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-rw-r--r--test/ruby/test_regexp.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index dce5792954..bd10ad5395 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -391,6 +391,7 @@ class TestRegexp < Test::Unit::TestCase
assert_raise(RegexpError) { Regexp.new(")(") }
assert_raise(RegexpError) { Regexp.new('[\\40000000000') }
assert_raise(RegexpError) { Regexp.new('[\\600000000000.') }
+ assert_raise(RegexpError) { Regexp.new("((?<v>))\\g<0>") }
end
def test_unescape