1 files changed, 40 insertions, 0 deletions
diff --git a/pkg/v1/empty/index_test.go b/pkg/v1/empty/index_test.go
new file mode 100644
index 0000000..dd99e10
--- /dev/null
+++ b/pkg/v1/empty/index_test.go
@@ -0,0 +1,40 @@
+// 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 empty
+
+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) {
+	if err := validate.Index(Index); err != nil {
+		t.Fatalf("validate.Index(empty.Index) = %v", err)
+	}
+
+	if mt, err := Index.MediaType(); err != nil || mt != types.OCIImageIndex {
+		t.Errorf("empty.Index.MediaType() = %v, %v", mt, err)
+	}
+
+	if _, err := Index.Image(v1.Hash{}); err == nil {
+		t.Errorf("empty.Index.Image() should always fail")
+	}
+	if _, err := Index.ImageIndex(v1.Hash{}); err == nil {
+		t.Errorf("empty.Index.ImageIndex() should always fail")
+	}
+}