6 files changed, 6 insertions, 0 deletions
diff --git a/actioncable/test/channel/base_test.rb b/actioncable/test/channel/base_test.rb
index 9a3a3581e6..afefbaf076 100644
--- a/actioncable/test/channel/base_test.rb
+++ b/actioncable/test/channel/base_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/broadcasting_test.rb b/actioncable/test/channel/broadcasting_test.rb
index 3476c1db31..9062a244e4 100644
--- a/actioncable/test/channel/broadcasting_test.rb
+++ b/actioncable/test/channel/broadcasting_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/naming_test.rb b/actioncable/test/channel/naming_test.rb
index 08f0e7be48..b6ac7cfd42 100644
--- a/actioncable/test/channel/naming_test.rb
+++ b/actioncable/test/channel/naming_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 
 class ActionCable::Channel::NamingTest < ActiveSupport::TestCase
diff --git a/actioncable/test/channel/periodic_timers_test.rb b/actioncable/test/channel/periodic_timers_test.rb
index 17a8e45a35..02945a2eed 100644
--- a/actioncable/test/channel/periodic_timers_test.rb
+++ b/actioncable/test/channel/periodic_timers_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/rejection_test.rb b/actioncable/test/channel/rejection_test.rb
index 99c4a7603a..989ecef1f1 100644
--- a/actioncable/test/channel/rejection_test.rb
+++ b/actioncable/test/channel/rejection_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
diff --git a/actioncable/test/channel/stream_test.rb b/actioncable/test/channel/stream_test.rb
index 50fc7be30b..14b5d24fbd 100644
--- a/actioncable/test/channel/stream_test.rb
+++ b/actioncable/test/channel/stream_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"