From d432839cbdefc792adce02f9ea759bb2bb3249fd Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 13 Nov 2016 05:25:53 +0000
Subject: error.c: rb_get_backtrace

* error.c (rb_get_backtrace): move from eval_error.c to call
  exc_backtrace directly.  [ruby-core:78097] [Bug #12925]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56766 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_exception.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 91d3ac1e93..32918df16d 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -952,4 +952,17 @@ $stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status|
       ::Warning.warn "\x00a\x00b\x00c".force_encoding("utf-16be")
     end
   end
+
+  def test_undefined_backtrace
+    assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
+    begin;
+      class Exception
+        undef backtrace
+      end
+
+      assert_raise(RuntimeError) {
+        raise RuntimeError, "hello"
+      }
+    end;
+  end
 end
-- 
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