Update to ruby/spec@83063a3

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62094 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/ruby/core/thread/backtrace_spec.rb b/spec/ruby/core/thread/backtrace_spec.rb
index a20fdee956..532d7a8f4e 100644
--- a/spec/ruby/core/thread/backtrace_spec.rb
+++ b/spec/ruby/core/thread/backtrace_spec.rb
@@ -24,4 +24,12 @@ describe "Thread#backtrace" do
     t.join
     t.backtrace.should == nil
   end
+
+  it "returns an array (which may be empty) immediately after the thread is created" do
+    t = Thread.new { sleep }
+    backtrace = t.backtrace
+    t.kill
+    t.join
+    backtrace.should be_kind_of(Array)
+  end
 end