diff --git a/tests/subscriptions/subscriptionEngine.php b/tests/subscriptions/subscriptionEngine.php
new file mode 100644
index 0000000..3cc6337
--- /dev/null
+++ b/tests/subscriptions/subscriptionEngine.php
@@ -0,0 +1,104 @@
+<?php
+include("../../config/dmsDefaults.php");
+
+if (checkSession()) {
+    require_once("$default->owl_fs_root/lib/subscriptions/SubscriptionManager.inc");
+    require_once("$default->owl_fs_root/lib/subscriptions/SubscriptionEngine.inc");
+    $oSubscriptionManager = new SubscriptionManager();
+
+    echo "<ul><li><b>create some test subscriptions for subscription firing testing</b></li>";
+
+    // add some subscriptions
+    $iFolderID = 1;
+    echo "<li>Creating folder subscriptions</li><ul>";
+    for ($tmpUserID = 1; $tmpUserID<=5; $tmpUserID++) {
+
+        if ($oSubscriptionManager->createSubscription($tmpUserID, $iFolderID, SubscriptionConstants::subscriptionType("FolderSubscription"))) {
+            echo "<li>created folder subscription folderID=$iFolderID for userID=$tmpUserID</li>";
+        } else {
+            echo "<li>folder subscription creation failed(" . $_SESSION["errorMessage"] . "): folderID=$iFolderID for userID=$tmpUserID</li>";
+        }
+    }
+    echo "</ul>";
+    $iDocumentID = 5;
+    echo "<li>Creating document subscriptions</li><ul>";
+    for ($tmpUserID = 6; $tmpUserID<=10; $tmpUserID++) {
+        if ($oSubscriptionManager->createSubscription($tmpUserID, $iDocumentID, SubscriptionConstants::subscriptionType("DocumentSubscription"))) {
+            echo "<li>created document subscription documentID=$iDocumentID for userID=$tmpUserID</li>";
+        } else {
+            echo "<li>document subscription creation failed(" . $_SESSION["errorMessage"] . "): documentID=$iDocumentID for userID=$tmpUserID</li>";
+        }
+    }
+    echo "</ul>";
+
+    // test subscription firing
+    echo "<li><b>Testing subscription firing</b></li><ul>";
+    require_once("../../phpSniff/phpTimer.class.php");
+    $timer = new phpTimer();
+
+    $iTotalCount = 0;
+
+    $timer->start('subscriptionFiring');
+    $timer->start('AddFolder');
+    $count = SubscriptionEngine::fireSubscription($iFolderID, SubscriptionConstants::subscriptionAlertType("AddFolder"),
+             SubscriptionConstants::subscriptionType("FolderSubscription"),
+             array( "newFolderName" => "Fictitious Folder",
+                    "parentFolderName" => "Medical Research Council"));
+    $iTotalCount += $count;
+    $timer->stop('AddFolder');
+    $time = $timer->get_current('AddFolder');
+    echo "<li>AddFolder: processed alerts=$count; time=$time; subs/s=" . ($time/$count)  . "</li>";
+
+    $timer->start('RemoveFolder');
+    $count = SubscriptionEngine::fireSubscription($iFolderID, SubscriptionConstants::subscriptionAlertType("RemoveFolder"),
+             SubscriptionConstants::subscriptionType("FolderSubscription"),
+             array( "removedFolderName" => "Fictitious Folder",
+                    "parentFolderName" => "Medical Research Council"));
+    $iTotalCount += $count;
+    $timer->stop('RemoveFolder');
+    $time = $timer->get_current('RemoveFolder');
+    echo "<li>RemoveFolder: processed alerts=$count; time=$time; subs/s=" . ($time/$count)  . "</li>";
+
+    $timer->start('AddDocument');
+    $count = SubscriptionEngine::fireSubscription($iFolderID, SubscriptionConstants::subscriptionAlertType("AddDocument"),
+             SubscriptionConstants::subscriptionType("FolderSubscription"),
+             array( "newDocumentName" => "Fictitious Document",
+                    "folderName" => "Medical Research Council"));
+    $timer->stop('AddDocument');
+    $iTotalCount += $count;
+    $time = $timer->get_current('AddDocument');
+    echo "<li>AddDocument: processed alerts=$count; time=$time; subs/s=" . ($time/$count)  . "</li>";
+
+    $timer->start('RemoveDocument');
+    $count = SubscriptionEngine::fireSubscription($iFolderID, SubscriptionConstants::subscriptionAlertType("RemoveDocument"),
+             SubscriptionConstants::subscriptionType("FolderSubscription"),
+             array( "removedDocumentName" => "Fictitious Document",
+                    "folderName" => "Medical Research Council"));
+    $iTotalCount += $count;
+    $timer->stop('RemoveDocument');
+    $time = $timer->get_current('RemoveDocument');
+    echo "<li>RemoveDocument: processed alerts=$count; time=$time; subs/s=" . ($time/$count)  . "</li>";
+
+    $timer->start('ModifyDocument');
+    $count = SubscriptionEngine::fireSubscription($iDocumentID, SubscriptionConstants::subscriptionAlertType("ModifyDocument"),
+             SubscriptionConstants::subscriptionType("DocumentSubscription"),
+             array( "modifiedDocumentName" => "dashboardBL.html"));
+    $iTotalCount += $count;
+    $timer->stop('ModifyDocument');
+    $time = $timer->get_current('ModifyDocument');
+    echo "<li>ModifyDocument: processed alerts=$count; time=$time; subs/s=" . ($time/$count)  . "</li>";
+    $timer->stop('subscriptionFiring');
+
+    $time = $timer->get_current('subscriptionFiring');
+    echo "</ul><li><b>All Subscriptions: processed alerts=$iTotalCount; time=$time; subs/s=" . ($time/$iTotalCount) . "</b></li></ul>";
+
+    // cleanup silently
+    for ($i = 1; $i<=10; $i++) {
+        if ($i<=5) {
+            $oSubscriptionManager->removeSubscription($i, $iFolderID, SubscriptionConstants::subscriptionType("FolderSubscription"));
+        } else {
+            $oSubscriptionManager->removeSubscription($i, $iDocumentID, SubscriptionConstants::subscriptionType("DocumentSubscription"));
+        }
+    }
+}
+?>