* backport r33177 from trunk.

* test/ruby/test_fiber.rb (TestFiber#test_no_valid_cfp):
  add a test. Unlike TestThread#test_no_valid_cfp,
  this test succeeds even if win32ole is required (see r33153).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@33178 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index e3e40566f8..ed7ecc71ae 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -208,5 +208,17 @@ class TestFiber < Test::Unit::TestCase
       GC.start
     }, bug4612
   end
+
+  def test_no_valid_cfp
+    bug5083 = '[ruby-dev:44208]'
+    error = assert_raise(RuntimeError) do
+      Fiber.new(&Module.method(:nesting)).resume
+    end
+    assert_equal("Can't call on top of Fiber or Thread", error.message, bug5083)
+    error = assert_raise(RuntimeError) do
+      Fiber.new(&Module.method(:undef_method)).resume(:to_s)
+    end
+    assert_equal("Can't call on top of Fiber or Thread", error.message, bug5083)
+  end
 end