registry/storage/manifest_test.go
Stephen J Day 6fead90736 Rich error reporting for manifest push
To provide rich error reporting during manifest pushes, the storage layers
verifyManifest stage has been modified to provide the necessary granularity.
Along with this comes with a partial shift to explicit error types, which
represents a small move in larger refactoring of error handling. Signature
methods from libtrust have been added to the various Manifest types to clean up
the verification code.

A primitive deletion implementation for manifests has been added. It only
deletes the manifest file and doesn't attempt to add some of the richer
features request, such as layer cleanup.
2014-11-26 12:57:14 -08:00

144 lines
3.2 KiB
Go

package storage
import (
"reflect"
"testing"
"github.com/docker/libtrust"
"github.com/docker/docker-registry/digest"
"github.com/docker/docker-registry/storagedriver/inmemory"
)
func TestManifestStorage(t *testing.T) {
driver := inmemory.New()
ms := &manifestStore{
driver: driver,
pathMapper: &pathMapper{
root: "/storage/testing",
version: storagePathVersion,
},
layerService: newMockedLayerService(),
}
name := "foo/bar"
tag := "thetag"
exists, err := ms.Exists(name, tag)
if err != nil {
t.Fatalf("unexpected error checking manifest existence: %v", err)
}
if exists {
t.Fatalf("manifest should not exist")
}
if _, err := ms.Get(name, tag); true {
switch err.(type) {
case ErrUnknownManifest:
break
default:
t.Fatalf("expected manifest unknown error: %#v", err)
}
}
manifest := Manifest{
Versioned: Versioned{
SchemaVersion: 1,
},
Name: name,
Tag: tag,
FSLayers: []FSLayer{
{
BlobSum: "asdf",
},
{
BlobSum: "qwer",
},
},
}
pk, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("unexpected error generating private key: %v", err)
}
sm, err := manifest.Sign(pk)
if err != nil {
t.Fatalf("error signing manifest: %v", err)
}
err = ms.Put(name, tag, sm)
if err == nil {
t.Fatalf("expected errors putting manifest")
}
// TODO(stevvooe): We expect errors describing all of the missing layers.
ms.layerService.(*mockedExistenceLayerService).add(name, "asdf")
ms.layerService.(*mockedExistenceLayerService).add(name, "qwer")
if err = ms.Put(name, tag, sm); err != nil {
t.Fatalf("unexpected error putting manifest: %v", err)
}
exists, err = ms.Exists(name, tag)
if err != nil {
t.Fatalf("unexpected error checking manifest existence: %v", err)
}
if !exists {
t.Fatalf("manifest should exist")
}
fetchedManifest, err := ms.Get(name, tag)
if err != nil {
t.Fatalf("unexpected error fetching manifest: %v", err)
}
if !reflect.DeepEqual(fetchedManifest, sm) {
t.Fatalf("fetched manifest not equal: %#v != %#v", fetchedManifest, sm)
}
}
type layerKey struct {
name string
digest digest.Digest
}
type mockedExistenceLayerService struct {
exists map[layerKey]struct{}
}
func newMockedLayerService() *mockedExistenceLayerService {
return &mockedExistenceLayerService{
exists: make(map[layerKey]struct{}),
}
}
var _ LayerService = &mockedExistenceLayerService{}
func (mels *mockedExistenceLayerService) add(name string, digest digest.Digest) {
mels.exists[layerKey{name: name, digest: digest}] = struct{}{}
}
func (mels *mockedExistenceLayerService) remove(name string, digest digest.Digest) {
delete(mels.exists, layerKey{name: name, digest: digest})
}
func (mels *mockedExistenceLayerService) Exists(name string, digest digest.Digest) (bool, error) {
_, ok := mels.exists[layerKey{name: name, digest: digest}]
return ok, nil
}
func (mockedExistenceLayerService) Fetch(name string, digest digest.Digest) (Layer, error) {
panic("not implemented")
}
func (mockedExistenceLayerService) Upload(name string) (LayerUpload, error) {
panic("not implemented")
}
func (mockedExistenceLayerService) Resume(uuid string) (LayerUpload, error) {
panic("not implemented")
}