From 166593d625baf907c2ef23772e70071f129f4efb Mon Sep 17 00:00:00 2001
From: "Andrew N. Shalaev" <isqad88@gmail.com>
Date: Fri, 24 Apr 2020 16:45:06 +0500
Subject: [PATCH] feature: add frozen_string_literal: true comment

---
 Gemfile                                                 | 1 +
 Rakefile                                                | 1 +
 benchmarking/logging.rb                                 | 1 +
 benchmarking/pipeline.rb                                | 1 +
 benchmarking/speed.rb                                   | 1 +
 benchmarking/suite.rb                                   | 1 +
 benchmarking/worker.rb                                  | 1 +
 bin/build                                               | 1 +
 bin/console                                             | 1 +
 examples/basic.rb                                       | 1 +
 examples/consistency.rb                                 | 1 +
 examples/dist_redis.rb                                  | 1 +
 examples/incr-decr.rb                                   | 1 +
 examples/list.rb                                        | 1 +
 examples/pubsub.rb                                      | 1 +
 examples/sentinel.rb                                    | 1 +
 examples/sentinel/start                                 | 1 +
 examples/sets.rb                                        | 1 +
 examples/unicorn/config.ru                              | 1 +
 examples/unicorn/unicorn.rb                             | 1 +
 lib/redis/connection.rb                                 | 1 +
 lib/redis/connection/command_helper.rb                  | 1 +
 lib/redis/connection/hiredis.rb                         | 1 +
 lib/redis/connection/registry.rb                        | 1 +
 lib/redis/connection/ruby.rb                            | 1 +
 lib/redis/connection/synchrony.rb                       | 1 +
 lib/redis/distributed.rb                                | 1 +
 lib/redis/errors.rb                                     | 1 +
 lib/redis/hash_ring.rb                                  | 1 +
 lib/redis/pipeline.rb                                   | 1 +
 lib/redis/subscribe.rb                                  | 1 +
 lib/redis/version.rb                                    | 1 +
 redis.gemspec                                           | 1 +
 test/bitpos_test.rb                                     | 1 +
 test/blocking_commands_test.rb                          | 1 +
 test/client_test.rb                                     | 1 +
 test/command_map_test.rb                                | 1 +
 test/commands_on_geo_test.rb                            | 1 +
 test/commands_on_hashes_test.rb                         | 1 +
 test/commands_on_hyper_log_log_test.rb                  | 1 +
 test/commands_on_lists_test.rb                          | 1 +
 test/commands_on_sets_test.rb                           | 1 +
 test/commands_on_sorted_sets_test.rb                    | 1 +
 test/commands_on_strings_test.rb                        | 1 +
 test/commands_on_value_types_test.rb                    | 1 +
 test/connection_handling_test.rb                        | 1 +
 test/connection_test.rb                                 | 1 +
 test/distributed_blocking_commands_test.rb              | 1 +
 test/distributed_commands_on_hashes_test.rb             | 1 +
 test/distributed_commands_on_hyper_log_log_test.rb      | 1 +
 test/distributed_commands_on_lists_test.rb              | 1 +
 test/distributed_commands_on_sets_test.rb               | 1 +
 test/distributed_commands_on_sorted_sets_test.rb        | 1 +
 test/distributed_commands_on_strings_test.rb            | 1 +
 test/distributed_commands_on_value_types_test.rb        | 1 +
 test/distributed_commands_requiring_clustering_test.rb  | 1 +
 test/distributed_connection_handling_test.rb            | 1 +
 test/distributed_internals_test.rb                      | 1 +
 test/distributed_key_tags_test.rb                       | 1 +
 test/distributed_persistence_control_commands_test.rb   | 1 +
 test/distributed_publish_subscribe_test.rb              | 1 +
 test/distributed_remote_server_control_commands_test.rb | 1 +
 test/distributed_scripting_test.rb                      | 1 +
 test/distributed_sorting_test.rb                        | 1 +
 test/distributed_test.rb                                | 1 +
 test/distributed_transactions_test.rb                   | 1 +
 test/encoding_test.rb                                   | 1 +
 test/error_replies_test.rb                              | 1 +
 test/fork_safety_test.rb                                | 1 +
 test/helper_test.rb                                     | 1 +
 test/internals_test.rb                                  | 1 +
 test/lint/blocking_commands.rb                          | 1 +
 test/lint/hashes.rb                                     | 1 +
 test/lint/hyper_log_log.rb                              | 1 +
 test/lint/lists.rb                                      | 1 +
 test/lint/sets.rb                                       | 1 +
 test/lint/sorted_sets.rb                                | 1 +
 test/lint/strings.rb                                    | 1 +
 test/lint/value_types.rb                                | 1 +
 test/persistence_control_commands_test.rb               | 1 +
 test/pipelining_commands_test.rb                        | 1 +
 test/publish_subscribe_test.rb                          | 1 +
 test/remote_server_control_commands_test.rb             | 1 +
 test/scanning_test.rb                                   | 1 +
 test/scripting_test.rb                                  | 1 +
 test/sorting_test.rb                                    | 1 +
 test/ssl_test.rb                                        | 1 +
 test/support/connection/hiredis.rb                      | 1 +
 test/support/connection/ruby.rb                         | 1 +
 test/support/connection/synchrony.rb                    | 1 +
 test/support/redis_mock.rb                              | 1 +
 test/support/wire/synchrony.rb                          | 1 +
 test/support/wire/thread.rb                             | 1 +
 test/synchrony_driver.rb                                | 1 +
 test/thread_safety_test.rb                              | 1 +
 test/transactions_test.rb                               | 1 +
 test/unknown_commands_test.rb                           | 1 +
 test/url_param_test.rb                                  | 1 +
 98 files changed, 98 insertions(+)

diff --git a/Gemfile b/Gemfile
index 8cdf28680..dafdf4da5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 source 'https://rubygems.org'
 
 gemspec
diff --git a/Rakefile b/Rakefile
index 6ceed9722..080bebef2 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 Rake::TestTask.new 'test' do |t|
diff --git a/benchmarking/logging.rb b/benchmarking/logging.rb
index 702ee28ee..828708629 100644
--- a/benchmarking/logging.rb
+++ b/benchmarking/logging.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Run with
 #
 #   $ ruby -Ilib benchmarking/logging.rb
diff --git a/benchmarking/pipeline.rb b/benchmarking/pipeline.rb
index ecc98ba2d..f7efacaba 100644
--- a/benchmarking/pipeline.rb
+++ b/benchmarking/pipeline.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "benchmark"
 
 $:.push File.join(File.dirname(__FILE__), 'lib')
diff --git a/benchmarking/speed.rb b/benchmarking/speed.rb
index 3780bffb6..1bd07bd90 100644
--- a/benchmarking/speed.rb
+++ b/benchmarking/speed.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # Run with
 #
 #   $ ruby -Ilib benchmarking/speed.rb
diff --git a/benchmarking/suite.rb b/benchmarking/suite.rb
index 55fd1d660..87a23a2a7 100644
--- a/benchmarking/suite.rb
+++ b/benchmarking/suite.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'fileutils'
 
 def run_in_background(command)
diff --git a/benchmarking/worker.rb b/benchmarking/worker.rb
index 836d03b06..422f0317d 100644
--- a/benchmarking/worker.rb
+++ b/benchmarking/worker.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 BENCHMARK_ROOT = File.dirname(__FILE__)
 REDIS_ROOT = File.join(BENCHMARK_ROOT, "..", "lib")
 
diff --git a/bin/build b/bin/build
index 778de8643..bfb27e6a5 100755
--- a/bin/build
+++ b/bin/build
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 TARBALL = ARGV[0]
 
diff --git a/bin/console b/bin/console
index 8a3cd89ee..c2057a112 100755
--- a/bin/console
+++ b/bin/console
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 $LOAD_PATH.unshift(File.expand_path('../../lib', __FILE__))
 require 'redis'
diff --git a/examples/basic.rb b/examples/basic.rb
index 7800cf794..d97384e88 100644
--- a/examples/basic.rb
+++ b/examples/basic.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'redis'
 
 r = Redis.new
diff --git a/examples/consistency.rb b/examples/consistency.rb
index df34e1ab9..73fefc4a3 100644
--- a/examples/consistency.rb
+++ b/examples/consistency.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 # This file implements a simple consistency test for Redis-rb (or any other
 # Redis environment if you pass a different client object) where a client
 # writes to the database using INCR in order to increment keys, but actively
diff --git a/examples/dist_redis.rb b/examples/dist_redis.rb
index 94c41b3b6..4366918a4 100644
--- a/examples/dist_redis.rb
+++ b/examples/dist_redis.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "redis"
 require "redis/distributed"
 
diff --git a/examples/incr-decr.rb b/examples/incr-decr.rb
index 98ff9d15c..498aedc5f 100644
--- a/examples/incr-decr.rb
+++ b/examples/incr-decr.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'redis'
 
 r = Redis.new
diff --git a/examples/list.rb b/examples/list.rb
index b2f25cbaa..82b3901aa 100644
--- a/examples/list.rb
+++ b/examples/list.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems'
 require 'redis'
 
diff --git a/examples/pubsub.rb b/examples/pubsub.rb
index 9da15065d..bb57b4f70 100644
--- a/examples/pubsub.rb
+++ b/examples/pubsub.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "redis"
 
 puts <<-EOS
diff --git a/examples/sentinel.rb b/examples/sentinel.rb
index 62fc5a4c4..545d81649 100644
--- a/examples/sentinel.rb
+++ b/examples/sentinel.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'redis'
 
 # This example creates a master-slave setup with a sentinel, then connects to
diff --git a/examples/sentinel/start b/examples/sentinel/start
index 46567e120..4a1fd1981 100755
--- a/examples/sentinel/start
+++ b/examples/sentinel/start
@@ -1,4 +1,5 @@
 #! /usr/bin/env ruby
+# frozen_string_literal: true
 
 # This is a helper script used together with examples/sentinel.rb
 # It runs two Redis masters, two slaves for each of them, and two sentinels.
diff --git a/examples/sets.rb b/examples/sets.rb
index 31c49c38c..902cd9d09 100644
--- a/examples/sets.rb
+++ b/examples/sets.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'rubygems'
 require 'redis'
 
diff --git a/examples/unicorn/config.ru b/examples/unicorn/config.ru
index ede557351..31d0dd54c 100644
--- a/examples/unicorn/config.ru
+++ b/examples/unicorn/config.ru
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 run lambda { |env|
   [200, {"Content-Type" => "text/plain"}, [Redis.current.randomkey]]
 }
diff --git a/examples/unicorn/unicorn.rb b/examples/unicorn/unicorn.rb
index 957d3840e..1c276d554 100644
--- a/examples/unicorn/unicorn.rb
+++ b/examples/unicorn/unicorn.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "redis"
 
 worker_processes 3
diff --git a/lib/redis/connection.rb b/lib/redis/connection.rb
index d8a51b334..869c97124 100644
--- a/lib/redis/connection.rb
+++ b/lib/redis/connection.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "connection/registry"
 
 # If a connection driver was required before this file, the array
diff --git a/lib/redis/connection/command_helper.rb b/lib/redis/connection/command_helper.rb
index b1c2d0fd9..419ebe2a3 100644
--- a/lib/redis/connection/command_helper.rb
+++ b/lib/redis/connection/command_helper.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   module Connection
     module CommandHelper
diff --git a/lib/redis/connection/hiredis.rb b/lib/redis/connection/hiredis.rb
index f7baf31b6..35ecfdf99 100644
--- a/lib/redis/connection/hiredis.rb
+++ b/lib/redis/connection/hiredis.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "registry"
 require_relative "../errors"
 require "hiredis/connection"
diff --git a/lib/redis/connection/registry.rb b/lib/redis/connection/registry.rb
index 69ca63d3e..ba3d538bf 100644
--- a/lib/redis/connection/registry.rb
+++ b/lib/redis/connection/registry.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   module Connection
 
diff --git a/lib/redis/connection/ruby.rb b/lib/redis/connection/ruby.rb
index ce9411084..56a66d87d 100644
--- a/lib/redis/connection/ruby.rb
+++ b/lib/redis/connection/ruby.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "registry"
 require_relative "command_helper"
 require_relative "../errors"
diff --git a/lib/redis/connection/synchrony.rb b/lib/redis/connection/synchrony.rb
index e15fd627d..4925fef53 100644
--- a/lib/redis/connection/synchrony.rb
+++ b/lib/redis/connection/synchrony.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "command_helper"
 require_relative "registry"
 require_relative "../errors"
diff --git a/lib/redis/distributed.rb b/lib/redis/distributed.rb
index bfc65e657..f308bd410 100644
--- a/lib/redis/distributed.rb
+++ b/lib/redis/distributed.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "hash_ring"
 
 class Redis
diff --git a/lib/redis/errors.rb b/lib/redis/errors.rb
index 1483edb62..ff5fd8c9d 100644
--- a/lib/redis/errors.rb
+++ b/lib/redis/errors.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   # Base error for all redis-rb errors.
   class BaseError < RuntimeError
diff --git a/lib/redis/hash_ring.rb b/lib/redis/hash_ring.rb
index e1c93b25a..a9c0498a1 100644
--- a/lib/redis/hash_ring.rb
+++ b/lib/redis/hash_ring.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require 'zlib'
 
 class Redis
diff --git a/lib/redis/pipeline.rb b/lib/redis/pipeline.rb
index 707df2ec2..038f9fa51 100644
--- a/lib/redis/pipeline.rb
+++ b/lib/redis/pipeline.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   class Pipeline
     attr_accessor :db
diff --git a/lib/redis/subscribe.rb b/lib/redis/subscribe.rb
index 3029d048c..4c2660556 100644
--- a/lib/redis/subscribe.rb
+++ b/lib/redis/subscribe.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   class SubscribedClient
     def initialize(client)
diff --git a/lib/redis/version.rb b/lib/redis/version.rb
index 1f6803b05..4ba3a4a45 100644
--- a/lib/redis/version.rb
+++ b/lib/redis/version.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Redis
   VERSION = '4.1.3'
 end
diff --git a/redis.gemspec b/redis.gemspec
index bb93bdcce..7d8011490 100644
--- a/redis.gemspec
+++ b/redis.gemspec
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "./lib/redis/version"
 
 Gem::Specification.new do |s|
diff --git a/test/bitpos_test.rb b/test/bitpos_test.rb
index 896ad62cf..06b034eba 100644
--- a/test/bitpos_test.rb
+++ b/test/bitpos_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestBitpos < Minitest::Test
diff --git a/test/blocking_commands_test.rb b/test/blocking_commands_test.rb
index 3715db85a..6b1cf9255 100644
--- a/test/blocking_commands_test.rb
+++ b/test/blocking_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/blocking_commands'
 
diff --git a/test/client_test.rb b/test/client_test.rb
index ca451a181..163492e1d 100644
--- a/test/client_test.rb
+++ b/test/client_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestClient < Minitest::Test
diff --git a/test/command_map_test.rb b/test/command_map_test.rb
index f861ba6b2..f2bba1a6d 100644
--- a/test/command_map_test.rb
+++ b/test/command_map_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestCommandMap < Minitest::Test
diff --git a/test/commands_on_geo_test.rb b/test/commands_on_geo_test.rb
index 3c0878c62..c0a93e026 100644
--- a/test/commands_on_geo_test.rb
+++ b/test/commands_on_geo_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestCommandsGeo < Minitest::Test
diff --git a/test/commands_on_hashes_test.rb b/test/commands_on_hashes_test.rb
index e99f1b247..b90311ae6 100644
--- a/test/commands_on_hashes_test.rb
+++ b/test/commands_on_hashes_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/hashes'
 
diff --git a/test/commands_on_hyper_log_log_test.rb b/test/commands_on_hyper_log_log_test.rb
index 8625dff5c..5f9a9821c 100644
--- a/test/commands_on_hyper_log_log_test.rb
+++ b/test/commands_on_hyper_log_log_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/hyper_log_log'
 
diff --git a/test/commands_on_lists_test.rb b/test/commands_on_lists_test.rb
index 9838f5744..9c4d43f86 100644
--- a/test/commands_on_lists_test.rb
+++ b/test/commands_on_lists_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/lists'
 
diff --git a/test/commands_on_sets_test.rb b/test/commands_on_sets_test.rb
index 40dee9715..85513d90c 100644
--- a/test/commands_on_sets_test.rb
+++ b/test/commands_on_sets_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/sets'
 
diff --git a/test/commands_on_sorted_sets_test.rb b/test/commands_on_sorted_sets_test.rb
index fbdce7dab..b1c764517 100644
--- a/test/commands_on_sorted_sets_test.rb
+++ b/test/commands_on_sorted_sets_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/sorted_sets'
 
diff --git a/test/commands_on_strings_test.rb b/test/commands_on_strings_test.rb
index d3b2c274c..d88e6a538 100644
--- a/test/commands_on_strings_test.rb
+++ b/test/commands_on_strings_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/strings'
 
diff --git a/test/commands_on_value_types_test.rb b/test/commands_on_value_types_test.rb
index 5dd65257c..ff61fa13b 100644
--- a/test/commands_on_value_types_test.rb
+++ b/test/commands_on_value_types_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 require_relative "lint/value_types"
 
diff --git a/test/connection_handling_test.rb b/test/connection_handling_test.rb
index 792b166a7..df857b5e1 100644
--- a/test/connection_handling_test.rb
+++ b/test/connection_handling_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestConnectionHandling < Minitest::Test
diff --git a/test/connection_test.rb b/test/connection_test.rb
index d641ad896..a6b0bacea 100644
--- a/test/connection_test.rb
+++ b/test/connection_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestConnection < Minitest::Test
diff --git a/test/distributed_blocking_commands_test.rb b/test/distributed_blocking_commands_test.rb
index 2a2bcc477..b988e7201 100644
--- a/test/distributed_blocking_commands_test.rb
+++ b/test/distributed_blocking_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/blocking_commands'
 
diff --git a/test/distributed_commands_on_hashes_test.rb b/test/distributed_commands_on_hashes_test.rb
index b9ae2e3c3..d76de7b73 100644
--- a/test/distributed_commands_on_hashes_test.rb
+++ b/test/distributed_commands_on_hashes_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/hashes'
 
diff --git a/test/distributed_commands_on_hyper_log_log_test.rb b/test/distributed_commands_on_hyper_log_log_test.rb
index f4a68e053..404ba2d52 100644
--- a/test/distributed_commands_on_hyper_log_log_test.rb
+++ b/test/distributed_commands_on_hyper_log_log_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/hyper_log_log'
 
diff --git a/test/distributed_commands_on_lists_test.rb b/test/distributed_commands_on_lists_test.rb
index bcd4ab40d..1ccb63117 100644
--- a/test/distributed_commands_on_lists_test.rb
+++ b/test/distributed_commands_on_lists_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/lists'
 
diff --git a/test/distributed_commands_on_sets_test.rb b/test/distributed_commands_on_sets_test.rb
index b0ce4dbb5..71531d169 100644
--- a/test/distributed_commands_on_sets_test.rb
+++ b/test/distributed_commands_on_sets_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/sets'
 
diff --git a/test/distributed_commands_on_sorted_sets_test.rb b/test/distributed_commands_on_sorted_sets_test.rb
index 9ddec03df..7a641e32c 100644
--- a/test/distributed_commands_on_sorted_sets_test.rb
+++ b/test/distributed_commands_on_sorted_sets_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative 'helper'
 require_relative 'lint/sorted_sets'
 
diff --git a/test/distributed_commands_on_strings_test.rb b/test/distributed_commands_on_strings_test.rb
index 3e14f07d0..1b1a24060 100644
--- a/test/distributed_commands_on_strings_test.rb
+++ b/test/distributed_commands_on_strings_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 require_relative "lint/strings"
 
diff --git a/test/distributed_commands_on_value_types_test.rb b/test/distributed_commands_on_value_types_test.rb
index 1b665b5ee..810bfeec3 100644
--- a/test/distributed_commands_on_value_types_test.rb
+++ b/test/distributed_commands_on_value_types_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 require_relative "lint/value_types"
 
diff --git a/test/distributed_commands_requiring_clustering_test.rb b/test/distributed_commands_requiring_clustering_test.rb
index 2b7b44040..c4a047bfe 100644
--- a/test/distributed_commands_requiring_clustering_test.rb
+++ b/test/distributed_commands_requiring_clustering_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedCommandsRequiringClustering < Minitest::Test
diff --git a/test/distributed_connection_handling_test.rb b/test/distributed_connection_handling_test.rb
index a7f9c2fbc..8c9532175 100644
--- a/test/distributed_connection_handling_test.rb
+++ b/test/distributed_connection_handling_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedConnectionHandling < Minitest::Test
diff --git a/test/distributed_internals_test.rb b/test/distributed_internals_test.rb
index b82602f97..05f590b42 100644
--- a/test/distributed_internals_test.rb
+++ b/test/distributed_internals_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedInternals < Minitest::Test
diff --git a/test/distributed_key_tags_test.rb b/test/distributed_key_tags_test.rb
index 9e67fc4d0..54ad45bd6 100644
--- a/test/distributed_key_tags_test.rb
+++ b/test/distributed_key_tags_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedKeyTags < Minitest::Test
diff --git a/test/distributed_persistence_control_commands_test.rb b/test/distributed_persistence_control_commands_test.rb
index 238fb8750..f6eada2ff 100644
--- a/test/distributed_persistence_control_commands_test.rb
+++ b/test/distributed_persistence_control_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedPersistenceControlCommands < Minitest::Test
diff --git a/test/distributed_publish_subscribe_test.rb b/test/distributed_publish_subscribe_test.rb
index 6d0b77950..fa6af86f2 100644
--- a/test/distributed_publish_subscribe_test.rb
+++ b/test/distributed_publish_subscribe_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedPublishSubscribe < Minitest::Test
diff --git a/test/distributed_remote_server_control_commands_test.rb b/test/distributed_remote_server_control_commands_test.rb
index 0ea8ac67e..8947007e7 100644
--- a/test/distributed_remote_server_control_commands_test.rb
+++ b/test/distributed_remote_server_control_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedRemoteServerControlCommands < Minitest::Test
diff --git a/test/distributed_scripting_test.rb b/test/distributed_scripting_test.rb
index 435bdcd7a..a2f73fe4b 100644
--- a/test/distributed_scripting_test.rb
+++ b/test/distributed_scripting_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedScripting < Minitest::Test
diff --git a/test/distributed_sorting_test.rb b/test/distributed_sorting_test.rb
index 793533c17..f8ef0d765 100644
--- a/test/distributed_sorting_test.rb
+++ b/test/distributed_sorting_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedSorting < Minitest::Test
diff --git a/test/distributed_test.rb b/test/distributed_test.rb
index ce0a98a0d..60f7b4b61 100644
--- a/test/distributed_test.rb
+++ b/test/distributed_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributed < Minitest::Test
diff --git a/test/distributed_transactions_test.rb b/test/distributed_transactions_test.rb
index 457765eb0..e1398fff2 100644
--- a/test/distributed_transactions_test.rb
+++ b/test/distributed_transactions_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestDistributedTransactions < Minitest::Test
diff --git a/test/encoding_test.rb b/test/encoding_test.rb
index 0fd499273..1d6cd1d93 100644
--- a/test/encoding_test.rb
+++ b/test/encoding_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestEncoding < Minitest::Test
diff --git a/test/error_replies_test.rb b/test/error_replies_test.rb
index f5b4bef3b..c04d120f1 100644
--- a/test/error_replies_test.rb
+++ b/test/error_replies_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestErrorReplies < Minitest::Test
diff --git a/test/fork_safety_test.rb b/test/fork_safety_test.rb
index a1359b31d..d4fbb54da 100644
--- a/test/fork_safety_test.rb
+++ b/test/fork_safety_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestForkSafety < Minitest::Test
diff --git a/test/helper_test.rb b/test/helper_test.rb
index bfa65661e..a2c133dc2 100644
--- a/test/helper_test.rb
+++ b/test/helper_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestHelper < Minitest::Test
diff --git a/test/internals_test.rb b/test/internals_test.rb
index 4d7c0b478..e7935feca 100644
--- a/test/internals_test.rb
+++ b/test/internals_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestInternals < Minitest::Test
diff --git a/test/lint/blocking_commands.rb b/test/lint/blocking_commands.rb
index 82d43dd2c..8a85655b6 100644
--- a/test/lint/blocking_commands.rb
+++ b/test/lint/blocking_commands.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
   module BlockingCommands
     def setup
diff --git a/test/lint/hashes.rb b/test/lint/hashes.rb
index 65f36f5e7..95daf5412 100644
--- a/test/lint/hashes.rb
+++ b/test/lint/hashes.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module Hashes
diff --git a/test/lint/hyper_log_log.rb b/test/lint/hyper_log_log.rb
index f56fed8f6..eacd33e66 100644
--- a/test/lint/hyper_log_log.rb
+++ b/test/lint/hyper_log_log.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module HyperLogLog
diff --git a/test/lint/lists.rb b/test/lint/lists.rb
index 5a9fb5309..fb96c3219 100644
--- a/test/lint/lists.rb
+++ b/test/lint/lists.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module Lists
diff --git a/test/lint/sets.rb b/test/lint/sets.rb
index 41c7f9091..72204344d 100644
--- a/test/lint/sets.rb
+++ b/test/lint/sets.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module Sets
diff --git a/test/lint/sorted_sets.rb b/test/lint/sorted_sets.rb
index 827362347..eead9ee24 100644
--- a/test/lint/sorted_sets.rb
+++ b/test/lint/sorted_sets.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module SortedSets
diff --git a/test/lint/strings.rb b/test/lint/strings.rb
index b17e004c8..ce998022f 100644
--- a/test/lint/strings.rb
+++ b/test/lint/strings.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module Strings
diff --git a/test/lint/value_types.rb b/test/lint/value_types.rb
index 1c618e7d0..46ad5f2f9 100644
--- a/test/lint/value_types.rb
+++ b/test/lint/value_types.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module Lint
 
   module ValueTypes
diff --git a/test/persistence_control_commands_test.rb b/test/persistence_control_commands_test.rb
index 7f51b306d..cb1e25810 100644
--- a/test/persistence_control_commands_test.rb
+++ b/test/persistence_control_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestPersistenceControlCommands < Minitest::Test
diff --git a/test/pipelining_commands_test.rb b/test/pipelining_commands_test.rb
index 32a6a6389..e99fe9f02 100644
--- a/test/pipelining_commands_test.rb
+++ b/test/pipelining_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestPipeliningCommands < Minitest::Test
diff --git a/test/publish_subscribe_test.rb b/test/publish_subscribe_test.rb
index daddb185c..c725a1429 100644
--- a/test/publish_subscribe_test.rb
+++ b/test/publish_subscribe_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestPublishSubscribe < Minitest::Test
diff --git a/test/remote_server_control_commands_test.rb b/test/remote_server_control_commands_test.rb
index 84713cf64..a9749a506 100644
--- a/test/remote_server_control_commands_test.rb
+++ b/test/remote_server_control_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestRemoteServerControlCommands < Minitest::Test
diff --git a/test/scanning_test.rb b/test/scanning_test.rb
index 3d5f25610..20c968a41 100644
--- a/test/scanning_test.rb
+++ b/test/scanning_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestScanning < Minitest::Test
diff --git a/test/scripting_test.rb b/test/scripting_test.rb
index da58311f7..d99394f6d 100644
--- a/test/scripting_test.rb
+++ b/test/scripting_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestScripting < Minitest::Test
diff --git a/test/sorting_test.rb b/test/sorting_test.rb
index cde1a8ba0..d21871a39 100644
--- a/test/sorting_test.rb
+++ b/test/sorting_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestSorting < Minitest::Test
diff --git a/test/ssl_test.rb b/test/ssl_test.rb
index 771a2311b..d7caa8355 100644
--- a/test/ssl_test.rb
+++ b/test/ssl_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class SslTest < Minitest::Test
diff --git a/test/support/connection/hiredis.rb b/test/support/connection/hiredis.rb
index 46078c1c5..03930dd31 100644
--- a/test/support/connection/hiredis.rb
+++ b/test/support/connection/hiredis.rb
@@ -1 +1,2 @@
+# frozen_string_literal: true
 require_relative "../wire/thread"
diff --git a/test/support/connection/ruby.rb b/test/support/connection/ruby.rb
index 46078c1c5..03930dd31 100644
--- a/test/support/connection/ruby.rb
+++ b/test/support/connection/ruby.rb
@@ -1 +1,2 @@
+# frozen_string_literal: true
 require_relative "../wire/thread"
diff --git a/test/support/connection/synchrony.rb b/test/support/connection/synchrony.rb
index 90b516b5f..509674f47 100644
--- a/test/support/connection/synchrony.rb
+++ b/test/support/connection/synchrony.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "../wire/synchrony"
 
 module Helper
diff --git a/test/support/redis_mock.rb b/test/support/redis_mock.rb
index 429767b7b..b6335f8a2 100644
--- a/test/support/redis_mock.rb
+++ b/test/support/redis_mock.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "socket"
 
 module RedisMock
diff --git a/test/support/wire/synchrony.rb b/test/support/wire/synchrony.rb
index f27d4481c..db541d832 100644
--- a/test/support/wire/synchrony.rb
+++ b/test/support/wire/synchrony.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Wire < Fiber
   # We cannot run this fiber explicitly because EM schedules it. Resuming the
   # current fiber on the next tick to let the reactor do work.
diff --git a/test/support/wire/thread.rb b/test/support/wire/thread.rb
index aa5a67c92..e0c7e68fb 100644
--- a/test/support/wire/thread.rb
+++ b/test/support/wire/thread.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class Wire < Thread
   def self.sleep(sec)
     Kernel.sleep(sec)
diff --git a/test/synchrony_driver.rb b/test/synchrony_driver.rb
index 044fa9593..7c37b6fa8 100644
--- a/test/synchrony_driver.rb
+++ b/test/synchrony_driver.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require "em-synchrony"
 require "em-synchrony/connection_pool"
 
diff --git a/test/thread_safety_test.rb b/test/thread_safety_test.rb
index 820a8b54a..ac71e4865 100644
--- a/test/thread_safety_test.rb
+++ b/test/thread_safety_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestThreadSafety < Minitest::Test
diff --git a/test/transactions_test.rb b/test/transactions_test.rb
index 7923a76fe..ce700f879 100644
--- a/test/transactions_test.rb
+++ b/test/transactions_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestTransactions < Minitest::Test
diff --git a/test/unknown_commands_test.rb b/test/unknown_commands_test.rb
index 1d193b284..0d94b8c95 100644
--- a/test/unknown_commands_test.rb
+++ b/test/unknown_commands_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestUnknownCommands < Minitest::Test
diff --git a/test/url_param_test.rb b/test/url_param_test.rb
index 629be99ea..324597636 100644
--- a/test/url_param_test.rb
+++ b/test/url_param_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 require_relative "helper"
 
 class TestUrlParam < Minitest::Test