1 files changed, 21 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-asyncstacks.js b/devtools/client/debugger/test/mochitest/browser_dbg-asyncstacks.js
new file mode 100644
index 0000000000..f99eb66496
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-asyncstacks.js
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// Tests that async stacks include the async separator
+
+"use strict";
+
+add_task(async function () {
+  pushPref("devtools.debugger.features.async-captured-stacks", true);
+  const dbg = await initDebugger("doc-frames-async.html");
+
+  invokeInTab("main");
+  await waitForPaused(dbg);
+
+  is(findElement(dbg, "frame", 1).innerText, "sleep\ndoc-frames-async.html:13");
+  is(
+    findElement(dbg, "frame", 2).innerText,
+    "async\nmain\ndoc-frames-async.html:17"
+  );
+});