1 files changed, 97 insertions, 0 deletions
diff --git a/browser/components/translations/tests/browser/browser_translations_about_preferences_settings_always_translate_languages.js b/browser/components/translations/tests/browser/browser_translations_about_preferences_settings_always_translate_languages.js
new file mode 100644
index 0000000000..9f40003bfc
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+++ b/browser/components/translations/tests/browser/browser_translations_about_preferences_settings_always_translate_languages.js
@@ -0,0 +1,97 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(
+  async function test_about_preferences_always_translate_language_settings() {
+    const {
+      cleanup,
+      elements: { settingsButton },
+    } = await setupAboutPreferences(LANGUAGE_PAIRS, {
+      prefs: [["browser.translations.newSettingsUI.enable", false]],
+    });
+
+    info("Ensuring the list of always-translate languages is empty");
+    is(
+      getAlwaysTranslateLanguagesFromPref().length,
+      0,
+      "The list of always-translate languages is empty"
+    );
+
+    info("Adding two languages to the alwaysTranslateLanguages pref");
+    Services.prefs.setCharPref(ALWAYS_TRANSLATE_LANGS_PREF, "fr,de");
+
+    const dialogWindow = await waitForOpenDialogWindow(
+      "chrome://browser/content/preferences/dialogs/translations.xhtml",
+      () => {
+        click(
+          settingsButton,
+          "Opening the about:preferences Translations Settings"
+        );
+      }
+    );
+    let tree = dialogWindow.document.getElementById(
+      "alwaysTranslateLanguagesTree"
+    );
+    let remove = dialogWindow.document.getElementById(
+      "removeAlwaysTranslateLanguage"
+    );
+    let removeAll = dialogWindow.document.getElementById(
+      "removeAllAlwaysTranslateLanguages"
+    );
+
+    is(
+      tree.view.rowCount,
+      2,
+      "The always-translate languages list has 2 items"
+    );
+    ok(remove.disabled, "The 'Remove Language' button is disabled");
+    ok(!removeAll.disabled, "The 'Remove All Languages' button is enabled");
+
+    info("Selecting the first always-translate language.");
+    tree.view.selection.select(0);
+    ok(!remove.disabled, "The 'Remove Language' button is enabled");
+
+    click(remove, "Clicking the remove-language button");
+    is(
+      tree.view.rowCount,
+      1,
+      "The always-translate languages list now contains 1 item"
+    );
+    is(
+      getAlwaysTranslateLanguagesFromPref().length,
+      1,
+      "One language tag in the pref"
+    );
+
+    info("Removing all languages from the alwaysTranslateLanguages pref");
+    Services.prefs.setCharPref(ALWAYS_TRANSLATE_LANGS_PREF, "");
+    is(tree.view.rowCount, 0, "The always-translate languages list is empty");
+    ok(remove.disabled, "The 'Remove Language' button is disabled");
+    ok(removeAll.disabled, "The 'Remove All Languages' button is disabled");
+
+    info("Adding more languages to the alwaysTranslateLanguages pref");
+    Services.prefs.setCharPref(ALWAYS_TRANSLATE_LANGS_PREF, "fr,en,es");
+    is(
+      tree.view.rowCount,
+      3,
+      "The always-translate languages list has 3 items"
+    );
+    ok(remove.disabled, "The 'Remove Language' button is disabled");
+    ok(!removeAll.disabled, "The 'Remove All Languages' button is enabled");
+
+    click(removeAll, "Clicking the remove-all languages button");
+    is(tree.view.rowCount, 0, "The always-translate languages list is empty");
+    ok(remove.disabled, "The 'Remove Language' button is disabled");
+    ok(removeAll.disabled, "The 'Remove All Languages' button is disabled");
+    is(
+      getAlwaysTranslateLanguagesFromPref().length,
+      0,
+      "There are no languages in the alwaysTranslateLanguages pref"
+    );
+
+    await waitForCloseDialogWindow(dialogWindow);
+    await cleanup();
+  }
+);