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-rw-r--r--test/psych/test_psych.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/test/psych/test_psych.rb b/test/psych/test_psych.rb
index 24030d5..d0de956 100644
--- a/test/psych/test_psych.rb
+++ b/test/psych/test_psych.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
require_relative 'helper'
require 'stringio'
@@ -84,7 +84,7 @@ class TestPsych < Psych::TestCase
def test_dump_io
hash = {'hello' => 'TGIF!'}
- stringio = StringIO.new ''
+ stringio = StringIO.new ''.dup
assert_equal stringio, Psych.dump(hash, stringio)
assert_equal Psych.dump(hash), stringio.string
end