From bc0577c6c8607d57a13282a34c80f64fe9bf1eef Mon Sep 17 00:00:00 2001
From: glass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 9 Jan 2013 00:59:30 +0000
Subject: * load.c (load_lock): fix not to delete thread shield twice.   it may
 break the shield locked by another thread.   [Bug #7530] [ruby-core:50645]

* test/ruby/test_require.rb: a test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38744 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_require.rb | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_require.rb b/test/ruby/test_require.rb
index 410edbb276..1ff2d78697 100644
--- a/test/ruby/test_require.rb
+++ b/test/ruby/test_require.rb
@@ -604,4 +604,25 @@ class TestRequire < Test::Unit::TestCase
       }
     }
   end
+
+  def test_require_with_loaded_features_pop
+    bug7530 = '[ruby-core:50645]'
+    assert_in_out_err([], <<-INPUT, %w(:ok), [], bug7530)
+      THREADS = 2
+      ITERATIONS_PER_THREAD = 1000
+
+      $: << '.'
+      system 'touch __load_path_bench_script__.rb'
+      THREADS.times.map {
+        Thread.new do
+          ITERATIONS_PER_THREAD.times do
+            require '__load_path_bench_script__'
+            $".pop
+          end
+        end
+      }.each(&:join)
+      system 'rm __load_path_bench_script__.rb'
+      p :ok
+    INPUT
+  end
 end
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