From: Brian Ford <redmine@...>
Date: 2009-01-20T05:49:21+09:00
Subject: [ruby-core:21442] [Bug #1024] Array#zip does not convert arguments to arrays

Bug #1024: Array#zip does not convert arguments to arrays
http://redmine.ruby-lang.org/issues/show/1024

Author: Brian Ford
Status: Open, Priority: Normal
Target version: 1.9.x

The RDoc for Array#zip states that it "Converts any arguments to arrays...", however it does not appear to do so.

euler:rubyspec brian$ cat array_zip.rb 
ary = Object.new

def ary.to_a;   [1, 2]; end
def ary.to_ary; [3, 4]; end

p [5, 6].zip(ary)

euler:rubyspec brian$ multiruby -vw array_zip.rb                         

VERSION = mri_1_9
CMD     = ~/.multiruby/install/mri_1_9/bin/ruby -vw array_zip.rb

ruby 1.9.1p5000 (2009-01-20 trunk 21676) [i386-darwin9.6.0]
array_zip.rb:6:in `zip': undefined method `each' for #<Object:0x3d6be8> (NoMethodError)
        from array_zip.rb:6:in `<main>'

RESULT = 256

VERSION = mri_rel_1_8_6
CMD     = ~/.multiruby/install/mri_rel_1_8_6/bin/ruby -vw array_zip.rb

ruby 1.8.6 (2009-01-19 patchlevel 303) [i686-darwin9.6.0]
[[5, 3], [6, 4]]

RESULT = 0

VERSION = mri_rel_1_8_7
CMD     = ~/.multiruby/install/mri_rel_1_8_7/bin/ruby -vw array_zip.rb

ruby 1.8.7 (2009-01-19 patchlevel 89) [i686-darwin9.6.0]
[[5, 3], [6, 4]]

RESULT = 0

VERSION = 1.8.6-p114
CMD     = ~/.multiruby/install/1.8.6-p114/bin/ruby -vw array_zip.rb

ruby 1.8.6 (2008-03-03 patchlevel 114) [i686-darwin9.5.0]
[[5, 3], [6, 4]]

RESULT = 0

TOTAL RESULT = 1 failures out of 4

Passed: mri_rel_1_8_6, mri_rel_1_8_7, 1.8.6-p114
Failed: mri_1_9


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