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356 lines
8.7 KiB
356 lines
8.7 KiB
package main
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import (
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"context"
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"fmt"
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"math/rand"
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"os"
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"strconv"
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"time"
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"github.com/spf13/cobra"
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"github.com/tendermint/tendermint/libs/log"
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e2e "github.com/tendermint/tendermint/test/e2e/pkg"
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)
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const randomSeed = 2308084734268
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var logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo)
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func main() {
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NewCLI().Run()
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}
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// CLI is the Cobra-based command-line interface.
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type CLI struct {
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root *cobra.Command
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testnet *e2e.Testnet
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preserve bool
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}
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// NewCLI sets up the CLI.
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func NewCLI() *CLI {
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cli := &CLI{}
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cli.root = &cobra.Command{
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Use: "runner",
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Short: "End-to-end test runner",
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SilenceUsage: true,
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SilenceErrors: true, // we'll output them ourselves in Run()
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PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
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file, err := cmd.Flags().GetString("file")
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if err != nil {
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return err
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}
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testnet, err := e2e.LoadTestnet(file)
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if err != nil {
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return err
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}
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cli.testnet = testnet
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return nil
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},
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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if err = Cleanup(cli.testnet); err != nil {
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return err
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}
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defer func() {
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if cli.preserve {
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logger.Info("Preserving testnet contents because -preserve=true")
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} else if err != nil {
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logger.Info("Preserving testnet that encountered error",
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"err", err)
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} else if err := Cleanup(cli.testnet); err != nil {
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logger.Error("error cleaning up testnet contents", "err", err)
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}
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}()
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if err = Setup(cli.testnet); err != nil {
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return err
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}
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r := rand.New(rand.NewSource(randomSeed)) // nolint: gosec
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chLoadResult := make(chan error)
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ctx, cancel := context.WithCancel(cmd.Context())
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defer cancel()
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lctx, loadCancel := context.WithCancel(ctx)
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defer loadCancel()
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go func() {
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chLoadResult <- Load(lctx, r, cli.testnet)
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}()
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startAt := time.Now()
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if err = Start(ctx, cli.testnet); err != nil {
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return err
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}
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if err = Wait(ctx, cli.testnet, 5); err != nil { // allow some txs to go through
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return err
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}
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if cli.testnet.HasPerturbations() {
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if err = Perturb(ctx, cli.testnet); err != nil {
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return err
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}
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if err = Wait(ctx, cli.testnet, 5); err != nil { // allow some txs to go through
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return err
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}
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}
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if cli.testnet.Evidence > 0 {
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if err = InjectEvidence(ctx, r, cli.testnet, cli.testnet.Evidence); err != nil {
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return err
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}
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if err = Wait(ctx, cli.testnet, 5); err != nil { // ensure chain progress
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return err
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}
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}
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// to help make sure that we don't run into
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// situations where 0 transactions have
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// happened on quick cases, we make sure that
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// it's been at least 10s before canceling the
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// load generator.
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//
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// TODO allow the load generator to report
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// successful transactions to avoid needing
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// this sleep.
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if rest := time.Since(startAt); rest < 15*time.Second {
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time.Sleep(15*time.Second - rest)
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}
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loadCancel()
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if err = <-chLoadResult; err != nil {
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return fmt.Errorf("transaction load failed: %w", err)
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}
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if err = Wait(ctx, cli.testnet, 5); err != nil { // wait for network to settle before tests
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return err
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}
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if err := Test(cli.testnet); err != nil {
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return err
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}
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return nil
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},
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}
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cli.root.PersistentFlags().StringP("file", "f", "", "Testnet TOML manifest")
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_ = cli.root.MarkPersistentFlagRequired("file")
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cli.root.Flags().BoolVarP(&cli.preserve, "preserve", "p", false,
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"Preserves the running of the test net after tests are completed")
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cli.root.SetHelpCommand(&cobra.Command{
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Use: "no-help",
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Hidden: true,
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "setup",
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Short: "Generates the testnet directory and configuration",
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RunE: func(cmd *cobra.Command, args []string) error {
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return Setup(cli.testnet)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "start",
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Short: "Starts the Docker testnet, waiting for nodes to become available",
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RunE: func(cmd *cobra.Command, args []string) error {
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_, err := os.Stat(cli.testnet.Dir)
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if os.IsNotExist(err) {
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err = Setup(cli.testnet)
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}
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if err != nil {
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return err
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}
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return Start(cmd.Context(), cli.testnet)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "perturb",
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Short: "Perturbs the Docker testnet, e.g. by restarting or disconnecting nodes",
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RunE: func(cmd *cobra.Command, args []string) error {
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return Perturb(cmd.Context(), cli.testnet)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "wait",
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Short: "Waits for a few blocks to be produced and all nodes to catch up",
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RunE: func(cmd *cobra.Command, args []string) error {
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return Wait(cmd.Context(), cli.testnet, 5)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "stop",
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Short: "Stops the Docker testnet",
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RunE: func(cmd *cobra.Command, args []string) error {
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logger.Info("Stopping testnet")
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return execCompose(cli.testnet.Dir, "down")
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "pause",
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Short: "Pauses the Docker testnet",
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RunE: func(cmd *cobra.Command, args []string) error {
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logger.Info("Pausing testnet")
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return execCompose(cli.testnet.Dir, "pause")
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "resume",
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Short: "Resumes the Docker testnet",
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RunE: func(cmd *cobra.Command, args []string) error {
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logger.Info("Resuming testnet")
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return execCompose(cli.testnet.Dir, "unpause")
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "load",
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Short: "Generates transaction load until the command is canceled",
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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return Load(
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cmd.Context(),
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rand.New(rand.NewSource(randomSeed)), // nolint: gosec
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cli.testnet,
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)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "evidence [amount]",
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Args: cobra.MaximumNArgs(1),
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Short: "Generates and broadcasts evidence to a random node",
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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amount := 1
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if len(args) == 1 {
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amount, err = strconv.Atoi(args[0])
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if err != nil {
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return err
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}
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}
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return InjectEvidence(
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cmd.Context(),
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rand.New(rand.NewSource(randomSeed)), // nolint: gosec
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cli.testnet,
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amount,
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)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "test",
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Short: "Runs test cases against a running testnet",
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RunE: func(cmd *cobra.Command, args []string) error {
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return Test(cli.testnet)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "cleanup",
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Short: "Removes the testnet directory",
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RunE: func(cmd *cobra.Command, args []string) error {
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return Cleanup(cli.testnet)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "logs [node]",
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Short: "Shows the testnet or a specefic node's logs",
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Example: "runner logs validator03",
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Args: cobra.MaximumNArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return execComposeVerbose(cli.testnet.Dir, append([]string{"logs", "--no-color"}, args...)...)
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "tail [node]",
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Short: "Tails the testnet or a specific node's logs",
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Args: cobra.MaximumNArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) == 1 {
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return execComposeVerbose(cli.testnet.Dir, "logs", "--follow", args[0])
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}
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return execComposeVerbose(cli.testnet.Dir, "logs", "--follow")
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},
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})
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cli.root.AddCommand(&cobra.Command{
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Use: "benchmark",
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Short: "Benchmarks testnet",
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Long: `Benchmarks the following metrics:
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Mean Block Interval
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Standard Deviation
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Min Block Interval
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Max Block Interval
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over a 100 block sampling period.
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Does not run any perbutations.
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`,
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RunE: func(cmd *cobra.Command, args []string) error {
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if err := Cleanup(cli.testnet); err != nil {
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return err
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}
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defer func() {
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if err := Cleanup(cli.testnet); err != nil {
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logger.Error("error cleaning up testnet contents", "err", err)
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}
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}()
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if err := Setup(cli.testnet); err != nil {
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return err
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}
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chLoadResult := make(chan error)
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ctx, cancel := context.WithCancel(cmd.Context())
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defer cancel()
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r := rand.New(rand.NewSource(randomSeed)) // nolint: gosec
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lctx, loadCancel := context.WithCancel(ctx)
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defer loadCancel()
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go func() {
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chLoadResult <- Load(lctx, r, cli.testnet)
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}()
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if err := Start(ctx, cli.testnet); err != nil {
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return err
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}
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if err := Wait(ctx, cli.testnet, 5); err != nil { // allow some txs to go through
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return err
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}
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// we benchmark performance over the next 100 blocks
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if err := Benchmark(ctx, cli.testnet, 100); err != nil {
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return err
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}
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loadCancel()
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if err := <-chLoadResult; err != nil {
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return err
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}
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return nil
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},
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})
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return cli
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}
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// Run runs the CLI.
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func (cli *CLI) Run() {
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if err := cli.root.Execute(); err != nil {
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logger.Error(err.Error())
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os.Exit(1)
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}
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}
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