From 4920980d17f0dce5e338513d1ae75fa2c4bf9c83 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 18 Jan 2008 18:48:12 +0000
Subject: * thread.c (thread_create_core): prohibit thread creation in the  
 frozen thread group.  a patch in [ruby-dev:33176] from sheepman   <sheepman
 AT sheepman.sakura.ne.jp>.

* thread.c (thread_create_core): should inherit ThreadGroup from
  the current thread.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15118 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_thread.rb | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_thread.rb b/test/ruby/test_thread.rb
index 0d924eea57..b5db362df4 100644
--- a/test/ruby/test_thread.rb
+++ b/test/ruby/test_thread.rb
@@ -22,3 +22,36 @@ class TestThread < Test::Unit::TestCase
   end
 end
 
+class TestThreadGroup < Test::Unit::TestCase
+  def test_thread_init
+    thgrp = ThreadGroup.new
+    Thread.new{
+      thgrp.add(Thread.current)
+      assert_equal(thgrp, Thread.new{sleep 1}.group)
+    }.join
+  end
+
+  def test_frozen_thgroup
+    thgrp = ThreadGroup.new
+    Thread.new{
+      thgrp.add(Thread.current)
+      thgrp.freeze
+      assert_raise(ThreadError) do
+        Thread.new{1}.join
+      end
+    }.join
+  end
+
+  def test_enclosed_thgroup
+    thgrp = ThreadGroup.new
+    thgrp.enclose
+    Thread.new{
+      assert_raise(ThreadError) do
+        thgrp.add(Thread.current)
+      end
+      assert_nothing_raised do
+        Thread.new{1}.join
+      end
+    }.join
+  end
+end
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