From: ts <decoux@...>
Date: 2008-04-24T19:36:28+09:00
Subject: Re: Action Item: RubySpec failures on Ruby 1.8.7

Vladimir Sizikov wrote:

 Well I've a problem with some tests, for example

> 45) IO#each_byte raises IOError on closed stream FAILED
> Expected IOError but no exception was raised

 it work as expected if you write it like this

vgs% ./ruby -ve 'a = File.open("ruby") {|f| f}; a.each_byte {}'
ruby 1.8.7 (2008-04-23 patchlevel 5000) [i686-linux]
-e:1:in `each_byte': closed stream (IOError)
	from -e:1
vgs% 

 but with

vgs% ./ruby -ve 'a = File.open("ruby") {|f| f}; b = a.each_byte; p b; b.next'
ruby 1.8.7 (2008-04-23 patchlevel 5000) [i686-linux]
#<Enumerable::Enumerator:0xb7d39fe8>
/home/ts/local/r18/lib/ruby/1.8/generator.rb:188: warning: method redefined; discarding old next
/home/ts/local/r18/lib/ruby/1.8/generator.rb:200: warning: method redefined; discarding old rewind
/home/ts/local/r18/lib/ruby/1.8/generator.rb:72:in `each_byte': closed stream (IOError)
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:72:in `each'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:72:in `initialize'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:83:in `call'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:83:in `initialize'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:170:in `new'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:170:in `__generator'
	from /home/ts/local/r18/lib/ruby/1.8/generator.rb:189:in `next'
	from -e:1
vgs% 


 ruby give an error but only when you call #next *not* when it
 return an Enumerator object.


Guy Decoux