EphemeraBox generates valid JSON-LD

app/presenters/hyrax_show_presenter.rb

@@ -47,6 +47,7 @@ def local_fields
     end
 
     def rights_object
+      return if solr_document.rights_statement.blank?
       {
         '@id': solr_document.rights_statement.first,
         '@type': 'dcterms:RightsStatement',
@@ -63,6 +64,7 @@ def col_url(id)
     end
 
     def collection_objects
+      return if member_of_collection_ids.blank?
       member_of_collection_ids.zip(collection).map { |arr| { '@id': col_url(arr.first), title: arr.last, '@type': 'pcdm:Collection' } }
     end
 

spec/presenters/ephemera_box_presenter_spec.rb

@@ -34,4 +34,14 @@
       expect(subject.member_ids).to eq [folder.id]
     end
   end
+
+  describe "#export_as_jsonld" do
+    before do
+      allow(subject).to receive(:id).and_return('abcd1234')
+    end
+    it "generates json" do
+      json = JSON.parse(subject.export_as_jsonld)
+      expect(json['@id']).to eq('http://plum.com/concern/ephemera_boxes/abcd1234')
+    end
+  end
 end