[#542] Add test to check delete marker

Signed-off-by: Denis Kirillov <denis@nspcc.ru>

api/handler/delete_test.go

@@ -73,7 +73,7 @@ func TestRemoveDeleteMarker(t *testing.T) {
 
 	checkFound(t, tc, bktName, objName, objInfo.Version())
 	deleteObject(t, tc, bktName, objName, deleteMarkerVersion)
-	checkNotFound(t, tc, bktName, objName, emptyVersion)
+	checkFound(t, tc, bktName, objName, emptyVersion)
 
 	require.True(t, existInMockedNeoFS(tc, bktInfo, objInfo), "object doesn't exist but should")
 }
@@ -154,6 +154,24 @@ func TestDeleteObjectFromListCache(t *testing.T) {
 	require.False(t, existInMockedNeoFS(tc, bktInfo, objInfo))
 }
 
+func TestDeleteObjectCheckMarkerReturn(t *testing.T) {
+	tc := prepareHandlerContext(t)
+
+	bktName, objName := "bucket-for-removal", "object-to-delete"
+	createVersionedBucketAndObject(t, tc, bktName, objName)
+
+	deleteMarker := deleteObject(t, tc, bktName, objName, emptyVersion)
+
+	versions := listVersions(t, tc, bktName)
+	require.Len(t, versions.DeleteMarker, 1)
+	require.Equal(t, deleteMarker, versions.DeleteMarker[0].VersionID)
+
+	deleteMarker2 := deleteObject(t, tc, bktName, objName, deleteMarker)
+	versions = listVersions(t, tc, bktName)
+	require.Len(t, versions.DeleteMarker, 0)
+	require.Equal(t, deleteMarker, deleteMarker2)
+}
+
 func createBucketAndObject(t *testing.T, tc *handlerContext, bktName, objName string) (*data.BucketInfo, *data.ObjectInfo) {
 	createTestBucket(tc.Context(), t, tc, bktName)
 	bktInfo, err := tc.Layer().GetBucketInfo(tc.Context(), bktName)

api/layer/layer.go

@@ -514,6 +514,9 @@ func (n *layer) deleteObject(ctx context.Context, bkt *data.BucketInfo, settings
 		obj.Error = fmt.Errorf("couldn't get random oid: %w", err)
 		return obj
 	}
+
+	obj.DeleteMarkVersion = randOID.EncodeToString()
+
 	newVersion = &data.NodeVersion{
 		BaseNodeVersion: data.BaseNodeVersion{
 			OID:      randOID,