1 files changed, 81 insertions, 0 deletions
diff --git a/pkg/v1/layout/index_test.go b/pkg/v1/layout/index_test.go
new file mode 100644
index 0000000..4478831
--- /dev/null
+++ b/pkg/v1/layout/index_test.go
@@ -0,0 +1,81 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package layout
+
+import (
+	"testing"
+
+	v1 "github.com/google/go-containerregistry/pkg/v1"
+	"github.com/google/go-containerregistry/pkg/v1/types"
+	"github.com/google/go-containerregistry/pkg/v1/validate"
+)
+
+func TestIndex(t *testing.T) {
+	idx, err := ImageIndexFromPath(testPath)
+	if err != nil {
+		t.Fatalf("ImageIndexFromPath() = %v", err)
+	}
+
+	if err := validate.Index(idx); err != nil {
+		t.Errorf("validate.Index() = %v", err)
+	}
+
+	mt, err := idx.MediaType()
+	if err != nil {
+		t.Fatalf("MediaType() = %v", err)
+	}
+
+	if got, want := mt, types.OCIImageIndex; got != want {
+		t.Errorf("MediaType(); want: %v got: %v", want, got)
+	}
+
+	indexHash, _ := v1.NewHash("sha256:2b29a2b8dea3af91ea7d0154be1da0c92d55ddd098540930fc8d3db7de377fdb")
+	ii, err := idx.ImageIndex(indexHash)
+	if err != nil {
+		t.Fatalf("ImageIndex() = %v", err)
+	}
+
+	mt, err = ii.MediaType()
+	if err != nil {
+		t.Fatalf("MediaType() = %v", err)
+	}
+
+	if got, want := mt, types.DockerManifestList; got != want {
+		t.Errorf("MediaType(); want: %v got: %v", want, got)
+	}
+}
+
+func TestIndexErrors(t *testing.T) {
+	idx, err := ImageIndexFromPath(testPath)
+	if err != nil {
+		t.Fatalf("ImageIndexFromPath() = %v", err)
+	}
+
+	if _, err := idx.Image(bogusDigest); err == nil {
+		t.Errorf("idx.Image(%s) = nil, expected err", bogusDigest)
+	}
+
+	if _, err := idx.Image(indexDigest); err == nil {
+		t.Errorf("idx.Image(%s) = nil, expected err", bogusDigest)
+	}
+
+	if _, err := idx.ImageIndex(bogusDigest); err == nil {
+		t.Errorf("idx.ImageIndex(%s) = nil, expected err", bogusDigest)
+	}
+
+	if _, err := idx.ImageIndex(manifestDigest); err == nil {
+		t.Errorf("idx.ImageIndex(%s) = nil, expected err", bogusDigest)
+	}
+}