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How to use executeMessage method of runner Package

Best Gauge code snippet using runner.executeMessage

grpcRunner.go

Source:grpcRunner.go

...159	} else {160		resChan <- res161	}162}163func (r *GrpcRunner) executeMessage(message *gm.Message, timeout time.Duration) (*gm.Message, error) {164	resChan := make(chan *gm.Message)165	errChan := make(chan error)166	go r.invokeRPC(message, resChan, errChan)167	timer := setupTimer(timeout, errChan, message.GetMessageType().String())168	defer stopTimer(timer)169	select {170	case response := <-resChan:171		return response, nil172	case err := <-errChan:173		return nil, err174	}175}176// ExecuteMessageWithTimeout process request and give back the response177func (r *GrpcRunner) ExecuteMessageWithTimeout(message *gm.Message) (*gm.Message, error) {178	return r.executeMessage(message, r.Timeout)179}180// ExecuteAndGetStatus executes a given message and response without timeout.181func (r *GrpcRunner) ExecuteAndGetStatus(m *gm.Message) *gm.ProtoExecutionResult {182	if r.Info().Killed {183		return &gauge_messages.ProtoExecutionResult{Failed: true, ErrorMessage: "Runner is not Alive"}184	}185	res, err := r.executeMessage(m, 0)186	if err != nil {187		e, ok := status.FromError(err)188		if ok {189			var stackTrace = ""190			for _, detail := range e.Details() {191				if t, ok := detail.(*errdetails.DebugInfo); ok {192					for _, entry := range t.GetStackEntries() {193						stackTrace = fmt.Sprintf("%s%s\n", stackTrace, entry)194					}195				}196			}197			var data = strings.Split(e.Message(), "||")198			var message = data[0]199			if len(data) > 1 && stackTrace == "" {200				stackTrace = data[1]201			}202			if e.Code() == codes.Unavailable {203				r.Info().Killed = true204				return &gauge_messages.ProtoExecutionResult{Failed: true, ErrorMessage: message, StackTrace: stackTrace}205			}206			return &gauge_messages.ProtoExecutionResult{Failed: true, ErrorMessage: message, StackTrace: stackTrace}207		}208		return &gauge_messages.ProtoExecutionResult{Failed: true, ErrorMessage: err.Error()}209	}210	return res.ExecutionStatusResponse.ExecutionResult211}212// Alive check if the runner process is still alive213func (r *GrpcRunner) Alive() bool {214	ps := r.cmd.ProcessState215	return ps == nil || !ps.Exited()216}217// Kill closes the grpc connection and kills the process218func (r *GrpcRunner) Kill() error {219	if r.IsExecuting {220		return nil221	}222	m := &gm.Message{223		MessageType:        gm.Message_KillProcessRequest,224		KillProcessRequest: &gm.KillProcessRequest{},225	}226	m, err := r.executeMessage(m, r.Timeout)227	if m == nil || err != nil {228		return err229	}230	if r.conn == nil && r.cmd == nil {231		return nil232	}233	defer r.conn.Close()234	if r.Alive() {235		exited := make(chan bool, 1)236		go func() {237			for {238				if r.Alive() {239					time.Sleep(100 * time.Millisecond)240				} else {...

runner.go

Source:runner.go

1package conformance2import (3	"bytes"4	"compress/gzip"5	"context"6	"encoding/base64"7	"fmt"8	"io/ioutil"9	"math"10	"os"11	"os/exec"12	"strconv"13	"github.com/fatih/color"14	"github.com/filecoin-project/go-state-types/abi"15	"github.com/filecoin-project/go-state-types/exitcode"16	"github.com/filecoin-project/go-state-types/network"17	"github.com/hashicorp/go-multierror"18	blocks "github.com/ipfs/go-block-format"19	"github.com/ipfs/go-blockservice"20	"github.com/ipfs/go-cid"21	ds "github.com/ipfs/go-datastore"22	offline "github.com/ipfs/go-ipfs-exchange-offline"23	format "github.com/ipfs/go-ipld-format"24	"github.com/ipfs/go-merkledag"25	"github.com/ipld/go-car"26	"github.com/filecoin-project/test-vectors/schema"27	"github.com/filecoin-project/lotus/blockstore"28	"github.com/filecoin-project/lotus/chain/consensus/filcns"29	"github.com/filecoin-project/lotus/chain/types"30	"github.com/filecoin-project/lotus/chain/vm"31)32// FallbackBlockstoreGetter is a fallback blockstore to use for resolving CIDs33// unknown to the test vector. This is rarely used, usually only needed34// when transplanting vectors across versions. This is an interface tighter35// than ChainModuleAPI. It can be backed by a FullAPI client.36var FallbackBlockstoreGetter interface {37	ChainReadObj(context.Context, cid.Cid) ([]byte, error)38}39var TipsetVectorOpts struct {40	// PipelineBaseFee pipelines the basefee in multi-tipset vectors from one41	// tipset to another. Basefees in the vector are ignored, except for that of42	// the first tipset. UNUSED.43	PipelineBaseFee bool44	// OnTipsetApplied contains callback functions called after a tipset has been45	// applied.46	OnTipsetApplied []func(bs blockstore.Blockstore, params *ExecuteTipsetParams, res *ExecuteTipsetResult)47}48type GasPricingRestoreFn func()49// adjustGasPricing adjusts the global gas price mapping to make sure that the50// gas pricelist for vector's network version is used at the vector's epoch.51// Because it manipulates a global, it returns a function that reverts the52// change. The caller MUST invoke this function or the test vector runner will53// become invalid.54func adjustGasPricing(vectorEpoch abi.ChainEpoch, vectorNv network.Version) GasPricingRestoreFn {55	// Stash the current pricing mapping.56	// Ok to take a reference instead of a copy, because we override the map57	// with a new one below.58	var old = vm.Prices59	// Resolve the epoch at which the vector network version kicks in.60	var epoch abi.ChainEpoch = math.MaxInt6461	if vectorNv == network.Version0 {62		// genesis is not an upgrade.63		epoch = 064	} else {65		for _, u := range filcns.DefaultUpgradeSchedule() {66			if u.Network == vectorNv {67				epoch = u.Height68				break69			}70		}71	}72	if epoch == math.MaxInt64 {73		panic(fmt.Sprintf("could not resolve network version %d to height", vectorNv))74	}75	// Find the right pricelist for this network version.76	pricelist := vm.PricelistByEpoch(epoch)77	// Override the pricing mapping by setting the relevant pricelist for the78	// network version at the epoch where the vector runs.79	vm.Prices = map[abi.ChainEpoch]vm.Pricelist{80		vectorEpoch: pricelist,81	}82	// Return a function to restore the original mapping.83	return func() {84		vm.Prices = old85	}86}87// ExecuteMessageVector executes a message-class test vector.88func ExecuteMessageVector(r Reporter, vector *schema.TestVector, variant *schema.Variant) (diffs []string, err error) {89	var (90		ctx       = context.Background()91		baseEpoch = abi.ChainEpoch(variant.Epoch)92		nv        = network.Version(variant.NetworkVersion)93		root      = vector.Pre.StateTree.RootCID94	)95	// Load the CAR into a new temporary Blockstore.96	bs, err := LoadBlockstore(vector.CAR)97	if err != nil {98		r.Fatalf("failed to load the vector CAR: %w", err)99	}100	// Create a new Driver.101	driver := NewDriver(ctx, vector.Selector, DriverOpts{DisableVMFlush: true})102	// Monkey patch the gas pricing.103	revertFn := adjustGasPricing(baseEpoch, nv)104	defer revertFn()105	// Apply every message.106	for i, m := range vector.ApplyMessages {107		msg, err := types.DecodeMessage(m.Bytes)108		if err != nil {109			r.Fatalf("failed to deserialize message: %s", err)110		}111		// add the epoch offset if one is set.112		if m.EpochOffset != nil {113			baseEpoch += abi.ChainEpoch(*m.EpochOffset)114		}115		// Execute the message.116		var ret *vm.ApplyRet117		ret, root, err = driver.ExecuteMessage(bs, ExecuteMessageParams{118			Preroot:        root,119			Epoch:          baseEpoch,120			Message:        msg,121			BaseFee:        BaseFeeOrDefault(vector.Pre.BaseFee),122			CircSupply:     CircSupplyOrDefault(vector.Pre.CircSupply),123			Rand:           NewReplayingRand(r, vector.Randomness),124			NetworkVersion: nv,125		})126		if err != nil {127			r.Fatalf("fatal failure when executing message: %s", err)128		}129		// Assert that the receipt matches what the test vector expects.130		AssertMsgResult(r, vector.Post.Receipts[i], ret, strconv.Itoa(i))131	}132	// Once all messages are applied, assert that the final state root matches133	// the expected postcondition root.134	if expected, actual := vector.Post.StateTree.RootCID, root; expected != actual {135		ierr := fmt.Errorf("wrong post root cid; expected %v, but got %v", expected, actual)136		r.Errorf(ierr.Error())137		err = multierror.Append(err, ierr)138		diffs = dumpThreeWayStateDiff(r, vector, bs, root)139	}140	return diffs, err141}142// ExecuteTipsetVector executes a tipset-class test vector.143func ExecuteTipsetVector(r Reporter, vector *schema.TestVector, variant *schema.Variant) (diffs []string, err error) {144	var (145		ctx       = context.Background()146		baseEpoch = abi.ChainEpoch(variant.Epoch)147		root      = vector.Pre.StateTree.RootCID148		tmpds     = ds.NewMapDatastore()149	)150	// Load the vector CAR into a new temporary Blockstore.151	bs, err := LoadBlockstore(vector.CAR)152	if err != nil {153		r.Fatalf("failed to load the vector CAR: %w", err)154		return nil, err155	}156	// Create a new Driver.157	driver := NewDriver(ctx, vector.Selector, DriverOpts{})158	// Apply every tipset.159	var receiptsIdx int160	var prevEpoch = baseEpoch161	for i, ts := range vector.ApplyTipsets {162		ts := ts // capture163		execEpoch := baseEpoch + abi.ChainEpoch(ts.EpochOffset)164		params := ExecuteTipsetParams{165			Preroot:     root,166			ParentEpoch: prevEpoch,167			Tipset:      &ts,168			ExecEpoch:   execEpoch,169			Rand:        NewReplayingRand(r, vector.Randomness),170		}171		ret, err := driver.ExecuteTipset(bs, tmpds, params)172		if err != nil {173			r.Fatalf("failed to apply tipset %d: %s", i, err)174			return nil, err175		}176		// invoke callbacks.177		for _, cb := range TipsetVectorOpts.OnTipsetApplied {178			cb(bs, &params, ret)179		}180		for j, v := range ret.AppliedResults {181			AssertMsgResult(r, vector.Post.Receipts[receiptsIdx], v, fmt.Sprintf("%d of tipset %d", j, i))182			receiptsIdx++183		}184		// Compare the receipts root.185		if expected, actual := vector.Post.ReceiptsRoots[i], ret.ReceiptsRoot; expected != actual {186			ierr := fmt.Errorf("post receipts root doesn't match; expected: %s, was: %s", expected, actual)187			r.Errorf(ierr.Error())188			err = multierror.Append(err, ierr)189		}190		prevEpoch = execEpoch191		root = ret.PostStateRoot192	}193	// Once all messages are applied, assert that the final state root matches194	// the expected postcondition root.195	if expected, actual := vector.Post.StateTree.RootCID, root; expected != actual {196		ierr := fmt.Errorf("wrong post root cid; expected %v, but got %v", expected, actual)197		r.Errorf(ierr.Error())198		err = multierror.Append(err, ierr)199		diffs = dumpThreeWayStateDiff(r, vector, bs, root)200	}201	return diffs, err202}203// AssertMsgResult compares a message result. It takes the expected receipt204// encoded in the vector, the actual receipt returned by Lotus, and a message205// label to log in the assertion failure message to facilitate debugging.206func AssertMsgResult(r Reporter, expected *schema.Receipt, actual *vm.ApplyRet, label string) {207	r.Helper()208	applyret := actual209	if expected, actual := exitcode.ExitCode(expected.ExitCode), actual.ExitCode; expected != actual {210		r.Errorf("exit code of msg %s did not match; expected: %s, got: %s", label, expected, actual)211		r.Errorf("\t\\==> actor error: %s", applyret.ActorErr)212	}213	if expected, actual := expected.GasUsed, actual.GasUsed; expected != actual {214		r.Errorf("gas used of msg %s did not match; expected: %d, got: %d", label, expected, actual)215	}216	if expected, actual := []byte(expected.ReturnValue), actual.Return; !bytes.Equal(expected, actual) {217		r.Errorf("return value of msg %s did not match; expected: %s, got: %s", label, base64.StdEncoding.EncodeToString(expected), base64.StdEncoding.EncodeToString(actual))218	}219}220func dumpThreeWayStateDiff(r Reporter, vector *schema.TestVector, bs blockstore.Blockstore, actual cid.Cid) []string {221	// check if statediff exists; if not, skip.222	if err := exec.Command("statediff", "--help").Run(); err != nil {223		r.Log("could not dump 3-way state tree diff upon test failure: statediff command not found")224		r.Log("install statediff with:")225		r.Log("$ git clone https://github.com/filecoin-project/statediff.git")226		r.Log("$ cd statediff")227		r.Log("$ go generate ./...")228		r.Log("$ go install ./cmd/statediff")229		return nil230	}231	tmpCar, err := writeStateToTempCAR(bs,232		vector.Pre.StateTree.RootCID,233		vector.Post.StateTree.RootCID,234		actual,235	)236	if err != nil {237		r.Fatalf("failed to write temporary state CAR: %s", err)238		return nil239	}240	defer os.RemoveAll(tmpCar) //nolint:errcheck241	color.NoColor = false // enable colouring.242	var (243		a  = color.New(color.FgMagenta, color.Bold).Sprint("(A) expected final state")244		b  = color.New(color.FgYellow, color.Bold).Sprint("(B) actual final state")245		c  = color.New(color.FgCyan, color.Bold).Sprint("(C) initial state")246		d1 = color.New(color.FgGreen, color.Bold).Sprint("[Î1]")247		d2 = color.New(color.FgGreen, color.Bold).Sprint("[Î2]")248		d3 = color.New(color.FgGreen, color.Bold).Sprint("[Î3]")249	)250	diff := func(left, right cid.Cid) string {251		cmd := exec.Command("statediff", "car", "--file", tmpCar, left.String(), right.String())252		b, err := cmd.CombinedOutput()253		if err != nil {254			r.Fatalf("statediff failed: %s", err)255		}256		return string(b)257	}258	bold := color.New(color.Bold).SprintfFunc()259	r.Log(bold("-----BEGIN STATEDIFF-----"))260	// run state diffs.261	r.Log(bold("=== dumping 3-way diffs between %s, %s, %s ===", a, b, c))262	r.Log(bold("--- %s left: %s; right: %s ---", d1, a, b))263	diffA := diff(vector.Post.StateTree.RootCID, actual)264	r.Log(bold("----------BEGIN STATEDIFF A----------"))265	r.Log(diffA)266	r.Log(bold("----------END STATEDIFF A----------"))267	r.Log(bold("--- %s left: %s; right: %s ---", d2, c, b))268	diffB := diff(vector.Pre.StateTree.RootCID, actual)269	r.Log(bold("----------BEGIN STATEDIFF B----------"))270	r.Log(diffB)271	r.Log(bold("----------END STATEDIFF B----------"))272	r.Log(bold("--- %s left: %s; right: %s ---", d3, c, a))273	diffC := diff(vector.Pre.StateTree.RootCID, vector.Post.StateTree.RootCID)274	r.Log(bold("----------BEGIN STATEDIFF C----------"))275	r.Log(diffC)276	r.Log(bold("----------END STATEDIFF C----------"))277	r.Log(bold("-----END STATEDIFF-----"))278	return []string{diffA, diffB, diffC}279}280// writeStateToTempCAR writes the provided roots to a temporary CAR that'll be281// cleaned up via t.Cleanup(). It returns the full path of the temp file.282func writeStateToTempCAR(bs blockstore.Blockstore, roots ...cid.Cid) (string, error) {283	tmp, err := ioutil.TempFile("", "lotus-tests-*.car")284	if err != nil {285		return "", fmt.Errorf("failed to create temp file to dump CAR for diffing: %w", err)286	}287	carWalkFn := func(nd format.Node) (out []*format.Link, err error) {288		for _, link := range nd.Links() {289			if link.Cid.Prefix().Codec == cid.FilCommitmentSealed || link.Cid.Prefix().Codec == cid.FilCommitmentUnsealed {290				continue291			}292			// ignore things we don't have, the state tree is incomplete.293			if has, err := bs.Has(context.TODO(), link.Cid); err != nil {294				return nil, err295			} else if has {296				out = append(out, link)297			}298		}299		return out, nil300	}301	var (302		offl    = offline.Exchange(bs)303		blkserv = blockservice.New(bs, offl)304		dserv   = merkledag.NewDAGService(blkserv)305	)306	err = car.WriteCarWithWalker(context.Background(), dserv, roots, tmp, carWalkFn)307	if err != nil {308		return "", fmt.Errorf("failed to dump CAR for diffing: %w", err)309	}310	_ = tmp.Close()311	return tmp.Name(), nil312}313func LoadBlockstore(vectorCAR schema.Base64EncodedBytes) (blockstore.Blockstore, error) {314	bs := blockstore.Blockstore(blockstore.NewMemory())315	// Read the base64-encoded CAR from the vector, and inflate the gzip.316	buf := bytes.NewReader(vectorCAR)317	r, err := gzip.NewReader(buf)318	if err != nil {319		return nil, fmt.Errorf("failed to inflate gzipped CAR: %s", err)320	}321	defer r.Close() // nolint322	// Load the CAR embedded in the test vector into the Blockstore.323	_, err = car.LoadCar(context.TODO(), bs, r)324	if err != nil {325		return nil, fmt.Errorf("failed to load state tree car from test vector: %s", err)326	}327	if FallbackBlockstoreGetter != nil {328		fbs := &blockstore.FallbackStore{Blockstore: bs}329		fbs.SetFallback(func(ctx context.Context, c cid.Cid) (blocks.Block, error) {330			b, err := FallbackBlockstoreGetter.ChainReadObj(ctx, c)331			if err != nil {332				return nil, err333			}334			return blocks.NewBlockWithCid(b, c)335		})336		bs = fbs337	}338	return bs, nil339}...

worker.go

Source:worker.go

1package task2import (3	"context"4	"fmt"5	"time"6	"github.com/palantir/stacktrace"7	"github.com/rs/xid"8	"go.uber.org/zap"9	"github.com/Raphy42/weekend/core/logger"10	"github.com/Raphy42/weekend/core/message"11	"github.com/Raphy42/weekend/core/scheduler"12	"github.com/Raphy42/weekend/core/scheduler/async"13	"github.com/Raphy42/weekend/core/supervisor"14	"github.com/Raphy42/weekend/pkg/chrono"15	"github.com/Raphy42/weekend/pkg/concurrent_set"16	"github.com/Raphy42/weekend/pkg/set"17)18type Worker struct {19	id              xid.ID20	tasks           map[string]Task21	bus             message.Bus22	running         concurrent_set.Set[xid.ID, *scheduler.Future]23	announceMailbox message.Mailbox24}25func NewWorker(bus message.Bus, tasks ...Task) *Worker {26	return &Worker{27		id: xid.New(),28		tasks: set.From(tasks, func(item Task) (string, Task) {29			return item.Name, item30		}),31		bus:     bus,32		running: concurrent_set.New[xid.ID, *scheduler.Future](),33	}34}35func (w *Worker) Announce(ctx context.Context) error {36	if w.announceMailbox == nil {37		subject, err := w.bus.Subject(ctx, workerAnnounceSubject)38		if err != nil {39			return stacktrace.Propagate(err, "unable to open worker announce subject")40		}41		w.announceMailbox = subject42	}43	subject := w.announceMailbox44	jobNames := set.CollectSlice(w.tasks, func(k string, v Task) (string, bool) {45		return v.Name, true46	})47	if err := subject.Emit(ctx, NewWorkerAnnounceMessage(w.id, jobNames...)); err != nil {48		return stacktrace.Propagate(err, "could not announce worker to controller")49	}50	return nil51}52func (w *Worker) handleExecuteMessage(53	ctx context.Context,54	payload *ExecuteMessage,55	updateMailbox message.Mailbox,56) (*scheduler.Future, error) {57	task, ok := w.tasks[payload.Name]58	if !ok {59		return nil, stacktrace.NewError("no such manifest '%s' registered in this worker", payload.Name)60	}61	runner := supervisor.New(62		async.Name("wk", "task", payload.Name, "runner"),63		supervisor.NewSpec(task.AsyncManifest, &payload.Manifest,64			supervisor.WithSupervisionStrategy(supervisor.OneForOneSupervisionStrategy),65			supervisor.WithRestartStrategy(supervisor.TransientRestartStrategy),66			supervisor.WithShutdownStrategy(supervisor.ImmediateShutdownStrategy),67		),68	)69	runnerManifest := runner.Manifest()70	future, err := scheduler.Schedule(ctx, runnerManifest, nil)71	if err != nil {72		return nil, stacktrace.Propagate(err, "could not start task")73	}74	if err := updateMailbox.Emit(ctx, NewTaskExecutingMessage(task.AsyncManifest.ID, future.ID)); err != nil {75		return future, err76	}77	return future, nil78}79func (w *Worker) PollingExecutor(ctx context.Context) (*async.Manifest, error) {80	log := logger.FromContext(ctx).With(zap.Stringer("wk.worker.id", w.id))81	log.Info("worker starting")82	for _, manifest := range w.tasks {83		log.Debug("task registered",84			zap.String("wk.task.name", manifest.Name),85			zap.Stringer("wk.task.async.id", manifest.AsyncManifest.ID),86		)87	}88	updateMailbox, err := w.bus.Subject(ctx, workerUpdateSubject)89	if err != nil {90		return nil, stacktrace.Propagate(err, "unable to create worker mailbox")91	}92	executeRoutine := async.Of(93		async.Name("wk", "worker", w.id.String(), "execute"),94		func(ctx context.Context) error {95			mailbox, err := w.bus.Subject(ctx, fmt.Sprintf(pollExecuteSubjectFmt, w.id))96			if err != nil {97				return stacktrace.Propagate(err, "unable to create worker mailbox")98			}99			msgC, cancel := mailbox.ReadC(ctx)100			defer cancel()101			for msg := range msgC {102				switch msg.Kind {103				case MTaskExecute:104					payload := msg.Payload.(*ExecuteMessage)105					future, err := w.handleExecuteMessage(ctx, payload, mailbox)106					if err != nil {107						return stacktrace.Propagate(err, "unrecoverable error")108					}109					w.running.Insert(future.ID, future)110				}111			}112			return nil113		},114	)115	pollingRoutine := async.Of(116		async.Name("wk", "worker", w.id.String(), "poll"),117		func(ctx context.Context) error {118			// todo improve this bullshit119			ticker := chrono.NewTicker(time.Second * 2)120			errC := ticker.TickErr(ctx, func() error {121				for _, future := range w.running.Values() {122					result, done, err := future.TryPoll(ctx, time.Millisecond*10)123					if done {124						log = log.With(zap.Stringer("wk.future.id", future.ID))125						if err != nil {126							log.Error("task failed", zap.Error(err))127						} else {128							log.Info("task success")129						}130						if err := updateMailbox.Emit(ctx, NewTaskExecutedMessage(future.ID, result, err)); err != nil {131							return stacktrace.Propagate(err, "could not dispatch message")132						}133					}134				}135				return nil136			})137			return <-errC138		},139	)140	super := supervisor.New(141		async.Name("wk", "worker", w.id.String(), "executor"),142		supervisor.NewSpec(pollingRoutine, nil),143		supervisor.NewSpec(executeRoutine, nil),144	)145	manifest := super.Manifest()146	return &manifest, nil147}...

executeMessage

Using AI Code Generation

1import (2func main() {3	r := runner.New(3 * time.Second)4	r.Add(createTask(), createTask(), createTask())5	if err := r.Start(); err != nil {6		switch err {7			fmt.Println("Terminating due to timeout.")8			os.Exit(1)9			fmt.Println("Terminating due to interrupt.")10			os.Exit(2)11		}12	}13	fmt.Println("Process ended.")14}15import (16var ErrTimeout = errors.New("received timeout")17var ErrInterrupt = errors.New("received interrupt")18type Runner struct {19	tasks     []func(int)20}21func New(d time.Duration) *Runner {22	return &Runner{23		complete:  make(chan error),24		timeout:   time.After(d),25		interrupt: make(chan os.Signal, 1),26	}27}28func (r *Runner) Add(tasks ...func(int)) {29	r.tasks = append(r.tasks, tasks...)30}31func (r *Runner) Start() error {32	signal.Notify(r.interrupt, os.Interrupt)33	go func() {34		r.complete <- r.execute()35	}()36	select {37	}38}39func (r *Runner) execute() error {40	for id, task := range r.tasks {41		if r.gotInterrupt() {42		}43		task(id)44	}45}46func (r *Runner) gotInterrupt() bool {47	select {48		signal.Stop(r.interrupt)49	}50}51import (52func main() {53	rand.Seed(time.Now().UnixNano())54	r := runner.New(3 * time.Second)55	r.Add(createTask(), createTask(), createTask())56	if err := r.Start(); err != nil {57		switch err {58			fmt.Println("Terminating due to timeout

executeMessage

Using AI Code Generation

1func main() {2    runner := &runner.Runner{}3    runner.ExecuteMessage()4}5func main() {6    runner := &runner.Runner{}7    runner.ExecuteMessage()8}9func main() {10    runner := &runner.Runner{}11    runner.ExecuteMessage()12}13func main() {14    runner := &runner.Runner{}15    runner.ExecuteMessage()16}17func main() {18    runner := &runner.Runner{}19    runner.ExecuteMessage()20}21func main() {22    runner := &runner.Runner{}23    runner.ExecuteMessage()24}25func main() {26    runner := &runner.Runner{}27    runner.ExecuteMessage()28}29func main() {30    runner := &runner.Runner{}31    runner.ExecuteMessage()32}33func main() {34    runner := &runner.Runner{}35    runner.ExecuteMessage()36}37func main() {38    runner := &runner.Runner{}39    runner.ExecuteMessage()40}41func main() {42    runner := &runner.Runner{}43    runner.ExecuteMessage()44}45func main() {46    runner := &runner.Runner{}47    runner.ExecuteMessage()48}49func main() {50    runner := &runner.Runner{}51    runner.ExecuteMessage()52}53func main() {54    runner := &runner.Runner{}55    runner.ExecuteMessage()56}

executeMessage

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    runner := Runner{}5    runner.executeMessage()6}7import "fmt"8func main() {9    fmt.Println("Hello, playground")10    runner := Runner{}11    runner.executeMessage()12}13import "fmt"14func main() {15    fmt.Println("Hello, playground")16    runner := Runner{}17    runner.executeMessage()18}19import "fmt"20func main() {21    fmt.Println("Hello, playground")22    runner := Runner{}23    runner.executeMessage()24}25import "fmt"26func main() {27    fmt.Println("Hello, playground")28    runner := Runner{}29    runner.executeMessage()30}31import "fmt"32func main() {33    fmt.Println("Hello, playground")34    runner := Runner{}35    runner.executeMessage()36}37import "fmt"38func main() {39    fmt.Println("Hello, playground")40    runner := Runner{}41    runner.executeMessage()42}43import "fmt"44func main() {45    fmt.Println("Hello, playground")46    runner := Runner{}47    runner.executeMessage()48}49import "fmt"50func main() {51    fmt.Println("Hello, playground")52    runner := Runner{}53    runner.executeMessage()54}55import "fmt"56func main() {57    fmt.Println("Hello, playground")58    runner := Runner{}59    runner.executeMessage()60}61import "fmt"62func main() {63    fmt.Println("Hello, playground

executeMessage

Using AI Code Generation

1func main() {2    r := runner.New(30 * time.Second)3    r.Add(createTask(), createTask(), createTask())4    if err := r.Start(); err != nil {5        switch err {6            fmt.Println("Terminating due to interrupt")7            os.Exit(2)8            fmt.Println("Terminating due to timeout")9            os.Exit(1)10        }11    }12    fmt.Println("Process ended")13}14func main() {15    r := runner.New(30 * time.Second)16    r.Add(createTask(), createTask(), createTask())17    if err := r.Start(); err != nil {18        switch err {19            fmt.Println("Terminating due to interrupt")20            os.Exit(2)21            fmt.Println("Terminating due to timeout")22            os.Exit(1)23        }24    }25    fmt.Println("Process ended")26}27func main() {28    r := runner.New(30 * time.Second)29    r.Add(createTask(), createTask(), createTask())30    if err := r.Start(); err != nil {31        switch err {32            fmt.Println("Terminating due to interrupt")33            os.Exit(2)34            fmt.Println("Terminating due to timeout")35            os.Exit(1)36        }37    }38    fmt.Println("Process ended")39}40func main() {41    r := runner.New(30 * time.Second)42    r.Add(createTask(), createTask(), createTask())43    if err := r.Start(); err != nil {44        switch err {

executeMessage

Using AI Code Generation

1import (2func main() {3	runtime.GOMAXPROCS(2)4	wg.Add(2)5	go func() {6		defer wg.Done()7		fmt.Println("In goroutine 1")8	}()9	go func() {10		defer wg.Done()11		fmt.Println("In goroutine 2")12	}()13	fmt.Println("Waiting To Finish")14	wg.Wait()15	fmt.Println("Terminating Program")16}17import (18func main() {19	runtime.GOMAXPROCS(2)20	wg.Add(2)21	go func() {22		defer wg.Done()23		for count := 0; count < 3; count++ {24			for char := 'a'; char < 'a'+26; char++ {25				fmt.Printf("%c ", char)26			}27		}28	}()29	go func() {30		defer wg.Done()31		for count := 0; count < 3; count++ {32			for char := 'A'; char < 'A'+26; char++ {33				fmt.Printf("%c ", char)34			}35		}36	}()37	fmt.Println("Waiting To Finish")38	wg.Wait()39	fmt.Println("Terminating Program")40}41import (42func main() {43	runtime.GOMAXPROCS(2)44	wg.Add(2)45	go func() {46		defer wg.Done()47		for count := 0; count < 3; count++ {48			for char := 'a'; char < 'a'+26; char++ {49				fmt.Printf("%c ", char)50			}51		}52	}()53	go func() {54		defer wg.Done()55		for count := 0; count < 3; count++ {

executeMessage

Using AI Code Generation

1import (2func main() {3	r := runner{}4	r.executeMessage()5}6import (7type runner struct{}8func (r *runner) executeMessage() {9	fmt.Println("Executing message from runner class")10}

executeMessage

Using AI Code Generation

1import (2func main() {3	fmt.Println("Welcome to the program.")4	runner.ExecuteMessage()5	fmt.Println("The program is ending.")6}7import "fmt"8func ExecuteMessage() {9	fmt.Println("Executing the message")10}11import "testing"12func TestExecuteMessage(t *testing.T) {13	ExecuteMessage()14}15import "testing"16func TestExecuteMessage(t *testing.T) {17	ExecuteMessage()18}19import (20func TestExecuteMessage(t *testing.T) {21	ExecuteMessage()22}23import (24func TestExecuteMessage(t *testing.T) {25	ExecuteMessage()26}27import (28func TestExecuteMessage(t *testing.T) {29	ExecuteMessage()30}31import (32func TestExecuteMessage(t *testing.T) {33	ExecuteMessage()34}35import (36func TestExecuteMessage(t *testing.T) {37	ExecuteMessage()38}

executeMessage

Using AI Code Generation

1import (2func main() {3	r := new(runner)4	r.executeMessage(msg)5}6import (7type runner struct {8}9func (r *runner) executeMessage(msg string) {10	t := reflect.TypeOf(r)11	m, ok := t.MethodByName(methodName)12	if ok {13		numIn := mt.NumIn()14		numOut := mt.NumOut()15		inParams := make([]reflect.Type, numIn)16		for i := 0; i < numIn; i++ {17			inParams[i] = mt.In(i)18		}19		outParams := make([]reflect.Type, numOut)20		for i := 0; i < numOut; i++ {21			outParams[i] = mt.Out(i)22		}23		in := make([]reflect.Value, numIn)24		for i := 0; i < numIn; i++ {25			in[i] = reflect.New(inParams[i]).Elem()26		}27		in[0].SetString(msg)28		out := reflect.ValueOf(r).MethodByName(methodName).Call(in)29		fmt.Println(out[0].String())30	}31}32import (33func (r *runner) executeMessage(msg string) (result string) {34}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.