* test/ruby/test_regexp.rb: add tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16718 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 45a93c8971..52f931532b 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -669,4 +669,11 @@ class TestRegexp < Test::Unit::TestCase
     failcheck('[[:alpha:')
     failcheck('[[:alp:]]')
   end
+
+  def test_backward
+    assert_equal(3, "foobar".rindex(/b.r/i))
+    assert_equal(nil, "foovar".rindex(/b.r/i))
+    assert_equal(3, ("foo" + "bar" * 1000).rindex(/#{"bar"*1000}/))
+    assert_equal(4, ("foo\nbar\nbaz\n").rindex(/bar/i))
+  end
 end