1 files changed, 9 insertions, 0 deletions
diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index 7b513a11fa..6cb76d98d8 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -378,4 +378,13 @@ class TestFiber < Test::Unit::TestCase
     assert_match(/terminated/, f.to_s)
     assert_match(/resumed/, Fiber.current.to_s)
   end
+
+  def assert_create_fiber_in_new_thread
+    ret = Thread.new{
+      Thread.new{
+        Fiber.new{Fiber.yield :ok}.resume
+      }.join
+    }.join
+    assert_euqal :ok, ret, '[Bug #14642]'
+  end
 end