respond_to_missing? does not convert method to symbol

[splattael]

Hi,

there is a difference between MRI and JRuby when handling respond_to? via respond_to_missing?.

MRI calls respond_to_missing? with already symbolized version of the method name provided to respond_to?.

Here is the test case:

gem 'minitest', '~> 5.0'
require 'minitest/autorun'

class RespondToMissingTest < Minitest::Test
  class Foo
    def respond_to_missing?(method, *args)
      method == :bar
    end
  end

  def test_does_respond_to_method_symbol
    foo = Foo.new
    assert foo.respond_to?(:bar)
  end

  def test_does_respond_to_method_string
    foo = Foo.new
    assert foo.respond_to?("bar")
  end
end

Running with MRI 2.2.2 passes

$ ruby -v
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
$ ruby respond_to_missing.rb 
Run options: --seed 13929

# Running:

..

Finished in 0.001279s, 1563.8977 runs/s, 1563.8977 assertions/s.

2 runs, 2 assertions, 0 failures, 0 errors, 0 skips

Running with JRuby 1.7.20 fails

$ ruby -v
jruby 1.7.20 (1.9.3p551) 2015-05-04 3086e6a on Java HotSpot(TM) Server VM 1.7.0_76-b13 +jit [linux-i386]
$ ruby respond_to_missing.rb 
Run options: --seed 40736

# Running:

F.

Finished in 0.019000s, 105.2632 runs/s, 105.2632 assertions/s.

  1) Failure:
RespondToMissingTest#test_does_respond_to_method_string [/tmp/respond_to_missing.rb:18]:
Failed assertion, no message given.

2 runs, 2 assertions, 1 failures, 0 errors, 0 skips

Note, it also fails with JRUBY_OPTS="--2.0".

Is this a JRuby bug or just a MRI anomaly?

Kind regards,
Peter

[splattael]

Please excuse my late response.

@kares Thank you for fixing :)

I can confirm it works for 1.7.21-SNAPSHOT and 9.0.0.0-SNAPSHOT!