[DRE-maint] Bug#996344: ruby-openstack: FTBFS with ruby3.0: ERROR: Test "ruby3.0" failed: Error: test_rebuild_server(ServersTest): NoMethodError: undefined method `encode' for URI:Module

[Antonio Terceiro]

Source: ruby-openstack
Version: 2.0.2-1.1
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-openstack 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):
> Error: test_rebuild_server(ServersTest): NoMethodError: undefined method `encode' for URI:Module
> /<<PKGBUILDDIR>>/lib/openstack/compute/server.rb:52:in `populate'
> /<<PKGBUILDDIR>>/lib/openstack/compute/server.rb:39:in `initialize'
> /<<PKGBUILDDIR>>/lib/openstack/compute/connection.rb:30:in `new'
> /<<PKGBUILDDIR>>/lib/openstack/compute/connection.rb:30:in `get_server'
> /<<PKGBUILDDIR>>/test/unit/servers_test.rb:223:in `get_test_server'
> /<<PKGBUILDDIR>>/test/unit/servers_test.rb:181:in `test_rebuild_server'
>      178:     }
>      179:     }}
>      180: 
>   => 181:     server=get_test_server
>      182: 
>      183:     response = mock()
>      184:     response.stubs(:code => "200", :body => json_response)
> ===============================================================================
> : (0.047847)
> VolumeConnectionTest: 
>   test_get_quotas:					.: (0.018005)
>   test_list_volume_types:				.: (0.001369)
>   test_update_quotas:					.: (0.001209)
> 
> Finished in 15.399109235 seconds.
> -------------------------------------------------------------------------------
> 45 tests, 183 assertions, 0 failures, 2 errors, 0 pendings, 0 omissions, 0 notifications
> 95.5556% passed
> -------------------------------------------------------------------------------
> 2.92 tests/s, 11.88 assertions/s
> rake aborted!
> Command failed with status (1): [ruby -w -I"test" /usr/lib/ruby/gems/3.0.0/gems/rake-13.0.3/lib/rake/rake_test_loader.rb "test/unit/authentication_test.rb" "test/unit/connection_test.rb" "test/unit/exception_test.rb" "test/unit/flavors_test.rb" "test/unit/identity_connection_test.rb" "test/unit/images_test.rb" "test/unit/metadata_test.rb" "test/unit/servers_test.rb" "test/unit/volume_connection_test.rb" "test/test_helper.rb" -v]
> 
> Tasks: TOP => default
> (See full trace by running task with --trace)
> ERROR: Test "ruby3.0" failed: 


The full build log is available at
https://people.debian.org/~kanashiro/ruby3.0/round2/builds/3/ruby-openstack/ruby-openstack_2.0.2-1.1+rebuild1633390222_amd64.build.txt
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