discourse/spec/components/js_locale_helper_spec.rb

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require 'rails_helper'
require_dependency 'js_locale_helper'
describe JsLocaleHelper do
module StubLoadTranslations
def set_translations(locale, translations)
@loaded_translations ||= HashWithIndifferentAccess.new
@loaded_translations[locale] = translations
end
def clear_cache!
@loaded_translations = nil
@loaded_merges = nil
end
end
JsLocaleHelper.extend StubLoadTranslations
after do
JsLocaleHelper.clear_cache!
end
it 'should be able to generate translations' do
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expect(JsLocaleHelper.output_locale('en').length).to be > 0
end
def setup_message_format(format)
@ctx = V8::Context.new
@ctx.eval('MessageFormat = {locale: {}};')
@ctx.load(Rails.root + 'lib/javascripts/locale/en.js')
compiled = JsLocaleHelper.compile_message_format('en', format)
@ctx.eval("var test = #{compiled}")
end
def localize(opts)
@ctx.eval("test(#{opts.to_json})")
end
it 'handles plurals' do
setup_message_format('{NUM_RESULTS, plural,
one {1 result}
other {# results}
}')
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expect(localize(NUM_RESULTS: 1)).to eq('1 result')
expect(localize(NUM_RESULTS: 2)).to eq('2 results')
end
it 'handles double plurals' do
setup_message_format('{NUM_RESULTS, plural,
one {1 result}
other {# results}
} and {NUM_APPLES, plural,
one {1 apple}
other {# apples}
}')
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expect(localize(NUM_RESULTS: 1, NUM_APPLES: 2)).to eq('1 result and 2 apples')
expect(localize(NUM_RESULTS: 2, NUM_APPLES: 1)).to eq('2 results and 1 apple')
end
it 'handles select' do
setup_message_format('{GENDER, select, male {He} female {She} other {They}} read a book')
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expect(localize(GENDER: 'male')).to eq('He read a book')
expect(localize(GENDER: 'female')).to eq('She read a book')
expect(localize(GENDER: 'none')).to eq('They read a book')
end
it 'can strip out message formats' do
hash = {"a" => "b", "c" => { "d" => {"f_MF" => "bob"} }}
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expect(JsLocaleHelper.strip_out_message_formats!(hash)).to eq({"c.d.f_MF" => "bob"})
expect(hash["c"]["d"]).to eq({})
end
it 'handles message format special keys' do
ctx = V8::Context.new
ctx.eval("I18n = {};")
JsLocaleHelper.set_translations 'en', {
"en" =>
{
"js" => {
"hello" => "world",
"test_MF" => "{HELLO} {COUNT, plural, one {1 duck} other {# ducks}}",
"error_MF" => "{{BLA}",
"simple_MF" => "{COUNT, plural, one {1} other {#}}"
}
}
}
ctx.eval(JsLocaleHelper.output_locale('en'))
expect(ctx.eval('I18n.translations["en"]["js"]["hello"]')).to eq("world")
expect(ctx.eval('I18n.translations["en"]["js"]["test_MF"]')).to eq(nil)
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expect(ctx.eval('I18n.messageFormat("test_MF", { HELLO: "hi", COUNT: 3 })')).to eq("hi 3 ducks")
expect(ctx.eval('I18n.messageFormat("error_MF", { HELLO: "hi", COUNT: 3 })')).to match(/Invalid Format/)
expect(ctx.eval('I18n.messageFormat("missing", {})')).to match(/missing/)
expect(ctx.eval('I18n.messageFormat("simple_MF", {})')).to match(/COUNT/) # error
end
it 'load pluralizations rules before precompile' do
message = JsLocaleHelper.compile_message_format('ru', 'format')
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expect(message).not_to match 'Plural Function not found'
end
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it 'performs fallbacks to english if a translation is not available' do
JsLocaleHelper.set_translations 'en', {
"en" => {
"js" => {
"only_english" => "1-en",
"english_and_site" => "3-en",
"english_and_user" => "5-en",
"all_three" => "7-en",
}
}
}
JsLocaleHelper.set_translations 'ru', {
"ru" => {
"js" => {
"only_site" => "2-ru",
"english_and_site" => "3-ru",
"site_and_user" => "6-ru",
"all_three" => "7-ru",
}
}
}
JsLocaleHelper.set_translations 'uk', {
"uk" => {
"js" => {
"only_user" => "4-uk",
"english_and_user" => "5-uk",
"site_and_user" => "6-uk",
"all_three" => "7-uk",
}
}
}
expected = {
"none" => "[uk.js.none]",
"only_english" => "1-en",
"only_site" => "2-ru",
"english_and_site" => "3-ru",
"only_user" => "4-uk",
"english_and_user" => "5-uk",
"site_and_user" => "6-uk",
"all_three" => "7-uk",
}
SiteSetting.default_locale = 'ru'
I18n.locale = :uk
ctx = V8::Context.new
ctx.eval('var window = this;')
ctx.load(Rails.root + 'app/assets/javascripts/locales/i18n.js')
ctx.eval(JsLocaleHelper.output_locale(I18n.locale))
ctx.eval('I18n.defaultLocale = "ru";')
# Test - unneeded translations are not emitted
expect(ctx.eval('I18n.translations.en.js').keys).to eq(["only_english"])
expect(ctx.eval('I18n.translations.ru.js').keys).to eq(["only_site", "english_and_site"])
expected.each do |key, expect|
expect(ctx.eval("I18n.t(#{"js.#{key}".inspect})")).to eq(expect)
end
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end
LocaleSiteSetting.values.each do |locale|
it "generates valid date helpers for #{locale[:value]} locale" do
js = JsLocaleHelper.output_locale(locale[:value])
ctx = V8::Context.new
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ctx.eval('var window = this;')
ctx.load(Rails.root + 'app/assets/javascripts/locales/i18n.js')
ctx.eval(js)
end
end
end