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-rw-r--r--test/pathname/test_pathname.rb1
-rw-r--r--test/test_pp.rb1
-rw-r--r--test/test_prettyprint.rb1
3 files changed, 3 insertions, 0 deletions
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 339ef7f487..94bcc90bf0 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -1,3 +1,4 @@
+#
# -*- frozen_string_literal: true -*-
require 'test/unit'
diff --git a/test/test_pp.rb b/test/test_pp.rb
index 69594c0aef..70390c7559 100644
--- a/test/test_pp.rb
+++ b/test/test_pp.rb
@@ -1,3 +1,4 @@
+#
# -*- frozen_string_literal: true -*-
require 'pp'
diff --git a/test/test_prettyprint.rb b/test/test_prettyprint.rb
index 0d087b4a78..30b00095d9 100644
--- a/test/test_prettyprint.rb
+++ b/test/test_prettyprint.rb
@@ -1,3 +1,4 @@
+#
# -*- frozen_string_literal: true -*-
require 'prettyprint'