Cleaning a few lines

config/environments/test.rb

@@ -4,14 +4,7 @@ Rails.application.configure do
   # Some tests require the following languages (en, es, fr, nl, pt-BR)
   # so we override the available languages for the test environment.
   config.i18n.default_locale = :en
-  available_locales = [
-    "en",
-    "es",
-    "fr",
-    "nl",
-    "pt-BR"
-  ]
-  config.i18n.available_locales = available_locales
+  config.i18n.available_locales = %w[de en es fr nl pt-BR zh-CN]
 
   # The test environment is used exclusively to run your application's
   # test suite. You never need to work with it otherwise. Remember that

spec/rails_helper.rb

@@ -13,7 +13,6 @@ require "capybara/rspec"
 require "selenium/webdriver"
 
 Rails.application.load_tasks if Rake::Task.tasks.empty?
-I18n.default_locale = :en
 
 include Warden::Test::Helpers
 Warden.test_mode!