1 files changed, 9 insertions, 1 deletions
diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index c99e302b19..6c67a5815d 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -116,7 +116,15 @@ class TestFiber < Test::Unit::TestCase
     f2 = Fiber.new do
       c.call
     end
-    assert_equal(f1.yield, :ok)
+    assert_equal(:ok, f1.yield)
+
+    assert_equal(:ok,
+      callcc {|c|
+        Fiber.new {
+          c.call :ok
+        }.yield
+      }
+    )
   end
 end