1 files changed, 45 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_console_dead_objects.js b/devtools/client/webconsole/test/browser/browser_console_dead_objects.js
new file mode 100644
index 0000000000..69e019c062
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_console_dead_objects.js
@@ -0,0 +1,45 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Check that Dead Objects do not break the Web/Browser Consoles.
+//
+// This test:
+// - Opens the Browser Console.
+// - Creates a sandbox.
+// - Stores a reference to the sandbox on the chrome window object.
+// - Nukes the sandbox
+// - Tries to use the sandbox. This is the dead object.
+
+"use strict";
+
+add_task(async function () {
+  // Needed for the execute() function below
+  await pushPref("security.allow_parent_unrestricted_js_loads", true);
+
+  const hud = await BrowserConsoleManager.toggleBrowserConsole();
+  ok(hud, "browser console opened");
+
+  // Add the reference to the nuked sandbox.
+  execute(
+    hud,
+    "window.nukedSandbox = Cu.Sandbox(null); Cu.nukeSandbox(nukedSandbox);"
+  );
+
+  await executeAndWaitForResultMessage(hud, "nukedSandbox", "DeadObject");
+  const msg = await executeAndWaitForErrorMessage(
+    hud,
+    "nukedSandbox.hello",
+    "can't access dead object"
+  );
+
+  // Check that the link contains an anchor. We can't click on the link because
+  // clicking links from tests attempts to access an external URL and crashes Firefox.
+  const anchor = msg.node.querySelector("a");
+  is(anchor.textContent, "[Learn More]", "Link text is correct");
+
+  await executeAndWaitForResultMessage(
+    hud,
+    "delete window.nukedSandbox; 1 + 1",
+    "2"
+  );
+});