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How to use Close method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.Close

testcontainers.go

Source:testcontainers.go

...31	oracleUrl := initOracle()32	prestoUrl := initPresto()33	_ = ioutil.WriteFile("config.env", []byte(fmt.Sprintf(`DATABASES=["%s", "%s", "%s"]`, postgresUrl, oracleUrl, prestoUrl)), os.ModePerm)34}35func Close() {36	if postgres != nil {37		_ = postgres.Terminate(context.Background())38	}39	if oracle != nil {40		_ = oracle.Terminate(context.Background())41	}42	if presto != nil {43		_ = presto.Terminate(context.Background())44	}45	if network != nil {46		_ = network.Remove(context.Background())47	}48}49func initPostgres() string {50	ctx := context.Background()51	strPort := "5432/tcp"52	postgresEnv := make(map[string]string)53	postgresEnv["POSTGRES_PASSWORD"] = "postgres"54	postgresEnv["POSTGRES_USER"] = "postgres"55	postgresEnv["POSTGRES_DB"] = "postgres"56	postgres = initContainer("test_postgres", "mdillon/postgis:9.6", strPort, postgresEnv)57	host, err := postgres.Host(ctx)58	utils.FailIfError(err)59	mappedPort, err := postgres.MappedPort(ctx, nat.Port(strPort))60	utils.FailIfError(err)61	url := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable", host, mappedPort.Port(), "postgres", "postgres", "postgres")62	db, err := sql.Open("postgres", url)63	utils.FailIfError(err)64	defer utils.CloseSafe(db)65	err = waitForPing(db)66	utils.FailIfError(err)67	return fmt.Sprintf("PostgresDb;poSTgres:postgres/postgres@%s:%s/postgres", host, mappedPort.Port())68}69func initOracle() string {70	ctx := context.Background()71	strPort := "1521/tcp"72	oracle = initContainer("test_oralce", "oracleinanutshell/oracle-xe-11g", "1521/tcp", make(map[string]string))73	host, err := oracle.Host(ctx)74	utils.FailIfError(err)75	mappedPort, err := oracle.MappedPort(ctx, nat.Port(strPort))76	utils.FailIfError(err)77	url := fmt.Sprintf("%s/%s@%s:%s/%s", "system", "oracle", host, mappedPort.Port(), "xe")78	db, err := sql.Open("goracle", url)79	utils.FailIfError(err)80	defer utils.CloseSafe(db)81	err = waitForPing(db)82	utils.FailIfError(err)83	return fmt.Sprintf("OracleDb;Oracle:system/oracle@%s:%s/xe", host, mappedPort.Port())84}85func initPresto() string {86	ctx := context.Background()87	connector := fmt.Sprintf(`connector.name=postgresql88connection-url=jdbc:postgresql://%s:%s/postgres89connection-user=postgres90connection-password=postgres`, "test_postgres", "5432")91	err := ioutil.WriteFile("./presto-image/catalog/postgresql.properties", []byte(connector), os.ModePerm)92	utils.FailIfError(err)93	strPort := "8080/tcp"94	req := testcontainers.ContainerRequest{95		FromDockerfile: testcontainers.FromDockerfile{96			Dockerfile: "Dockerfile",97			Context:    "./presto-image",98		},99		ExposedPorts: []string{strPort},100		Networks:     []string{networkName},101		WaitingFor:   wait.ForLog("======== SERVER STARTED ========"),102	}103	presto, err = testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{104		ContainerRequest: req,105		Started:          true,106	})107	utils.FailIfError(err)108	host, err := presto.Host(ctx)109	utils.FailIfError(err)110	mappedPort, err := presto.MappedPort(ctx, nat.Port(strPort))111	utils.FailIfError(err)112	url := fmt.Sprintf("http://user@%s:%s", host, mappedPort.Port())113	db, err := sql.Open("presto", url)114	utils.FailIfError(err)115	defer utils.CloseSafe(db)116	err = waitForPing(db)117	utils.FailIfError(err)118	time.Sleep(3 * time.Second)119	return fmt.Sprintf("PrestoDb;presto:user/password@%s:%s", host, mappedPort.Port())120}121func initContainer(name string, image string, port string, env map[string]string) testcontainers.Container {122	ctx := context.Background()123	req := testcontainers.ContainerRequest{124		Name:         name,125		Image:        image,126		Env:          env,127		ExposedPorts: []string{port},128		Networks:     []string{networkName},129	}...

testcontainer.go

Source:testcontainer.go

...27		conn, err := Connect(r.ctx, cfg)28		if err != nil {29			return err30		}31		defer func(toClose *DBConnection) {32			cErr := toClose.Close()33			if cErr != nil {34				// report close errors35				if err == nil {36					err = cErr37				} else {38					err = errors.Wrap(err, cErr.Error())39				}40			}41		}(conn)42		r.conn = conn43		runTests(t)44		return err45	})46	if err != nil {47		t.Fatalf("failed to start container %v", err)48	}49}50func (r *DatabaseRunner) Connection() *DBConnection {51	return r.conn52}53func (r *DatabaseRunner) Cleanup(t *testing.T) func() {54	return func() {55		cErr := r.conn.Cleanup()56		if cErr != nil {57			t.Fatalf("failed to cleanup database %v", cErr)58		}59	}60}61func (r *DatabaseRunner) runPostgresContainer(f func(c config.Database) error) error {62	_, file, _, ok := runtime.Caller(0)63	if !ok {64		return fmt.Errorf("failed to get caller")65	}66	dbDirLink := filepath.Join(filepath.Dir(file), "testdata", "db")67	dbDir, err := filepath.EvalSymlinks(dbDirLink)68	if err != nil {69		return err70	}71	username := "tester"72	password := "tester"73	database := "cardmanager"74	// TODO read env variables from config75	req := testcontainers.ContainerRequest{76		Image:        "postgres:14-alpine",77		ExposedPorts: []string{"5432/tcp"},78		Mounts: testcontainers.Mounts(79			testcontainers.BindMount(dbDir, "/docker-entrypoint-initdb.d"),80		),81		Env: map[string]string{82			"POSTGRES_DB":       "postgres",83			"POSTGRES_PASSWORD": "test",84			"APP_DB_USER":       username,85			"APP_DB_PASS":       password,86			"APP_DB_NAME":       database,87		},88		AlwaysPullImage: true,89		SkipReaper:      true,90		WaitingFor:      wait.ForLog("[1] LOG:  database system is ready to accept connections"),91	}92	postgresC, err := testcontainers.GenericContainer(r.ctx, testcontainers.GenericContainerRequest{93		ContainerRequest: req,94		Started:          true,95	})96	if err != nil {97		return err98	}99	defer func(toClose testcontainers.Container) {100		cErr := toClose.Terminate(r.ctx)101		if cErr != nil {102			// report close errors103			if err == nil {104				err = cErr105			} else {106				err = errors.Wrap(err, cErr.Error())107			}108		}109	}(postgresC)110	if log.Debug().Enabled() {111		logs, err := postgresC.Logs(r.ctx)112		if err != nil {113			return err114		}115		defer logs.Close()116		b, err := io.ReadAll(logs)117		if err != nil {118			return err119		}120		log.Debug().Msg(string(b))121	}122	ip, err := postgresC.Host(r.ctx)123	if err != nil {124		return err125	}126	mappedPort, err := postgresC.MappedPort(r.ctx, "5432")127	if err != nil {128		return err129	}...

mqttdevice_test.go

Source:mqttdevice_test.go

...35}36func TestIntegration(t *testing.T) {37	ctx, mqttC, mqttUri := startMqttContainer(t)38	defer mqttC.Terminate(ctx)39	t.Run("ConnectAndClose", func(t *testing.T) {40		t.Logf("Mqtt connection %s ready", mqttUri)41		p := PahoMqttPublisher{Uri: mqttUri, ClientId: "TestMqtt", Username: "guest", Password: "guest"}42		p.Connect()43		p.Close()44	})45	t.Run("Publish", func(t *testing.T) {46		options := mqtt.NewClientOptions().AddBroker(mqttUri)47		options.SetUsername("guest")48		options.SetPassword("guest")49		client := mqtt.NewClient(options)50		token := client.Connect()51		defer client.Disconnect(100)52		token.Wait()53		if token.Error() != nil {54			t.Fatalf("unable to connect to mqtt broker: %v\n", token.Error())55		}56		c := make(chan string)57		defer close(c)58		client.Subscribe("test/publish", 0, func(client mqtt.Client, message mqtt.Message) {59			c <- string(message.Payload())60		}).Wait()61		p := PahoMqttPublisher{Uri: mqttUri, ClientId: "TestMqtt", Username: "guest", Password: "guest"}62		p.Connect()63		defer p.Close()64		p.Publish("test/publish", "Test1234")65		result := <-c66		if result != "Test1234" {67			t.Fatalf("bad message: %v\n", result)68		}69	})70}...

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		panic(err)12	}13	defer postgres.Terminate(ctx)14	port, err := postgres.MappedPort(ctx, "5432/tcp")15	if err != nil {16		panic(err)17	}18	fmt.Println(port.Int())19}20import (21func main() {22	ctx := context.Background()23	req := testcontainers.ContainerRequest{24		ExposedPorts: []string{"5432/tcp"},25		WaitingFor:   wait.ForListeningPort("5432/tcp"),26	}27	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28	})29	if err != nil {30		panic(err)31	}32	defer postgres.Terminate(ctx)33	err = postgres.Start(ctx)34	if err != nil {35		panic(err)36	}37	port, err := postgres.MappedPort(ctx, "5432/tcp")38	if err != nil {39		panic(err)40	}41	fmt.Println(port.Int())42}43import (44func main() {45	ctx := context.Background()46	req := testcontainers.ContainerRequest{47		ExposedPorts: []string{"5432/tcp"},48		WaitingFor:   wait.ForListeningPort("5432/tcp"),49	}50	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"8080/tcp"},6		WaitingFor:   wait.ForListeningPort("8080/tcp"),7	}8	container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer container.Terminate(ctx)14	ip, err := container.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	port, err := container.MappedPort(ctx, "8080/tcp")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(ip, port.Int())23	time.Sleep(5 * time.Second)24}

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"3306/tcp"},6		WaitingFor:   wait.ForLog("port: 3306  MySQL Community Server - GPL"),7	}8	mysqlContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer mysqlContainer.Terminate(ctx)14	ip, err := mysqlContainer.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	port, err := mysqlContainer.MappedPort(ctx, "3306")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(ip, port.Int())23	time.Sleep(30 * time.Second)24}

Using AI Code Generation

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

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"6379/tcp"},6		WaitingFor:   wait.ForListeningPort("6379/tcp"),7	}8	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatalf("Could not start container: %v", err)12	}13	ip, err := redisContainer.Host(ctx)14	if err != nil {15		log.Fatalf("Could not get container IP: %v", err)16	}17	port, err := redisContainer.MappedPort(ctx, "6379")18	if err != nil {19		log.Fatalf("Could not get container port: %v", err)20	}21	out, err := exec.Command("redis-cli", "-h", ip, "-p", port.Port(), "PING").Output()22	if err != nil {23		log.Fatalf("Could not run Redis command: %v", err)24	}25	fmt.Println(string(out))26	time.Sleep(5 * time.Second)27	redisContainer.Terminate(ctx)28}29import (30func main() {

Using AI Code Generation

1import (2func TestMain(m *testing.M) {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"5432/tcp"},6		WaitingFor:   wait.ForLog("database system is ready to accept connections"),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	postgresIP, err := postgres.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	postgresPort, err := postgres.MappedPort(ctx, "5432/tcp")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(postgresIP)23	fmt.Println(postgresPort.Int())24	os.Exit(m.Run())25}26import (27func TestMain(m *testing.M) {28	fmt.Println("Hello")29}30require (

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"9200/tcp", "9300/tcp"},6		WaitingFor:   wait.ForListeningPort("9200/tcp"),7	}8	elasticContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		panic(err)12	}13	defer elasticContainer.Terminate(ctx)14	ip, err := elasticContainer.Host(ctx)15	if err != nil {16		panic(err)17	}18	port, err := elasticContainer.MappedPort(ctx, "9200/tcp")19	if err != nil {20		panic(err)21	}22	fmt.Printf("Elasticsearch is up and running on %s:%s", ip, port.Port())23}

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"6379/tcp"},6		WaitingFor:   wait.ForListeningPort("6379/tcp"),7	}8	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	ip, err := redisContainer.Host(ctx)14	if err != nil {15		log.Fatal(err)16	}17	port, err := redisContainer.MappedPort(ctx, "6379")18	if err != nil {19		log.Fatal(err)20	}21	fmt.Printf("Container IP: %s, Port: %s22", ip, port.Port())23	defer redisContainer.Terminate(ctx)24}

Using AI Code Generation

1import (2func TestClose(t *testing.T) {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"3306/tcp"},6		WaitingFor:   wait.ForLog("port: 3306  MySQL Community Server - GPL").WithStartupTimeout(60 * time.Second),7	}8	mysql, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer mysql.Terminate(ctx)14	port, err := mysql.MappedPort(ctx, "3306/tcp")15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(port.Int())19	ip, err := mysql.Host(ctx)20	if err != nil {21		log.Fatal(err)22	}23	fmt.Println(ip)24	mysql.Terminate(ctx)25}26import (27func TestClose(t *testing.T) {28	ctx := context.Background()29	req := testcontainers.ContainerRequest{30		ExposedPorts: []string{"3306/tcp"},31		WaitingFor:   wait.ForLog("port: 3306  MySQL Community Server - GPL").WithStartupTimeout(60 * time.Second),32	}33	mysql, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{34	})35	if err != nil {36		log.Fatal(err)37	}38	defer mysql.Terminate(ctx)39	port, err := mysql.MappedPort(ctx, "3306/tcp")40	if err != nil {41		log.Fatal(err)42	}43	fmt.Println(port.Int())44	ip, err := mysql.Host(ctx

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