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-rw-r--r--activesupport/test/logger_test.rb6
1 files changed, 4 insertions, 2 deletions
diff --git a/activesupport/test/logger_test.rb b/activesupport/test/logger_test.rb
index 3f04783401..5efbd10a7d 100644
--- a/activesupport/test/logger_test.rb
+++ b/activesupport/test/logger_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require "abstract_unit"
require "multibyte_test_helpers"
require "stringio"
@@ -37,7 +39,7 @@ class LoggerTest < ActiveSupport::TestCase
logger = Logger.new f
logger.level = Logger::DEBUG
- str = "\x80"
+ str = "\x80".dup
str.force_encoding("ASCII-8BIT")
logger.add Logger::DEBUG, str
@@ -55,7 +57,7 @@ class LoggerTest < ActiveSupport::TestCase
logger = Logger.new f
logger.level = Logger::DEBUG
- str = "\x80"
+ str = "\x80".dup
str.force_encoding("ASCII-8BIT")
logger.add Logger::DEBUG, str