# \[Bug #493\] Failure: test\_dup(TestIO)

**URL:** <https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783>\
**Category:** Development\
**Created:** [August 25, 2008, 12:57pm UTC](https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783 "2008-08-25T12:57:06Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [August 25, 2008, 12:57pm UTC](https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783/1 "2008-08-25T12:57:06Z")

</div>

Bug #493: Failure: test\_dup(TestIO)  
[http://redmine.ruby-lang.org/issues/show/493](http://redmine.ruby-lang.org/issues/show/493)

e$B5/I\<\<Te(B: Kazuhiro NISHIYAMA  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

ruby 1.9.0 (2008-08-25 revision 18832) [i686-linux]  
e$B$He(BUbuntu  
8.04.1e$B$N4D6-$Ge(Btest-alle$B$G0J2\<$Ne(BFailuree$B$,H/@8$7$^$9!#e(B  
test/ruby/test\_io.rbe$BC1FH$@$H5/$-$J$$$h$&$G$9!#e(B

1. Failure:  
test\_dup(TestIO)  
[/home/kazu/wc/ruby-lang/trunk/test/ruby/test\_io.rb:640:in `block in test_dup' /home/kazu/wc/ruby-lang/trunk/test/ruby/test_io.rb:585:in `rescue  
in pipe2’  
/home/kazu/wc/ruby-lang/trunk/test/ruby/test\_io.rb:591:in `pipe2' /home/kazu/wc/ruby-lang/trunk/test/ruby/test_io.rb:639:in `test\_dup’]:  
\<[Errno::EMFILE, Errno::ENFILE, Errno::NOERROR]\> exception expected but  
none was thrown.

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<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [September 7, 2008, 6:20am UTC](https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783/2 "2008-09-07T06:20:52Z")

</div>

e$B%A%1%C%He(B #493 e$B$,99?7$5$l$^$7$?!#e(B (by zunda an)

Momonga 4e$B$Ne(B  
ruby 1.9.0 (2008-09-07 revision 19208) [i686-linux]  
e$B$G$bH/@8$7$^$7$?!#e(B

Momonga 4e$B$Ne(B  
ruby 1.9.0 (2008-09-07 revision 19208) [x86\_64-linux]  
e$B$G$OH/@8$7$^$;$s$G$7$?!#e(B

* * *

[http://redmine.ruby-lang.org/issues/show/493](http://redmine.ruby-lang.org/issues/show/493)

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<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [September 8, 2008, 6:50am UTC](https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783/3 "2008-09-08T06:50:22Z")

</div>

e$B%A%1%C%He(B #493 e$B$,99?7$5$l$^$7$?!#e(B (by Kazuhiro NISHIYAMA)

e$BC4Ev\<Te(B e$B:o=|e(B (Kazuhiro NISHIYAMA)

test\_dupe$B$Ne(Bpipe2e$B$NA0$G!"%V%m%C%/$NCf$Ge(Bopene$B$9$k$He(B  
ruby-trunk test/ruby/test\_io.rb -n /test\_dup/  
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e$BE,Ev$Ke(BGC.starte$B$7$F$b8=\>]$OJQ$o$i$:!"e(Bopene$B$7$?$b$N$r$A$c$s$He(Bclosee$B$9$l$Pe(B  
e$B%F%9%H$,DL$k$h$&$K$J$k$N$G!“e(BFilee$B$N%U%!%$%J%i%$%6$N=hM}$KLdBj$,$”$k$N$G$Oe(B  
e$B$J$$$+$H;W$$$^$9!#e(B

## e$B$3$l0J\>e$O$o$+$i$J$$$N$GC4Ev\<T$O6u$KLa$7$F$\*$-$^$9!#e(B

[http://redmine.ruby-lang.org/issues/show/493](http://redmine.ruby-lang.org/issues/show/493)

---

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [September 17, 2008, 12:27pm UTC](https://www.ruby-forum.com/t/bug-493-failure-test-dup-testio/146783/4 "2008-09-17T12:27:38Z")

</div>

e$B%A%1%C%He(B #493 e$B$,99?7$5$l$^$7$?!#e(B (by Anonymous)

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e$B?JD=e(B % 0e$B$+$ie(B100e$B$KJQ99e(B

## Applied in changeset r19396.

[http://redmine.ruby-lang.org/issues/show/493](http://redmine.ruby-lang.org/issues/show/493)