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How to use TestLogger method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.TestLogger

frontend_test.go

Source:frontend_test.go

1package containerutil_test2import (3	"bufio"4	"bytes"5	"context"6	"fmt"7	"os"8	"os/exec"9	"strings"10	"sync"11	"testing"12	"time"13	"github.com/earthly/earthly/conslogging"14	"github.com/earthly/earthly/util/containerutil"15	"github.com/hashicorp/go-multierror"16	"github.com/pkg/errors"17	"github.com/stretchr/testify/assert"18)19func TestFrontendNew(t *testing.T) {20	testCases := []struct {21		binary  string22		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)23	}{24		{"docker", containerutil.NewDockerShellFrontend},25		{"podman", containerutil.NewPodmanShellFrontend},26	}27	for _, tC := range testCases {28		t.Run(tC.binary, func(t *testing.T) {29			ctx := context.Background()30			onlyIfBinaryIsInstalled(ctx, t, tC.binary)31			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})32			assert.NoError(t, err)33			assert.NotNil(t, fe)34		})35	}36}37func TestFrontendScheme(t *testing.T) {38	testCases := []struct {39		binary  string40		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)41		scheme  string42	}{43		{"docker", containerutil.NewDockerShellFrontend, "docker-container"},44		{"podman", containerutil.NewPodmanShellFrontend, "podman-container"},45	}46	for _, tC := range testCases {47		t.Run(tC.binary, func(t *testing.T) {48			ctx := context.Background()49			onlyIfBinaryIsInstalled(ctx, t, tC.binary)50			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})51			assert.NoError(t, err)52			scheme := fe.Scheme()53			assert.Equal(t, tC.scheme, scheme)54		})55	}56}57func TestFrontendIsAvailable(t *testing.T) {58	testCases := []struct {59		binary  string60		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)61	}{62		{"docker", containerutil.NewDockerShellFrontend},63		{"podman", containerutil.NewPodmanShellFrontend},64	}65	for _, tC := range testCases {66		t.Run(tC.binary, func(t *testing.T) {67			ctx := context.Background()68			onlyIfBinaryIsInstalled(ctx, t, tC.binary)69			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})70			assert.NoError(t, err)71			avaliable := fe.IsAvailable(ctx)72			assert.True(t, avaliable)73		})74	}75}76func TestFrontendInformation(t *testing.T) {77	testCases := []struct {78		binary  string79		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)80	}{81		{"docker", containerutil.NewDockerShellFrontend},82		{"podman", containerutil.NewPodmanShellFrontend},83	}84	for _, tC := range testCases {85		t.Run(tC.binary, func(t *testing.T) {86			ctx := context.Background()87			onlyIfBinaryIsInstalled(ctx, t, tC.binary)88			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})89			assert.NoError(t, err)90			info, err := fe.Information(ctx)91			assert.NoError(t, err)92			assert.NotNil(t, info)93		})94	}95}96func TestFrontendContainerInfo(t *testing.T) {97	testCases := []struct {98		binary  string99		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)100	}{101		{"docker", containerutil.NewDockerShellFrontend},102		{"podman", containerutil.NewPodmanShellFrontend},103	}104	for _, tC := range testCases {105		t.Run(tC.binary, func(t *testing.T) {106			ctx := context.Background()107			onlyIfBinaryIsInstalled(ctx, t, tC.binary)108			testContainers := []string{"test-1", "test-2"}109			cleanup, err := spawnTestContainers(ctx, tC.binary, testContainers...)110			t.Cleanup(cleanup)111			assert.NoError(t, err)112			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})113			assert.NoError(t, err)114			getInfos := append(testContainers, "missing")115			info, err := fe.ContainerInfo(ctx, getInfos...)116			assert.NoError(t, err)117			assert.NotNil(t, info)118			assert.Len(t, info, 3)119			assert.Equal(t, getInfos[0], info[getInfos[0]].Name)120			assert.Equal(t, "docker.io/library/nginx:1.21", info[getInfos[0]].Image)121			assert.Equal(t, getInfos[1], info[getInfos[1]].Name)122			assert.Equal(t, "docker.io/library/nginx:1.21", info[getInfos[1]].Image)123			assert.Equal(t, getInfos[2], info[getInfos[2]].Name)124			assert.Equal(t, containerutil.StatusMissing, info[getInfos[2]].Status)125		})126	}127}128func TestFrontendContainerRemove(t *testing.T) {129	testCases := []struct {130		binary  string131		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)132	}{133		{"docker", containerutil.NewDockerShellFrontend},134		{"podman", containerutil.NewPodmanShellFrontend},135	}136	for _, tC := range testCases {137		t.Run(tC.binary, func(t *testing.T) {138			ctx := context.Background()139			onlyIfBinaryIsInstalled(ctx, t, tC.binary)140			testContainers := []string{"remove-1", "remove-2"}141			cleanup, err := spawnTestContainers(ctx, tC.binary, testContainers...)142			t.Cleanup(cleanup)143			assert.NoError(t, err)144			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})145			assert.NoError(t, err)146			info, err := fe.ContainerInfo(ctx, testContainers...)147			assert.NoError(t, err)148			assert.Len(t, info, 2)149			err = fe.ContainerRemove(ctx, true, testContainers...)150			assert.NoError(t, err)151			info, err = fe.ContainerInfo(ctx, testContainers...)152			assert.NoError(t, err)153			assert.Equal(t, containerutil.StatusMissing, info[testContainers[0]].Status)154			assert.Equal(t, containerutil.StatusMissing, info[testContainers[1]].Status)155		})156	}157}158func TestFrontendContainerStop(t *testing.T) {159	testCases := []struct {160		binary  string161		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)162	}{163		{"docker", containerutil.NewDockerShellFrontend},164		{"podman", containerutil.NewPodmanShellFrontend},165	}166	for _, tC := range testCases {167		t.Run(tC.binary, func(t *testing.T) {168			ctx := context.Background()169			onlyIfBinaryIsInstalled(ctx, t, tC.binary)170			testContainers := []string{"stop-1", "stop-2"}171			cleanup, err := spawnTestContainers(ctx, tC.binary, testContainers...)172			t.Cleanup(cleanup)173			assert.NoError(t, err)174			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})175			assert.NoError(t, err)176			info, err := fe.ContainerInfo(ctx, testContainers...)177			assert.NoError(t, err)178			assert.Len(t, info, 2)179			err = fe.ContainerStop(ctx, 0, testContainers...)180			assert.NoError(t, err)181			_, err = fe.ContainerInfo(ctx, testContainers...)182			assert.NoError(t, err)183			assert.Len(t, info, 2)184		})185	}186}187func TestFrontendContainerLogs(t *testing.T) {188	testCases := []struct {189		binary  string190		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)191	}{192		{"docker", containerutil.NewDockerShellFrontend},193		{"podman", containerutil.NewPodmanShellFrontend},194	}195	for _, tC := range testCases {196		t.Run(tC.binary, func(t *testing.T) {197			ctx := context.Background()198			onlyIfBinaryIsInstalled(ctx, t, tC.binary)199			testContainers := []string{"logs-1", "logs-2"}200			cleanup, err := spawnTestContainers(ctx, tC.binary, testContainers...)201			t.Cleanup(cleanup)202			assert.NoError(t, err)203			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})204			assert.NoError(t, err)205			logs, err := fe.ContainerLogs(ctx, testContainers...)206			assert.NoError(t, err)207			assert.Len(t, logs, 2)208			assert.Equal(t, "output stream\n", logs[testContainers[0]].Stdout)209			assert.Equal(t, "error stream\n", logs[testContainers[0]].Stderr)210			assert.Equal(t, "output stream\n", logs[testContainers[1]].Stdout)211			assert.Equal(t, "error stream\n", logs[testContainers[1]].Stderr)212		})213	}214}215func TestFrontendContainerRun(t *testing.T) {216	testCases := []struct {217		binary  string218		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)219	}{220		{"docker", containerutil.NewDockerShellFrontend},221		{"podman", containerutil.NewPodmanShellFrontend},222	}223	for _, tC := range testCases {224		t.Run(tC.binary, func(t *testing.T) {225			ctx := context.Background()226			onlyIfBinaryIsInstalled(ctx, t, tC.binary)227			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})228			assert.NoError(t, err)229			testContainers := []string{"create-1", "create-2"}230			runs := []containerutil.ContainerRun{}231			for _, name := range testContainers {232				runs = append(runs, containerutil.ContainerRun{233					NameOrID:       name,234					ImageRef:       "docker.io/nginx:1.21",235					Privileged:     false,236					Envs:           containerutil.EnvMap{"test": name},237					Labels:         containerutil.LabelMap{"test": name},238					ContainerArgs:  []string{"nginx-debug", "-g", "daemon off;"},239					AdditionalArgs: []string{"--rm"},240					Mounts: containerutil.MountOpt{241						containerutil.Mount{242							Type:     containerutil.MountVolume,243							Source:   fmt.Sprintf("vol-%s", name),244							Dest:     "/test",245							ReadOnly: true,246						},247					},248					Ports: containerutil.PortOpt{249						containerutil.Port{250							IP:            "127.0.0.1",251							HostPort:      0,252							ContainerPort: 5678,253							Protocol:      containerutil.ProtocolTCP,254						},255					},256				})257			}258			defer func() {259				for _, name := range testContainers {260					// Roll our own cleanup since we can't use the spawn test containers helper... since261					// the whole point of this test is to create them with a frontend. Also theres a volume262					cmd := exec.CommandContext(ctx, tC.binary, "rm", "-f", name)263					_ = cmd.Run() // Just best effort264					cmd = exec.CommandContext(ctx, tC.binary, "volume", "rm", "-f", fmt.Sprintf("vol-%s", name))265					_ = cmd.Run()266				}267			}()268			info, err := fe.ContainerInfo(ctx, testContainers...)269			assert.NoError(t, err)270			assert.Equal(t, containerutil.StatusMissing, info[testContainers[0]].Status)271			assert.Equal(t, containerutil.StatusMissing, info[testContainers[1]].Status)272			err = fe.ContainerRun(ctx, runs...)273			assert.NoError(t, err)274			info, err = fe.ContainerInfo(ctx, testContainers...)275			assert.NoError(t, err)276			assert.Equal(t, containerutil.StatusRunning, info[testContainers[0]].Status)277			assert.Equal(t, containerutil.StatusRunning, info[testContainers[1]].Status)278		})279	}280}281func TestFrontendImagePull(t *testing.T) {282	testCases := []struct {283		binary  string284		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)285		refList []string286	}{287		{"docker", containerutil.NewDockerShellFrontend, []string{"nginx:1.21", "alpine:3.15"}},288		{"podman", containerutil.NewPodmanShellFrontend, []string{"docker.io/nginx:1.21", "docker.io/alpine:3.15"}}, // Podman prefers... and exports fully-qualified image tags289	}290	for _, tC := range testCases {291		t.Run(tC.binary, func(t *testing.T) {292			ctx := context.Background()293			onlyIfBinaryIsInstalled(ctx, t, tC.binary)294			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{295				LocalRegistryHostFileValue: "tcp://some-host:5309", // podman pull needs some potentially valid address to check against, otherwise panic296				Console:                    testLogger(),297			})298			assert.NoError(t, err)299			err = fe.ImagePull(ctx, tC.refList...)300			assert.NoError(t, err)301			defer func() {302				for _, ref := range tC.refList {303					cmd := exec.CommandContext(ctx, "docker", "image", "rm", "-f", ref)304					_ = cmd.Run()305				}306			}()307		})308	}309}310func TestFrontendImageInfo(t *testing.T) {311	testCases := []struct {312		binary  string313		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)314		refList []string315	}{316		{"docker", containerutil.NewDockerShellFrontend, []string{"info:1", "info:2"}},317		{"podman", containerutil.NewPodmanShellFrontend, []string{"localhost/info:1", "localhost/info:2"}},318	}319	for _, tC := range testCases {320		t.Run(tC.binary, func(t *testing.T) {321			ctx := context.Background()322			onlyIfBinaryIsInstalled(ctx, t, tC.binary)323			cleanup, err := spawnTestImages(ctx, tC.binary, tC.refList...)324			assert.NoError(t, err)325			t.Cleanup(cleanup)326			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})327			assert.NoError(t, err)328			info, err := fe.ImageInfo(ctx, tC.refList...)329			assert.NoError(t, err)330			assert.Len(t, info, 2)331			assert.Contains(t, info[tC.refList[0]].Tags, tC.refList[0])332			assert.Contains(t, info[tC.refList[1]].Tags, tC.refList[1])333		})334	}335}336func TestFrontendImageRemove(t *testing.T) {337	testCases := []struct {338		binary  string339		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)340	}{341		{"docker", containerutil.NewDockerShellFrontend},342		{"podman", containerutil.NewPodmanShellFrontend},343	}344	for _, tC := range testCases {345		t.Run(tC.binary, func(t *testing.T) {346			ctx := context.Background()347			onlyIfBinaryIsInstalled(ctx, t, tC.binary)348			refList := []string{"remove:1", "remove:2"}349			cleanup, err := spawnTestImages(ctx, tC.binary, refList...)350			assert.NoError(t, err)351			t.Cleanup(cleanup)352			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})353			assert.NoError(t, err)354			info, err := fe.ImageInfo(ctx, refList...)355			assert.NoError(t, err)356			assert.Len(t, info, 2)357			err = fe.ImageRemove(ctx, true, refList...)358			assert.NoError(t, err)359			info, err = fe.ImageInfo(ctx, refList...)360			assert.NoError(t, err)361			assert.Empty(t, info[refList[0]].ID)362			assert.Empty(t, info[refList[1]].ID)363		})364	}365}366func TestFrontendImageTag(t *testing.T) {367	testCases := []struct {368		binary  string369		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)370		tagList []string371	}{372		{"docker", containerutil.NewDockerShellFrontend, []string{"tag:1", "tag:2"}},373		{"podman", containerutil.NewPodmanShellFrontend, []string{"localhost/tag:1", "localhost/tag:2"}},374	}375	for _, tC := range testCases {376		t.Run(tC.binary, func(t *testing.T) {377			ctx := context.Background()378			onlyIfBinaryIsInstalled(ctx, t, tC.binary)379			ref := "tag:me"380			cleanup, err := spawnTestImages(ctx, tC.binary, ref)381			assert.NoError(t, err)382			t.Cleanup(cleanup)383			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})384			assert.NoError(t, err)385			info, err := fe.ImageInfo(ctx, ref)386			assert.NoError(t, err)387			imageID := info[ref].ID388			tags := []containerutil.ImageTag{}389			for _, tagName := range tC.tagList {390				tags = append(tags, containerutil.ImageTag{391					SourceRef: imageID,392					TargetRef: tagName,393				})394			}395			err = fe.ImageTag(ctx, tags...)396			assert.NoError(t, err)397			info, err = fe.ImageInfo(ctx, tC.tagList...)398			assert.NoError(t, err)399			assert.Contains(t, info[tC.tagList[0]].Tags, tC.tagList[0])400			assert.Contains(t, info[tC.tagList[1]].Tags, tC.tagList[1])401		})402	}403}404func TestFrontendImageLoad(t *testing.T) {405	testCases := []struct {406		binary  string407		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)408		ref     string409	}{410		{"docker", containerutil.NewDockerShellFrontend, "load:me"},411		{"podman", containerutil.NewPodmanShellFrontend, "localhost/load:me"},412	}413	for _, tC := range testCases {414		t.Run(tC.binary, func(t *testing.T) {415			ctx := context.Background()416			onlyIfBinaryIsInstalled(ctx, t, tC.binary)417			cleanup, err := spawnTestImages(ctx, tC.binary, tC.ref)418			assert.NoError(t, err)419			imgBuffer := &bytes.Buffer{}420			cmd := exec.CommandContext(ctx, tC.binary, "image", "save", tC.ref)421			cmd.Stdout = bufio.NewWriter(imgBuffer)422			err = cmd.Run()423			assert.NoError(t, err)424			cleanup()425			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})426			assert.NoError(t, err)427			err = fe.ImageLoad(ctx, bufio.NewReader(imgBuffer))428			assert.NoError(t, err)429			defer func() {430				cmd := exec.CommandContext(ctx, tC.binary, "image", "rm", "-f", tC.ref)431				_ = cmd.Run()432			}()433			info, err := fe.ImageInfo(ctx, tC.ref)434			assert.NoError(t, err)435			assert.Contains(t, info[tC.ref].Tags, tC.ref)436		})437	}438}439func TestFrontendImageLoadHybrid(t *testing.T) {440	testCases := []struct {441		binary  string442		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)443		ref     string444	}{445		{"docker", containerutil.NewDockerShellFrontend, "hybrid:test"},446		{"podman", containerutil.NewPodmanShellFrontend, "localhost/hybrid:test"},447	}448	for _, tC := range testCases {449		t.Run(tC.binary, func(t *testing.T) {450			ctx := context.Background()451			onlyIfBinaryIsInstalled(ctx, t, tC.binary)452			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})453			assert.NoError(t, err)454			data, err := os.ReadFile("./testdata/hybrid.tar")455			assert.NoError(t, err)456			reader := bytes.NewReader(data)457			err = fe.ImageLoad(ctx, reader)458			assert.NoError(t, err)459			defer func() {460				cmd := exec.CommandContext(ctx, tC.binary, "image", "rm", "-f", tC.ref)461				_ = cmd.Run()462			}()463			info, err := fe.ImageInfo(ctx, tC.ref)464			assert.NoError(t, err)465			assert.Contains(t, info[tC.ref].Tags, tC.ref)466		})467	}468}469func TestFrontendVolumeInfo(t *testing.T) {470	testCases := []struct {471		binary  string472		newFunc func(context.Context, *containerutil.FrontendConfig) (containerutil.ContainerFrontend, error)473	}{474		{"docker", containerutil.NewDockerShellFrontend},475		{"podman", containerutil.NewPodmanShellFrontend},476	}477	for _, tC := range testCases {478		t.Run(tC.binary, func(t *testing.T) {479			ctx := context.Background()480			onlyIfBinaryIsInstalled(ctx, t, tC.binary)481			volList := []string{"test1", "test2"}482			cleanup, err := spawnTestVolumes(ctx, tC.binary, volList...)483			assert.NoError(t, err)484			t.Cleanup(cleanup)485			fe, err := tC.newFunc(ctx, &containerutil.FrontendConfig{Console: testLogger()})486			assert.NoError(t, err)487			info, err := fe.VolumeInfo(ctx, volList...)488			assert.NoError(t, err)489			assert.Len(t, info, 2)490		})491	}492}493func onlyIfBinaryIsInstalled(ctx context.Context, t *testing.T, binary string) {494	if !isBinaryInstalled(ctx, binary) {495		t.Skipf("%s is not avaliable for tests, skipping", binary)496	}497}498func isBinaryInstalled(ctx context.Context, binary string) bool {499	// This is almost a re-implementation of IsAvailable... but relying on that presupposes the500	// binary exists to allow the New**** to run (it gathers info from the CLI).501	cmd := exec.CommandContext(ctx, binary, "--help")502	return cmd.Run() == nil503}504// First, we attempt to stop the containers that may be running.505// Next, we start the containers506// After that, we attempt to wait for the containers for up to 20 seconds507// Then we return508// Caller is always expected to call cleanup509func spawnTestContainers(ctx context.Context, feBinary string, names ...string) (func(), error) {510	_ = removeContainers(ctx, feBinary, names...) // best effort511	err := startTestContainers(ctx, feBinary, names...)512	cleanup := func() {513		_ = removeContainers(ctx, feBinary, names...) // best-effort514	}515	if err != nil {516		return cleanup, err517	}518	err = waitForContainers(ctx, feBinary, names...)519	return cleanup, err520}521func startTestContainers(ctx context.Context, feBinary string, names ...string) error {522	var err error523	m := sync.Mutex{}524	wg := sync.WaitGroup{}525	image := "docker.io/library/nginx:1.21"526	pullErr := pullImageIfNecessary(ctx, feBinary, image)527	if pullErr != nil {528		return fmt.Errorf("failed to pull image %s: %w", image, pullErr)529	}530	for _, name := range names {531		wg.Add(1)532		go func(name string) {533			defer wg.Done()534			cmd := exec.CommandContext(ctx, feBinary, "run", "-d", "--rm", "--name", name, image, "sh", "-c", `echo output stream&&>&2 echo error stream&&sleep 100`)535			output, createErr := cmd.CombinedOutput()536			m.Lock()537			defer m.Unlock()538			if createErr != nil {539				// the frontend exists but is non-functional. This is... not likely to work at all.540				err = multierror.Append(err, errors.Wrap(createErr, string(output)))541			}542		}(name)543	}544	wg.Wait()545	return err546}547// pullImageIfNecessary will only pull the image if it does not exist locally548// This helps us avoid unauthenticated rate limits in tests549func pullImageIfNecessary(ctx context.Context, feBinary string, image string) error {550	cmd := exec.CommandContext(ctx, feBinary, "inspect", "--type=image", image)551	_, inspectErr := cmd.CombinedOutput()552	if inspectErr == nil {553		// If we are able to inspect the image then it must exist locally554		return nil555	}556	cmd = exec.CommandContext(ctx, feBinary, "pull", image)557	_, pullErr := cmd.CombinedOutput()558	if pullErr != nil {559		return fmt.Errorf("failed to pull image %s: %w", image, pullErr)560	}561	return nil562}563func removeContainers(ctx context.Context, feBinary string, names ...string) error {564	var err error565	m := sync.Mutex{}566	wg := sync.WaitGroup{}567	for _, name := range names {568		wg.Add(1)569		go func(name string) {570			defer wg.Done()571			removeCmd := exec.CommandContext(ctx, feBinary, "rm", "-f", name)572			_, removeErr := removeCmd.CombinedOutput()573			m.Lock()574			defer m.Unlock()575			if removeErr != nil {576				err = multierror.Append(err, fmt.Errorf("failed to remove container %s", name))577			}578		}(name)579	}580	wg.Wait()581	return err582}583func waitForContainers(ctx context.Context, feBinary string, names ...string) error {584	var err error585	m := sync.Mutex{}586	wg := sync.WaitGroup{}587	for _, name := range names {588		const maxAttempts = 100589		wg.Add(1)590		go func(name string) {591			defer wg.Done()592			attempts := 0593			for attempts < maxAttempts {594				attempts++595				// docker inspect -f {{.State.Running}} CONTAINERNAME`"=="true"596				cmd := exec.CommandContext(ctx, feBinary, "inspect", "-f", "{{.State.Running}}", name)597				output, inspectErr := cmd.CombinedOutput()598				if inspectErr != nil {599					m.Lock()600					err = multierror.Append(err, inspectErr)601					m.Unlock()602					return603				}604				if strings.Contains(string(output), "true") {605					return606				}607				time.Sleep(time.Millisecond * 200)608			}609			m.Lock()610			defer m.Unlock()611			err = multierror.Append(err, fmt.Errorf("failed to wait for container %s to start", name))612		}(name)613	}614	wg.Wait()615	return err616}617func spawnTestImages(ctx context.Context, feBinary string, refs ...string) (func(), error) {618	var err error619	for _, ref := range refs {620		cmd := exec.CommandContext(ctx, feBinary, "image", "pull", "docker.io/nginx:1.21")621		output, createErr := cmd.CombinedOutput()622		if createErr != nil {623			// the frontend exists but is non-functional. This is... not likely to work at all.624			err = multierror.Append(err, errors.Wrap(createErr, string(output)))625			break626		}627		cmd = exec.CommandContext(ctx, feBinary, "image", "tag", "docker.io/nginx:1.21", ref)628		output, tagErr := cmd.CombinedOutput()629		if tagErr != nil {630			// the frontend exists but is non-functional. This is... not likely to work at all.631			err = multierror.Append(err, errors.Wrap(tagErr, string(output)))632			break633		}634	}635	return func() {636		for _, ref := range refs {637			cmd := exec.CommandContext(ctx, feBinary, "image", "rm", "-f", ref)638			_ = cmd.Run() // Just best effort639		}640	}, err641}642func spawnTestVolumes(ctx context.Context, feBinary string, names ...string) (func(), error) {643	var err error644	for _, name := range names {645		cmd := exec.CommandContext(ctx, feBinary, "volume", "create", name)646		output, createErr := cmd.CombinedOutput()647		if createErr != nil {648			// the frontend exists but is non-functional. This is... not likely to work at all.649			err = multierror.Append(err, errors.Wrap(createErr, string(output)))650		}651	}652	return func() {653		for _, name := range names {654			cmd := exec.CommandContext(ctx, feBinary, "volume", "rm", "-f", name)655			_ = cmd.Run() // Just best effort656		}657	}, nil658}659func testLogger() conslogging.ConsoleLogger {660	var logs strings.Builder661	logger := conslogging.Current(conslogging.NoColor, conslogging.DefaultPadding, conslogging.Info)662	return logger.WithWriter(&logs)663}...

logger.go

Source:logger.go

...9// Logging defines the Logger interface10type Logging interface {11	Printf(format string, v ...interface{})12}13// TestLogger returns a Logging implementation for testing.TB14// This way logs from testcontainers are part of the test output of a test suite or test case15func TestLogger(tb testing.TB) Logging {16	tb.Helper()17	return testLogger{TB: tb}18}19// WithLogger is a generic option that implements GenericProviderOption, DockerProviderOption and LocalDockerComposeOption20// It replaces the global Logging implementation with a user defined one e.g. to aggregate logs from testcontainers21// with the logs of specific test case22func WithLogger(logger Logging) LoggerOption {23	return LoggerOption{24		logger: logger,25	}26}27type LoggerOption struct {28	logger Logging29}...

TestLogger

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"echo", "hello world"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   wait.ForLog("hello world"),8	}9	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	logs, err := c.Logs(ctx)15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(logs)19	if err := c.Terminate(ctx); err != nil {20		log.Fatal(err)21	}22	time.Sleep(5 * time.Second)23}24import (25func main() {26	ctx := context.Background()27	req := testcontainers.ContainerRequest{28		Cmd:          []string{"echo", "hello world"},29		ExposedPorts: []string{"80/tcp"},30		WaitingFor:   wait.ForLog("hello world"),31	}32	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{33	})34	if err != nil {35		log.Fatal(err)36	}37	if err := testcontainers.TestLogs(ctx, c, "hello world"); err != nil {38		log.Fatal(err)

TestLogger

Using AI Code Generation

1import (2func TestLogger(t *testing.T) {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"echo", "hello world"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   wait.ForLog("hello world"),8	}9	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatalf("Could not start container: %v", err)13	}14	ip, err := c.Host(ctx)15	if err != nil {16		log.Fatalf("Could not get container IP: %v", err)17	}18	port, err := c.MappedPort(ctx, "80")19	if err != nil {20		log.Fatalf("Could not get mapped port: %v", err)21	}22	fmt.Printf("Container IP: %s, Port: %s", ip, port.Port())23	if err := c.Terminate(ctx); err != nil {24		log.Fatalf("Could not stop container: %v", err)25	}26}27import (28func TestLogger(t *testing.T) {29	ctx := context.Background()30	req := testcontainers.ContainerRequest{31		Cmd:          []string{"echo", "hello world"},32		ExposedPorts: []string{"80/tcp"},33		WaitingFor:   wait.ForLog("hello world"),34	}35	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{36	})37	if err != nil {38		log.Fatalf("Could not start container: %v", err)39	}

TestLogger

Using AI Code Generation

1import (2func TestLogger(t *testing.T) {3	req := testcontainers.ContainerRequest{4		ExposedPorts: []string{"80/tcp"},5		WaitingFor:   wait.ForLog("ready"),6	}7	ctx := context.Background()8	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		t.Fatal(err)12	}13	defer c.Terminate(ctx)14	ip, err := c.Host(ctx)15	if err != nil {16		t.Fatal(err)17	}18	port, err := c.MappedPort(ctx, "80")19	if err != nil {20		t.Fatal(err)21	}22	if err != nil {23		t.Fatal(err)24	}25}26import (27func TestLogger(t *testing.T) {28	req := testcontainers.ContainerRequest{29		ExposedPorts: []string{"80/tcp"},30		WaitingFor:   wait.ForLog("ready"),31	}32	ctx := context.Background()33	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{34	})35	if err != nil {36		t.Fatal(err)37	}38	defer c.Terminate(ctx)39	ip, err := c.Host(ctx)40	if err != nil {41		t.Fatal(err)42	}43	port, err := c.MappedPort(ctx, "80")44	if err != nil {45		t.Fatal(err)46	}

TestLogger

Using AI Code Generation

1import (2func TestLogger(t *testing.T) {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        Cmd:          []string{"echo", "hello world"},6    }7    resp, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8    })9    if err != nil {10        log.Fatalf("Could not start container: %v", err)11    }12    defer resp.Terminate(ctx)13    logFile, err := os.Create("test.log")14    if err != nil {15        log.Fatalf("Could not create log file: %v", err)16    }17    defer logFile.Close()18    log.SetOutput(logFile)19    resp.FollowOutput(ctx, testcontainers.NewLogConsumer(t))20}21import (22func main() {23    ctx := context.Background()24    cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())25    if err != nil {26        log.Fatalf("Could not connect to Docker: %v", err)27    }28    logFile, err := os.Create("test.log")29    if err != nil {30        log.Fatalf("Could not create log file: %v", err)31    }32    defer logFile.Close()33    log.SetOutput(logFile)34    out, err := cli.ContainerLogs(ctx, "b1c4b4f0dc1b", types.ContainerLogsOptions{35    })36    if err != nil {37        log.Fatalf("Could not get logs from container: %v

TestLogger

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	}8	container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer container.Terminate(ctx)14	mappedPort, err := container.MappedPort(ctx, "27017")15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(mappedPort.Int())19}20import (21func main() {22	ctx := context.Background()23	req := testcontainers.ContainerRequest{24		ExposedPorts: []string{"27017/tcp"},25		WaitingFor:   wait.ForLog("waiting for connections on port"),26	}27	container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28	})29	if err != nil {30		log.Fatal(err)31	}32	defer container.Terminate(ctx)33	mappedPort, err := container.MappedPort(ctx, "27017")34	if err != nil {35		log.Fatal(err)36	}37	fmt.Println(mappedPort.Int())38}39import (40func main() {41	ctx := context.Background()42	req := testcontainers.ContainerRequest{43		ExposedPorts: []string{"27017/tcp"},44		WaitingFor:   wait.ForLog("waiting for

TestLogger

Using AI Code Generation

1func TestLogger(t *testing.T) {2    ctx := context.Background()3    req := testcontainers.ContainerRequest{4        Cmd:          []string{"echo", "hello world"},5    }6    resp, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{7    })8    if err != nil {9        t.Fatal(err)10    }11    defer resp.Terminate(ctx)12    logs, err := resp.Logs(ctx)13    if err != nil {14        t.Fatal(err)15    }16    fmt.Println(logs)17}18func TestLogger(t *testing.T) {19    ctx := context.Background()20    req := testcontainers.ContainerRequest{21        Cmd:          []string{"echo", "hello world"},22    }23    resp, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{24    })25    if err != nil {26        t.Fatal(err)27    }28    defer resp.Terminate(ctx)29    logs, err := resp.Logs(ctx)30    if err != nil {31        t.Fatal(err)32    }33    fmt.Println(logs)34}35func TestLogger(t *testing.T) {36    ctx := context.Background()37    req := testcontainers.ContainerRequest{38        Cmd:          []string{"echo", "hello world"},39    }40    resp, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{41    })42    if err != nil {43        t.Fatal(err)44    }45    defer resp.Terminate(ctx)46    logs, err := resp.Logs(ctx)47    if err != nil {48        t.Fatal(err)49    }50    fmt.Println(logs)51}

TestLogger

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        ExposedPorts: []string{"8080/tcp"},6        WaitingFor:   wait.ForHTTP("/ping").WithStartupTimeout(3 * time.Second),7    }8    ryukContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9    })10    if err != nil {11        log.Fatal(err)12    }13    defer ryukContainer.Terminate(ctx)14    ip, err := ryukContainer.Host(ctx)15    if err != nil {16        log.Fatal(err)17    }18    port, err := ryukContainer.MappedPort(ctx, "8080/tcp")19    if err != nil {20        log.Fatal(err)21    }22    fmt.Println("Ryuk is listening on", ip+":"+port.Port())23}24import (25func main() {26    ctx := context.Background()27    req := testcontainers.ContainerRequest{28        ExposedPorts: []string{"8080/tcp"},29        WaitingFor:   wait.ForHTTP("/ping").WithStartupTimeout(3 * time.Second),30    }31    ryukContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{32    })33    if err != nil {34        log.Fatal(err)35    }36    defer ryukContainer.Terminate(ctx)37    ip, err := ryukContainer.Host(ctx)38    if err != nil {39        log.Fatal(err)40    }41    port, err := ryukContainer.MappedPort(ctx, "8080/tcp")

TestLogger

Using AI Code Generation

1import (2func main() {3	logger := log.New(os.Stdout, "testcontainers", log.LstdFlags)4	if err != nil {5		logger.Fatal(err)6	}7	ctx := context.Background()8	req := testcontainers.ContainerRequest{9		Cmd:          []string{"echo", "hello world"},10		ExposedPorts: []string{"80/tcp"},11		WaitingFor:   wait.ForLog("hello world"),12	}13	c, err := client.CreateContainer(ctx, req)14	if err != nil {15		logger.Fatal(err)16	}17	defer c.Terminate(ctx)18	err = c.Start(ctx)19	if err != nil {20		logger.Fatal(err)21	}22	ip, err := c.Host(ctx)23	if err != nil {24		logger.Fatal(err)25	}26	port, err := c.MappedPort(ctx, "80")27	if err != nil {28		logger.Fatal(err)29	}30	fmt.Printf("Container %s is listening on port %s", ip, port.Port())31}32import (33func main() {34	logger := log.New(os.Stdout, "testcontainers", log.LstdFlags)35	if err != nil {36		logger.Fatal(err)37	}38	ctx := context.Background()39	req := testcontainers.ContainerRequest{40		Cmd:          []string{"echo", "hello world"},41		ExposedPorts: []string{"80/tcp"},42		WaitingFor:   wait.ForLog("

TestLogger

Using AI Code Generation

1log := testcontainers.NewLogConsumer(t)2ctx := context.Background()3req := testcontainers.ContainerRequest{4ExposedPorts: []string{"6379/tcp"},5WaitingFor:   wait.ForLog("Ready to accept connections"),6}7redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8})9require.NoError(t, err)10redisContainer.Start(ctx)11redisContainer.Terminate(ctx)12log := testcontainers.NewLogConsumer(t)13ctx := context.Background()14req := testcontainers.ContainerRequest{15ExposedPorts: []string{"6379/tcp"},16WaitingFor:   wait.ForLog("Ready to accept connections"),17}18redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{19})20require.NoError(t, err)21redisContainer.Start(ctx)22redisContainer.Terminate(ctx)23log := testcontainers.NewLogConsumer(t)24ctx := context.Background()25req := testcontainers.ContainerRequest{26ExposedPorts: []string{"6379/tcp

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.