1 files changed, 43 insertions, 0 deletions
diff --git a/dom/tests/browser/browser_bug1004814.js b/dom/tests/browser/browser_bug1004814.js
new file mode 100644
index 0000000000..4897019b21
--- /dev/null
+++ b/dom/tests/browser/browser_bug1004814.js
@@ -0,0 +1,43 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+add_task(async function() {
+  const TEST_URI =
+    "http://example.com/browser/dom/tests/browser/test_bug1004814.html";
+
+  await BrowserTestUtils.withNewTab(TEST_URI, async aBrowser => {
+    let duration = await SpecialPowers.spawn(aBrowser, [], function(opts) {
+      return new Promise(resolve => {
+        let ConsoleObserver = {
+          QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
+
+          observe(aSubject, aTopic, aData) {
+            var obj = aSubject.wrappedJSObject;
+            if (
+              obj.arguments.length != 1 ||
+              obj.arguments[0] != "bug1004814" ||
+              obj.level != "timeEnd"
+            ) {
+              return;
+            }
+
+            Services.obs.removeObserver(this, "console-api-log-event");
+            resolve(obj.timer.duration);
+          },
+        };
+
+        Services.obs.addObserver(ConsoleObserver, "console-api-log-event");
+
+        var w = new content.Worker("worker_bug1004814.js");
+        w.postMessage(true);
+      });
+    });
+
+    ok(
+      duration > 0,
+      "ConsoleEvent.timer.duration > 0: " + duration + " ~ 200ms"
+    );
+  });
+});