diff --git a/module/VuFind/tests/unit-tests/src/VuFindTest/Recommend/OpenLibrarySubjectsDeferredTest.php b/module/VuFind/tests/unit-tests/src/VuFindTest/Recommend/OpenLibrarySubjectsDeferredTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..a6df26fcaa7067f0b4b9acf4663188c8a8b97cb7
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+++ b/module/VuFind/tests/unit-tests/src/VuFindTest/Recommend/OpenLibrarySubjectsDeferredTest.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * OpenLibrarySubjectsDeferred recommendation module Test Class
+ *
+ * PHP version 5
+ *
+ * Copyright (C) Villanova University 2010.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * @category VuFind2
+ * @package  Tests
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     http://vufind.org/wiki/vufind2:unit_tests Wiki
+ */
+namespace VuFindTest\Recommend;
+
+/**
+ * OpenLibrarySubjectsDeferred recommendation module Test Class
+ *
+ * @category VuFind2
+ * @package  Tests
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     http://vufind.org/wiki/vufind2:unit_tests Wiki
+ */
+class OpenLibrarySubjectsDeferredTest extends \VuFindTest\Unit\RecommendDeferredTestCase
+{
+    /**
+     * Test standard operation
+     *
+     * @return void
+     */
+    public function testStandardOperation()
+    {
+        $mod = $this->getRecommend('VuFind\Recommend\OpenLibrarySubjectsDeferred');
+        $this->assertEquals(
+            'mod=OpenLibrarySubjects&params=lookfor%3A%3ApublishDate&lookfor=foo',
+            $mod->getUrlParams()
+        );
+    }
+}
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