1 files changed, 15 insertions, 1 deletions
diff --git a/mrbgems/mruby-fiber/test/fiber.rb b/mrbgems/mruby-fiber/test/fiber.rb
index 8838208f6..c09b49925 100644
--- a/mrbgems/mruby-fiber/test/fiber.rb
+++ b/mrbgems/mruby-fiber/test/fiber.rb
@@ -96,8 +96,22 @@ assert('Recursive resume of Fiber') do
     f1.resume
     Fiber.yield 0
   }
-  assert_equal 0, f2.resume
+  f3 = Fiber.new {
+    f2.resume
+  }
+  assert_equal 0, f3.resume
   f2.resume
   assert_false f1.alive?
   assert_false f2.alive?
+  assert_false f3.alive?
+end
+
+assert('Root fiber resume') do
+  root = Fiber.current
+  assert_raise(RuntimeError) { root.resume }
+  f = Fiber.new {
+    assert_raise(RuntimeError) { root.resume }
+  }
+  f.resume
+  assert_false f.alive?
 end