ruby-on-rails - 在 Rails 中运行 rake 测试时排除外部 gem 警告

Question

我正在尝试设置我的 Rails 3.2 应用程序的 cloud9 ( https://c9.io ) 测试安装，以便新开发人员可以快速启动并运行它以提交更改和运行测试。我所有的测试都通过了，但是它们混杂着许多与不同 gem 相关的警告:

Loaded suite /usr/local/rvm/gems/ruby-2.1.2/gems/rake-11.1.1/lib/rake/rake_test_loaderStarted......Finished in 0.22973343 seconds.------6 tests, 10 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications0% passed------26.12 tests/s, 43.53 assertions/sLoaded suite /usr/local/rvm/gems/ruby-2.1.2/gems/rake-11.1.1/lib/rake/rake_test_loaderStarted............................................Finished in 4.18306875 seconds.------44 tests, 77 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications/usr/local/rvm/gems/ruby-2.1.2/gems/composite_primary_keys-5.0.14/lib/composite_primary_keys/relation.rb:26: warning: previous definition of destroy was here/usr/local/rvm/gems/ruby-2.1.2/gems/composite_primary_keys-5.0.14/lib/composite_primary_keys/relation.rb:10: warning: method redefined; discarding old delete/usr/local/rvm/gems/ruby-2.1.2/gems/composite_primary_keys-5.0.14/lib/composite_primary_keys/relation.rb:10: warning: previous definition of delete was here/usr/local/rvm/gems/ruby-2.1.2/gems/composite_primary_keys-5.0.14/lib/composite_primary_keys/relation.rb:26: warning: method redefined; discarding old destroy

...它继续并为许多其他 gem 生成警告。

在我自己的 Ubuntu/Debian 机器上，我看不到这些警告，它们让我很难看到现在散布在其他几十行警告中的测试结果。

有没有办法抑制警告或配置我的测试，以便它们不会触发这种冗长程度？

Answer 1

这里有许多针对不同环境的选项:Suppress Ruby warnings when running specs

我使用了 RUBYOPT=W0 rake test，它在带有 RVM 的(crouton，ARM)Ubuntu 14 系统上运行。