1 files changed, 12 insertions, 0 deletions
diff --git a/testing/mochitest/tests/browser/browser_zz_fail_openwindow.js b/testing/mochitest/tests/browser/browser_zz_fail_openwindow.js
new file mode 100644
index 000000000..e9fe71d14
--- /dev/null
+++ b/testing/mochitest/tests/browser/browser_zz_fail_openwindow.js
@@ -0,0 +1,12 @@
+function test() {
+  waitForExplicitFinish();
+  function done() {
+    ok(true, "timeout ran");
+    finish();
+  }
+
+  ok(OpenBrowserWindow(), "opened browser window");
+  // and didn't close it!
+
+  setTimeout(done, 10000);
+}