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-rw-r--r--test/ruby/test_m17n.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/ruby/test_m17n.rb b/test/ruby/test_m17n.rb
index a6e2d3c92a..e933475997 100644
--- a/test/ruby/test_m17n.rb
+++ b/test/ruby/test_m17n.rb
@@ -1613,4 +1613,9 @@ class TestM17N < Test::Unit::TestCase
assert_same(str, str.scrub!)
assert_equal("\uFFFD\uFFFD\uFFFD", str)
end
+
+ def test_greek_capital_gap
+ bug12204 = '[ruby-core:74478] [Bug #12204] GREEK CAPITAL RHO and SIGMA'
+ assert_equal("\u03A3", "\u03A1".succ, bug12204)
+ end
end