From 83da44790b0a4099d7ea54bdeee84e605f940cd1 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 6 Oct 2015 12:40:41 +0000
Subject: * lib/tmpdir.rb (Dir.tmpdir): return duplicated string to be   modify
 safely even when $SAFE > 0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52062 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/test_tmpdir.rb | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'test')

diff --git a/test/test_tmpdir.rb b/test/test_tmpdir.rb
index 62b4abfa1a..842b2ded90 100644
--- a/test/test_tmpdir.rb
+++ b/test/test_tmpdir.rb
@@ -2,6 +2,25 @@ require 'test/unit'
 require 'tmpdir'
 
 class TestTmpdir < Test::Unit::TestCase
+  def test_tmpdir_modifiable
+    tmpdir = Dir.tmpdir
+    assert_equal(false, tmpdir.frozen?)
+    tmpdir_org = tmpdir.dup
+    tmpdir << "foo"
+    assert_equal(tmpdir_org, Dir.tmpdir)
+  end
+
+  def test_tmpdir_modifiable_safe
+    Thread.new {
+      $SAFE = 1
+      tmpdir = Dir.tmpdir
+      assert_equal(false, tmpdir.frozen?)
+      tmpdir_org = tmpdir.dup
+      tmpdir << "foo"
+      assert_equal(tmpdir_org, Dir.tmpdir)
+    }.join
+  end
+
   def test_world_writable
     skip "no meaning on this platform" if /mswin|mingw/ =~ RUBY_PLATFORM
     Dir.mktmpdir do |tmpdir|
-- 
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