[DRE-maint] Bug#996520: ruby-varia-model: FTBFS with ruby3.0: ERROR: Test "ruby3.0" failed: Failure/Error: expect(subject.to_json).to eql(JSON.dump(first_name: "brooke", nick: "leblanc"))

[Antonio Terceiro]

Source: ruby-varia-model
Version: 0.6.0-1
Severity: serious
Justification: FTBFS
Tags: bookworm sid ftbfs
User: debian-ruby at lists.debian.org
Usertags: ruby3.0

Hi,

We are about to enable building against ruby3.0 on unstable. During a test
rebuild, ruby-varia-model was found to fail to build in that situation.

To reproduce this locally, you need to install ruby-all-dev from experimental
on an unstable system or build chroot.

Relevant part (hopefully):
>      Failure/Error: expect(subject.to_json).to eql(JSON.dump(first_name: "brooke", nick: "leblanc"))
> 
>        expected: "{\"first_name\":\"brooke\",\"nick\":\"leblanc\"}"
>             got: "{\"first_name\":\"brooke\",\"nick\":\"leblanc\",\"json_class\":\"Playa\"}"
> 
>        (compared using eql?)
>      # ./spec/unit/varia_model_spec.rb:665:in `block (4 levels) in <top (required)>'
> 
> Finished in 0.29999 seconds (files took 0.81399 seconds to load)
> 68 examples, 1 failure
> 
> Failed examples:
> 
> rspec ./spec/unit/varia_model_spec.rb:661 # VariaModel#to_json when JSON.create_id is nil does not include a nil key
> 
> /usr/bin/ruby3.0 -I/usr/share/rubygems-integration/all/gems/rspec-support-3.9.3/lib:/usr/share/rubygems-integration/all/gems/rspec-core-3.9.2/lib /usr/share/rubygems-integration/all/gems/rspec-core-3.9.2/exe/rspec --pattern ./spec/\*\*/\*_spec.rb --format documentation failed
> ERROR: Test "ruby3.0" failed: 


The full build log is available at
https://people.debian.org/~kanashiro/ruby3.0/round2/builds/3/ruby-varia-model/ruby-varia-model_0.6.0-1+rebuild1633398422_amd64.build.txt
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