Fix Ox adapter incorrectly handling documents with XML declaration

CHANGELOG.md

@@ -6,6 +6,9 @@
 ### Changed
 - Drop support for Ruby 2.6 and Ruby 2.7
 
+### Fixed
+- Fix Ox adapter incorrectly handling documents with XML declaration
+
 ## [1.0.0] - 2023-07-15
 
 ### Added

lib/shale/adapter/ox.rb

@@ -22,7 +22,8 @@ module Ox
       #
       # @api private
       def self.load(xml)
-        Node.new(::Ox.parse(xml))
+        element = ::Ox.parse(xml)
+        Node.new(element.respond_to?(:root) ? element.root : element)
       rescue ::Ox::ParseError => e
         raise ParseError, "Document is invalid: #{e.message}"
       end

spec/shale/adapter/ox_spec.rb

@@ -12,6 +12,13 @@
       end
     end
 
+    context 'with XML document containing declaration' do
+      it 'parses XML document' do
+        doc = described_class.load('<?xml version="1.0"?><foo></foo>')
+        expect(doc.name).to eq('foo')
+      end
+    end
+
     context 'with invalid XML document' do
       it 'raises an error' do
         expect do