package schema1 import ( "testing" "github.com/docker/distribution/context" "github.com/docker/distribution/digest" "github.com/docker/distribution/manifest" "github.com/docker/libtrust" ) func makeSignedManifest(t *testing.T, pk libtrust.PrivateKey, refs []Reference) *SignedManifest { u := &Manifest{ Versioned: manifest.Versioned{ SchemaVersion: 1, }, Name: "foo/bar", Tag: "latest", Architecture: "amd64", } for i := len(refs) - 1; i >= 0; i-- { u.FSLayers = append(u.FSLayers, FSLayer{ BlobSum: refs[i].Digest, }) u.History = append(u.History, History{ V1Compatibility: refs[i].History.V1Compatibility, }) } signedManifest, err := Sign(u, pk) if err != nil { t.Fatalf("unexpected error signing manifest: %v", err) } return signedManifest } func TestReferenceBuilder(t *testing.T) { pk, err := libtrust.GenerateECP256PrivateKey() if err != nil { t.Fatalf("unexpected error generating private key: %v", err) } r1 := Reference{ Digest: "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Size: 1, History: History{V1Compatibility: "{\"a\" : 1 }"}, } r2 := Reference{ Digest: "sha256:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", Size: 2, History: History{V1Compatibility: "{\"\a\" : 2 }"}, } handCrafted := makeSignedManifest(t, pk, []Reference{r1, r2}) b := NewReferenceManifestBuilder(pk, handCrafted.Manifest.Name, handCrafted.Manifest.Tag, handCrafted.Manifest.Architecture) _, err = b.Build(context.Background()) if err == nil { t.Fatal("Expected error building zero length manifest") } err = b.AppendReference(r1) if err != nil { t.Fatal(err) } err = b.AppendReference(r2) if err != nil { t.Fatal(err) } refs := b.References() if len(refs) != 2 { t.Fatalf("Unexpected reference count : %d != %d", 2, len(refs)) } // Ensure ordering if refs[0].Digest != r2.Digest { t.Fatalf("Unexpected reference : %v", refs[0]) } m, err := b.Build(context.Background()) if err != nil { t.Fatal(err) } built, ok := m.(*SignedManifest) if !ok { t.Fatalf("unexpected type from Build() : %T", built) } d1 := digest.FromBytes(built.Canonical) d2 := digest.FromBytes(handCrafted.Canonical) if d1 != d2 { t.Errorf("mismatching canonical JSON") } }