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-rw-r--r--test/ruby/test_syntax.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index 61507ecd83..895a4569fd 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -13,6 +13,11 @@ class TestSyntax < Test::Unit::TestCase
eom
end
+ def test_defined_empty_argument
+ bug8220 = '[ruby-core:53999] [Bug #8220]'
+ assert_ruby_status(%w[--disable-gem], 'puts defined? ()', bug8220)
+ end
+
def test_must_ascii_compatible
require 'tempfile'
f = Tempfile.new("must_ac_")