1 files changed, 38 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-options-03-toggle-meta.js b/devtools/client/performance/test/browser_perf-options-03-toggle-meta.js
new file mode 100644
index 000000000..384133fff
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-options-03-toggle-meta.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that toggling meta option prefs change visibility of other options.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { UI_EXPERIMENTAL_PREF } = require("devtools/client/performance/test/helpers/prefs");
+const { initPerformanceInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
+
+add_task(function* () {
+  Services.prefs.setBoolPref(UI_EXPERIMENTAL_PREF, false);
+
+  let { panel } = yield initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window
+  });
+
+  let { $ } = panel.panelWin;
+  let $body = $(".theme-body");
+  let $menu = $("#performance-options-menupopup");
+
+  ok(!$body.classList.contains("experimental-enabled"),
+    "The body node does not have `experimental-enabled` on start.");
+  ok(!$menu.classList.contains("experimental-enabled"),
+    "The menu popup does not have `experimental-enabled` on start.");
+
+  Services.prefs.setBoolPref(UI_EXPERIMENTAL_PREF, true);
+
+  ok($body.classList.contains("experimental-enabled"),
+    "The body node has `experimental-enabled` after toggle.");
+  ok($menu.classList.contains("experimental-enabled"),
+    "The menu popup has `experimental-enabled` after toggle.");
+
+  yield teardownToolboxAndRemoveTab(panel);
+});