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-rw-r--r--test/ruby/test_string.rb7
1 files changed, 6 insertions, 1 deletions
diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index c7f4521e27..b90c620381 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -2420,7 +2420,12 @@ CODE
end
assert_equal(["\u30E6\u30FC\u30B6", "@", "\u30C9\u30E1.\u30A4\u30F3"],
- "\u30E6\u30FC\u30B6@\u30C9\u30E1.\u30A4\u30F3".partition(/[@.]/))
+ "\u30E6\u30FC\u30B6@\u30C9\u30E1.\u30A4\u30F3".partition(/[@.]/))
+
+ bug = '[ruby-core:82911]'
+ hello = "hello"
+ hello.partition("hi").map(&:upcase!)
+ assert_equal("hello", hello, bug)
end
def test_rpartition