revert case

Signed-off-by: Lixia (Sylvia) Lei <[email protected]>

registry/remote/repository_test.go

@@ -7815,6 +7815,32 @@ func TestManifestStore_generateDescriptor(t *testing.T) {
 			wantDescriptor: ocispec.Descriptor{},
 			wantErr:        true,
 		},
+		{
+			name: "resp with body, missing Docker-Content-Digest",
+			resp: &http.Response{
+				Header: http.Header{
+					"Content-Type": []string{mediaType},
+				},
+				ContentLength: dataSize,
+				Request: &http.Request{
+					Method: http.MethodGet,
+					URL:    &url.URL{Path: "/test"},
+				},
+				Body: io.NopCloser(bytes.NewReader(data)),
+			},
+			ref: registry.Reference{
+				Registry:   "registry.example.com",
+				Repository: "hello-world",
+				Reference:  dataDigest.String(),
+			},
+			httpMethod: http.MethodGet,
+			wantDescriptor: ocispec.Descriptor{
+				MediaType: mediaType,
+				Digest:    dataDigest,
+				Size:      dataSize,
+			},
+			wantErr: false,
+		},
 		{
 			name: "failed to read resp with body, missing Docker-Content-Digest",
 			resp: &http.Response{