[openSUSE/open-build-service] db6bda: Fix broken specs in Kiwi::Image model

Branch: refs/heads/depfu/update/srcapi/flipper-0.24.0 Home: https://github.com/openSUSE/open-build-service Commit: db6bda19896aae288495a8cdb48a6453f944387a https://github.com/openSUSE/open-build-service/commit/db6bda19896aae288495a8... Author: Dany Marcoux Date: 2022-03-21 (Mon, 21 Mar 2022) Changed paths: M src/api/app/models/kiwi/image/xml_builder.rb M src/api/spec/models/kiwi/image_spec.rb Log Message: ----------- Fix broken specs in Kiwi::Image model Two specs were failing when checking if the subject didn't have errors: ``` Failure/Error: it { expect(subject.errors).to be_empty } expected `[#].empty?` to be truthy, got false ./spec/models/kiwi/image_spec.rb:226:in `block (5 levels) in ' Failure/Error: expect(subject.errors).to be_empty expected `[#].empty?` to be truthy, got false ./spec/models/kiwi/image_spec.rb:279:in `block (4 levels) in ' ``` Those errors weren't reported before nokogiri _1.13.0_, as noted in the changelog upstream:

XML::DocumentFragment#errors now correctly contains any parsing errors encountered. Previously this was always empty. (Note that HTML::DocumentFragment#errors already did this.

Relying on XML::DocumentFragment was wrong since the XML generated by the Kiwi::Image's to_xml and kiwi_body methods is not a document fragment, but a document. They contain a XML declaration (`<?xml ...?>`), so changing the class solves the issue.