Tests failing with multiple NoMethodError

[Segaja]

When trying to run tests for version 2.0.21 with rake test I get this output:

/usr/bin/ruby -w -I"lib:test" /usr/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb "test/crypto_test.rb" "test/ctx_test.rb" "test/data_test.rb" "test/gpgme_test.rb" "test/key_test.rb" "test/signature_test.rb" "test/sub_key_test.rb"
/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:73: warning: assigned but unused variable - cipher
/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:74: warning: assigned but unused variable - ouput
/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:123: warning: assigned but unused variable - ctx
/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/data_test.rb:28: warning: ambiguity between regexp and two divisions: wrap regexp in parentheses or add a space after `/' operator
/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/data_test.rb:35: warning: ambiguity between regexp and two divisions: wrap regexp in parentheses or add a space after `/' operator
Run options: --seed 41060

# Running:

EEEEEE....EE.DEPRECATED: Use assert_nil if expecting nil from /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/data_test.rb:126. This will fail in Minitest 6.
..........E......................E.F...........................EE.EEE..............................

Finished in 3.025648s, 37.0169 runs/s, 62.7965 assertions/s.

  1) Error:
GPGME::Key::usable_for?#test_0001_checks for the capabilities of the key and returns true if it matches all:
NoMethodError: undefined method `stubs' for #<GPGME::Key sec 1024R/5B5D5C77 2011-04-23 trust=nil, owner_trust=:unknown, capability=[:encrypt, :sign, :certify], subkeys=[#<GPGME::SubKey ssc 1024R/5B5D5C77 2011-04-23 trust=nil, capability=[:sign, :certify]>, #<GPGME::SubKey ssc 1024R/E427BED4 2011-04-23 trust=nil, capability=[:encrypt]>], uids=[#<GPGME::UserID Test number 1 <test1@example.com> validity=unknown, signatures=[]>]>
Did you mean?  stub
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:142:in `block (3 levels) in <top (required)>'

  2) Error:
GPGME::Key::usable_for?#test_0002_returns false if the key is expired or revoked or disabled or disabled:
NoMethodError: undefined method `stubs' for #<GPGME::Key sec 1024R/5B5D5C77 2011-04-23 trust=nil, owner_trust=:unknown, capability=[:encrypt, :sign, :certify], subkeys=[#<GPGME::SubKey ssc 1024R/5B5D5C77 2011-04-23 trust=nil, capability=[:sign, :certify]>, #<GPGME::SubKey ssc 1024R/E427BED4 2011-04-23 trust=nil, capability=[:encrypt]>], uids=[#<GPGME::UserID Test number 1 <test1@example.com> validity=unknown, signatures=[]>]>
Did you mean?  stub
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:154:in `block (3 levels) in <top (required)>'

  3) Error:
GPGME::Key::export#test_0001_exports any key that matches the pattern:
NoMethodError: undefined method `any_instance' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:69:in `block (3 levels) in <top (required)>'

  4) Error:
GPGME::Key::export#test_0003_can specify options for Ctx:
NoMethodError: undefined method `expects' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:81:in `block (3 levels) in <top (required)>'

  5) Error:
GPGME::Key::export#test_0002_exports any key that matches the pattern, can specify output:
NoMethodError: undefined method `any_instance' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:75:in `block (3 levels) in <top (required)>'

  6) Error:
GPGME::Key::export#test_0004_can export a minimal key:
NoMethodError: undefined method `any_instance' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:86:in `block (3 levels) in <top (required)>'

  7) Error:
GPGME::Key::import#test_0001_can import keys:
NoMethodError: undefined method `any_instance' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:110:in `block (3 levels) in <top (required)>'

  8) Error:
GPGME::Key::import#test_0002_can specify options for Ctx:
NoMethodError: undefined method `expects' for GPGME::Ctx:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:117:in `block (3 levels) in <top (required)>'

  9) Error:
GPGME::Key::find#test_0005_filters by capabilities:
NoMethodError: undefined method `any_instance' for GPGME::Key:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:59:in `block (3 levels) in <top (required)>'

 10) Error:
GPGME::Key#test_0006_returns the expiry date of the first subkey:
NoMethodError: undefined method `expects' for #<GPGME::SubKey ssc 1024R/77D66566 2011-04-23 trust=nil, capability=[:sign, :certify]>
Did you mean?  expires
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:195:in `block (2 levels) in <top (required)>'

 11) Failure:
GPGME::Ctx::key export/import#test_0001_exports and imports all keys when passing an empty string [/build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:325]:
Expected: 5
  Actual: 4

 12) Error:
GPGME::Key::#export#test_0001_can export from the key instance:
NoMethodError: undefined method `expects' for GPGME::Key:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:94:in `block (3 levels) in <top (required)>'

 13) Error:
GPGME::Key::#export#test_0002_can export from the key instance passing variables:
NoMethodError: undefined method `expects' for GPGME::Key:Class
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/key_test.rb:101:in `block (3 levels) in <top (required)>'

 14) Error:
GPGME::Ctx#test_0003_closes itself if called with a block:
NoMethodError: undefined method `expects' for GPGME:Module
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:19:in `block (2 levels) in <top (required)>'

 15) Error:
GPGME::Ctx#test_0002_doesn't close itself:
NoMethodError: undefined method `expects' for GPGME:Module
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:14:in `block (2 levels) in <top (required)>'

 16) Error:
GPGME::Ctx#test_0004_can be closed with the release method:
NoMethodError: undefined method `expects' for GPGME:Module
    /build/ruby-gpgme/src/ruby-gpgme-2.0.21/test/ctx_test.rb:24:in `block (2 levels) in <top (required)>'

112 runs, 190 assertions, 1 failures, 15 errors, 0 skips
rake aborted!
Command failed with status (1): [ruby -w -I"lib:test" /usr/lib/ruby/gems/3.0.0/gems/rake-13.0.6/lib/rake/rake_test_loader.rb "test/crypto_test.rb" "test/ctx_test.rb" "test/data_test.rb" "test/gpgme_test.rb" "test/key_test.rb" "test/signature_test.rb" "test/sub_key_test.rb" ]

Tasks: TOP => test
(See full trace by running task with --trace)

[ueno]

Since the CI is running well, this is probably specific to your setup. Could you provide more information, e.g., Ruby version, whether you are using system libraries or not?

[Segaja]

ruby 3.0.4p208 (2022-04-12 revision 3fa771dded) [x86_64-linux]

RubyGems Environment:
  - RUBYGEMS VERSION: 3.3.23
  - RUBY VERSION: 3.0.4 (2022-04-12 patchlevel 208) [x86_64-linux]
  - INSTALLATION DIRECTORY: /usr/lib/ruby/gems/3.0.0
  - USER INSTALLATION DIRECTORY: /build/.local/share/gem/ruby/3.0.0
  - RUBY EXECUTABLE: /usr/bin/ruby
  - GIT EXECUTABLE:
  - EXECUTABLE DIRECTORY: /usr/bin
  - SPEC CACHE DIRECTORY: /build/.local/share/gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
     - ruby
     - x86_64-linux
  - GEM PATHS:
     - /usr/lib/ruby/gems/3.0.0
     - /build/.local/share/gem/ruby/3.0.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => true
     - :bulk_threshold => 1000
     - "gem" => "--user-install"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/bin
     - /usr/bin/site_perl
     - /usr/bin/vendor_perl
     - /usr/bin/core_perl

And Yes for the building and installation I use --use-system-libraries. Do I need to pass something to the tests to recognize this also?