1 files changed, 40 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_debug-target-pane_collapsibilities_preference.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_debug-target-pane_collapsibilities_preference.js
new file mode 100644
index 0000000000..50857ee617
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_debug-target-pane_collapsibilities_preference.js
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/* import-globals-from helper-collapsibilities.js */
+Services.scriptloader.loadSubScript(
+  CHROME_URL_ROOT + "helper-collapsibilities.js",
+  this
+);
+
+/**
+ * Test for preference of DebugTargetPane collapsibilities.
+ */
+
+add_task(async function () {
+  prepareCollapsibilitiesTest();
+
+  const { document, tab, window } = await openAboutDebugging();
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  info("Collapse all pane");
+  for (const { title } of TARGET_PANES) {
+    const debugTargetPaneEl = getDebugTargetPane(title, document);
+    await toggleCollapsibility(debugTargetPaneEl);
+  }
+
+  info("Check preference of collapsibility after closing about:debugging page");
+  await removeTab(tab);
+  // Wait until unmount.
+  await waitUntil(() => document.querySelector(".app") === null);
+
+  for (const { pref } of TARGET_PANES) {
+    is(
+      Services.prefs.getBoolPref(pref),
+      true,
+      `${pref} preference should be true`
+    );
+  }
+});