distribution/docs/storage/driver/s3/s3_test.go

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package s3
import (
"io/ioutil"
"os"
"strconv"
"testing"
"github.com/docker/distribution/context"
storagedriver "github.com/docker/distribution/registry/storage/driver"
"github.com/docker/distribution/registry/storage/driver/testsuites"
"github.com/docker/goamz/aws"
"github.com/docker/goamz/s3"
"gopkg.in/check.v1"
)
// Hook up gocheck into the "go test" runner.
func Test(t *testing.T) { check.TestingT(t) }
var s3DriverConstructor func(rootDirectory string, storageClass s3.StorageClass) (*Driver, error)
var skipS3 func() string
func init() {
accessKey := os.Getenv("AWS_ACCESS_KEY")
secretKey := os.Getenv("AWS_SECRET_KEY")
bucket := os.Getenv("S3_BUCKET")
encrypt := os.Getenv("S3_ENCRYPT")
secure := os.Getenv("S3_SECURE")
v4auth := os.Getenv("S3_USE_V4_AUTH")
region := os.Getenv("AWS_REGION")
root, err := ioutil.TempDir("", "driver-")
if err != nil {
panic(err)
}
defer os.Remove(root)
s3DriverConstructor = func(rootDirectory string, storageClass s3.StorageClass) (*Driver, error) {
encryptBool := false
if encrypt != "" {
encryptBool, err = strconv.ParseBool(encrypt)
if err != nil {
return nil, err
}
}
secureBool := true
if secure != "" {
secureBool, err = strconv.ParseBool(secure)
if err != nil {
return nil, err
}
}
v4AuthBool := false
if v4auth != "" {
v4AuthBool, err = strconv.ParseBool(v4auth)
if err != nil {
return nil, err
}
}
parameters := DriverParameters{
accessKey,
secretKey,
bucket,
aws.GetRegion(region),
encryptBool,
secureBool,
v4AuthBool,
minChunkSize,
rootDirectory,
storageClass,
"",
}
return New(parameters)
}
// Skip S3 storage driver tests if environment variable parameters are not provided
skipS3 = func() string {
if accessKey == "" || secretKey == "" || region == "" || bucket == "" || encrypt == "" {
return "Must set AWS_ACCESS_KEY, AWS_SECRET_KEY, AWS_REGION, S3_BUCKET, and S3_ENCRYPT to run S3 tests"
}
return ""
}
testsuites.RegisterSuite(func() (storagedriver.StorageDriver, error) {
return s3DriverConstructor(root, s3.StandardStorage)
}, skipS3)
}
func TestEmptyRootList(t *testing.T) {
if skipS3() != "" {
t.Skip(skipS3())
}
validRoot, err := ioutil.TempDir("", "driver-")
if err != nil {
t.Fatalf("unexpected error creating temporary directory: %v", err)
}
defer os.Remove(validRoot)
rootedDriver, err := s3DriverConstructor(validRoot, s3.StandardStorage)
if err != nil {
t.Fatalf("unexpected error creating rooted driver: %v", err)
}
emptyRootDriver, err := s3DriverConstructor("", s3.StandardStorage)
if err != nil {
t.Fatalf("unexpected error creating empty root driver: %v", err)
}
slashRootDriver, err := s3DriverConstructor("/", s3.StandardStorage)
if err != nil {
t.Fatalf("unexpected error creating slash root driver: %v", err)
}
filename := "/test"
contents := []byte("contents")
ctx := context.Background()
err = rootedDriver.PutContent(ctx, filename, contents)
if err != nil {
t.Fatalf("unexpected error creating content: %v", err)
}
defer rootedDriver.Delete(ctx, filename)
keys, err := emptyRootDriver.List(ctx, "/")
for _, path := range keys {
if !storagedriver.PathRegexp.MatchString(path) {
t.Fatalf("unexpected string in path: %q != %q", path, storagedriver.PathRegexp)
}
}
keys, err = slashRootDriver.List(ctx, "/")
for _, path := range keys {
if !storagedriver.PathRegexp.MatchString(path) {
t.Fatalf("unexpected string in path: %q != %q", path, storagedriver.PathRegexp)
}
}
}
func TestStorageClass(t *testing.T) {
if skipS3() != "" {
t.Skip(skipS3())
}
rootDir, err := ioutil.TempDir("", "driver-")
if err != nil {
t.Fatalf("unexpected error creating temporary directory: %v", err)
}
defer os.Remove(rootDir)
standardDriver, err := s3DriverConstructor(rootDir, s3.StandardStorage)
if err != nil {
t.Fatalf("unexpected error creating driver with standard storage: %v", err)
}
rrDriver, err := s3DriverConstructor(rootDir, s3.ReducedRedundancy)
if err != nil {
t.Fatalf("unexpected error creating driver with reduced redundancy storage: %v", err)
}
standardFilename := "/test-standard"
rrFilename := "/test-rr"
contents := []byte("contents")
ctx := context.Background()
err = standardDriver.PutContent(ctx, standardFilename, contents)
if err != nil {
t.Fatalf("unexpected error creating content: %v", err)
}
defer standardDriver.Delete(ctx, standardFilename)
err = rrDriver.PutContent(ctx, rrFilename, contents)
if err != nil {
t.Fatalf("unexpected error creating content: %v", err)
}
defer rrDriver.Delete(ctx, rrFilename)
standardDriverUnwrapped := standardDriver.Base.StorageDriver.(*driver)
resp, err := standardDriverUnwrapped.Bucket.GetResponse(standardDriverUnwrapped.s3Path(standardFilename))
if err != nil {
t.Fatalf("unexpected error retrieving standard storage file: %v", err)
}
defer resp.Body.Close()
// Amazon only populates this header value for non-standard storage classes
if storageClass := resp.Header.Get("x-amz-storage-class"); storageClass != "" {
t.Fatalf("unexpected storage class for standard file: %v", storageClass)
}
rrDriverUnwrapped := rrDriver.Base.StorageDriver.(*driver)
resp, err = rrDriverUnwrapped.Bucket.GetResponse(rrDriverUnwrapped.s3Path(rrFilename))
if err != nil {
t.Fatalf("unexpected error retrieving reduced-redundancy storage file: %v", err)
}
defer resp.Body.Close()
if storageClass := resp.Header.Get("x-amz-storage-class"); storageClass != string(s3.ReducedRedundancy) {
t.Fatalf("unexpected storage class for standard file: %v", storageClass)
}
}