[Live Now] Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Join for FREE! Join TestMu Conference

How to use parallelContainersRunner method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.parallelContainersRunner

parallel.go

Source:parallel.go

...22}23func (gpe ParallelContainersError) Error() string {24	return fmt.Sprintf("%v", gpe.Errors)25}26func parallelContainersRunner(27	ctx context.Context,28	requests <-chan GenericContainerRequest,29	errors chan<- ParallelContainersRequestError,30	containers chan<- Container,31	wg *sync.WaitGroup) {32	for req := range requests {33		c, err := GenericContainer(ctx, req)34		if err != nil {35			errors <- ParallelContainersRequestError{36				Request: req,37				Error:   err,38			}39			continue40		}41		containers <- c42	}43	wg.Done()44}45// ParallelContainers creates a generic containers with parameters and run it in parallel mode46func ParallelContainers(ctx context.Context, reqs ParallelContainerRequest, opt ParallelContainersOptions) ([]Container, error) {47	if opt.WorkersCount == 0 {48		opt.WorkersCount = defaultWorkersCount49	}50	tasksChanSize := opt.WorkersCount51	if tasksChanSize > len(reqs) {52		tasksChanSize = len(reqs)53	}54	tasksChan := make(chan GenericContainerRequest, tasksChanSize)55	errsChan := make(chan ParallelContainersRequestError)56	resChan := make(chan Container)57	waitRes := make(chan struct{})58	containers := make([]Container, 0)59	errors := make([]ParallelContainersRequestError, 0)60	wg := sync.WaitGroup{}61	wg.Add(tasksChanSize)62	// run workers63	for i := 0; i < tasksChanSize; i++ {64		go parallelContainersRunner(ctx, tasksChan, errsChan, resChan, &wg)65	}66	go func() {67		for {68			select {69			case c, ok := <-resChan:70				if !ok {71					resChan = nil72				} else {73					containers = append(containers, c)74				}75			case e, ok := <-errsChan:76				if !ok {77					errsChan = nil78				} else {...

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"5432/tcp"},6		WaitingFor:   wait.ForListeningPort("5432/tcp"),7	}8	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer postgres.Terminate(ctx)14}15import (16func main() {17	ctx := context.Background()18	req := testcontainers.ContainerRequest{19		ExposedPorts: []string{"5432/tcp"},20		WaitingFor:   wait.ForListeningPort("5432/tcp"),21	}22	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{23	})24	if err != nil {25		log.Fatal(err)26	}27	defer postgres.Terminate(ctx)28}29import (30func main() {31	ctx := context.Background()32	req := testcontainers.ContainerRequest{33		ExposedPorts: []string{"5432/tcp"},34		WaitingFor:   wait.ForListeningPort("5432/tcp"),35	}36	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{37	})38	if err != nil {39		log.Fatal(err)40	}41	defer postgres.Terminate(ctx)42}43import (

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req1 := testcontainers.ContainerRequest{5		Cmd:          []string{"sh", "-c", "echo 'Hello World'; sleep 300"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   wait.ForLog("Hello World"),8	}9	req2 := testcontainers.ContainerRequest{10		Cmd:          []string{"sh", "-c", "echo 'Hello World'; sleep 300"},11		ExposedPorts: []string{"80/tcp"},12		WaitingFor:   wait.ForLog("Hello World"),13	}14	containers, err := testcontainers.ParallelContainerRequests(ctx, req1, req2)15	if err != nil {16		log.Fatal(err)17	}18	defer func() {19		for _, c := range containers {20			c.Terminate(ctx)21		}22	}()23	for _, c := range containers {24		ip, err := c.Host(ctx)25		if err != nil {26			log.Fatal(err)27		}28		mappedPort, err := c.MappedPort(ctx, "80")29		if err != nil {30			log.Fatal(err)31		}32		fmt.Println(ip, mappedPort.Int())33	}34	time.Sleep(5 * time.Second)35}

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	network, err := testcontainers.GenericNetwork(ctx, testcontainers.GenericNetworkRequest{5		NetworkRequest: testcontainers.NetworkRequest{6		},7	})8	if err != nil {9		log.Fatalf("Could not create network: %s", err)10	}11	containers, err := testcontainers.ParallelContainerRun(ctx, []testcontainers.ContainerRequest{12		{13			ExposedPorts: []string{"5432/tcp"},14			WaitingFor:   wait.ForLog("database system is ready to accept connections"),15			Networks:     []string{network.GetNetworkID()},16			NetworkAliases: map[string][]string{17				network.GetNetworkID(): {"postgres"},18			},19			Env: map[string]string{20			},21			Cmd: []string{"postgres", "-c", "fsync=off"},22		},23		{24			ExposedPorts: []string{"6379/tcp"},25			WaitingFor:   wait.ForLog("Ready to accept connections"),26			Networks:     []string{network.GetNetworkID()},27			NetworkAliases: map[string][]string{28				network.GetNetworkID(): {"redis"},29			},30		},31	})32	if err != nil {33		log.Fatalf("Could not start containers: %s", err)34	}35	defer func() {36		for _, container := range containers {37			if err := container.Terminate(ctx); err != nil {38				log.Fatalf("Could not stop container: %s", err)39			}40		}41	}()42	postgresContainer, err := containers[0].Inspect(ctx)43	if err != nil {44		log.Fatalf("Could not inspect container: %s", err)45	}46	redisContainer, err := containers[1].Inspect(ctx)47	if err != nil {

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	numCPU := runtime.NumCPU()4	ctx := context.Background()5	waitStrategy := wait.ForListeningPort("8080")6	req := testcontainers.ContainerRequest{7		ExposedPorts: []string{"8080/tcp"},8	}9	ids := make(chan string)10	errors := make(chan error)11	responses := make(chan string)12	names := make(chan string)13	ips := make(chan string)14	ports := make(chan string)15	hostPorts := make(chan string)16	hostIPs := make(chan string)17	hostBindings := make(chan string)18	networks := make(chan string)19	aliases := make(chan string)20	gateways := make(chan string)21	subnets := make(chan string)22	ipRanges := make(chan string)23	drivers := make(chan string)24	options := make(chan string)25	internal := make(chan bool)

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	network, err := testcontainers.GenericNetwork(ctx, testcontainers.GenericNetworkRequest{5		NetworkRequest: testcontainers.NetworkRequest{6		},7	})8	if err != nil {9		log.Fatal(err)10	}11	req1 := testcontainers.ContainerRequest{12		ExposedPorts: []string{"6379/tcp"},13		WaitingFor:   wait.ForListeningPort("6379/tcp"),14		Networks:     []string{network.Name()},15	}16	req2 := testcontainers.ContainerRequest{17		ExposedPorts: []string{"5432/tcp"},18		WaitingFor:   wait.ForListeningPort("5432/tcp"),19		Networks:     []string{network.Name()},20	}21	res, err := testcontainers.Parallel().Run(ctx, req1, req2)22	if err != nil {23		log.Fatal(err)24	}25	redisContainer, _ := res.Container(req1)26	postgresContainer, _ := res.Container(req2)27	redisIP, _ := redisContainer.Host(ctx)28	postgresIP, _ := postgresContainer.Host(ctx)29	redisPort, _ := redisContainer.MappedPort(ctx, "6379/tcp")30	postgresPort, _ := postgresContainer.MappedPort(ctx, "5432/tcp")31	fmt.Printf("Redis IP: %s, Port: %s32", redisIP, redisPort.Port())33	fmt.Printf("Postgres IP: %s, Port: %s34", postgresIP, postgresPort.Port())35	if err := res.Stop(ctx); err != nil {36		log.Fatal(err)37	}38	if err := res.Terminate(ctx);

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	req := testcontainers.ContainerRequest{4		Cmd:          []string{"sleep", "5m"},5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForListeningPort("80/tcp"),7	}8	ctx := testcontainers.NewLocalDockerProvider().Context()9	containers, err := testcontainers.ParallelRun(ctx, req, 5)10	if err != nil {11		log.Fatal(err)12	}13	for _, container := range containers {14		defer container.Terminate(ctx)15	}16	ip, err := containers[0].Host(ctx)17	if err != nil {18		log.Fatal(err)19	}20	port, err := containers[0].MappedPort(ctx, "80/tcp")21	if err != nil {22		log.Fatal(err)23	}24	fmt.Println("IP Address: ", ip)25	fmt.Println("Port: ", port.Int())26}

parallelContainersRunner

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"echo", "Hello world!"},6		WaitingFor:   wait.ForLog("Hello world!"),7	}8	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer c.Terminate(ctx)14	log.Println(c.GetContainerID())15}16import (17func main() {18	ctx := context.Background()19	req := testcontainers.ContainerRequest{20		Cmd:          []string{"echo", "Hello world!"},21		WaitingFor:   wait.ForLog("Hello world!"),22	}23	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{24	})25	if err != nil {26		log.Fatal(err)27	}28	defer c.Terminate(ctx)29	log.Println(c.GetContainerID())30}31import (32func main() {33	ctx := context.Background()34	req := testcontainers.ContainerRequest{35		Cmd:          []string{"echo", "Hello world!"},36		WaitingFor:   wait.ForLog("Hello world!"),37	}38	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{

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.