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-rw-r--r--tests/json_encoding_test.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/json_encoding_test.rb b/tests/json_encoding_test.rb
index d983e12..29ae02e 100644
--- a/tests/json_encoding_test.rb
+++ b/tests/json_encoding_test.rb
@@ -1,4 +1,5 @@
# encoding: utf-8
+#frozen_string_literal: false
require 'test_helper'
class JSONEncodingTest < Test::Unit::TestCase