Check for nested URI support.

valkyrie/lib/valkyrie/persistence/solr/resource_factory.rb

@@ -205,6 +205,17 @@ def result
         end
       end
 
+      class NestedResourceURI < ::Valkyrie::ValueMapper
+        NestedResourceConverter.register(self)
+        def self.handles?(value)
+          value.is_a?(Hash) && value[:@id]
+        end
+
+        def result
+          RDF::URI(value[:@id])
+        end
+      end
+
       class NestedResourceLiteral < ::Valkyrie::ValueMapper
         NestedResourceConverter.register(self)
         def self.handles?(value)

valkyrie/lib/valkyrie/specs/shared_specs/persister.rb

@@ -54,14 +54,14 @@ class CustomResource < Valkyrie::Resource
 
   it "can support deep nesting of resources" do
     pending "No support for deep nesting." if flags.include?(:no_deep_nesting)
-    book = resource_class.new(title: "Sub-nested", author: [Valkyrie::ID.new("test"), RDF::Literal.new("Test", language: :fr)])
+    book = resource_class.new(title: "Sub-nested", author: [Valkyrie::ID.new("test"), RDF::Literal.new("Test", language: :fr), RDF::URI("http://test.com")])
     book2 = resource_class.new(title: "Nested", nested_resource: book)
     book3 = persister.save(resource: resource_class.new(nested_resource: book2))
 
     reloaded = query_service.find_by(id: book3.id)
     expect(reloaded.nested_resource.first.title).to eq ["Nested"]
     expect(reloaded.nested_resource.first.nested_resource.first.title).to eq ["Sub-nested"]
-    expect(reloaded.nested_resource.first.nested_resource.first.author).to contain_exactly Valkyrie::ID.new("test"), RDF::Literal.new("Test", language: :fr)
+    expect(reloaded.nested_resource.first.nested_resource.first.author).to contain_exactly Valkyrie::ID.new("test"), RDF::Literal.new("Test", language: :fr), RDF::URI("http://test.com")
   end
 
   it "stores created_at/updated_at" do