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-rw-r--r--test/-ext-/bignum/test_big2str.rb1
-rw-r--r--test/-ext-/bignum/test_bigzero.rb1
-rw-r--r--test/-ext-/bignum/test_div.rb1
-rw-r--r--test/-ext-/bignum/test_mul.rb1
-rw-r--r--test/-ext-/bignum/test_pack.rb1
-rw-r--r--test/-ext-/bignum/test_str2big.rb1
6 files changed, 6 insertions, 0 deletions
diff --git a/test/-ext-/bignum/test_big2str.rb b/test/-ext-/bignum/test_big2str.rb
index 0af552ea709..4fae24eb345 100644
--- a/test/-ext-/bignum/test_big2str.rb
+++ b/test/-ext-/bignum/test_big2str.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"
diff --git a/test/-ext-/bignum/test_bigzero.rb b/test/-ext-/bignum/test_bigzero.rb
index f75c4590b86..8529e54456b 100644
--- a/test/-ext-/bignum/test_bigzero.rb
+++ b/test/-ext-/bignum/test_bigzero.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"
diff --git a/test/-ext-/bignum/test_div.rb b/test/-ext-/bignum/test_div.rb
index 9c1a3c3d2a9..9a8e93b0815 100644
--- a/test/-ext-/bignum/test_div.rb
+++ b/test/-ext-/bignum/test_div.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"
diff --git a/test/-ext-/bignum/test_mul.rb b/test/-ext-/bignum/test_mul.rb
index 3e78247aa45..103a00fbad2 100644
--- a/test/-ext-/bignum/test_mul.rb
+++ b/test/-ext-/bignum/test_mul.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"
diff --git a/test/-ext-/bignum/test_pack.rb b/test/-ext-/bignum/test_pack.rb
index f2a3df814e0..04bf3e02de1 100644
--- a/test/-ext-/bignum/test_pack.rb
+++ b/test/-ext-/bignum/test_pack.rb
@@ -1,4 +1,5 @@
# coding: ASCII-8BIT
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"
diff --git a/test/-ext-/bignum/test_str2big.rb b/test/-ext-/bignum/test_str2big.rb
index 4304be88e9f..3b5750154ea 100644
--- a/test/-ext-/bignum/test_str2big.rb
+++ b/test/-ext-/bignum/test_str2big.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"