1 files changed, 41 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_unloaddialogs.js b/browser/base/content/test/general/browser_unloaddialogs.js
new file mode 100644
index 000000000..bf3790b95
--- /dev/null
+++ b/browser/base/content/test/general/browser_unloaddialogs.js
@@ -0,0 +1,41 @@
+var testUrls =
+  [
+    "data:text/html,<script>" +
+      "function handle(evt) {" +
+        "evt.target.removeEventListener(evt.type, handle, true);" +
+        "try { alert('This should NOT appear'); } catch(e) { }" +
+      "}" +
+      "window.addEventListener('pagehide', handle, true);" +
+      "window.addEventListener('beforeunload', handle, true);" +
+      "window.addEventListener('unload', handle, true);" +
+      "</script><body>Testing alert during pagehide/beforeunload/unload</body>",
+    "data:text/html,<script>" +
+      "function handle(evt) {" +
+        "evt.target.removeEventListener(evt.type, handle, true);" +
+        "try { prompt('This should NOT appear'); } catch(e) { }" +
+      "}" +
+      "window.addEventListener('pagehide', handle, true);" +
+      "window.addEventListener('beforeunload', handle, true);" +
+      "window.addEventListener('unload', handle, true);" +
+      "</script><body>Testing prompt during pagehide/beforeunload/unload</body>",
+    "data:text/html,<script>" +
+      "function handle(evt) {" +
+        "evt.target.removeEventListener(evt.type, handle, true);" +
+        "try { confirm('This should NOT appear'); } catch(e) { }" +
+      "}" +
+      "window.addEventListener('pagehide', handle, true);" +
+      "window.addEventListener('beforeunload', handle, true);" +
+      "window.addEventListener('unload', handle, true);" +
+      "</script><body>Testing confirm during pagehide/beforeunload/unload</body>",
+  ];
+
+add_task(function*() {
+  for (let url of testUrls) {
+    let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+    ok(true, "Loaded page " + url);
+    // Wait one turn of the event loop before closing, so everything settles.
+    yield new Promise(resolve => setTimeout(resolve, 0));
+    yield BrowserTestUtils.removeTab(tab);
+    ok(true, "Closed page " + url + " without timeout");
+  }
+});