1 files changed, 68 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_bug521216.js b/browser/base/content/test/general/browser_bug521216.js
new file mode 100644
index 0000000000..8c885bbcc8
--- /dev/null
+++ b/browser/base/content/test/general/browser_bug521216.js
@@ -0,0 +1,68 @@
+var expected = [
+  "TabOpen",
+  "onStateChange",
+  "onLocationChange",
+  "onLinkIconAvailable",
+];
+var actual = [];
+var tabIndex = -1;
+this.__defineGetter__("tab", () => gBrowser.tabs[tabIndex]);
+
+function test() {
+  waitForExplicitFinish();
+  tabIndex = gBrowser.tabs.length;
+  gBrowser.addTabsProgressListener(progressListener);
+  gBrowser.tabContainer.addEventListener("TabOpen", TabOpen);
+  BrowserTestUtils.addTab(
+    gBrowser,
+    "data:text/html,<html><head><link href='about:logo' rel='shortcut icon'>"
+  );
+}
+
+function recordEvent(aName) {
+  info("got " + aName);
+  if (!actual.includes(aName)) {
+    actual.push(aName);
+  }
+  if (actual.length == expected.length) {
+    is(
+      actual.toString(),
+      expected.toString(),
+      "got events and progress notifications in expected order"
+    );
+
+    executeSoon(
+      // eslint-disable-next-line no-shadow
+      function (tab) {
+        gBrowser.removeTab(tab);
+        gBrowser.removeTabsProgressListener(progressListener);
+        gBrowser.tabContainer.removeEventListener("TabOpen", TabOpen);
+        finish();
+      }.bind(null, tab)
+    );
+  }
+}
+
+function TabOpen(aEvent) {
+  if (aEvent.target == tab) {
+    recordEvent("TabOpen");
+  }
+}
+
+var progressListener = {
+  onLocationChange: function onLocationChange(aBrowser) {
+    if (aBrowser == tab.linkedBrowser) {
+      recordEvent("onLocationChange");
+    }
+  },
+  onStateChange: function onStateChange(aBrowser) {
+    if (aBrowser == tab.linkedBrowser) {
+      recordEvent("onStateChange");
+    }
+  },
+  onLinkIconAvailable: function onLinkIconAvailable(aBrowser) {
+    if (aBrowser == tab.linkedBrowser) {
+      recordEvent("onLinkIconAvailable");
+    }
+  },
+};