diff -r 000000000000 -r 6474c204b198 netwerk/cookie/test/unit/test_bug643051.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/cookie/test/unit/test_bug643051.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function run_test() {
+  // Allow all cookies.
+  Services.prefs.setIntPref("network.cookie.cookieBehavior", 0);
+
+  let cs = Cc["@mozilla.org/cookieService;1"].getService(Ci.nsICookieService);
+
+  let uri = NetUtil.newURI("http://example.org/");
+
+  let set = "foo=bar\nbaz=foo";
+  let expected = "foo=bar; baz=foo";
+  cs.setCookieStringFromHttp(uri, null, null, set, null, null);
+
+  let actual = cs.getCookieStringFromHttp(uri, null, null);
+  do_check_eq(actual, expected);
+
+  uri = NetUtil.newURI("http://example.com/");
+  cs.setCookieString(uri, null, set, null);
+
+  expected = "foo=bar";
+  actual = cs.getCookieString(uri, null, null);
+  do_check_eq(actual, expected);
+}
+