Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use checkIfError method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.checkIfError

compose_test.go

Source:compose_test.go

...75	identifier := strings.ToLower(uuid.New().String())76	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))77	destroyFn := func() {78		err := compose.Down()79		checkIfError(t, err)80	}81	defer destroyFn()82	err := compose.83		WithCommand([]string{"up", "-d"}).84		Invoke()85	checkIfError(t, err)86}87func TestDockerComposeStrategyForInvalidService(t *testing.T) {88	path := "./testresources/docker-compose-simple.yml"89	identifier := strings.ToLower(uuid.New().String())90	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))91	destroyFn := func() {92		err := compose.Down()93		checkIfError(t, err)94	}95	defer destroyFn()96	err := compose.97		WithCommand([]string{"up", "-d"}).98		// Appending with _1 as given in the Java Test-Containers Example99		WithExposedService("mysql_1", 13306, wait.NewLogStrategy("started").WithStartupTimeout(10*time.Second).WithOccurrence(1)).100		Invoke()101	assert.NotEqual(t, err.Error, nil, "Expected error to be thrown because service with wait strategy is not running")102	assert.Equal(t, 1, len(compose.Services))103	assert.Contains(t, compose.Services, "nginx")104}105func TestDockerComposeWithWaitLogStrategy(t *testing.T) {106	path := "./testresources/docker-compose-complex.yml"107	identifier := strings.ToLower(uuid.New().String())108	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))109	destroyFn := func() {110		err := compose.Down()111		checkIfError(t, err)112	}113	defer destroyFn()114	err := compose.115		WithCommand([]string{"up", "-d"}).116		// Appending with _1 as given in the Java Test-Containers Example117		WithExposedService("mysql_1", 13306, wait.NewLogStrategy("started").WithStartupTimeout(10*time.Second).WithOccurrence(1)).118		Invoke()119	checkIfError(t, err)120	assert.Equal(t, 2, len(compose.Services))121	assert.Contains(t, compose.Services, "nginx")122	assert.Contains(t, compose.Services, "mysql")123}124func TestDockerComposeWithWaitForService(t *testing.T) {125	path := "./testresources/docker-compose-simple.yml"126	identifier := strings.ToLower(uuid.New().String())127	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))128	destroyFn := func() {129		err := compose.Down()130		checkIfError(t, err)131	}132	defer destroyFn()133	err := compose.134		WithCommand([]string{"up", "-d"}).135		WithEnv(map[string]string{136			"bar": "BAR",137		}).138		WaitForService("nginx_1", wait.NewHTTPStrategy("/").WithPort("80/tcp").WithStartupTimeout(10*time.Second)).139		Invoke()140	checkIfError(t, err)141	assert.Equal(t, 1, len(compose.Services))142	assert.Contains(t, compose.Services, "nginx")143}144func TestDockerComposeWithWaitHTTPStrategy(t *testing.T) {145	path := "./testresources/docker-compose-simple.yml"146	identifier := strings.ToLower(uuid.New().String())147	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))148	destroyFn := func() {149		err := compose.Down()150		checkIfError(t, err)151	}152	defer destroyFn()153	err := compose.154		WithCommand([]string{"up", "-d"}).155		WithEnv(map[string]string{156			"bar": "BAR",157		}).158		WithExposedService("nginx_1", 9080, wait.NewHTTPStrategy("/").WithPort("80/tcp").WithStartupTimeout(10*time.Second)).159		Invoke()160	checkIfError(t, err)161	assert.Equal(t, 1, len(compose.Services))162	assert.Contains(t, compose.Services, "nginx")163}164func TestDockerComposeWithContainerName(t *testing.T) {165	path := "./testresources/docker-compose-container-name.yml"166	identifier := strings.ToLower(uuid.New().String())167	compose := NewLocalDockerCompose([]string{path}, identifier)168	destroyFn := func() {169		err := compose.Down()170		checkIfError(t, err)171	}172	defer destroyFn()173	err := compose.174		WithCommand([]string{"up", "-d"}).175		WithEnv(map[string]string{176			"bar": "BAR",177		}).178		WithExposedService("nginxy", 9080, wait.NewHTTPStrategy("/").WithPort("80/tcp").WithStartupTimeout(10*time.Second)).179		Invoke()180	checkIfError(t, err)181	assert.Equal(t, 1, len(compose.Services))182	assert.Contains(t, compose.Services, "nginx")183}184func TestDockerComposeWithWaitStrategy_NoExposedPorts(t *testing.T) {185	path := "./testresources/docker-compose-no-exposed-ports.yml"186	identifier := strings.ToLower(uuid.New().String())187	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))188	destroyFn := func() {189		err := compose.Down()190		checkIfError(t, err)191	}192	defer destroyFn()193	err := compose.194		WithCommand([]string{"up", "-d"}).195		WithExposedService("nginx_1", 9080, wait.ForLog("Configuration complete; ready for start up")).196		Invoke()197	checkIfError(t, err)198	assert.Equal(t, 1, len(compose.Services))199	assert.Contains(t, compose.Services, "nginx")200}201func TestDockerComposeWithMultipleWaitStrategies(t *testing.T) {202	path := "./testresources/docker-compose-complex.yml"203	identifier := strings.ToLower(uuid.New().String())204	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))205	destroyFn := func() {206		err := compose.Down()207		checkIfError(t, err)208	}209	defer destroyFn()210	err := compose.211		WithCommand([]string{"up", "-d"}).212		WithExposedService("mysql_1", 13306, wait.NewLogStrategy("started").WithStartupTimeout(10*time.Second)).213		WithExposedService("nginx_1", 9080, wait.NewHTTPStrategy("/").WithPort("80/tcp").WithStartupTimeout(10*time.Second)).214		Invoke()215	checkIfError(t, err)216	assert.Equal(t, 2, len(compose.Services))217	assert.Contains(t, compose.Services, "nginx")218	assert.Contains(t, compose.Services, "mysql")219}220func TestDockerComposeWithFailedStrategy(t *testing.T) {221	path := "./testresources/docker-compose-simple.yml"222	identifier := strings.ToLower(uuid.New().String())223	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))224	destroyFn := func() {225		err := compose.Down()226		checkIfError(t, err)227	}228	defer destroyFn()229	err := compose.230		WithCommand([]string{"up", "-d"}).231		WithEnv(map[string]string{232			"bar": "BAR",233		}).234		WithExposedService("nginx_1", 9080, wait.NewHTTPStrategy("/").WithPort("8080/tcp").WithStartupTimeout(5*time.Second)).235		Invoke()236	// Verify that an error is thrown and not nil237	// A specific error message matcher is not asserted since the docker library can change the return message, breaking this test238	assert.NotEqual(t, err.Error, nil, "Expected error to be thrown because of a wrong suplied wait strategy")239	assert.Equal(t, 1, len(compose.Services))240	assert.Contains(t, compose.Services, "nginx")241}242func TestLocalDockerComposeComplex(t *testing.T) {243	path := "./testresources/docker-compose-complex.yml"244	identifier := strings.ToLower(uuid.New().String())245	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))246	destroyFn := func() {247		err := compose.Down()248		checkIfError(t, err)249	}250	defer destroyFn()251	err := compose.252		WithCommand([]string{"up", "-d"}).253		Invoke()254	checkIfError(t, err)255	assert.Equal(t, 2, len(compose.Services))256	assert.Contains(t, compose.Services, "nginx")257	assert.Contains(t, compose.Services, "mysql")258}259func TestLocalDockerComposeWithEnvironment(t *testing.T) {260	path := "./testresources/docker-compose-simple.yml"261	identifier := strings.ToLower(uuid.New().String())262	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))263	destroyFn := func() {264		err := compose.Down()265		checkIfError(t, err)266	}267	defer destroyFn()268	err := compose.269		WithCommand([]string{"up", "-d"}).270		WithEnv(map[string]string{271			"bar": "BAR",272		}).273		Invoke()274	checkIfError(t, err)275	assert.Equal(t, 1, len(compose.Services))276	assert.Contains(t, compose.Services, "nginx")277	containerNameNginx := compose.Identifier + "_nginx_1"278	present := map[string]string{279		"bar": "BAR",280	}281	absent := map[string]string{}282	assertContainerEnvironmentVariables(t, containerNameNginx, present, absent)283}284func TestLocalDockerComposeWithMultipleComposeFiles(t *testing.T) {285	composeFiles := []string{286		"testresources/docker-compose-simple.yml",287		"testresources/docker-compose-postgres.yml",288		"testresources/docker-compose-override.yml",289	}290	identifier := strings.ToLower(uuid.New().String())291	compose := NewLocalDockerCompose(composeFiles, identifier, WithLogger(TestLogger(t)))292	destroyFn := func() {293		err := compose.Down()294		checkIfError(t, err)295	}296	defer destroyFn()297	err := compose.298		WithCommand([]string{"up", "-d"}).299		WithEnv(map[string]string{300			"bar": "BAR",301			"foo": "FOO",302		}).303		Invoke()304	checkIfError(t, err)305	assert.Equal(t, 3, len(compose.Services))306	assert.Contains(t, compose.Services, "nginx")307	assert.Contains(t, compose.Services, "mysql")308	assert.Contains(t, compose.Services, "postgres")309	containerNameNginx := compose.Identifier + "_nginx_1"310	present := map[string]string{311		"bar": "BAR",312		"foo": "FOO",313	}314	absent := map[string]string{}315	assertContainerEnvironmentVariables(t, containerNameNginx, present, absent)316}317func TestLocalDockerComposeWithVolume(t *testing.T) {318	path := "./testresources/docker-compose-volume.yml"319	identifier := strings.ToLower(uuid.New().String())320	compose := NewLocalDockerCompose([]string{path}, identifier, WithLogger(TestLogger(t)))321	destroyFn := func() {322		err := compose.Down()323		checkIfError(t, err)324		assertVolumeDoesNotExist(t, fmt.Sprintf("%s_mydata", identifier))325	}326	defer destroyFn()327	err := compose.328		WithCommand([]string{"up", "-d"}).329		Invoke()330	checkIfError(t, err)331}332func assertVolumeDoesNotExist(t *testing.T, volume string) {333	args := []string{"volume", "inspect", volume}334	output, _ := executeAndGetOutput("docker", args)335	if !strings.Contains(output, "No such volume") {336		t.Fatalf("Expected volume %q to not exist", volume)337	}338}339func assertContainerEnvironmentVariables(t *testing.T, containerName string, present map[string]string, absent map[string]string) {340	args := []string{"exec", containerName, "env"}341	output, err := executeAndGetOutput("docker", args)342	checkIfError(t, err)343	for k, v := range present {344		keyVal := k + "=" + v345		assert.Contains(t, output, keyVal)346	}347	for k, v := range absent {348		keyVal := k + "=" + v349		assert.NotContains(t, output, keyVal)350	}351}352func checkIfError(t *testing.T, err ExecError) {353	if err.Error != nil {354		t.Fatalf("Failed when running %v: %v", err.Command, err.Error)355	}356	if err.Stdout != nil {357		t.Fatalf("An error in Stdout happened when running %v: %v", err.Command, err.Stdout)358	}359	if err.Stderr != nil {360		t.Fatalf("An error in Stderr happened when running %v: %v", err.Command, err.Stderr)361	}362	assert.NotNil(t, err.StdoutOutput)363	assert.NotNil(t, err.StderrOutput)364}365func executeAndGetOutput(command string, args []string) (string, ExecError) {366	cmd := exec.Command(command, args...)...

shared.go

Source:shared.go

...51func dockerCompose(ctx context.Context, path string) (func(), error) {52	compose := testcontainers.NewLocalDockerCompose([]string{path}, "mongo-set")53	destroyFn := func() {54		exErr := compose.Down()55		if err := checkIfError(exErr); err != nil {56			log.Printf("Error on compose shutdown: %v\n", err)57		}58	}59	exErr := compose.Down()60	if err := checkIfError(exErr); err != nil {61		return nil, err62	}63	exErr = compose.64		WithCommand([]string{"up", "-d"}).65		Invoke()66	err := checkIfError(exErr)67	if err != nil {68		destroyFn()69		return nil, err70	}71	return destroyFn, err72}73func checkIfError(err testcontainers.ExecError) error {74	if err.Error != nil {75		return faults.Errorf("Failed when running %v: %v", err.Command, err.Error)76	}77	if err.Stdout != nil {78		return faults.Errorf("An error in Stdout happened when running %v: %v", err.Command, err.Stdout)79	}80	if err.Stderr != nil {81		return faults.Errorf("An error in Stderr happened when running %v: %v", err.Command, err.Stderr)82	}83	return nil84}85func dbSchema(cli *mongo.Client) error {86	cmds := []bson.D{87		{...

shared_test.go

Source:shared_test.go

...46	path := "./docker-compose.yml"47	compose := testcontainers.NewLocalDockerCompose([]string{path}, "cqrs-set")48	destroyFn := func() {49		exErr := compose.Down()50		if err := checkIfError(exErr); err != nil {51			log.Printf("Error on compose shutdown: %v\n", err)52		}53	}54	exErr := compose.Down()55	if err := checkIfError(exErr); err != nil {56		return func() {}, err57	}58	exErr = compose.59		WithCommand([]string{"up", "--build", "-d"}).60		Invoke()61	err := checkIfError(exErr)62	if err != nil {63		return destroyFn, err64	}65	return destroyFn, err66}67func checkIfError(err testcontainers.ExecError) error {68	if err.Error != nil {69		return faults.Errorf("Failed when running %v: %v", err.Command, err.Error)70	}71	if err.Stdout != nil {72		return faults.Errorf("An error in Stdout happened when running %v: %v", err.Command, err.Stdout)73	}74	if err.Stderr != nil {75		return faults.Errorf("An error in Stderr happened when running %v: %v", err.Command, err.Stderr)76	}77	return nil78}79func initElastic() {80	ticker := time.NewTicker(5 * time.Second)81	defer ticker.Stop()...

checkIfError

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        WaitingFor: wait.ForLog("database system is ready to accept connections"),6    }7    postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8    })9    checkIfError(err)10    defer postgresContainer.Terminate(ctx)11    port, err := postgresContainer.MappedPort(ctx, "5432/tcp")12    checkIfError(err)13    fmt.Println(port.Int())14}15import (16func main() {17    ctx := context.Background()18    req := testcontainers.ContainerRequest{19        WaitingFor: wait.ForLog("database system is ready to accept connections"),20    }21    postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{22    })23    checkIfError(err)24    defer postgresContainer.Terminate(ctx)25    port, err := postgresContainer.MappedPort(ctx, "5432/tcp")26    checkIfError(err)27    fmt.Println(port.Int())28}29import (30func main() {31    ctx := context.Background()32    req := testcontainers.ContainerRequest{33        WaitingFor: wait.ForLog("database system is ready to accept connections"),34    }35    postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{36    })37    checkIfError(err)38    defer postgresContainer.Terminate(ctx)39    port, err := postgresContainer.MappedPort(ctx, "5432/tcp")40    checkIfError(err)41    fmt.Println(port.Int())42}

checkIfError

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    container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9    })10    if err != nil {11        panic(err)12    }13    defer container.Terminate(ctx)14    fmt.Println(container.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    container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{24    })25    if err != nil {26        panic(err)27    }28    defer container.Terminate(ctx)29    fmt.Println(container.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    container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{39    })40    if err != nil {41        panic(err)42    }43    defer container.Terminate(ctx)44    fmt.Println(container.GetContainerID())45}

checkIfError

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"8091-8094", "11210-11211"},6		WaitingFor:   wait.ForLog(".*The Server is ready.*"),7	}8	couchbaseContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	checkIfError(err)11	defer couchbaseContainer.Terminate(ctx)12}13import (14func main() {15	ctx := context.Background()16	req := testcontainers.ContainerRequest{17		ExposedPorts: []string{"8091-8094", "11210-11211"},18		WaitingFor:   wait.ForLog(".*The Server is ready.*"),19	}20	couchbaseContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{21	})22	checkIfError(err)23	defer couchbaseContainer.Terminate(ctx)24}25import (26func main() {27	ctx := context.Background()28	req := testcontainers.ContainerRequest{29		ExposedPorts: []string{"8091-8094", "11210-11211"},30		WaitingFor:   wait.ForLog(".*The Server is ready.*"),31	}32	couchbaseContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{33	})34	checkIfError(err)35	defer couchbaseContainer.Terminate(ctx)36}37import (

checkIfError

Using AI Code Generation

1func main() {2    ctx := context.Background()3    req := testcontainers.ContainerRequest{4        ExposedPorts: []string{"6379/tcp"},5        WaitingFor:   wait.ForListeningPort("6379/tcp"),6    }7    redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8    })9    checkIfError(err)10    defer redisContainer.Terminate(ctx)11    redisHost, err := redisContainer.Host(ctx)12    checkIfError(err)13    redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")14    checkIfError(err)15    fmt.Println(redisURL)16}17func main() {18    ctx := context.Background()19    req := testcontainers.ContainerRequest{20        ExposedPorts: []string{"6379/tcp"},21        WaitingFor:   wait.ForListeningPort("6379/tcp"),22    }23    redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{24    })25    checkIfError(err)26    defer redisContainer.Terminate(ctx)27    redisHost, err := redisContainer.Host(ctx)28    checkIfError(err)29    redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")30    checkIfError(err)31    fmt.Println(redisURL)32}33func main() {34    ctx := context.Background()35    req := testcontainers.ContainerRequest{36        ExposedPorts: []string{"6379/tcp"},37        WaitingFor:   wait.ForListeningPort("6379/tcp"),38    }39    redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{40    })41    checkIfError(err)42    defer redisContainer.Terminate(ctx)43    redisHost, err := redisContainer.Host(ctx)44    checkIfError(err)

checkIfError

Using AI Code Generation

1func TestContainer(t *testing.T) {2  ctx := context.Background()3  req := testcontainers.ContainerRequest{4    ExposedPorts: []string{"6379/tcp"},5    WaitingFor:   wait.ForListeningPort("6379/tcp"),6  }7  redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8  })9  testcontainers.CheckIfError(err)10  defer redisContainer.Terminate(ctx)11  port, err := redisContainer.MappedPort(ctx, "6379")12  testcontainers.CheckIfError(err)13  fmt.Println("Port is: ", port.Port())14}15func TestContainer(t *testing.T) {16  ctx := context.Background()17  req := testcontainers.ContainerRequest{18    ExposedPorts: []string{"6379/tcp"},19    WaitingFor:   wait.ForListeningPort("6379/tcp"),20  }21  redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{22  })23  testcontainers.CheckIfError(err)24  defer redisContainer.Terminate(ctx)25  port, err := redisContainer.MappedPort(ctx, "6379")26  testcontainers.CheckIfError(err)27  fmt.Println("Port is: ", port.Port())28}29func TestContainer(t *testing.T) {30  ctx := context.Background()31  req := testcontainers.ContainerRequest{32    ExposedPorts: []string{"6379/tcp"},33    WaitingFor:   wait.ForListeningPort("6379/tcp"),34  }35  redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{36  })37  testcontainers.CheckIfError(err)38  defer redisContainer.Terminate(ctx)39  port, err := redisContainer.MappedPort(ctx, "6379")40  testcontainers.CheckIfError(err)41  fmt.Println("Port is: ", port.Port())42}43func TestContainer(t *testing.T) {

checkIfError

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        ExposedPorts: []string{"5432/tcp"},6        Env: map[string]string{7        },8        WaitingFor: wait.ForListeningPort("5432/tcp"),9    }10    postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{11    })12    testcontainers.CheckIfError(err)13    defer postgres.Terminate(ctx)14}

checkIfError

Using AI Code Generation

1func checkIfError(err error) {2	if err != nil {3		log.Fatal(err)4	}5}6func main() {7	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)8	defer cancel()9	req := testcontainers.ContainerRequest{10		ExposedPorts: []string{"5432/tcp"},11		WaitingFor:   wait.ForLog("database system is ready to accept connections"),12	}13	postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{14	})15	checkIfError(err)16	ip, err := postgresContainer.Host(ctx)17	checkIfError(err)18	port, err := postgresContainer.MappedPort(ctx, "5432")19	checkIfError(err)20	fmt.Printf("Postgres is available at %s:%s\n", ip, port.Port())21	err = postgresContainer.Terminate(ctx)22	checkIfError(err)23}

checkIfError

Using AI Code Generation

1import (2func main() {3	err := testcontainers.CheckIfError(nil)4	if err != nil {5		log.Fatal("Error is not nil")6	}7	log.Println("Error is nil")8}9import (10func main() {11	err := testcontainers.CheckIfError(errors.New("error"))12	if err != nil {13		log.Fatal("Error is not nil")14	}15	log.Println("Error is nil")16}17import (18func main() {19	err := testcontainers.CheckIfError(errors.New("error"))20	if err == nil {21		log.Fatal("Error is nil")22	}23	log.Println("Error is not nil")24}25import (26func main() {27	err := testcontainers.CheckIfError(nil)28	if err == nil {29		log.Fatal("Error is nil")30	}31	log.Println("Error is not nil")32}33import (34func main() {35	err := testcontainers.CheckIfError(nil)36	if err != nil {37		log.Fatal("Error is not nil")38	}39	log.Println("Error is nil")40}

checkIfError

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        fmt.Printf("Error starting container: %s", err)12    }13    defer redisContainer.Terminate(ctx)14    redisHost, err := redisContainer.Host(ctx)15    if err != nil {16        fmt.Printf("Error getting container host: %s", err)17    }18    redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")19    if err != nil {20        fmt.Printf("Error getting container port: %s", err)21    }22    fmt.Printf("Redis is available on %s:%s", redisHost, redisPort.Port())23}

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.