1 files changed, 25 insertions, 0 deletions
diff --git a/test/fiber/test_sleep.rb b/test/fiber/test_sleep.rb
index e882766345..a7e88c0367 100644
--- a/test/fiber/test_sleep.rb
+++ b/test/fiber/test_sleep.rb
@@ -43,4 +43,29 @@ class TestFiberSleep < Test::Unit::TestCase
 
     assert_operator seconds, :>=, 2, "actual: %p" % seconds
   end
+
+  def test_broken_sleep
+    thread = Thread.new do
+      Thread.current.report_on_exception = false
+
+      scheduler = Scheduler.new
+
+      def scheduler.kernel_sleep(duration = nil)
+        raise "Broken sleep!"
+      end
+
+      Fiber.set_scheduler scheduler
+
+      Fiber.schedule do
+        sleep 0
+      end
+
+    ensure
+      scheduler.close
+    end
+
+    assert_raise(RuntimeError) do
+      thread.join
+    end
+  end
 end