laconicd/testutil/network/network.go

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package network
import (
"bufio"
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"net/url"
"os"
"os/signal"
"path/filepath"
"strings"
"sync"
"syscall"
"testing"
"time"
"github.com/cometbft/cometbft/node"
cmtclient "github.com/cometbft/cometbft/rpc/client"
dbm "github.com/cosmos/cosmos-db"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
"google.golang.org/grpc"
"cosmossdk.io/depinject"
"cosmossdk.io/log"
sdkmath "cosmossdk.io/math"
"cosmossdk.io/math/unsafe"
pruningtypes "cosmossdk.io/store/pruning/types"
"github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/client/grpc/cmtservice"
"github.com/cosmos/cosmos-sdk/client/tx"
"github.com/cosmos/cosmos-sdk/codec"
codectypes "github.com/cosmos/cosmos-sdk/codec/types"
"github.com/cosmos/cosmos-sdk/crypto/hd"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
"github.com/cosmos/cosmos-sdk/runtime"
"github.com/cosmos/cosmos-sdk/server"
"github.com/cosmos/cosmos-sdk/server/api"
srvconfig "github.com/cosmos/cosmos-sdk/server/config"
servertypes "github.com/cosmos/cosmos-sdk/server/types"
"github.com/cosmos/cosmos-sdk/testutil"
"github.com/cosmos/cosmos-sdk/testutil/configurator"
"github.com/cosmos/cosmos-sdk/testutil/testdata"
sdk "github.com/cosmos/cosmos-sdk/types"
moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
_ "github.com/cosmos/cosmos-sdk/x/auth" // import auth as a blank
_ "github.com/cosmos/cosmos-sdk/x/auth/tx/config" // import auth tx config as a blank
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
_ "github.com/cosmos/cosmos-sdk/x/bank" // import bank as a blank
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
_ "github.com/cosmos/cosmos-sdk/x/consensus" // import consensus as a blank
"github.com/cosmos/cosmos-sdk/x/genutil"
_ "github.com/cosmos/cosmos-sdk/x/params" // import params as a blank
_ "github.com/cosmos/cosmos-sdk/x/staking" // import staking as a blank
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
)
// package-wide network lock to only allow one test network at a time
var (
lock = new(sync.Mutex)
portPool = make(chan string, 200)
)
func init() {
closeFns := []func() error{}
for i := 0; i < 200; i++ {
_, port, closeFn, err := FreeTCPAddr()
if err != nil {
panic(err)
}
portPool <- port
closeFns = append(closeFns, closeFn)
}
for _, closeFn := range closeFns {
err := closeFn()
if err != nil {
panic(err)
}
}
}
// AppConstructor defines a function which accepts a network configuration and
// creates an ABCI Application to provide to CometBFT.
type (
AppConstructor = func(val ValidatorI) servertypes.Application
TestFixtureFactory = func() TestFixture
)
type TestFixture struct {
AppConstructor AppConstructor
GenesisState map[string]json.RawMessage
EncodingConfig moduletestutil.TestEncodingConfig
}
// Config defines the necessary configuration used to bootstrap and start an
// in-process local testing network.
type Config struct {
Codec codec.Codec
LegacyAmino *codec.LegacyAmino // TODO: Remove!
InterfaceRegistry codectypes.InterfaceRegistry
TxConfig client.TxConfig
AccountRetriever client.AccountRetriever
AppConstructor AppConstructor // the ABCI application constructor
GenesisState map[string]json.RawMessage // custom genesis state to provide
TimeoutCommit time.Duration // the consensus commitment timeout
ChainID string // the network chain-id
NumValidators int // the total number of validators to create and bond
Mnemonics []string // custom user-provided validator operator mnemonics
BondDenom string // the staking bond denomination
MinGasPrices string // the minimum gas prices each validator will accept
AccountTokens sdkmath.Int // the amount of unique validator tokens (e.g. 1000node0)
StakingTokens sdkmath.Int // the amount of tokens each validator has available to stake
BondedTokens sdkmath.Int // the amount of tokens each validator stakes
PruningStrategy string // the pruning strategy each validator will have
EnableLogging bool // enable logging to STDOUT
CleanupDir bool // remove base temporary directory during cleanup
SigningAlgo string // signing algorithm for keys
KeyringOptions []keyring.Option // keyring configuration options
RPCAddress string // RPC listen address (including port)
APIAddress string // REST API listen address (including port)
GRPCAddress string // GRPC server listen address (including port)
PrintMnemonic bool // print the mnemonic of first validator as log output for testing
}
// DefaultConfig returns a sane default configuration suitable for nearly all
// testing requirements.
func DefaultConfig(factory TestFixtureFactory) Config {
fixture := factory()
return Config{
Codec: fixture.EncodingConfig.Codec,
TxConfig: fixture.EncodingConfig.TxConfig,
LegacyAmino: fixture.EncodingConfig.Amino,
InterfaceRegistry: fixture.EncodingConfig.InterfaceRegistry,
AccountRetriever: authtypes.AccountRetriever{},
AppConstructor: fixture.AppConstructor,
GenesisState: fixture.GenesisState,
TimeoutCommit: 2 * time.Second,
ChainID: "chain-" + unsafe.Str(6),
NumValidators: 4,
BondDenom: sdk.DefaultBondDenom,
MinGasPrices: fmt.Sprintf("0.000006%s", sdk.DefaultBondDenom),
AccountTokens: sdk.TokensFromConsensusPower(1000, sdk.DefaultPowerReduction),
StakingTokens: sdk.TokensFromConsensusPower(500, sdk.DefaultPowerReduction),
BondedTokens: sdk.TokensFromConsensusPower(100, sdk.DefaultPowerReduction),
PruningStrategy: pruningtypes.PruningOptionNothing,
CleanupDir: true,
SigningAlgo: string(hd.Secp256k1Type),
KeyringOptions: []keyring.Option{},
PrintMnemonic: false,
}
}
// MinimumAppConfig defines the minimum of modules required for a call to New to succeed
func MinimumAppConfig() depinject.Config {
return configurator.NewAppConfig(
configurator.AuthModule(),
configurator.ParamsModule(),
configurator.BankModule(),
configurator.GenutilModule(),
configurator.StakingModule(),
configurator.ConsensusModule(),
configurator.TxModule(),
)
}
func DefaultConfigWithAppConfig(appConfig depinject.Config) (Config, error) {
var (
appBuilder *runtime.AppBuilder
txConfig client.TxConfig
legacyAmino *codec.LegacyAmino
cdc codec.Codec
interfaceRegistry codectypes.InterfaceRegistry
)
if err := depinject.Inject(
depinject.Configs(
appConfig,
depinject.Supply(log.NewNopLogger()),
),
&appBuilder,
&txConfig,
&cdc,
&legacyAmino,
&interfaceRegistry,
); err != nil {
return Config{}, err
}
cfg := DefaultConfig(func() TestFixture {
return TestFixture{}
})
cfg.Codec = cdc
cfg.TxConfig = txConfig
cfg.LegacyAmino = legacyAmino
cfg.InterfaceRegistry = interfaceRegistry
cfg.GenesisState = appBuilder.DefaultGenesis()
cfg.AppConstructor = func(val ValidatorI) servertypes.Application {
// we build a unique app instance for every validator here
var appBuilder *runtime.AppBuilder
if err := depinject.Inject(
depinject.Configs(
appConfig,
depinject.Supply(val.GetCtx().Logger),
),
&appBuilder); err != nil {
panic(err)
}
app := appBuilder.Build(
dbm.NewMemDB(),
nil,
baseapp.SetPruning(pruningtypes.NewPruningOptionsFromString(val.GetAppConfig().Pruning)),
baseapp.SetMinGasPrices(val.GetAppConfig().MinGasPrices),
baseapp.SetChainID(cfg.ChainID),
)
testdata.RegisterQueryServer(app.GRPCQueryRouter(), testdata.QueryImpl{})
if err := app.Load(true); err != nil {
panic(err)
}
return app
}
return cfg, nil
}
type (
// Network defines a local in-process testing network using SimApp. It can be
// configured to start any number of validators, each with its own RPC and API
// clients. Typically, this test network would be used in client and integration
// testing where user input is expected.
//
// Note, due to CometBFT constraints in regards to RPC functionality, there
// may only be one test network running at a time. Thus, any caller must be
// sure to Cleanup after testing is finished in order to allow other tests
// to create networks. In addition, only the first validator will have a valid
// RPC and API server/client.
Network struct {
Logger Logger
BaseDir string
Validators []*Validator
Config Config
}
// Validator defines an in-process CometBFT validator node. Through this object,
// a client can make RPC and API calls and interact with any client command
// or handler.
Validator struct {
AppConfig *srvconfig.Config
ClientCtx client.Context
Ctx *server.Context
Dir string
NodeID string
PubKey cryptotypes.PubKey
Moniker string
APIAddress string
RPCAddress string
P2PAddress string
Address sdk.AccAddress
ValAddress sdk.ValAddress
RPCClient cmtclient.Client
app servertypes.Application
tmNode *node.Node
api *api.Server
grpc *grpc.Server
grpcWeb *http.Server
errGroup *errgroup.Group
cancelFn context.CancelFunc
}
// ValidatorI expose a validator's context and configuration
ValidatorI interface {
GetCtx() *server.Context
GetAppConfig() *srvconfig.Config
}
// Logger is a network logger interface that exposes testnet-level Log() methods for an in-process testing network
// This is not to be confused with logging that may happen at an individual node or validator level
Logger interface {
Log(args ...interface{})
Logf(format string, args ...interface{})
}
)
var (
_ Logger = (*testing.T)(nil)
_ Logger = (*CLILogger)(nil)
_ ValidatorI = Validator{}
)
func (v Validator) GetCtx() *server.Context {
return v.Ctx
}
func (v Validator) GetAppConfig() *srvconfig.Config {
return v.AppConfig
}
// CLILogger wraps a cobra.Command and provides command logging methods.
type CLILogger struct {
cmd *cobra.Command
}
// Log logs given args.
func (s CLILogger) Log(args ...interface{}) {
s.cmd.Println(args...)
}
// Logf logs given args according to a format specifier.
func (s CLILogger) Logf(format string, args ...interface{}) {
s.cmd.Printf(format, args...)
}
// NewCLILogger creates a new CLILogger.
func NewCLILogger(cmd *cobra.Command) CLILogger {
return CLILogger{cmd}
}
// New creates a new Network for integration tests or in-process testnets run via the CLI
func New(l Logger, baseDir string, cfg Config) (*Network, error) {
// only one caller/test can create and use a network at a time
l.Log("acquiring test network lock")
lock.Lock()
network := &Network{
Logger: l,
BaseDir: baseDir,
Validators: make([]*Validator, cfg.NumValidators),
Config: cfg,
}
l.Logf("preparing test network with chain-id \"%s\"\n", cfg.ChainID)
monikers := make([]string, cfg.NumValidators)
nodeIDs := make([]string, cfg.NumValidators)
valPubKeys := make([]cryptotypes.PubKey, cfg.NumValidators)
var (
genAccounts []authtypes.GenesisAccount
genBalances []banktypes.Balance
genFiles []string
)
buf := bufio.NewReader(os.Stdin)
// generate private keys, node IDs, and initial transactions
for i := 0; i < cfg.NumValidators; i++ {
appCfg := srvconfig.DefaultConfig()
appCfg.Pruning = cfg.PruningStrategy
appCfg.MinGasPrices = cfg.MinGasPrices
appCfg.API.Enable = true
appCfg.API.Swagger = false
appCfg.Telemetry.Enabled = false
ctx := server.NewDefaultContext()
cmtCfg := ctx.Config
cmtCfg.Consensus.TimeoutCommit = cfg.TimeoutCommit
// Only allow the first validator to expose an RPC, API and gRPC
// server/client due to CometBFT in-process constraints.
apiAddr := ""
cmtCfg.RPC.ListenAddress = ""
appCfg.GRPC.Enable = false
appCfg.GRPCWeb.Enable = false
apiListenAddr := ""
if i == 0 {
if cfg.APIAddress != "" {
apiListenAddr = cfg.APIAddress
} else {
if len(portPool) == 0 {
return nil, fmt.Errorf("failed to get port for API server")
}
port := <-portPool
apiListenAddr = fmt.Sprintf("tcp://0.0.0.0:%s", port)
}
appCfg.API.Address = apiListenAddr
apiURL, err := url.Parse(apiListenAddr)
if err != nil {
return nil, err
}
apiAddr = fmt.Sprintf("http://%s:%s", apiURL.Hostname(), apiURL.Port())
if cfg.RPCAddress != "" {
cmtCfg.RPC.ListenAddress = cfg.RPCAddress
} else {
if len(portPool) == 0 {
return nil, fmt.Errorf("failed to get port for RPC server")
}
port := <-portPool
cmtCfg.RPC.ListenAddress = fmt.Sprintf("tcp://0.0.0.0:%s", port)
}
if cfg.GRPCAddress != "" {
appCfg.GRPC.Address = cfg.GRPCAddress
} else {
if len(portPool) == 0 {
return nil, fmt.Errorf("failed to get port for GRPC server")
}
port := <-portPool
appCfg.GRPC.Address = fmt.Sprintf("0.0.0.0:%s", port)
}
appCfg.GRPC.Enable = true
appCfg.GRPCWeb.Enable = true
}
logger := log.NewNopLogger()
if cfg.EnableLogging {
logger = log.NewLogger(os.Stdout) // TODO(mr): enable selection of log destination.
}
ctx.Logger = logger
nodeDirName := fmt.Sprintf("node%d", i)
nodeDir := filepath.Join(network.BaseDir, nodeDirName, "simd")
clientDir := filepath.Join(network.BaseDir, nodeDirName, "simcli")
gentxsDir := filepath.Join(network.BaseDir, "gentxs")
err := os.MkdirAll(filepath.Join(nodeDir, "config"), 0o755)
if err != nil {
return nil, err
}
err = os.MkdirAll(clientDir, 0o755)
if err != nil {
return nil, err
}
cmtCfg.SetRoot(nodeDir)
cmtCfg.Moniker = nodeDirName
monikers[i] = nodeDirName
if len(portPool) == 0 {
return nil, fmt.Errorf("failed to get port for Proxy server")
}
port := <-portPool
proxyAddr := fmt.Sprintf("tcp://0.0.0.0:%s", port)
cmtCfg.ProxyApp = proxyAddr
if len(portPool) == 0 {
return nil, fmt.Errorf("failed to get port for Proxy server")
}
port = <-portPool
p2pAddr := fmt.Sprintf("tcp://0.0.0.0:%s", port)
cmtCfg.P2P.ListenAddress = p2pAddr
cmtCfg.P2P.AddrBookStrict = false
cmtCfg.P2P.AllowDuplicateIP = true
nodeID, pubKey, err := genutil.InitializeNodeValidatorFiles(cmtCfg)
if err != nil {
return nil, err
}
nodeIDs[i] = nodeID
valPubKeys[i] = pubKey
kb, err := keyring.New(sdk.KeyringServiceName(), keyring.BackendTest, clientDir, buf, cfg.Codec, cfg.KeyringOptions...)
if err != nil {
return nil, err
}
keyringAlgos, _ := kb.SupportedAlgorithms()
algo, err := keyring.NewSigningAlgoFromString(cfg.SigningAlgo, keyringAlgos)
if err != nil {
return nil, err
}
var mnemonic string
if i < len(cfg.Mnemonics) {
mnemonic = cfg.Mnemonics[i]
}
addr, secret, err := testutil.GenerateSaveCoinKey(kb, nodeDirName, mnemonic, true, algo)
if err != nil {
return nil, err
}
// if PrintMnemonic is set to true, we print the first validator node's secret to the network's logger
// for debugging and manual testing
if cfg.PrintMnemonic && i == 0 {
printMnemonic(l, secret)
}
info := map[string]string{"secret": secret}
infoBz, err := json.Marshal(info)
if err != nil {
return nil, err
}
// save private key seed words
err = writeFile(fmt.Sprintf("%v.json", "key_seed"), clientDir, infoBz)
if err != nil {
return nil, err
}
balances := sdk.NewCoins(
sdk.NewCoin(fmt.Sprintf("%stoken", nodeDirName), cfg.AccountTokens),
sdk.NewCoin(cfg.BondDenom, cfg.StakingTokens),
)
genFiles = append(genFiles, cmtCfg.GenesisFile())
genBalances = append(genBalances, banktypes.Balance{Address: addr.String(), Coins: balances.Sort()})
genAccounts = append(genAccounts, authtypes.NewBaseAccount(addr, nil, 0, 0))
commission, err := sdkmath.LegacyNewDecFromStr("0.5")
if err != nil {
return nil, err
}
createValMsg, err := stakingtypes.NewMsgCreateValidator(
sdk.ValAddress(addr).String(),
valPubKeys[i],
sdk.NewCoin(cfg.BondDenom, cfg.BondedTokens),
stakingtypes.NewDescription(nodeDirName, "", "", "", ""),
stakingtypes.NewCommissionRates(commission, sdkmath.LegacyOneDec(), sdkmath.LegacyOneDec()),
sdkmath.OneInt(),
)
if err != nil {
return nil, err
}
p2pURL, err := url.Parse(p2pAddr)
if err != nil {
return nil, err
}
memo := fmt.Sprintf("%s@%s:%s", nodeIDs[i], p2pURL.Hostname(), p2pURL.Port())
fee := sdk.NewCoins(sdk.NewCoin(fmt.Sprintf("%stoken", nodeDirName), sdkmath.NewInt(0)))
txBuilder := cfg.TxConfig.NewTxBuilder()
err = txBuilder.SetMsgs(createValMsg)
if err != nil {
return nil, err
}
txBuilder.SetFeeAmount(fee) // Arbitrary fee
txBuilder.SetGasLimit(1000000) // Need at least 100386
txBuilder.SetMemo(memo)
txFactory := tx.Factory{}
txFactory = txFactory.
WithChainID(cfg.ChainID).
WithMemo(memo).
WithKeybase(kb).
WithTxConfig(cfg.TxConfig)
err = tx.Sign(context.Background(), txFactory, nodeDirName, txBuilder, true)
if err != nil {
return nil, err
}
txBz, err := cfg.TxConfig.TxJSONEncoder()(txBuilder.GetTx())
if err != nil {
return nil, err
}
err = writeFile(fmt.Sprintf("%v.json", nodeDirName), gentxsDir, txBz)
if err != nil {
return nil, err
}
srvconfig.WriteConfigFile(filepath.Join(nodeDir, "config", "app.toml"), appCfg)
clientCtx := client.Context{}.
WithKeyringDir(clientDir).
WithKeyring(kb).
WithHomeDir(cmtCfg.RootDir).
WithChainID(cfg.ChainID).
WithInterfaceRegistry(cfg.InterfaceRegistry).
WithCodec(cfg.Codec).
WithLegacyAmino(cfg.LegacyAmino).
WithTxConfig(cfg.TxConfig).
WithAccountRetriever(cfg.AccountRetriever).
WithNodeURI(cmtCfg.RPC.ListenAddress)
// Provide ChainID here since we can't modify it in the Comet config.
ctx.Viper.Set(flags.FlagChainID, cfg.ChainID)
network.Validators[i] = &Validator{
AppConfig: appCfg,
ClientCtx: clientCtx,
Ctx: ctx,
Dir: filepath.Join(network.BaseDir, nodeDirName),
NodeID: nodeID,
PubKey: pubKey,
Moniker: nodeDirName,
RPCAddress: cmtCfg.RPC.ListenAddress,
P2PAddress: cmtCfg.P2P.ListenAddress,
APIAddress: apiAddr,
Address: addr,
ValAddress: sdk.ValAddress(addr),
}
}
err := initGenFiles(cfg, genAccounts, genBalances, genFiles)
if err != nil {
return nil, err
}
err = collectGenFiles(cfg, network.Validators, network.BaseDir)
if err != nil {
return nil, err
}
l.Log("starting test network...")
for idx, v := range network.Validators {
if err := startInProcess(cfg, v); err != nil {
return nil, err
}
l.Log("started validator", idx)
}
// height, err := network.LatestHeight()
// if err != nil {
// return nil, err
// }
// l.Log("started test network at height:", height)
// Ensure we cleanup incase any test was abruptly halted (e.g. SIGINT) as any
// defer in a test would not be called.
trapSignal(network.Cleanup)
return network, nil
}
// trapSignal traps SIGINT and SIGTERM and calls os.Exit once a signal is received.
func trapSignal(cleanupFunc func()) {
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
go func() {
sig := <-sigs
if cleanupFunc != nil {
cleanupFunc()
}
exitCode := 128
switch sig {
case syscall.SIGINT:
exitCode += int(syscall.SIGINT)
case syscall.SIGTERM:
exitCode += int(syscall.SIGTERM)
}
os.Exit(exitCode)
}()
}
// LatestHeight returns the latest height of the network or an error if the
// query fails or no validators exist.
func (n *Network) LatestHeight() (int64, error) {
if len(n.Validators) == 0 {
return 0, errors.New("no validators available")
}
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
timeout := time.NewTimer(time.Second * 5)
defer timeout.Stop()
var latestHeight int64
val := n.Validators[0]
queryClient := cmtservice.NewServiceClient(val.ClientCtx)
for {
select {
case <-ticker.C:
done := make(chan struct{})
go func() {
res, err := queryClient.GetLatestBlock(context.Background(), &cmtservice.GetLatestBlockRequest{})
if err == nil && res != nil {
latestHeight = res.SdkBlock.Header.Height
}
done <- struct{}{}
}()
select {
case <-timeout.C:
return latestHeight, errors.New("timeout exceeded waiting for block")
case <-done:
if latestHeight != 0 {
return latestHeight, nil
}
}
default: //nolint: all
}
}
}
// WaitForHeight performs a blocking check where it waits for a block to be
// committed after a given block.
func (n *Network) WaitForHeight(h int64) (int64, error) {
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
if len(n.Validators) == 0 {
return 0, errors.New("no validators available")
}
var latestHeight int64
val := n.Validators[0]
queryClient := cmtservice.NewServiceClient(val.ClientCtx)
for {
select {
case <-ticker.C:
res, err := queryClient.GetLatestBlock(context.Background(), &cmtservice.GetLatestBlockRequest{})
if err == nil && res != nil {
latestHeight = res.GetSdkBlock().Header.Height
if latestHeight >= h {
return latestHeight, nil
}
}
default: //nolint: all
}
}
}
// RetryForBlocks will wait for the next block and execute the function provided.
// It will do this until the function returns a nil error or until the number of
// blocks has been reached.
func (n *Network) RetryForBlocks(retryFunc func() error, blocks int) error {
for i := 0; i < blocks; i++ {
_ = n.WaitForNextBlock()
err := retryFunc()
if err == nil {
return nil
}
// we've reached the last block to wait, return the error
if i == blocks-1 {
return err
}
}
return nil
}
// WaitForNextBlock waits for the next block to be committed, returning an error
// upon failure.
func (n *Network) WaitForNextBlock() error {
lastBlock, err := n.LatestHeight()
if err != nil {
return err
}
_, err = n.WaitForHeight(lastBlock + 1)
if err != nil {
return err
}
return err
}
// Cleanup removes the root testing (temporary) directory and stops both the
// CometBFT and API services. It allows other callers to create and start
// test networks. This method must be called when a test is finished, typically
// in a defer.
func (n *Network) Cleanup() {
defer func() {
lock.Unlock()
n.Logger.Log("released test network lock")
}()
n.Logger.Log("cleaning up test network...")
for _, v := range n.Validators {
// cancel the validator's context which will signal to the gRPC and API
// goroutines that they should gracefully exit.
v.cancelFn()
if err := v.errGroup.Wait(); err != nil {
n.Logger.Log("unexpected error waiting for validator gRPC and API processes to exit", "err", err)
}
if v.tmNode != nil && v.tmNode.IsRunning() {
if err := v.tmNode.Stop(); err != nil {
n.Logger.Log("failed to stop validator CometBFT node", "err", err)
}
}
if v.grpcWeb != nil {
_ = v.grpcWeb.Close()
}
if v.app != nil {
if err := v.app.Close(); err != nil {
n.Logger.Log("failed to stop validator ABCI application", "err", err)
}
}
}
time.Sleep(100 * time.Millisecond)
if n.Config.CleanupDir {
_ = os.RemoveAll(n.BaseDir)
}
n.Logger.Log("finished cleaning up test network")
}
// printMnemonic prints a provided mnemonic seed phrase on a network logger
// for debugging and manual testing
func printMnemonic(l Logger, secret string) {
lines := []string{
"THIS MNEMONIC IS FOR TESTING PURPOSES ONLY",
"DO NOT USE IN PRODUCTION",
"",
strings.Join(strings.Fields(secret)[0:8], " "),
strings.Join(strings.Fields(secret)[8:16], " "),
strings.Join(strings.Fields(secret)[16:24], " "),
}
lineLengths := make([]int, len(lines))
for i, line := range lines {
lineLengths[i] = len(line)
}
maxLineLength := 0
for _, lineLen := range lineLengths {
if lineLen > maxLineLength {
maxLineLength = lineLen
}
}
l.Log("\n")
l.Log(strings.Repeat("+", maxLineLength+8))
for _, line := range lines {
l.Logf("++ %s ++\n", centerText(line, maxLineLength))
}
l.Log(strings.Repeat("+", maxLineLength+8))
l.Log("\n")
}
// centerText centers text across a fixed width, filling either side with whitespace buffers
func centerText(text string, width int) string {
textLen := len(text)
leftBuffer := strings.Repeat(" ", (width-textLen)/2)
rightBuffer := strings.Repeat(" ", (width-textLen)/2+(width-textLen)%2)
return fmt.Sprintf("%s%s%s", leftBuffer, text, rightBuffer)
}