1 files changed, 59 insertions, 0 deletions
diff --git a/browser/components/translations/tests/browser/browser_translations_panel_engine_unsupported.js b/browser/components/translations/tests/browser/browser_translations_panel_engine_unsupported.js
new file mode 100644
index 0000000000..f0804f35aa
--- /dev/null
+++ b/browser/components/translations/tests/browser/browser_translations_panel_engine_unsupported.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that the translations button does not appear when the translations
+ * engine is not supported.
+ */
+add_task(async function test_translations_button_hidden_when_cpu_unsupported() {
+  const { cleanup, runInPage } = await loadTestPage({
+    page: SPANISH_PAGE_URL,
+    languagePairs: LANGUAGE_PAIRS,
+    prefs: [["browser.translations.simulateUnsupportedEngine", true]],
+  });
+
+  await FullPageTranslationsTestUtils.assertPageIsUntranslated(runInPage);
+
+  await FullPageTranslationsTestUtils.assertTranslationsButton(
+    { button: false },
+    "The button is not available."
+  );
+
+  await cleanup();
+});
+
+/**
+ * Tests that the translate-page menuitem is not available in the app menu
+ * when the translations engine is not supported.
+ */
+add_task(
+  async function test_translate_page_app_menu_item_hidden_when_cpu_unsupported() {
+    const { cleanup, runInPage } = await loadTestPage({
+      page: SPANISH_PAGE_URL,
+      languagePairs: LANGUAGE_PAIRS,
+      prefs: [["browser.translations.simulateUnsupportedEngine", true]],
+    });
+
+    await FullPageTranslationsTestUtils.assertPageIsUntranslated(runInPage);
+
+    const appMenuButton = getById("PanelUI-menu-button");
+
+    click(appMenuButton, "Opening the app menu");
+    await BrowserTestUtils.waitForEvent(window.PanelUI.mainView, "ViewShown");
+
+    const translateSiteButton = document.getElementById(
+      "appMenu-translate-button"
+    );
+    is(
+      translateSiteButton.hidden,
+      true,
+      "The app-menu translate button should be hidden because when the engine is not supported."
+    );
+
+    click(appMenuButton, "Closing the app menu");
+
+    await cleanup();
+  }
+);