Warning messages with RSpec 'config.warnings=true' on

[zhenkyle]

When setting this Rspec option

RSpec.configure do |config|
  config.warnings = true
end

and run specs which include EventedSpec::SpecHelper, I got these warning messages

zhenkyle@hp870:~/Documents/Github/shadowsocks-ruby$ bin/rspec spec/unit/connections/connection_spec.rb
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/spec_helper.rb:129: warning: `*' interpreted as argument prefix
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/spec_helper.rb:137: warning: `*' interpreted as argument prefix
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/ext/amqp.rb:25: warning: `&' interpreted as argument prefix
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/em_spec.rb:17: warning: shadowing outer local variable - args
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/amqp_spec.rb:18: warning: shadowing outer local variable - args
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/coolio_spec.rb:17: warning: shadowing outer local variable - args

Shadowsocks::Connections::Connection
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/spec_helper.rb:45: warning: instance variable @evented_spec_metadata not initialized
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/evented_example/em_example.rb:43: warning: instance variable @spec_timer not initialized
  can receive data in process_hook
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/evented_example/em_example.rb:43: warning: instance variable @spec_timer not initialized
  can receive data with specific length in process_hook
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/evented_example/em_example.rb:43: warning: instance variable @spec_timer not initialized
  can receive data until some str appears in process_hook
/home/zhenkyle/.rvm/gems/ruby-2.3.3/gems/evented-spec-1.0.0.beta2/lib/evented-spec/evented_example/em_example.rb:43: warning: instance variable @spec_timer not initialized
  can send data in process_hook
  can send data with pressure control

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5 examples, 0 failures