOpt returns a BaseApp option function that sets the persistent
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// inter-block write-through cache.
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func interBlockCacheOpt() func(*baseapp.BaseApp) {
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return baseapp.SetInterBlockCache(store.NewCommitKVStoreCacheManager())
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}
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func TestFullAppSimulation(t *testing.T) {
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config, db, dir, logger, skip, err := SetupSimulation("leveldb-app-sim", "Simulation")
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if skip {
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t.Skip("skipping application simulation")
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}
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require.NoError(t, err, "simulation setup failed")
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defer func() {
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db.Close()
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require.NoError(t, os.RemoveAll(dir))
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}()
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app := NewSimApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, fauxMerkleModeOpt)
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require.Equal(t, "SimApp", app.Name())
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// run randomized simulation
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_, simParams, simErr := simulation.SimulateFromSeed(
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t,
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os.Stdout,
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app.BaseApp,
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AppStateFn(app.AppCodec(), app.SimulationManager()),
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simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
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SimulationOperations(app, app.AppCodec(), config),
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app.ModuleAccountAddrs(),
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config,
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app.AppCodec(),
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)
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// export state and simParams before the simulation error is checked
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err = CheckExportSimulation(app, config, simParams)
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require.NoError(t, err)
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require.NoError(t, simErr)
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if config.Commit {
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PrintStats(db)
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}
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}
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func TestAppImportExport(t *testing.T) {
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config, db, dir, logger, skip, err := SetupSimulation("leveldb-app-sim", "Simulation")
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if skip {
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t.Skip("skipping application import/export simulation")
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}
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require.NoError(t, err, "simulation setup failed")
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defer func() {
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db.Close()
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require.NoError(t, os.RemoveAll(dir))
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}()
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app := NewSimApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, fauxMerkleModeOpt)
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require.Equal(t, "SimApp", app.Name())
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// Run randomized simulation
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_, simParams, simErr := simulation.SimulateFromSeed(
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t,
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os.Stdout,
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app.BaseApp,
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AppStateFn(app.AppCodec(), app.SimulationManager()),
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simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
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SimulationOperations(app, app.AppCodec(), config),
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app.ModuleAccountAddrs(),
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config,
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app.AppCodec(),
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)
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// export state and simParams before the simulation error is checked
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err = CheckExportSimulation(app, config, simParams)
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require.NoError(t, err)
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require.NoError(t, simErr)
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if config.Commit {
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PrintStats(db)
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}
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fmt.Printf("exporting genesis...\n")
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exported, err := app.ExportAppStateAndValidators(false, []string{})
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require.NoError(t, err)
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fmt.Printf("importing genesis...\n")
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_, newDB, newDir, _, _, err := SetupSimulation("leveldb-app-sim-2", "Simulation-2")
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require.NoError(t, err, "simulation setup failed")
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defer func() {
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newDB.Close()
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require.NoError(t, os.RemoveAll(newDir))
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}()
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newApp := NewSimApp(log.NewNopLogger(), newDB, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, fauxMerkleModeOpt)
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require.Equal(t, "SimApp", newApp.Name())
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var genesisState GenesisState
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err = json.Unmarshal(exported.AppState, &genesisState)
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require.NoError(t, err)
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ctxA := app.NewContext(true, tmproto.Header{Height: app.LastBlockHeight()})
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ctxB := newApp.NewContext(true, tmproto.Header{Height: app.LastBlockHeight()})
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newApp.mm.InitGenesis(ctxB, app.AppCodec(), genesisState)
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newApp.StoreConsensusParams(ctxB, exported.ConsensusParams)
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fmt.Printf("comparing stores...\n")
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storeKeysPrefixes := []StoreKeysPrefixes{
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{app.keys[authtypes.StoreKey], newApp.keys[authtypes.StoreKey], [][]byte{}},
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{app.keys[stakingtypes.StoreKey], newApp.keys[stakingtypes.StoreKey],
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[][]byte{
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stakingtypes.UnbondingQueueKey, stakingtypes.RedelegationQueueKey, stakingtypes.ValidatorQueueKey,
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stakingtypes.HistoricalInfoKey,
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}}, // ordering may change but it doesn't matter
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{app.keys[slashingtypes.StoreKey], newApp.keys[slashingtypes.StoreKey], [][]byte{}},
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{app.keys[minttypes.StoreKey], newApp.keys[minttypes.StoreKey], [][]byte{}},
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{app.keys[distrtypes.StoreKey], newApp.keys[distrtypes.StoreKey], [][]byte{}},
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{app.keys[banktypes.StoreKey], newApp.keys[banktypes.StoreKey], [][]byte{banktypes.BalancesPrefix}},
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{app.keys[paramtypes.StoreKey], newApp.keys[paramtypes.StoreKey], [][]byte{}},
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{app.keys[govtypes.StoreKey], newApp.keys[govtypes.StoreKey], [][]byte{}},
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{app.keys[evidencetypes.StoreKey], newApp.keys[evidencetypes.StoreKey], [][]byte{}},
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{app.keys[capabilitytypes.StoreKey], newApp.keys[capabilitytypes.StoreKey], [][]byte{}},
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{app.keys[authzkeeper.StoreKey], newApp.keys[authzkeeper.StoreKey], [][]byte{}},
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}
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for _, skp := range storeKeysPrefixes {
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storeA := ctxA.KVStore(skp.A)
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storeB := ctxB.KVStore(skp.B)
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failedKVAs, failedKVBs := sdk.DiffKVStores(storeA, storeB, skp.Prefixes)
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require.Equal(t, len(failedKVAs), len(failedKVBs), "unequal sets of key-values to compare")
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fmt.Printf("compared %d different key/value pairs between %s and %s\n", len(failedKVAs), skp.A, skp.B)
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require.Equal(t, len(failedKVAs), 0, GetSimulationLog(skp.A.Name(), app.SimulationManager().StoreDecoders, failedKVAs, failedKVBs))
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}
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}
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func TestAppSimulationAfterImport(t *testing.T) {
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config, db, dir, logger, skip, err := SetupSimulation("leveldb-app-sim", "Simulation")
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if skip {
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t.Skip("skipping application simulation after import")
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}
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require.NoError(t, err, "simulation setup failed")
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defer func() {
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db.Close()
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require.NoError(t, os.RemoveAll(dir))
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}()
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app := NewSimApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, fauxMerkleModeOpt)
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require.Equal(t, "SimApp", app.Name())
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// Run randomized simulation
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stopEarly, simParams, simErr := simulation.SimulateFromSeed(
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t,
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os.Stdout,
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app.BaseApp,
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AppStateFn(app.AppCodec(), app.SimulationManager()),
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simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
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SimulationOperations(app, app.AppCodec(), config),
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app.ModuleAccountAddrs(),
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config,
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app.AppCodec(),
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)
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// export state and simParams before the simulation error is checked
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err = CheckExportSimulation(app, config, simParams)
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require.NoError(t, err)
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require.NoError(t, simErr)
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if config.Commit {
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PrintStats(db)
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}
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if stopEarly {
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fmt.Println("can't export or import a zero-validator genesis, exiting test...")
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return
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}
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fmt.Printf("exporting genesis...\n")
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exported, err := app.ExportAppStateAndValidators(true, []string{})
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require.NoError(t, err)
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fmt.Printf("importing genesis...\n")
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_, newDB, newDir, _, _, err := SetupSimulation("leveldb-app-sim-2", "Simulation-2")
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require.NoError(t, err, "simulation setup failed")
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defer func() {
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newDB.Close()
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require.NoError(t, os.RemoveAll(newDir))
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}()
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newApp := NewSimApp(log.NewNopLogger(), newDB, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, fauxMerkleModeOpt)
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require.Equal(t, "SimApp", newApp.Name())
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newApp.InitChain(abci.RequestInitChain{
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AppStateBytes: exported.AppState,
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})
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_, _, err = simulation.SimulateFromSeed(
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t,
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os.Stdout,
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newApp.BaseApp,
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AppStateFn(app.AppCodec(), app.SimulationManager()),
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simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
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SimulationOperations(newApp, newApp.AppCodec(), config),
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app.ModuleAccountAddrs(),
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config,
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app.AppCodec(),
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)
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require.NoError(t, err)
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}
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// TODO: Make another test for the fuzzer itself, which just has noOp txs
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// and doesn't depend on the application.
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func TestAppStateDeterminism(t *testing.T) {
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if !FlagEnabledValue {
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t.Skip("skipping application simulation")
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}
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config := NewConfigFromFlags()
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config.InitialBlockHeight = 1
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config.ExportParamsPath = ""
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config.OnOperation = false
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config.AllInvariants = false
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config.ChainID = helpers.SimAppChainID
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numSeeds := 3
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numTimesToRunPerSeed := 5
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appHashList := make([]json.RawMessage, numTimesToRunPerSeed)
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for i := 0; i < numSeeds; i++ {
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config.Seed = rand.Int63()
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for j := 0; j < numTimesToRunPerSeed; j++ {
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var logger log.Logger
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if FlagVerboseValue {
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logger = log.TestingLogger()
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} else {
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logger = log.NewNopLogger()
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}
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db := dbm.NewMemDB()
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app := NewSimApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, FlagPeriodValue, MakeTestEncodingConfig(), EmptyAppOptions{}, interBlockCacheOpt())
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fmt.Printf(
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"running non-determinism simulation; seed %d: %d/%d, attempt: %d/%d\n",
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config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
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)
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_, _, err := simulation.SimulateFromSeed(
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t,
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os.Stdout,
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app.BaseApp,
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AppStateFn(app.AppCodec(), app.SimulationManager()),
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simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
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SimulationOperations(app, app.AppCodec(), config),
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app.ModuleAccountAddrs(),
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config,
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app.AppCodec(),
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)
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require.NoError(t, err)
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if config.Commit {
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PrintStats(db)
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}
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appHash := app.LastCommitID().Hash
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appHashList[j] = appHash
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if j != 0 {
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require.Equal(
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t, string(appHashList[0]), string(appHashList[j]),
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"non-determinism in seed %d: %d/%d, attempt: %d/%d\n", config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
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)
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}
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}
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}
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}
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