" + longTitle); + }); +}


diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug749658.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug749658.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+let win;
+
+function test() {
+  waitForExplicitFinish();
+
+  newWindowWithTabView(function(newWin) {
+    win = newWin;
+
+    registerCleanupFunction(function() {
+      win.close();
+    });
+
+    is(win.gBrowser.tabContainer.getAttribute("overflow"), "",
+       "The tabstrip should not be overflowing");
+
+    finish();
+  }, function(newWin) {
+    /* add a tab with a ridiculously long title to trigger bug 749658 */
+    var longTitle = "this is a very long title for the new tab ";
+    longTitle = longTitle + longTitle + longTitle + longTitle + longTitle;
+    longTitle = longTitle + longTitle + longTitle + longTitle + longTitle;
+    newWin.gBrowser.addTab("data:text/html,<head><title>" + longTitle);
+  });
+}