From df1c035d0381e41a78ebc55b0450bab39b542cf2 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 13 Jul 2020 21:39:32 +0900
Subject: [ruby/tmpdir] Test "not writable" case

https://github.com/ruby/tmpdir/commit/84684d80f9
---
 test/test_tmpdir.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/test_tmpdir.rb b/test/test_tmpdir.rb
index 45342c4225..7cee2e1d9f 100644
--- a/test/test_tmpdir.rb
+++ b/test/test_tmpdir.rb
@@ -27,6 +27,8 @@ class TestTmpdir < Test::Unit::TestCase
           File.unlink(tmpdirx)
           ENV[e] = tmpdir
           assert_equal(tmpdir, Dir.tmpdir)
+          File.chmod(0555, tmpdir)
+          assert_not_equal(tmpdir, Dir.tmpdir)
           File.chmod(0777, tmpdir)
           assert_not_equal(tmpdir, Dir.tmpdir)
           newdir = Dir.mktmpdir("d", tmpdir) do |dir|
-- 
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