[5074] Set environment variable for pid files within libkea-process tests.

src/lib/process/tests/run_unittests.cc

@@ -1,11 +1,11 @@
-// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2016 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/.
 
 #include <log/logger_support.h>
-
+#include <process/d2_log.h>
 #include <gtest/gtest.h>
 
 int
@@ -13,6 +13,9 @@ main(int argc, char* argv[]) {
     ::testing::InitGoogleTest(&argc, argv);
     isc::log::initLogger();
 
+    // Override --localstatedir value for PID files
+    setenv("KEA_PIDFILE_DIR", TEST_DATA_BUILDDIR, 1);
+
     int result = RUN_ALL_TESTS();
 
     return (result);