1 files changed, 35 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_tab_close_dependent_window.js b/browser/base/content/test/general/browser_tab_close_dependent_window.js
new file mode 100644
index 0000000000..a9b9c1d999
--- /dev/null
+++ b/browser/base/content/test/general/browser_tab_close_dependent_window.js
@@ -0,0 +1,35 @@
+"use strict";
+
+add_task(async function closing_tab_with_dependents_should_close_window() {
+  info("Opening window");
+  let win = await BrowserTestUtils.openNewBrowserWindow();
+
+  info("Opening tab with data URI");
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    win.gBrowser,
+    `data:text/html,<html%20onclick="W=window.open()"><body%20onbeforeunload="W.close()">`
+  );
+  info("Closing original tab in this window.");
+  BrowserTestUtils.removeTab(win.gBrowser.tabs[0]);
+  info("Clicking into the window");
+  let depTabOpened = BrowserTestUtils.waitForEvent(
+    win.gBrowser.tabContainer,
+    "TabOpen"
+  );
+  await BrowserTestUtils.synthesizeMouse("html", 0, 0, {}, tab.linkedBrowser);
+
+  let openedTab = (await depTabOpened).target;
+  info("Got opened tab");
+
+  let windowClosedPromise = BrowserTestUtils.windowClosed(win);
+  BrowserTestUtils.removeTab(tab);
+  is(
+    Cu.isDeadWrapper(openedTab) || openedTab.linkedBrowser == null,
+    true,
+    "Opened tab should also have closed"
+  );
+  info(
+    "If we timeout now, the window failed to close - that shouldn't happen!"
+  );
+  await windowClosedPromise;
+});