How to use TestShouldStartContainersInParallel method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.TestShouldStartContainersInParallel

container_test.go

Source: container_test.go Github

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...286 if strings.Contains(log, "I was not expecting this") == false {287 t.Fatalf("could not find expected log in %s", log)288 }289}290func TestShouldStartContainersInParallel(t *testing.T) {291 ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)292 t.Cleanup(cancel)293 for i := 0; i < 3; i++ {294 t.Run(fmt.Sprintf("iteration_%d", i), func(t *testing.T) {295 t.Parallel()296 createTestContainer(t, ctx)297 })298 }299}300func createTestContainer(t *testing.T, ctx context.Context) int {301 req := ContainerRequest{302 Image: "nginx",303 ExposedPorts: []string{"80/​tcp"},304 WaitingFor: wait.ForHTTP("/​"),...

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TestShouldStartContainersInParallel

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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 container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9 })10 if err != nil {11 panic(err)12 }13 defer container.Terminate(ctx)14 logs, err := container.Logs(ctx)15 if err != nil {16 panic(err)17 }18 fmt.Println(logs)19}20import (21func main() {22 ctx := context.Background()23 req := testcontainers.ContainerRequest{24 Cmd: []string{"echo", "hello world"},25 WaitingFor: wait.ForLog("hello world"),26 }27 container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28 })29 if err != nil {30 panic(err)31 }32 defer container.Terminate(ctx)33 logs, err := container.Logs(ctx)34 if err != nil {35 panic(err)36 }37 fmt.Println(logs)38}39import (40func main() {41 ctx := context.Background()42 req := testcontainers.ContainerRequest{43 Cmd: []string{"echo", "hello world"},44 WaitingFor: wait.ForLog("hello world"),45 }46 container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{47 })

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TestShouldStartContainersInParallel

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1import (2func main() {3 ctx := context.Background()4 req := testcontainers.ContainerRequest{5 ExposedPorts: []string{"6379/​tcp"},6 WaitingFor: wait.ForLog("Ready to accept connections"),7 }8 containers, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9 })10 if err != nil {11 log.Fatalln(err)12 }13 defer containers.Terminate(ctx)14 for _, container := range containers {15 ip, err := container.Host(ctx)16 if err != nil {17 log.Fatalln(err)18 }19 port, err := container.MappedPort(ctx, "6379")20 if err != nil {21 log.Fatalln(err)22 }23 fmt.Println(ip, port.Int())24 }25}

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TestShouldStartContainersInParallel

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1import (2func main() {3 ctx := context.Background()4 req := testcontainers.ContainerRequest{5 ExposedPorts: []string{"6379/​tcp"},6 WaitingFor: wait.ForListeningPort("6379/​tcp"),7 }8 containers, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9 })10 host, _ := containers[0].Host(ctx)11 port, _ := containers[0].Port(ctx, "6379/​tcp")12 fmt.Println(host)13 fmt.Println(port)14}

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TestShouldStartContainersInParallel

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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: %v", err)10 }11 req := testcontainers.ContainerRequest{12 Cmd: []string{"sleep", "999999999"},13 ExposedPorts: []string{"80/​tcp"},14 WaitingFor: wait.ForLog("listening on port 80"),15 }16 container1, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{17 })18 if err != nil {19 log.Fatalf("Could not start container: %v", err)20 }21 req = testcontainers.ContainerRequest{22 Cmd: []string{"sleep", "999999999"},23 ExposedPorts: []string{"80/​tcp"},24 WaitingFor: wait.ForLog("listening on port 80"),25 }26 container2, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{27 })28 if err != nil {29 log.Fatalf("Could not start container: %v", err)30 }31 ip1, err := container1.Host(ctx)32 if err != nil {33 log.Fatalf("Could not get container IP: %v", err)34 }35 ip2, err := container2.Host(ctx)36 if err != nil {37 log.Fatalf("Could not get container IP: %v", err)38 }39 port1, err := container1.MappedPort(ctx, "80")40 if err != nil {41 log.Fatalf("Could not get mapped port: %v", err)42 }

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TestShouldStartContainersInParallel

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1import (2func main() {3 ctx := context.Background()4 req := testcontainers.ContainerRequest{5 Cmd: []string{"sleep", "10000"},6 ExposedPorts: []string{"80/​tcp"},7 WaitingFor: testcontainers.WaitingForLog("Listening"),8 }9 containers, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10 })11 if err != nil {12 log.Fatal(err)13 }14 if len(containers) != 10 {15 log.Fatal("Expected 10 containers, but got ", len(containers))16 }17 for _, c := range containers {18 if err := c.Terminate(ctx); err != nil {19 log.Fatal(err)20 }21 }22}

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TestShouldStartContainersInParallel

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1import (2func main() {3 t := time.Now()4 containers, err := testcontainers.GenericContainer(context.Background(), testcontainers.GenericContainerRequest{5 ContainerRequest: testcontainers.ContainerRequest{6 ExposedPorts: []string{"80/​tcp"},7 WaitingFor: wait.ForLog("Serving HTTP on

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TestShouldStartContainersInParallel

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1import (2func main() {3 ctx := context.Background()4 req := testcontainers.ContainerRequest{5 ExposedPorts: []string{"9200/​tcp"},6 WaitingFor: testcontainers.WaitingForLog("started"),7 }8 containers, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9 })10 if err != nil {11 log.Fatal(err)12 }13 defer containers.Terminate(ctx)14 for _, container := range containers {15 ip, err := container.Host(ctx)16 if err != nil {17 log.Fatal(err)18 }19 port, err := container.MappedPort(ctx, "9200")20 if err != nil {21 log.Fatal(err)22 }23 fmt.Println(ip, port.Int())24 }25}

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TestShouldStartContainersInParallel

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1import (2func main() {3 ctx := context.Background()4 req := testcontainers.ContainerRequest{5 Cmd: []string{"sleep", "1000"},6 ExposedPorts: []string{"80/​tcp"},7 WaitingFor: testcontainers.WaitingForLog("1000"),8 }9 containers, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10 Strategy: testcontainers.ParallelStrategy{},11 })12 if err != nil {13 log.Fatal(err)14 }15 defer containers.Terminate(ctx)16 fmt.Println(containers.GetContainerIDs())17}18import (19func main() {20 ctx := context.Background()21 req := testcontainers.ContainerRequest{22 Cmd: []string{"sleep", "1000"},23 ExposedPorts: []string{"80/​tcp"},24 WaitingFor: testcontainers.WaitingForLog("1000"),25 }26 containers, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{27 Strategy: testcontainers.ParallelStrategy{},28 })29 if err != nil {30 log.Fatal(err)31 }32 defer containers.Terminate(ctx)33 fmt.Println(containers.GetContainerIDs())34}35import (36func main() {37 ctx := context.Background()38 req := testcontainers.ContainerRequest{

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