Update to ruby/spec@691755d

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60051 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/spec/ruby/shared/fiber/resume.rb b/spec/ruby/shared/fiber/resume.rb
index 304cd88de1..a680839a4b 100644
--- a/spec/ruby/shared/fiber/resume.rb
+++ b/spec/ruby/shared/fiber/resume.rb
@@ -4,6 +4,11 @@ describe :fiber_resume, shared: true do
    fiber.send(@method).should == :fiber
   end
 
+  it "raises a FiberError if the Fiber tries to resume itself" do
+    fiber = Fiber.new { fiber.resume }
+    -> { fiber.resume }.should raise_error(FiberError, /double resume/)
+  end
+
   it "raises a FiberError if invoked from a different Thread" do
     fiber = Fiber.new { }
     lambda do