tests: add StrategyTester to strategy registry

refs #3868

Change-Id: Iaeb684b03726cf8c0aa9eb3ca8e52537f892fb1b
diff --git a/tests/daemon/fw/best-route-strategy2.t.cpp b/tests/daemon/fw/best-route-strategy2.t.cpp
index d664544..29de094 100644
--- a/tests/daemon/fw/best-route-strategy2.t.cpp
+++ b/tests/daemon/fw/best-route-strategy2.t.cpp
@@ -36,6 +36,9 @@
 
 using namespace nfd::tests;
 
+typedef StrategyTester<BestRouteStrategy2> BestRouteStrategy2Tester;
+NFD_REGISTER_STRATEGY(BestRouteStrategy2Tester);
+
 BOOST_AUTO_TEST_SUITE(Fw)
 
 class BestRouteStrategy2Fixture : public UnitTestTimeFixture
@@ -60,7 +63,7 @@
 
 public:
   Forwarder forwarder;
-  StrategyTester<fw::BestRouteStrategy2> strategy;
+  BestRouteStrategy2Tester strategy;
   Fib& fib;
   Pit& pit;