discourse/spec/system/content_localization_spec.rb
Natalie Tay 0ba3463120
FIX: Do not change language for logged in user when tl is present (#35942)
Meta:
https://meta.discourse.org/t/set-locale-from-param-and-content-localisation-issue/387547

We want to make sure that the `SiteSetting.set_locale_from_param`
conforms to its description: `"Allows setting an anonymous user's locale
via the 'tl' URL param, e.g. ?tl=es"`. Currently, the bug is that this
is applied to logged in users as well.

We also do not want to modify a logged in user's locale as it should
remain as per their user profile.
2025-11-11 11:20:23 +08:00

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# frozen_string_literal: true
describe "Content Localization" do
TOGGLE_LOCALIZE_BUTTON_SELECTOR = "button.btn-toggle-localized-content"
fab!(:japanese_user) { Fabricate(:user, locale: "ja") }
fab!(:site_local_user) { Fabricate(:user, locale: "en") }
fab!(:admin)
fab!(:jap_group) { Fabricate(:group).tap { |g| g.add(japanese_user) } }
fab!(:topic) do
Fabricate(:topic, title: "Life strategies from The Art of War", locale: "en", user: admin)
end
fab!(:post_1) do
Fabricate(
:post,
topic:,
locale: "en",
raw: "The masterpiece isnt just about military strategy",
)
end
fab!(:post_2) do
Fabricate(
:post,
topic:,
locale: "en",
raw: "The greatest victory is that which requires no battle",
)
end
fab!(:post_3) { Fabricate(:post, topic:, locale: "ja", raw: "将とは、智・信・仁・勇・厳なり。") }
let(:topic_page) { PageObjects::Pages::Topic.new }
let(:topic_list) { PageObjects::Components::TopicList.new }
let(:composer) { PageObjects::Components::Composer.new }
let(:post_1_obj) { PageObjects::Components::Post.new(1) }
let(:post_3_obj) { PageObjects::Components::Post.new(3) }
let(:post_4_obj) { PageObjects::Components::Post.new(4) }
def scroll_to_post(post_number)
5.times do
break if page.has_css?("#post_#{post_number} .cooked", visible: :all, wait: 0)
page.execute_script("window.scrollTo(0, document.body.scrollHeight)")
end
end
before do
Fabricate(:topic_localization, topic:, locale: "ja", fancy_title: "孫子兵法からの人生戦略")
Fabricate(:topic_localization, topic:, locale: "es", fancy_title: "Estrategias de vida de ...")
Fabricate(:post_localization, post: post_1, locale: "ja", cooked: "傑作は単なる軍事戦略についてではありません")
Fabricate(:post_localization, post: post_2, locale: "ja", cooked: "最大の勝利は戦いを必要としないものです")
Fabricate(:post_localization, post: post_3, locale: "en", cooked: "A general is one who ..")
SiteSetting.approve_unless_allowed_groups = Group::AUTO_GROUPS[:everyone]
end
context "when the feature is enabled for English and Japanese" do
before do
SiteSetting.allow_user_locale = true
SiteSetting.content_localization_enabled = true
SiteSetting.content_localization_allowed_groups =
"#{Group::AUTO_GROUPS[:admins]}|#{jap_group.id}"
SiteSetting.content_localization_supported_locales = "en|ja"
end
it "shows the user's language based on their user locale" do
sign_in(japanese_user)
visit("/t/#{topic.id}")
expect(topic_page.has_topic_title?("孫子兵法からの人生戦略")).to eq(true)
end
it "shows original content when 'Show Original' is selected" do
sign_in(japanese_user)
visit("/")
topic_list.visit_topic_with_title("孫子兵法からの人生戦略")
expect(topic_page.has_topic_title?("孫子兵法からの人生戦略")).to eq(true)
expect(page.find(TOGGLE_LOCALIZE_BUTTON_SELECTOR)["title"]).to eq(
I18n.t("js.content_localization.toggle_localized.translated"),
)
page.find(TOGGLE_LOCALIZE_BUTTON_SELECTOR).click
expect(topic_page.has_topic_title?("Life strategies from The Art of War")).to eq(true)
expect(page.find(TOGGLE_LOCALIZE_BUTTON_SELECTOR)["title"]).to eq(
I18n.t("js.content_localization.toggle_localized.not_translated"),
)
visit("/")
topic_list.visit_topic_with_title("Life strategies from The Art of War")
end
it "allows users to set their post's locale when posting" do
sign_in(japanese_user)
visit("/")
topic_list.visit_topic_with_title("孫子兵法からの人生戦略")
topic_page.click_post_action_button(post_1, :reply)
expect(composer).to be_opened
expect(composer.locale.text.gsub(/\u200B/, "")).to be_blank
composer.set_locale("日本語")
composer.fill_content("この小説は、名前のない猫の視点から明治時代の人間社会を風刺的に描いています。")
composer.create
new_post = Post.find_by(post_number: 4, topic_id: topic.id)
expect(new_post).to_not be_nil
# simulates a localization that would have been automatically created
Fabricate(
:post_localization,
post: new_post,
locale: "en",
cooked:
"This novel satirically depicts Meiji-era human society from the perspective of a nameless cat.",
)
sign_in(site_local_user)
topic_page.visit_topic(topic)
expect(post_4_obj.post_language).to have_content("日本語")
end
it "shows 'en' posts for 'en_GB' users" do
brit_user = Fabricate(:user, locale: "en_GB")
sign_in(brit_user)
visit("/")
topic_list.visit_topic_with_title("Life strategies from The Art of War")
expect(post_3_obj.post).to have_content("A general is one who ..")
end
context "with tl parameter" do
before do
SiteSetting.set_locale_from_param = true
SiteSetting.set_locale_from_cookie = true
end
fab!(:topic2) do
topic = Fabricate(:topic, title: "The Life of Oda Nobunaga", locale: "en", user: admin)
Fabricate(:post, topic:, locale: "en", raw: "Oda Nobunaga was a powerful daimyo ...")
topic
end
fab!(:topic_localization2) do
Fabricate(:topic_localization, topic: topic2, locale: "ja", fancy_title: "織田信長の生涯")
end
it "persists locale for anonymous users across page views" do
visit("/t/#{topic.id}?tl=ja")
expect(topic_page.topic_title).to have_content("孫子兵法からの人生戦略")
visit("/t/#{topic2.id}")
expect(topic_page.topic_title).to have_content("織田信長の生涯")
end
it "ignores tl parameter for logged-in users" do
sign_in(site_local_user)
visit("/t/#{topic.id}?tl=ja")
expect(topic_page.has_topic_title?("Life strategies from The Art of War")).to eq(true)
end
end
context "when editing" do
let(:edit_localized_post_dialog) { PageObjects::Components::Dialog.new }
let(:fast_editor) { PageObjects::Components::FastEditor.new }
it "allows editing original content when post is localized" do
sign_in(admin)
topic_page.visit_topic(topic)
topic_page.expand_post_actions(post_3)
topic_page.click_post_action_button(post_3, :edit)
expect(edit_localized_post_dialog).to be_open
edit_localized_post_dialog.click_yes
expect(composer).to have_content(post_3.raw)
end
it "allows editing translated content when post is localized" do
sign_in(admin)
topic_page.visit_topic(topic)
topic_page.expand_post_actions(post_3)
topic_page.click_post_action_button(post_3, :edit)
expect(edit_localized_post_dialog).to be_open
edit_localized_post_dialog.click_no
expect(page).to have_css(".action-title", text: I18n.t("js.composer.translations.title"))
end
it "does not open the fast editor for localized posts" do
sign_in(admin)
topic_page.visit_topic(topic)
select_text_range("#{topic_page.post_by_number_selector(post_3.post_number)} .cooked", 0, 5)
expect(topic_page.fast_edit_button).to be_visible
topic_page.click_fast_edit_button
expect(page).to have_no_css("#fast-edit-input")
expect(edit_localized_post_dialog).to be_open
end
end
context "for post edit histories" do
let(:post_history_modal) { PageObjects::Modals::PostHistory.new }
before do
SiteSetting.editing_grace_period = 0
PostRevisor.new(post_1).revise!(Discourse.system_user, { raw: post_1.raw, locale: "" })
PostRevisor.new(post_1).revise!(Discourse.system_user, { raw: post_1.raw, locale: "ja" })
end
it "shows the language of the post in history modal" do
sign_in(admin)
visit("/")
topic_list.visit_topic_with_title(topic.title)
post_1_obj.open_post_history
expect(post_history_modal.current_locale).to have_content("日本語")
expect(post_history_modal.previous_locale).to have_content(
I18n.t("js.post.revisions.locale.no_locale_set"),
)
post_history_modal.click_previous_revision
expect(post_history_modal.current_locale).to have_content(
I18n.t("js.post.revisions.locale.locale_removed"),
)
expect(post_history_modal.previous_locale).to have_content("English (US)")
end
end
context "when loading 20+ posts in stream" do
before do
highest = topic.highest_post_number
22.times do |i|
post_number = i + highest + 1
post =
Fabricate(
:post,
topic: topic,
locale: "ja",
raw: "Japanese content for post #{post_number}",
cooked: "<p>日本語コンテンツ #{post_number}</p>",
)
Fabricate(
:post_localization,
post:,
locale: "en",
cooked: "<p>English translation #{post_number}</p>",
)
end
end
let(:post_21_obj) { PageObjects::Components::Post.new(21) }
it "respects the show_original toggle for posts loaded dynamically when scrolling (20+ posts)" do
sign_in(site_local_user)
visit("/")
topic_page.visit_topic(topic)
expect(post_3_obj.post).to have_content("A general is one who ..")
expect(topic_page).to have_post_content(post_number: 3, content: "A general is one who ..")
scroll_to_post(21)
expect(page).to have_css("#post_21")
expect(topic_page).to have_post_content(post_number: 21, content: "English translation 21")
# toggle should show correct state of post content
page.find(TOGGLE_LOCALIZE_BUTTON_SELECTOR).click
scroll_to_post(21)
expect(post_21_obj.post).to have_content("日本語コンテンツ 21")
# refresh should show correct state of post content
page.refresh
scroll_to_post(21)
expect(post_21_obj.post).to have_content("日本語コンテンツ 21")
end
end
end
context "for site settings" do
let(:settings_page) { PageObjects::Pages::AdminSiteSettings.new }
let(:banner) { PageObjects::Components::AdminChangesBanner.new }
it "does not allow more than the maximum number of locales" do
SiteSetting.content_localization_supported_locales = "en|ja"
SiteSetting.content_localization_max_locales = 2
sign_in(admin)
settings_page.visit("content_localization_supported_locales")
expect(settings_page.find_setting("content_localization_supported_locales")).to have_content(
"English (US), Japanese",
)
settings_page.select_list_values("content_localization_supported_locales", %w[es])
settings_page.save_setting("content_localization_supported_locales")
expect(settings_page.error_message("content_localization_supported_locales")).to have_content(
I18n.t(
"site_settings.errors.content_localization_locale_limit",
max: SiteSetting.content_localization_max_locales,
),
)
end
end
end