has_native_period section set optional because of notprovided case

dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql

@@ -104,8 +104,10 @@ where {
         select  *
         where {
             %record aocat:has_temporal_coverage  ?temporalCoverage .
-            ?temporalCoverage aocat:has_native_period ?temporalNative .
-            ?temporalNative skos:prefLabel ?temporalNativePeriodName .
+            optional {
+                ?temporalCoverage aocat:has_native_period ?temporalNative .
+                ?temporalNative skos:prefLabel ?temporalNativePeriodName .
+            }
             optional {
                 ?temporalCoverage aocat:has_period ?temporalPeriodO .
                 optional {

dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java

@@ -58,16 +58,16 @@ public class GraphDbReaderAndESIndexTest {
         final ClassPathResource queryTemplateResource;
         boolean testRecord = false;
         if (testRecord) {
-            recordId = "https://ariadne-infrastructure.eu/aocat/Resource/D200902C-A1C2-346E-8F37-E8A429260ADE";
+            recordId = "https://ariadne-infrastructure.eu/aocat/Resource/3037F979-F94F-380B-A6A6-3972ED10E61C";
             queryTemplateResource = new ClassPathResource("eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql");
         }
         else {
-            recordId = "https://ariadne-infrastructure.eu/aocat/Collection/HNM/0F1AF07E-CE63-342C-8E95-11FF1C024BD5";
+            recordId = "https://ariadne-infrastructure.eu/aocat/Collection/CENIEH/A4A042CF-4FD6-3FB4-B701-CBC8A1653ADA";
             queryTemplateResource = new ClassPathResource("eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql");
         }
 
-        String datasource = "hnm";
-        String collectionId = "hnmad";
+        String datasource = "cenieh";
+        String collectionId = "171";
         List<String> recordIds = Arrays.asList(recordId);
         String queryTemplate = IOUtils.toString(queryTemplateResource.getInputStream(), StandardCharsets.UTF_8.name());
         if (testRecord) {