fw: add override specifier to Strategy triggers

refs #2281

Change-Id: I5357ac6a93260492900d24c8955fdd7397ef2d27
diff --git a/tests/daemon/table/measurements-accessor.cpp b/tests/daemon/table/measurements-accessor.cpp
index 8d09ca4..8668368 100644
--- a/tests/daemon/table/measurements-accessor.cpp
+++ b/tests/daemon/table/measurements-accessor.cpp
@@ -27,35 +27,26 @@
 #include "fw/strategy.hpp"
 
 #include "tests/test-common.hpp"
+#include "../fw/dummy-strategy.hpp"
 
 namespace nfd {
 namespace tests {
 
 BOOST_FIXTURE_TEST_SUITE(TableMeasurementsAccessor, BaseFixture)
 
-class MeasurementsAccessorTestStrategy : public fw::Strategy
+class MeasurementsAccessorTestStrategy : public DummyStrategy
 {
 public:
   MeasurementsAccessorTestStrategy(Forwarder& forwarder, const Name& name)
-    : Strategy(forwarder, name)
+    : DummyStrategy(forwarder, name)
   {
   }
 
   virtual
   ~MeasurementsAccessorTestStrategy()
-
   {
   }
 
-  virtual void
-  afterReceiveInterest(const Face& inFace,
-                       const Interest& interest,
-                       shared_ptr<fib::Entry> fibEntry,
-                       shared_ptr<pit::Entry> pitEntry)
-  {
-    BOOST_ASSERT(false);
-  }
-
 public: // accessors
   MeasurementsAccessor&
   getMeasurements_accessor()