2015-07-29 20:12:01 +02:00
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package proxy
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import (
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2015-09-19 01:11:35 +02:00
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"io/ioutil"
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"math/rand"
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2015-07-29 20:12:01 +02:00
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"net/http"
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"net/http/httptest"
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2015-09-19 01:11:35 +02:00
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"sync"
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2015-07-29 20:12:01 +02:00
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"testing"
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2015-09-19 01:11:35 +02:00
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"time"
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2015-07-29 20:12:01 +02:00
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"github.com/docker/distribution"
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"github.com/docker/distribution/context"
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2015-12-15 23:35:23 +01:00
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"github.com/docker/distribution/reference"
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2015-07-29 20:12:01 +02:00
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"github.com/docker/distribution/registry/proxy/scheduler"
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"github.com/docker/distribution/registry/storage"
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"github.com/docker/distribution/registry/storage/cache/memory"
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2015-09-19 01:11:35 +02:00
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"github.com/docker/distribution/registry/storage/driver/filesystem"
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2015-07-29 20:12:01 +02:00
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"github.com/docker/distribution/registry/storage/driver/inmemory"
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2016-12-17 01:28:34 +01:00
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"github.com/opencontainers/go-digest"
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2015-07-29 20:12:01 +02:00
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)
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2015-09-19 01:11:35 +02:00
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var sbsMu sync.Mutex
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2015-07-29 20:12:01 +02:00
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type statsBlobStore struct {
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stats map[string]int
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blobs distribution.BlobStore
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}
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func (sbs statsBlobStore) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
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sbsMu.Lock()
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sbs.stats["put"]++
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Put(ctx, mediaType, p)
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}
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func (sbs statsBlobStore) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["get"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Get(ctx, dgst)
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}
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2016-01-13 20:44:42 +01:00
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func (sbs statsBlobStore) Create(ctx context.Context, options ...distribution.BlobCreateOption) (distribution.BlobWriter, error) {
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2015-09-19 01:11:35 +02:00
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["create"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2016-01-13 20:44:42 +01:00
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return sbs.blobs.Create(ctx, options...)
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2015-07-29 20:12:01 +02:00
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}
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func (sbs statsBlobStore) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
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2015-09-19 01:11:35 +02:00
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["resume"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Resume(ctx, id)
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}
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func (sbs statsBlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["open"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Open(ctx, dgst)
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}
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func (sbs statsBlobStore) ServeBlob(ctx context.Context, w http.ResponseWriter, r *http.Request, dgst digest.Digest) error {
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["serveblob"]++
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.ServeBlob(ctx, w, r, dgst)
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}
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func (sbs statsBlobStore) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
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2015-09-19 01:11:35 +02:00
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["stat"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Stat(ctx, dgst)
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}
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func (sbs statsBlobStore) Delete(ctx context.Context, dgst digest.Digest) error {
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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sbs.stats["delete"]++
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2015-09-19 01:11:35 +02:00
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return sbs.blobs.Delete(ctx, dgst)
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}
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type testEnv struct {
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numUnique int
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inRemote []distribution.Descriptor
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store proxyBlobStore
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ctx context.Context
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}
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2015-09-19 01:11:35 +02:00
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func (te *testEnv) LocalStats() *map[string]int {
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sbsMu.Lock()
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ls := te.store.localStore.(statsBlobStore).stats
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sbsMu.Unlock()
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return &ls
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}
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2015-09-19 01:11:35 +02:00
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func (te *testEnv) RemoteStats() *map[string]int {
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sbsMu.Lock()
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2015-07-29 20:12:01 +02:00
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rs := te.store.remoteStore.(statsBlobStore).stats
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sbsMu.Unlock()
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2015-07-29 20:12:01 +02:00
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return &rs
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}
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// Populate remote store and record the digests
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func makeTestEnv(t *testing.T, name string) *testEnv {
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2015-12-15 23:35:23 +01:00
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nameRef, err := reference.ParseNamed(name)
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if err != nil {
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t.Fatalf("unable to parse reference: %s", err)
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}
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2015-07-29 20:12:01 +02:00
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ctx := context.Background()
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2015-09-19 01:11:35 +02:00
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truthDir, err := ioutil.TempDir("", "truth")
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if err != nil {
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t.Fatalf("unable to create tempdir: %s", err)
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}
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cacheDir, err := ioutil.TempDir("", "cache")
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if err != nil {
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t.Fatalf("unable to create tempdir: %s", err)
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}
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2016-04-26 23:36:38 +02:00
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localDriver, err := filesystem.FromParameters(map[string]interface{}{
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"rootdirectory": truthDir,
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})
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if err != nil {
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t.Fatalf("unable to create filesystem driver: %s", err)
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}
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2015-09-19 01:11:35 +02:00
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// todo: create a tempfile area here
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2016-04-26 23:36:38 +02:00
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localRegistry, err := storage.NewRegistry(ctx, localDriver, storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableRedirect, storage.DisableDigestResumption)
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2015-08-18 19:56:27 +02:00
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if err != nil {
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t.Fatalf("error creating registry: %v", err)
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}
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2015-12-15 23:35:23 +01:00
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localRepo, err := localRegistry.Repository(ctx, nameRef)
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2015-07-29 20:12:01 +02:00
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if err != nil {
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t.Fatalf("unexpected error getting repo: %v", err)
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}
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2016-04-26 23:36:38 +02:00
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cacheDriver, err := filesystem.FromParameters(map[string]interface{}{
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"rootdirectory": cacheDir,
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})
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if err != nil {
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t.Fatalf("unable to create filesystem driver: %s", err)
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}
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truthRegistry, err := storage.NewRegistry(ctx, cacheDriver, storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()))
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2015-08-18 19:56:27 +02:00
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if err != nil {
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t.Fatalf("error creating registry: %v", err)
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}
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2015-12-15 23:35:23 +01:00
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truthRepo, err := truthRegistry.Repository(ctx, nameRef)
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if err != nil {
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t.Fatalf("unexpected error getting repo: %v", err)
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}
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truthBlobs := statsBlobStore{
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stats: make(map[string]int),
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blobs: truthRepo.Blobs(ctx),
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}
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localBlobs := statsBlobStore{
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stats: make(map[string]int),
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blobs: localRepo.Blobs(ctx),
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}
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s := scheduler.New(ctx, inmemory.New(), "/scheduler-state.json")
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proxyBlobStore := proxyBlobStore{
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2016-01-27 01:42:10 +01:00
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repositoryName: nameRef,
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remoteStore: truthBlobs,
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localStore: localBlobs,
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scheduler: s,
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2016-02-11 03:07:28 +01:00
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authChallenger: &mockChallenger{},
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2015-07-29 20:12:01 +02:00
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}
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2015-09-19 01:11:35 +02:00
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te := &testEnv{
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2015-07-29 20:12:01 +02:00
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store: proxyBlobStore,
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ctx: ctx,
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}
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return te
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}
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2015-09-19 01:11:35 +02:00
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func makeBlob(size int) []byte {
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blob := make([]byte, size, size)
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for i := 0; i < size; i++ {
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blob[i] = byte('A' + rand.Int()%48)
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}
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return blob
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}
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func init() {
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rand.Seed(42)
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}
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func perm(m []distribution.Descriptor) []distribution.Descriptor {
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for i := 0; i < len(m); i++ {
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j := rand.Intn(i + 1)
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tmp := m[i]
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m[i] = m[j]
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m[j] = tmp
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}
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return m
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}
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func populate(t *testing.T, te *testEnv, blobCount, size, numUnique int) {
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2015-07-29 20:12:01 +02:00
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var inRemote []distribution.Descriptor
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2015-09-19 01:11:35 +02:00
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for i := 0; i < numUnique; i++ {
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bytes := makeBlob(size)
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for j := 0; j < blobCount/numUnique; j++ {
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desc, err := te.store.remoteStore.Put(te.ctx, "", bytes)
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if err != nil {
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t.Fatalf("Put in store")
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}
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inRemote = append(inRemote, desc)
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2015-07-29 20:12:01 +02:00
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}
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}
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te.inRemote = inRemote
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2015-09-19 01:11:35 +02:00
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te.numUnique = numUnique
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2015-07-29 20:12:01 +02:00
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}
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2016-02-18 01:32:23 +01:00
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func TestProxyStoreGet(t *testing.T) {
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te := makeTestEnv(t, "foo/bar")
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localStats := te.LocalStats()
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remoteStats := te.RemoteStats()
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populate(t, te, 1, 10, 1)
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_, err := te.store.Get(te.ctx, te.inRemote[0].Digest)
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if err != nil {
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t.Fatal(err)
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}
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if (*localStats)["get"] != 1 && (*localStats)["put"] != 1 {
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t.Errorf("Unexpected local counts")
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}
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if (*remoteStats)["get"] != 1 {
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t.Errorf("Unexpected remote get count")
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}
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_, err = te.store.Get(te.ctx, te.inRemote[0].Digest)
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if err != nil {
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t.Fatal(err)
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}
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if (*localStats)["get"] != 2 && (*localStats)["put"] != 1 {
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t.Errorf("Unexpected local counts")
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}
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if (*remoteStats)["get"] != 1 {
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t.Errorf("Unexpected remote get count")
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}
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}
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2015-07-29 20:12:01 +02:00
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func TestProxyStoreStat(t *testing.T) {
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te := makeTestEnv(t, "foo/bar")
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2015-09-19 01:11:35 +02:00
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2015-07-29 20:12:01 +02:00
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remoteBlobCount := 1
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populate(t, te, remoteBlobCount, 10, 1)
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2015-07-29 20:12:01 +02:00
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localStats := te.LocalStats()
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remoteStats := te.RemoteStats()
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// Stat - touches both stores
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for _, d := range te.inRemote {
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_, err := te.store.Stat(te.ctx, d.Digest)
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if err != nil {
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t.Fatalf("Error stating proxy store")
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}
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}
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if (*localStats)["stat"] != remoteBlobCount {
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t.Errorf("Unexpected local stat count")
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}
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if (*remoteStats)["stat"] != remoteBlobCount {
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t.Errorf("Unexpected remote stat count")
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}
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2016-02-11 03:07:28 +01:00
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if te.store.authChallenger.(*mockChallenger).count != len(te.inRemote) {
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t.Fatalf("Unexpected auth challenge count, got %#v", te.store.authChallenger)
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}
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2015-07-29 20:12:01 +02:00
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}
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2015-09-19 01:11:35 +02:00
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func TestProxyStoreServeHighConcurrency(t *testing.T) {
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2015-07-29 20:12:01 +02:00
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te := makeTestEnv(t, "foo/bar")
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2015-09-19 01:11:35 +02:00
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blobSize := 200
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blobCount := 10
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numUnique := 1
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populate(t, te, blobCount, blobSize, numUnique)
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numClients := 16
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testProxyStoreServe(t, te, numClients)
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}
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2015-07-29 20:12:01 +02:00
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2015-09-19 01:11:35 +02:00
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func TestProxyStoreServeMany(t *testing.T) {
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te := makeTestEnv(t, "foo/bar")
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blobSize := 200
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blobCount := 10
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numUnique := 4
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populate(t, te, blobCount, blobSize, numUnique)
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numClients := 4
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testProxyStoreServe(t, te, numClients)
|
|
|
|
}
|
|
|
|
|
|
|
|
// todo(richardscothern): blobCount must be smaller than num clients
|
|
|
|
func TestProxyStoreServeBig(t *testing.T) {
|
|
|
|
te := makeTestEnv(t, "foo/bar")
|
|
|
|
|
|
|
|
blobSize := 2 << 20
|
|
|
|
blobCount := 4
|
|
|
|
numUnique := 2
|
|
|
|
populate(t, te, blobCount, blobSize, numUnique)
|
|
|
|
|
|
|
|
numClients := 4
|
|
|
|
testProxyStoreServe(t, te, numClients)
|
|
|
|
}
|
|
|
|
|
|
|
|
// testProxyStoreServe will create clients to consume all blobs
|
|
|
|
// populated in the truth store
|
|
|
|
func testProxyStoreServe(t *testing.T, te *testEnv, numClients int) {
|
2015-07-29 20:12:01 +02:00
|
|
|
localStats := te.LocalStats()
|
|
|
|
remoteStats := te.RemoteStats()
|
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
var wg sync.WaitGroup
|
|
|
|
|
|
|
|
for i := 0; i < numClients; i++ {
|
|
|
|
// Serveblob - pulls through blobs
|
|
|
|
wg.Add(1)
|
|
|
|
go func() {
|
|
|
|
defer wg.Done()
|
|
|
|
for _, remoteBlob := range te.inRemote {
|
|
|
|
w := httptest.NewRecorder()
|
|
|
|
r, err := http.NewRequest("GET", "", nil)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatal(err)
|
|
|
|
}
|
|
|
|
|
|
|
|
err = te.store.ServeBlob(te.ctx, w, r, remoteBlob.Digest)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf(err.Error())
|
|
|
|
}
|
|
|
|
|
|
|
|
bodyBytes := w.Body.Bytes()
|
2015-12-14 23:30:51 +01:00
|
|
|
localDigest := digest.FromBytes(bodyBytes)
|
2015-09-19 01:11:35 +02:00
|
|
|
if localDigest != remoteBlob.Digest {
|
|
|
|
t.Fatalf("Mismatching blob fetch from proxy")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
}
|
2015-07-29 20:12:01 +02:00
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
wg.Wait()
|
2015-07-29 20:12:01 +02:00
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
remoteBlobCount := len(te.inRemote)
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Lock()
|
2015-09-19 01:11:35 +02:00
|
|
|
if (*localStats)["stat"] != remoteBlobCount*numClients && (*localStats)["create"] != te.numUnique {
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Unlock()
|
2015-09-19 01:11:35 +02:00
|
|
|
t.Fatal("Expected: stat:", remoteBlobCount*numClients, "create:", remoteBlobCount)
|
2015-07-29 20:12:01 +02:00
|
|
|
}
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Unlock()
|
2015-07-29 20:12:01 +02:00
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
// Wait for any async storage goroutines to finish
|
|
|
|
time.Sleep(3 * time.Second)
|
|
|
|
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Lock()
|
2015-09-19 01:11:35 +02:00
|
|
|
remoteStatCount := (*remoteStats)["stat"]
|
|
|
|
remoteOpenCount := (*remoteStats)["open"]
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Unlock()
|
2015-07-29 20:12:01 +02:00
|
|
|
|
|
|
|
// Serveblob - blobs come from local
|
|
|
|
for _, dr := range te.inRemote {
|
|
|
|
w := httptest.NewRecorder()
|
|
|
|
r, err := http.NewRequest("GET", "", nil)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatal(err)
|
|
|
|
}
|
|
|
|
|
|
|
|
err = te.store.ServeBlob(te.ctx, w, r, dr.Digest)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf(err.Error())
|
|
|
|
}
|
|
|
|
|
2015-12-14 23:30:51 +01:00
|
|
|
dl := digest.FromBytes(w.Body.Bytes())
|
2015-07-29 20:12:01 +02:00
|
|
|
if dl != dr.Digest {
|
|
|
|
t.Errorf("Mismatching blob fetch from proxy")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
localStats = te.LocalStats()
|
|
|
|
remoteStats = te.RemoteStats()
|
2015-07-29 20:12:01 +02:00
|
|
|
|
2015-09-19 01:11:35 +02:00
|
|
|
// Ensure remote unchanged
|
2016-08-29 22:39:24 +02:00
|
|
|
sbsMu.Lock()
|
|
|
|
defer sbsMu.Unlock()
|
2015-09-19 01:11:35 +02:00
|
|
|
if (*remoteStats)["stat"] != remoteStatCount && (*remoteStats)["open"] != remoteOpenCount {
|
|
|
|
t.Fatalf("unexpected remote stats: %#v", remoteStats)
|
2015-07-29 20:12:01 +02:00
|
|
|
}
|
|
|
|
}
|