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1b86d90136
rails/actionmailer/test
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yuuji.yaginuma 1b86d90136 Enable Performance/UnfreezeString cop 
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.

```ruby
# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "benchmark-ips"
end

Benchmark.ips do |x|
  x.report('+@') { +"" }
  x.report('dup') { "".dup }
  x.compare!
end
```

```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
                  +@   282.289k i/100ms
                 dup   187.638k i/100ms
Calculating -------------------------------------
                  +@      6.775M (± 3.6%) i/s -     33.875M in   5.006253s
                 dup      3.320M (± 2.2%) i/s -     16.700M in   5.032125s

Comparison:
                  +@:  6775299.3 i/s
                 dup:  3320400.7 i/s - 2.04x  slower

```
2018-09-23 08:56:55 +09:00
..
fixtures Expand on Action Mailer Fragment caching tests 2016-04-17 23:16:09 +05:30
mailers Skip delivery notification when perform_deliveries is false. 2018-09-08 17:29:28 +09:00
abstract_unit.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
assert_select_email_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
asset_host_test.rb Do not generate default alt text in image tags 2017-08-17 16:13:15 -04:00
base_test.rb Enable Performance/UnfreezeString cop 2018-09-23 08:56:55 +09:00
caching_test.rb Replace assert ! with assert_not 2018-04-19 08:11:33 -04:00
delivery_methods_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
i18n_with_controller_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
log_subscriber_test.rb Add perform_deliveries to a payload of deliver.action_mailer notification. 2018-09-09 20:17:36 +09:00
mail_helper_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
mail_layout_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
message_delivery_test.rb Enable Layout/SpaceBeforeComma rubocop rule, and fixed more 2017-12-12 20:00:50 +09:00
parameterized_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
test_case_test.rb Use frozen string literal in actionmailer/ 2017-07-23 18:17:19 +03:00
test_helper_test.rb Fix the obvious typos detected by github.com/client9/misspell 2018-08-08 21:55:46 +09:00
url_test.rb Enable Layout/SpaceBeforeComma rubocop rule, and fixed more 2017-12-12 20:00:50 +09:00