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

How to use WithEnv method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.WithEnv

base_container.go

Source:base_container.go

...60func (bc *BaseContainer) WithCmd(cmd []string) *BaseContainer {61	bc.containerRequest.Cmd = append(bc.containerRequest.Cmd, cmd...)62	return bc63}64// WithEnv sets the environment variable to the container.65func (bc *BaseContainer) WithEnv(env map[string]string) *BaseContainer {66	if bc.containerRequest.Env == nil {67		bc.containerRequest.Env = make(map[string]string)68	}69	for k, v := range env {70		bc.containerRequest.Env[k] = v71	}72	return bc73}74// ExposedPorts exposes the ports from the container.75func (bc *BaseContainer) ExposedPorts(ports []string) *BaseContainer {76	bc.containerRequest.ExposedPorts = append(bc.containerRequest.ExposedPorts, ports...)77	return bc78}79// WaitForPort waits for the container ports exposed....

testcontainers.go

Source:testcontainers.go

...15}16func NewTestContainers() TestContainers {17	return TestContainers{startupTimeout: 20}18}19func (r TestContainers) WithEnv(env map[string]string) TestContainers {20	r.env = env21	return r22}23func (r TestContainers) WithMounts(containerMounts ...testcontainers.ContainerMount) TestContainers {24	r.containerMounts = append(r.containerMounts, containerMounts...)25	return r26}27func (r TestContainers) WithExposedPorts(values ...string) TestContainers {28	r.publishPorts = append(r.publishPorts, values...)29	return r30}31func (r TestContainers) WithWaitingFor(waitStrategy wait.Strategy) TestContainers {32	r.waitStrategy = waitStrategy33	return r...

runDocker-compose.go

Source:runDocker-compose.go

...10	identifier := strings.ToLower(uuid.New().String())11	compose := testcontainers.NewLocalDockerCompose(composeFilePaths, identifier)12	execError := compose.13		WithCommand([]string{"up", "-d"}).14		WithEnv(map[string]string{15			"key1": "value1",16			"key2": "value2",17		}).18		Invoke()19	err := execError.Error20	if err != nil {21		return fmt.Errorf("Could not run compose file: %v - %v", composeFilePaths, err)22	}23	return nil24}25func DownDockerCompose(identifier string) error {26	composeFilePaths := []string{"./docker-compose.yml"}27	compose := testcontainers.NewLocalDockerCompose(composeFilePaths, identifier)28	execError := compose.Down()...

WithEnv

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"sh", "-c", "while true; do echo hello world; sleep 1; done"},6		WaitingFor:   wait.ForLog("hello world"),7		ExposedPorts: []string{"8080/tcp"},8		Env:          map[string]string{"ENV1": "ENV1_VALUE", "ENV2": "ENV2_VALUE"},9	}10	alpine, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{11	})12	if err != nil {13		log.Fatal(err)14	}15	id, err := alpine.ContainerID(ctx)16	if err != nil {17		log.Fatal(err)18	}19	fmt.Println("Container ID: ", id)20	ip, err := alpine.Host(ctx)21	if err != nil {22		log.Fatal(err)23	}24	fmt.Println("Container IP: ", ip)25	port, err := alpine.MappedPort(ctx, "8080")26	if err != nil {27		log.Fatal(err)28	}29	fmt.Println("Container Port: ", port.Int())30	env, err := alpine.Env(ctx)31	if err != nil {32		log.Fatal(err)33	}34	fmt.Println("Container Env: ", env)35	logs, err := alpine.Logs(ctx)36	if err != nil {37		log.Fatal(err)38	}39	fmt.Println("Container Logs: ", logs)40	err = alpine.Terminate(ctx)41	if err != nil {42		log.Fatal(err)43	}44	err = alpine.Remove(ctx)45	if err != nil {46		log.Fatal(err)47	}48}

WithEnv

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"27017/tcp"},6		WaitingFor:   wait.ForLog("waiting for connections on port"),7		Env: map[string]string{8		},9	}10	mongo, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{11	})12	if err != nil {13		panic(err)14	}15	defer mongo.Terminate(ctx)16	mongoPort, err := mongo.MappedPort(ctx, "27017")17	if err != nil {18		panic(err)19	}20	fmt.Printf("Mongo port is: %d21", mongoPort.Int())22	mongoHost, err := mongo.Host(ctx)23	if err != nil {24		panic(err)25	}26	fmt.Printf("Mongo host is: %s

WithEnv

Using AI Code Generation

1func TestWithEnv(t *testing.T) {2	ctx := context.Background()3	req := testcontainers.ContainerRequest{4		Cmd:          []string{"echo", "hello world"},5		WaitingFor:   wait.ForLog("hello world"),6		ExposedPorts: []string{"80/tcp"},7	}8	req.WithEnv("hello", "world")9	req.WithEnvs(map[string]string{"hello": "world"})10	req.BindMounts = map[string]string{"./test.txt": "/etc/test.txt"}11	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{12	})13	if err != nil {14		t.Fatal(err)15	}16	defer c.Terminate(ctx)17}

WithEnv

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForLog("Hello from Docker!"),7	}8	req.WithEnv("ENV1", "VALUE1")9	req.WithEnv("ENV2", "VALUE2")10	req.WithEnv("ENV3", "VALUE3")11	req.WithEnv("ENV4", "VALUE4")12	req.WithEnv("ENV5", "VALUE5")13	req.WithEnv("ENV6", "VALUE6")14	req.WithEnv("ENV7", "VALUE7")15	req.WithEnv("ENV8", "VALUE8")16	req.WithEnv("ENV9", "VALUE9")17	req.WithEnv("ENV10", "VALUE10")18	req.WithEnv("ENV11", "VALUE11")19	req.WithEnv("ENV12", "VALUE12")20	req.WithEnv("ENV13", "VALUE13")21	req.WithEnv("ENV14", "VALUE14")22	req.WithEnv("ENV15", "VALUE15")23	req.WithEnv("ENV16", "VALUE16")24	req.WithEnv("ENV17", "VALUE17")25	req.WithEnv("ENV18", "VALUE18")26	req.WithEnv("ENV19", "VALUE19")27	req.WithEnv("ENV20", "VALUE20")28	req.WithEnv("ENV21", "VALUE21")29	req.WithEnv("ENV22", "VALUE22")30	req.WithEnv("ENV23", "VALUE23")31	req.WithEnv("ENV24", "VALUE24")32	req.WithEnv("ENV25", "VALUE25")33	req.WithEnv("ENV26

WithEnv

Using AI Code Generation

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		Env:          map[string]string{"REDIS_PASSWORD": "redis"},8	}9	redis, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	port, err := redis.MappedPort(ctx, "6379")15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println("port: ", port.Int())19	host, err := redis.Host(ctx)20	if err != nil {21		log.Fatal(err)22	}23	fmt.Println("host: ", host)24	defer redis.Terminate(ctx)25	err = os.Setenv("REDIS_HOST", host)26	if err != nil {27		log.Fatal(err)28	}29	err = os.Setenv("REDIS_PORT", strconv.Itoa(port.Int()))30	if err != nil {31		log.Fatal(err)32	}33	fmt.Println("run the test")34}35import (36func main() {37	ctx := context.Background()38	req := testcontainers.ContainerRequest{39		ExposedPorts: []string{"6379/tcp"},40		WaitingFor:   wait.ForLog("Ready to accept connections"),41	}42	redis, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{

WithEnv

Using AI Code Generation

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

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.