add fuzz test for artifact reference parsing

Signed-off-by: Adam Korczynski <[email protected]>

fuzz_test.go

@@ -0,0 +1,33 @@
+// Copyright The Notary Project Authors.
+// 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 notation
+
+import (
+	"testing"
+
+	orasRegistry "oras.land/oras-go/v2/registry"
+)
+
+func FuzzArtifactReferenceParsing(f *testing.F) {
+	f.Fuzz(func(t *testing.T, artifactRef string) {
+		ref, err := orasRegistry.ParseReference(artifactRef)
+		if err != nil {
+			t.Skip()
+		}
+		if ref.Reference == "" {
+			t.Skip()
+		}
+		ref.ValidateReferenceAsDigest()
+	})
+}