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-rw-r--r--test/ruby/test_regexp.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index fabeab1fec..b0a9eb2c16 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -583,6 +583,9 @@ class TestRegexp < Test::Unit::TestCase
failcheck('(?<!.*)')
check(/(?<=A|B.)C/, [%w(C AC), %w(C BXC)], %w(C BC))
check(/(?<!A|B.)C/, [%w(C C), %w(C BC)], %w(AC BXC))
+
+ assert_not_match(/(?<!aa|b)c/i, "Aac")
+ assert_not_match(/(?<!b|aa)c/i, "Aac")
end
def test_parse_kg