forked from TrueCloudLab/distribution
310 lines
8 KiB
Go
310 lines
8 KiB
Go
// +build include_gcs
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package gcs
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import (
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"io/ioutil"
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"os"
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"testing"
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"fmt"
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ctx "github.com/docker/distribution/context"
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storagedriver "github.com/docker/distribution/registry/storage/driver"
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"github.com/docker/distribution/registry/storage/driver/testsuites"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/google"
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"google.golang.org/api/googleapi"
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"google.golang.org/cloud/storage"
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"gopkg.in/check.v1"
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)
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// Hook up gocheck into the "go test" runner.
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func Test(t *testing.T) { check.TestingT(t) }
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var gcsDriverConstructor func(rootDirectory string) (storagedriver.StorageDriver, error)
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var skipGCS func() string
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func init() {
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bucket := os.Getenv("REGISTRY_STORAGE_GCS_BUCKET")
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credentials := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")
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// Skip GCS storage driver tests if environment variable parameters are not provided
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skipGCS = func() string {
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if bucket == "" || credentials == "" {
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return "The following environment variables must be set to enable these tests: REGISTRY_STORAGE_GCS_BUCKET, GOOGLE_APPLICATION_CREDENTIALS"
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}
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return ""
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}
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if skipGCS() != "" {
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return
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}
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root, err := ioutil.TempDir("", "driver-")
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if err != nil {
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panic(err)
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}
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defer os.Remove(root)
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var ts oauth2.TokenSource
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var email string
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var privateKey []byte
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ts, err = google.DefaultTokenSource(ctx.Background(), storage.ScopeFullControl)
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if err != nil {
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// Assume that the file contents are within the environment variable since it exists
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// but does not contain a valid file path
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jwtConfig, err := google.JWTConfigFromJSON([]byte(credentials), storage.ScopeFullControl)
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if err != nil {
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panic(fmt.Sprintf("Error reading JWT config : %s", err))
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}
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email = jwtConfig.Email
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privateKey = []byte(jwtConfig.PrivateKey)
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if len(privateKey) == 0 {
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panic("Error reading JWT config : missing private_key property")
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}
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if email == "" {
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panic("Error reading JWT config : missing client_email property")
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}
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ts = jwtConfig.TokenSource(ctx.Background())
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}
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gcsDriverConstructor = func(rootDirectory string) (storagedriver.StorageDriver, error) {
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parameters := driverParameters{
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bucket: bucket,
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rootDirectory: root,
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email: email,
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privateKey: privateKey,
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client: oauth2.NewClient(ctx.Background(), ts),
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}
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return New(parameters)
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}
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testsuites.RegisterSuite(func() (storagedriver.StorageDriver, error) {
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return gcsDriverConstructor(root)
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}, skipGCS)
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}
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// Test Committing a FileWriter without having called Write
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func TestCommitEmpty(t *testing.T) {
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if skipGCS() != "" {
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t.Skip(skipGCS())
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}
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validRoot, err := ioutil.TempDir("", "driver-")
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if err != nil {
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t.Fatalf("unexpected error creating temporary directory: %v", err)
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}
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defer os.Remove(validRoot)
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driver, err := gcsDriverConstructor(validRoot)
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if err != nil {
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t.Fatalf("unexpected error creating rooted driver: %v", err)
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}
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filename := "/test"
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ctx := ctx.Background()
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writer, err := driver.Writer(ctx, filename, false)
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defer driver.Delete(ctx, filename)
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if err != nil {
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t.Fatalf("driver.Writer: unexpected error: %v", err)
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}
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err = writer.Commit()
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if err != nil {
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t.Fatalf("writer.Commit: unexpected error: %v", err)
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}
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err = writer.Close()
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if err != nil {
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t.Fatalf("writer.Close: unexpected error: %v", err)
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}
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if writer.Size() != 0 {
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t.Fatalf("writer.Size: %d != 0", writer.Size())
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}
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readContents, err := driver.GetContent(ctx, filename)
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if err != nil {
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t.Fatalf("driver.GetContent: unexpected error: %v", err)
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}
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if len(readContents) != 0 {
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t.Fatalf("len(driver.GetContent(..)): %d != 0", len(readContents))
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}
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}
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// Test Committing a FileWriter after having written exactly
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// defaultChunksize bytes.
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func TestCommit(t *testing.T) {
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if skipGCS() != "" {
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t.Skip(skipGCS())
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}
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validRoot, err := ioutil.TempDir("", "driver-")
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if err != nil {
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t.Fatalf("unexpected error creating temporary directory: %v", err)
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}
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defer os.Remove(validRoot)
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driver, err := gcsDriverConstructor(validRoot)
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if err != nil {
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t.Fatalf("unexpected error creating rooted driver: %v", err)
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}
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filename := "/test"
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ctx := ctx.Background()
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contents := make([]byte, defaultChunkSize)
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writer, err := driver.Writer(ctx, filename, false)
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defer driver.Delete(ctx, filename)
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if err != nil {
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t.Fatalf("driver.Writer: unexpected error: %v", err)
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}
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_, err = writer.Write(contents)
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if err != nil {
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t.Fatalf("writer.Write: unexpected error: %v", err)
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}
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err = writer.Commit()
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if err != nil {
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t.Fatalf("writer.Commit: unexpected error: %v", err)
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}
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err = writer.Close()
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if err != nil {
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t.Fatalf("writer.Close: unexpected error: %v", err)
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}
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if writer.Size() != int64(len(contents)) {
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t.Fatalf("writer.Size: %d != %d", writer.Size(), len(contents))
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}
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readContents, err := driver.GetContent(ctx, filename)
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if err != nil {
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t.Fatalf("driver.GetContent: unexpected error: %v", err)
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}
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if len(readContents) != len(contents) {
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t.Fatalf("len(driver.GetContent(..)): %d != %d", len(readContents), len(contents))
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}
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}
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func TestRetry(t *testing.T) {
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if skipGCS() != "" {
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t.Skip(skipGCS())
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}
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assertError := func(expected string, observed error) {
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observedMsg := "<nil>"
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if observed != nil {
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observedMsg = observed.Error()
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}
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if observedMsg != expected {
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t.Fatalf("expected %v, observed %v\n", expected, observedMsg)
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}
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}
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err := retry(func() error {
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return &googleapi.Error{
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Code: 503,
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Message: "google api error",
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}
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})
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assertError("googleapi: Error 503: google api error", err)
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err = retry(func() error {
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return &googleapi.Error{
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Code: 404,
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Message: "google api error",
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}
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})
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assertError("googleapi: Error 404: google api error", err)
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err = retry(func() error {
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return fmt.Errorf("error")
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})
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assertError("error", err)
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}
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func TestEmptyRootList(t *testing.T) {
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if skipGCS() != "" {
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t.Skip(skipGCS())
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}
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validRoot, err := ioutil.TempDir("", "driver-")
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if err != nil {
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t.Fatalf("unexpected error creating temporary directory: %v", err)
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}
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defer os.Remove(validRoot)
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rootedDriver, err := gcsDriverConstructor(validRoot)
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if err != nil {
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t.Fatalf("unexpected error creating rooted driver: %v", err)
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}
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emptyRootDriver, err := gcsDriverConstructor("")
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if err != nil {
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t.Fatalf("unexpected error creating empty root driver: %v", err)
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}
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slashRootDriver, err := gcsDriverConstructor("/")
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if err != nil {
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t.Fatalf("unexpected error creating slash root driver: %v", err)
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}
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filename := "/test"
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contents := []byte("contents")
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ctx := ctx.Background()
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err = rootedDriver.PutContent(ctx, filename, contents)
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if err != nil {
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t.Fatalf("unexpected error creating content: %v", err)
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}
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defer func() {
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err := rootedDriver.Delete(ctx, filename)
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if err != nil {
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t.Fatalf("failed to remove %v due to %v\n", filename, err)
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}
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}()
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keys, err := emptyRootDriver.List(ctx, "/")
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for _, path := range keys {
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if !storagedriver.PathRegexp.MatchString(path) {
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t.Fatalf("unexpected string in path: %q != %q", path, storagedriver.PathRegexp)
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}
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}
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keys, err = slashRootDriver.List(ctx, "/")
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for _, path := range keys {
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if !storagedriver.PathRegexp.MatchString(path) {
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t.Fatalf("unexpected string in path: %q != %q", path, storagedriver.PathRegexp)
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}
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}
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}
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// TestMoveDirectory checks that moving a directory returns an error.
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func TestMoveDirectory(t *testing.T) {
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if skipGCS() != "" {
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t.Skip(skipGCS())
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}
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validRoot, err := ioutil.TempDir("", "driver-")
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if err != nil {
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t.Fatalf("unexpected error creating temporary directory: %v", err)
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}
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defer os.Remove(validRoot)
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driver, err := gcsDriverConstructor(validRoot)
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if err != nil {
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t.Fatalf("unexpected error creating rooted driver: %v", err)
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}
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ctx := ctx.Background()
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contents := []byte("contents")
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// Create a regular file.
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err = driver.PutContent(ctx, "/parent/dir/foo", contents)
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if err != nil {
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t.Fatalf("unexpected error creating content: %v", err)
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}
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defer func() {
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err := driver.Delete(ctx, "/parent")
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if err != nil {
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t.Fatalf("failed to remove /parent due to %v\n", err)
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}
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}()
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err = driver.Move(ctx, "/parent/dir", "/parent/other")
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if err == nil {
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t.Fatalf("Moving directory /parent/dir /parent/other should have return a non-nil error\n")
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}
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}
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