From 90425153fbd26f9e5bdaa0a2df805b2a37350e9b Mon Sep 17 00:00:00 2001
From: kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 10 Sep 2013 23:21:17 +0000
Subject: * thread.c (rb_mutex_unlock): Mutex#unlock no longer raise   an
 exception even if uses on trap. [Bug #8891]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42906 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_thread.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

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

diff --git a/test/ruby/test_thread.rb b/test/ruby/test_thread.rb
index dd13842bfe..bc3c025253 100644
--- a/test/ruby/test_thread.rb
+++ b/test/ruby/test_thread.rb
@@ -849,6 +849,23 @@ Thread.new(Thread.current) {|mth|
     end
   end
 
+  def test_mutex_unlock_on_trap
+    assert_in_out_err([], <<-INPUT, %w(locked unlocked false), [])
+      m = Mutex.new
+
+      Signal.trap("INT") { |signo|
+        m.unlock
+        puts "unlocked"
+      }
+
+      m.lock
+      puts "locked"
+      Process.kill("INT", $$)
+      sleep 0.01
+      puts m.locked?
+    INPUT
+  end
+
   def invoke_rec script, vm_stack_size, machine_stack_size, use_length = true
     env = {}
     env['RUBY_THREAD_VM_STACK_SIZE'] = vm_stack_size.to_s if vm_stack_size
-- 
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