mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
a0230f3d9a
I think this was there for historic reasons (may have been goimports expected this, and we used to have a linter that wanted it), but it's not needed, so let's remove it (to make my IDE less complaining about unneeded aliases). Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package layer // import "github.com/docker/docker/layer"
|
|
|
|
import (
|
|
"io"
|
|
"testing"
|
|
|
|
"github.com/opencontainers/go-digest"
|
|
)
|
|
|
|
func TestEmptyLayer(t *testing.T) {
|
|
if EmptyLayer.ChainID() != ChainID(DigestSHA256EmptyTar) {
|
|
t.Fatal("wrong ChainID for empty layer")
|
|
}
|
|
|
|
if EmptyLayer.DiffID() != DigestSHA256EmptyTar {
|
|
t.Fatal("wrong DiffID for empty layer")
|
|
}
|
|
|
|
if EmptyLayer.Parent() != nil {
|
|
t.Fatal("expected no parent for empty layer")
|
|
}
|
|
|
|
if size := EmptyLayer.Size(); size != 0 {
|
|
t.Fatal("expected zero size for empty layer")
|
|
}
|
|
|
|
if diffSize := EmptyLayer.DiffSize(); diffSize != 0 {
|
|
t.Fatal("expected zero diffsize for empty layer")
|
|
}
|
|
|
|
meta, err := EmptyLayer.Metadata()
|
|
|
|
if len(meta) != 0 || err != nil {
|
|
t.Fatal("expected zero length metadata for empty layer")
|
|
}
|
|
|
|
tarStream, err := EmptyLayer.TarStream()
|
|
if err != nil {
|
|
t.Fatalf("error streaming tar for empty layer: %v", err)
|
|
}
|
|
|
|
digester := digest.Canonical.Digester()
|
|
_, err = io.Copy(digester.Hash(), tarStream)
|
|
|
|
if err != nil {
|
|
t.Fatalf("error hashing empty tar layer: %v", err)
|
|
}
|
|
|
|
if digester.Digest() != digest.Digest(DigestSHA256EmptyTar) {
|
|
t.Fatal("empty layer tar stream hashes to wrong value")
|
|
}
|
|
}
|