1 files changed, 7 insertions, 7 deletions
diff --git a/test/openssl/test_pair.rb b/test/openssl/test_pair.rb
index 08c15a0f75..e9cf98df15 100644
--- a/test/openssl/test_pair.rb
+++ b/test/openssl/test_pair.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require_relative 'utils'
 require_relative 'ut_eof'
 
@@ -128,11 +128,11 @@ module OpenSSL::TestPairM
     ssl_pair {|s1, s2|
       s2.write "a\nbcd"
       assert_equal("a\n", s1.gets)
-      result = ""
+      result = String.new
       result << s1.readpartial(10) until result.length == 3
       assert_equal("bcd", result)
       s2.write "efg"
-      result = ""
+      result = String.new
       result << s1.readpartial(10) until result.length == 3
       assert_equal("efg", result)
       s2.close
@@ -242,22 +242,22 @@ module OpenSSL::TestPairM
   def test_read_with_outbuf
     ssl_pair { |s1, s2|
       s1.write("abc\n")
-      buf = ""
+      buf = String.new
       ret = s2.read(2, buf)
       assert_same ret, buf
       assert_equal "ab", ret
 
-      buf = "garbage"
+      buf = +"garbage"
       ret = s2.read(2, buf)
       assert_same ret, buf
       assert_equal "c\n", ret
 
-      buf = "garbage"
+      buf = +"garbage"
       assert_equal :wait_readable, s2.read_nonblock(100, buf, exception: false)
       assert_equal "", buf
 
       s1.close
-      buf = "garbage"
+      buf = +"garbage"
       assert_equal nil, s2.read(100, buf)
       assert_equal "", buf
     }