1 files changed, 9 insertions, 0 deletions
diff --git a/testing/mochitest/tests/browser/browser_fail_async.js b/testing/mochitest/tests/browser/browser_fail_async.js
new file mode 100644
index 0000000000..6f284bf2aa
--- /dev/null
+++ b/testing/mochitest/tests/browser/browser_fail_async.js
@@ -0,0 +1,9 @@
+setExpectedFailuresForSelfTest(1);
+
+function test() {
+  waitForExplicitFinish();
+  executeSoon(() => {
+    ok(false, "fail");
+    finish();
+  });
+}