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diff --git a/src/lib/dhcp_ddns/tests/test_utils.h b/src/lib/dhcp_ddns/tests/test_utils.h
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+++ b/src/lib/dhcp_ddns/tests/test_utils.h
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+// Copyright (C) 2014-2015 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef TEST_UTILS_H
+#define TEST_UTILS_H
+
+/// @file test_utils.h Common dhcp_ddns testing elements
+
+#include <gtest/gtest.h>
+
+
+namespace isc {
+namespace dhcp_ddns {
+
+/// @brief Returns the result of select() given an fd to check for read status.
+///
+/// @param fd_to_check The file descriptor to test
+///
+/// @return Returns less than one on an error, 0 if the fd is not ready to
+/// read, > 0 if it is ready to read. 
+int selectCheck(int fd_to_check);
+
+}; // namespace isc::dhcp_ddns;
+}; // namespace isc;
+
+#endif