distribution/registry/storage/linkedblobstore_test.go
Michal Minář 3f1434525b Export storage.CreateOptions in top-level package
Let the options for `BlobStore.Create()` be modified in middleware
wrappers.

Signed-off-by: Michal Minar <miminar@redhat.com>
2016-07-06 16:40:46 +02:00

78 lines
2.3 KiB
Go

package storage
import (
"io"
"testing"
"github.com/docker/distribution"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
"github.com/docker/distribution/reference"
"github.com/docker/distribution/testutil"
)
func TestLinkedBlobStoreCreateWithMountFrom(t *testing.T) {
fooRepoName, _ := reference.ParseNamed("nm/foo")
fooEnv := newManifestStoreTestEnv(t, fooRepoName, "thetag")
ctx := context.Background()
// Build up some test layers and add them to the manifest, saving the
// readseekers for upload later.
testLayers := map[digest.Digest]io.ReadSeeker{}
for i := 0; i < 2; i++ {
rs, ds, err := testutil.CreateRandomTarFile()
if err != nil {
t.Fatalf("unexpected error generating test layer file")
}
dgst := digest.Digest(ds)
testLayers[digest.Digest(dgst)] = rs
}
// upload the layers to foo/bar
for dgst, rs := range testLayers {
wr, err := fooEnv.repository.Blobs(fooEnv.ctx).Create(fooEnv.ctx)
if err != nil {
t.Fatalf("unexpected error creating test upload: %v", err)
}
if _, err := io.Copy(wr, rs); err != nil {
t.Fatalf("unexpected error copying to upload: %v", err)
}
if _, err := wr.Commit(fooEnv.ctx, distribution.Descriptor{Digest: dgst}); err != nil {
t.Fatalf("unexpected error finishing upload: %v", err)
}
}
// create another repository nm/bar
barRepoName, _ := reference.ParseNamed("nm/bar")
barRepo, err := fooEnv.registry.Repository(ctx, barRepoName)
if err != nil {
t.Fatalf("unexpected error getting repo: %v", err)
}
// cross-repo mount the test layers into a nm/bar
for dgst := range testLayers {
fooCanonical, _ := reference.WithDigest(fooRepoName, dgst)
option := WithMountFrom(fooCanonical)
// ensure we can instrospect it
createOpts := distribution.CreateOptions{}
if err := option.Apply(&createOpts); err != nil {
t.Fatalf("failed to apply MountFrom option: %v", err)
}
if !createOpts.Mount.ShouldMount || createOpts.Mount.From.String() != fooCanonical.String() {
t.Fatalf("unexpected create options: %#+v", createOpts.Mount)
}
_, err := barRepo.Blobs(ctx).Create(ctx, WithMountFrom(fooCanonical))
if err == nil {
t.Fatalf("unexpected non-error while mounting from %q: %v", fooRepoName.String(), err)
}
if _, ok := err.(distribution.ErrBlobMounted); !ok {
t.Fatalf("expected ErrMountFrom error, not %T: %v", err, err)
}
}
}