From 71a3cb13eb588abca4833b2a34d48681de90b9fe Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 6 Jun 2014 04:39:37 +0000
Subject: io.c: not shorten buffer unless succeeded

* io.c (io_setstrbuf, io_read): should not shorten the given buffer until
  read succeeds.  [ruby-core:55951] [Bug #8625]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46360 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_io.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test/ruby/test_io.rb')

diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index dca78603c7..fab142a5ee 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1230,6 +1230,14 @@ class TestIO < Test::Unit::TestCase
       t.value
       assert_equal("", s)
     end
+    with_pipe do |r, w|
+      s = "xxx"
+      t = Thread.new {r.read(2, s)}
+      Thread.pass until t.stop?
+      t.kill
+      t.value
+      assert_equal("xxx", s)
+    end
   end
 
   def test_write_nonblock
-- 
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