From 6602bc193b378f832e52f446df8804efafd5dfb8 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 30 Nov 2015 12:19:43 +0000
Subject: merge revision(s) 52745: [Backport #11738]

	* io.c (argf_getpartial): should not resize str if the second
	  argument is not given.
	  [ruby-core:71668] [Bug #11738]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@52800 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_argf.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_argf.rb b/test/ruby/test_argf.rb
index fb869561a1..104a681ee0 100644
--- a/test/ruby/test_argf.rb
+++ b/test/ruby/test_argf.rb
@@ -504,6 +504,17 @@ class TestArgf < Test::Unit::TestCase
     end
   end
 
+  def test_readpartial_eof_twice
+    ruby('-W1', '-e', <<-SRC, @t1.path) do |f|
+      $stderr = $stdout
+      print ARGF.readpartial(256)
+      ARGF.readpartial(256) rescue p($!.class)
+      ARGF.readpartial(256) rescue p($!.class)
+    SRC
+      assert_equal("1\n2\nEOFError\nEOFError\n", f.read)
+    end
+  end
+
   def test_getc
     ruby('-e', <<-SRC, @t1.path, @t2.path, @t3.path) do |f|
       s = ""
-- 
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