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# frozen_string_literal: true
require "isolation/abstract_unit"
module ApplicationTests
class I18nTest < ActiveSupport::TestCase
include ActiveSupport::Testing::Isolation
def setup
build_app
FileUtils.rm_rf "#{app_path}/config/environments"
require "rails/all"
end
def teardown
teardown_app
end
def load_app
require "#{app_path}/config/environment"
end
def app
@app ||= Rails.application
end
def assert_fallbacks(fallbacks)
fallbacks.each do |locale, expected|
actual = I18n.fallbacks[locale]
assert_equal expected, actual, "expected fallbacks for #{locale.inspect} to be #{expected.inspect}, but were #{actual.inspect}"
end
end
def assert_no_fallbacks
assert_not_includes I18n.backend.class.included_modules, I18n::Backend::Fallbacks
end
# Locales
test "setting another default locale" do
add_to_config <<-RUBY
config.i18n.default_locale = :de
RUBY
load_app
assert_equal :de, I18n.default_locale
end
# Load paths
test "no config locales directory present should return empty load path" do
FileUtils.rm_rf "#{app_path}/config/locales"
load_app
assert_equal [], Rails.application.config.i18n.load_path
end
test "locale files should be added to the load path" do
app_file "config/another_locale.yml", "en:\nfoo: ~"
add_to_config <<-RUBY
config.i18n.load_path << config.root.join("config/another_locale.yml").to_s
RUBY
load_app
assert_equal [
"#{app_path}/config/locales/en.yml", "#{app_path}/config/another_locale.yml"
], Rails.application.config.i18n.load_path
assert_includes I18n.load_path, "#{app_path}/config/locales/en.yml"
assert_includes I18n.load_path, "#{app_path}/config/another_locale.yml"
end
test "load_path is populated before eager loaded models" do
add_to_config <<-RUBY
config.enable_reloading = false
RUBY
app_file "config/locales/en.yml", <<-YAML
en:
foo: "1"
YAML
app_file "app/models/foo.rb", <<-RUBY
class Foo < ActiveRecord::Base
@foo = I18n.t(:foo)
end
RUBY
app_file "config/routes.rb", <<-RUBY
Rails.application.routes.draw do
get '/i18n', :to => lambda { |env| [200, {}, [Foo.instance_variable_get('@foo')]] }
end
RUBY
require "rack/test"
extend Rack::Test::Methods
load_app
get "/i18n"
assert_equal "1", last_response.body
end
test "locales are reloaded if they change between requests" do
add_to_config <<-RUBY
config.enable_reloading = true
RUBY
app_file "config/locales/en.yml", <<-YAML
en:
foo: "1"
YAML
app_file "config/routes.rb", <<-RUBY
Rails.application.routes.draw do
get '/i18n', :to => lambda { |env| [200, {}, [I18n.t(:foo)]] }
end
RUBY
require "rack/test"
extend Rack::Test::Methods
load_app
get "/i18n"
assert_equal "1", last_response.body
# Wait a full second so we have time for changes to propagate
sleep(1)
app_file "config/locales/en.yml", <<-YAML
en:
foo: "2"
YAML
get "/i18n"
assert_equal "2", last_response.body
end
test "new locale files are loaded" do
add_to_config <<-RUBY
config.enable_reloading = true
RUBY
app_file "config/locales/en.yml", <<-YAML
en:
foo: "1"
YAML
app_file "config/routes.rb", <<-RUBY
Rails.application.routes.draw do
get '/i18n', :to => lambda { |env| [200, {}, [I18n.t(:foo)]] }
end
RUBY
require "rack/test"
extend Rack::Test::Methods
load_app
get "/i18n"
assert_equal "1", last_response.body
# Wait a full second so we have time for changes to propagate
sleep(1)
remove_file "config/locales/en.yml"
app_file "config/locales/custom.en.yml", <<-YAML
en:
foo: "2"
YAML
get "/i18n"
assert_equal "2", last_response.body
end
test "I18n.load_path is reloaded" do
add_to_config <<-RUBY
config.enable_reloading = true
RUBY
app_file "config/locales/en.yml", <<-YAML
en:
foo: "1"
YAML
app_file "config/routes.rb", <<-RUBY
Rails.application.routes.draw do
get '/i18n', :to => lambda { |env| [200, {}, [I18n.load_path.inspect]] }
end
RUBY
require "rack/test"
extend Rack::Test::Methods
load_app
get "/i18n"
assert_match "en.yml", last_response.body
# Wait a full second so we have time for changes to propagate
sleep(1)
app_file "config/locales/fr.yml", <<-YAML
fr:
foo: "2"
YAML
get "/i18n"
assert_match "fr.yml", last_response.body
assert_match "en.yml", last_response.body
end
# Fallbacks
test "not using config.i18n.fallbacks does not initialize I18n.fallbacks" do
I18n.backend = Class.new(I18n::Backend::Simple).new
load_app
assert_no_fallbacks
end
test "config.i18n.fallbacks = true initializes I18n.fallbacks with default settings" do
I18n::Railtie.config.i18n.fallbacks = true
load_app
assert_includes I18n.backend.class.included_modules, I18n::Backend::Fallbacks
assert_fallbacks de: [:de, :en]
end
test "config.i18n.fallbacks = true initializes I18n.fallbacks with default settings even when backend changes" do
I18n::Railtie.config.i18n.fallbacks = true
I18n::Railtie.config.i18n.backend = Class.new(I18n::Backend::Simple).new
load_app
assert_includes I18n.backend.class.included_modules, I18n::Backend::Fallbacks
assert_fallbacks de: [:de, :en]
end
test "config.i18n.fallbacks.defaults = [:'en-US'] initializes fallbacks with en-US as a fallback default" do
I18n::Railtie.config.i18n.fallbacks.defaults = [:'en-US']
load_app
assert_fallbacks de: [:de, :'en-US', :en]
end
test "config.i18n.fallbacks.map = { :ca => :'es-ES' } initializes fallbacks with a mapping ca => es-ES" do
I18n::Railtie.config.i18n.fallbacks.map = { ca: :'es-ES' }
load_app
assert_fallbacks ca: [:ca, :"es-ES", :es]
end
test "[shortcut] config.i18n.fallbacks = [:'en-US'] initializes fallbacks with en-US as a fallback default" do
I18n::Railtie.config.i18n.fallbacks = [:'en-US']
load_app
assert_fallbacks de: [:de, :'en-US', :en]
end
test "[shortcut] config.i18n.fallbacks = [{ :ca => :'es-ES' }] initializes fallbacks with a mapping ca => es-ES" do
I18n::Railtie.config.i18n.fallbacks = [{ ca: :'es-ES' }]
load_app
assert_fallbacks ca: [:ca, :"es-ES", :es]
end
test "[shortcut] config.i18n.fallbacks = [:'en-US', { :ca => :'es-ES' }] initializes fallbacks with the given arguments" do
I18n::Railtie.config.i18n.fallbacks = [:'en-US', { ca: :'es-ES' }]
load_app
assert_fallbacks ca: [:ca, :"es-ES", :es, :'en-US', :en]
end
test "[shortcut] config.i18n.fallbacks = { ca: :en } initializes fallbacks with a mapping ca => :en" do
I18n::Railtie.config.i18n.fallbacks = { ca: :en }
load_app
assert_fallbacks ca: [:ca, :en]
end
test "disable config.i18n.enforce_available_locales" do
add_to_config <<-RUBY
config.i18n.enforce_available_locales = false
config.i18n.default_locale = :fr
RUBY
load_app
assert_equal false, I18n.enforce_available_locales
assert_nothing_raised do
I18n.locale = :es
end
end
test "default config.i18n.enforce_available_locales does not override I18n.enforce_available_locales" do
I18n.enforce_available_locales = false
add_to_config <<-RUBY
config.i18n.default_locale = :fr
RUBY
load_app
assert_equal false, I18n.enforce_available_locales
assert_nothing_raised do
I18n.locale = :es
end
end
end
end
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