diff --git a/test/test_pit.cc b/test/test_pit.cc
new file mode 100644
index 0000000..bb85580
--- /dev/null
+++ b/test/test_pit.cc
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * 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
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         卞超轶 Chaoyi Bian <bcy@pku.edu.cn>
+ *	   Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include <boost/test/unit_test.hpp>
+#include <boost/test/output_test_stream.hpp> 
+using boost::test_tools::output_test_stream;
+#include <vector>
+
+#include <boost/make_shared.hpp>
+
+#include "../model/sync-interest-table.h"
+
+using namespace Sync;
+using namespace std;
+using namespace boost;
+
+string sitToString(SyncInterestTable *sit) {
+	vector<string> ent = sit->fetchAll();
+	sort(ent.begin(), ent.end());
+	string str = "";
+	while(!ent.empty()){
+		str += ent.back();
+		ent.pop_back();
+	}
+	return str;
+}
+
+BOOST_AUTO_TEST_CASE (SyncInterestTableTest)
+{
+	SyncInterestTable sit;
+	sit.insert("/ucla.edu/0");
+	sit.insert("/ucla.edu/1");
+	string str = sitToString(&sit);
+	BOOST_CHECK_EQUAL(str, "/ucla.edu/1/ucla.edu/0");
+
+	str = sitToString(&sit);
+	BOOST_CHECK_EQUAL(str, "");
+
+	sit.insert("/ucla.edu/0");
+	sit.insert("/ucla.edu/1");
+	sleep(2);
+	sit.insert("/ucla.edu/0");
+	sit.insert("/ucla.edu/2");
+	sleep(3);
+	str = sitToString(&sit);
+	BOOST_CHECK_EQUAL(str, "/ucla.edu/2/ucla.edu/0");
+}
+
+