rails: Minitest with Rails 5.2.0 - Uninitialized constant Minitest::Rails::TestUnit (NameError)

While using Ruby 2.3.3 and upgrading the Rails gem from 5.1.4 to 5.2.0.beta2, rake fails:

$ rake
.../gems/railties-5.2.0.beta2/lib/minitest/rails_plugin.rb:16:in `plugin_rails_options': uninitialized constant Minitest::Rails::TestUnit (NameError)
	.../gems/ruby-2.3.3@donortools2/gems/minitest-5.10.3/lib/minitest.rb:201:in `block (2 levels) in process_args'
	.../gems/ruby-2.3.3@donortools2/gems/minitest-5.10.3/lib/minitest.rb:199:in `each'
	.../gems/minitest-5.10.3/lib/minitest.rb:199:in `block in process_args'
	.../.rvm/rubies/ruby-2.3.3/lib/ruby/2.3.0/optparse.rb:1062:in `initialize'
	.../gems/minitest-5.10.3/lib/minitest.rb:169:in `new'
	.../gems/minitest-5.10.3/lib/minitest.rb:169:in `process_args'
	.../gems/minitest-5.10.3/lib/minitest.rb:123:in `run'
	.../gems/minitest-5.10.3/lib/minitest.rb:63:in `block in autorun'

I can’t tell if the problem is withminitest 5.10.3 or Rails 5.2.0.beta2?

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 6
Comments: 24 (11 by maintainers)

Commits related to this issue

Show minitest options in test runner help Since #29572, minitest options are available but are no longer showed in help. This fixed to show minitest option in help as with Rails 5.1.2. **before** `... — committed to rails/rails by y-yagi 7 years ago
Allow use of minitest-rails gem with Rails test runner Add explicit global namespace to `Rails::TestUnit::Runner` to resolve a namespace conflict between `minitest-rails` and Rails test runner. Fixe... — committed to rails/rails by y-yagi 6 years ago
Allow use of minitest-rails gem with Rails test runner Add explicit global namespace to `Rails::TestUnit::Runner` to resolve a namespace conflict between `minitest-rails` and Rails test runner. Fixe... — committed to rails/rails by y-yagi 6 years ago
Include fix in Rails 5-2-stable See related: https://github.com/rails/rails/issues/31324 — committed to merit-gem/merit by tute 6 years ago
Update Ruby and Rails versions - Drops EOL'd Rails 5.0 - Mocha doesn't need to be locked to an older version - Fix deprecation around `ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boole... — committed to merit-gem/merit by tute 6 years ago
Update Ruby and Rails versions - Drops EOL'd Rails 5.0 - Mocha doesn't need to be locked to an older version - Fix deprecation around `ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boole... — committed to JayarOnde/Merit_Rails by JayarOnde 6 years ago

Most upvoted comments

Sorry for the inconvenience. I fixed this issue with 686f4f3. And backported to 5-2-stable 4887f97.

y-yagi on Apr 10, 2018

Monkeypatch:

# https://github.com/rails/rails/issues/31324
if ActionPack::VERSION::STRING >= "5.2.0"
  Minitest::Rails::TestUnit = Rails::TestUnit
end

fix in railties-5.2.0/lib/minitest/rails_plugin.rb:16 should be using ::Rails

grosser on Apr 10, 2018

@mauditecandela meanwhile I edited gems/railties-5.2.0/lib/minitest/rails_plugin.rb and replaced Rails::TestUnit::Runner.attach_before_load_options(opts) with ::Rails::TestUnit::Runner.attach_before_load_options(opts), it’s working on a new 5.2 project.

taq on Apr 16, 2018