From a9afb7e5c6c608ba8e996dd5771b1da38ef8a9b3 Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 3 Nov 2010 17:08:25 +0000
Subject: * cont.c (rb_fiber_resume): raise an "double resume" error when root 
  fiber is going to be resumed.  [ruby-dev:42523]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29680 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_fiber.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index edfe55a1d3..ec64f98229 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -189,5 +189,13 @@ class TestFiber < Test::Unit::TestCase
       f1.transfer
     }, '[ruby-dev:40833]'
   end
+
+  def test_resume_root_fiber
+    assert_raise(FiberError) do
+      Thread.new do
+        Fiber.current.resume
+      end.join
+    end
+  end
 end
 
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