1 files changed, 30 insertions, 0 deletions
diff --git a/system/docshell/test/unit/test_bug442584.js b/system/docshell/test/unit/test_bug442584.js
new file mode 100644
index 000000000..174bdb7e3
--- /dev/null
+++ b/system/docshell/test/unit/test_bug442584.js
@@ -0,0 +1,30 @@
+var prefetch = Cc["@mozilla.org/prefetch-service;1"].
+               getService(Ci.nsIPrefetchService);
+var ios = Cc["@mozilla.org/network/io-service;1"].
+          getService(Ci.nsIIOService);
+var prefs = Cc["@mozilla.org/preferences-service;1"].
+            getService(Ci.nsIPrefBranch);
+
+function run_test() {
+  // Fill up the queue
+  prefs.setBoolPref("network.prefetch-next", true);
+  for (var i = 0; i < 5; i++) {
+    var uri = ios.newURI("http://localhost/" + i, null, null);
+    prefetch.prefetchURI(uri, uri, null, true);
+  }
+
+  // Make sure the queue has items in it...
+  do_check_true(prefetch.hasMoreElements());
+
+  // Now disable the pref to force the queue to empty...
+  prefs.setBoolPref("network.prefetch-next", false);
+  do_check_false(prefetch.hasMoreElements());
+
+  // Now reenable the pref, and add more items to the queue.
+  prefs.setBoolPref("network.prefetch-next", true);
+  for (var i = 0; i < 5; i++) {
+    var uri = ios.newURI("http://localhost/" + i, null, null);
+    prefetch.prefetchURI(uri, uri, null, true);
+  }
+  do_check_true(prefetch.hasMoreElements());
+}