tests: minor code cleanups

Change-Id: I9759ba4b7eb467d4d1df4b379efad91bc4f5cc3a
diff --git a/tests/daemon/mgmt/face-manager-command-fixture.hpp b/tests/daemon/mgmt/face-manager-command-fixture.hpp
index de28f3b..ad354f3 100644
--- a/tests/daemon/mgmt/face-manager-command-fixture.hpp
+++ b/tests/daemon/mgmt/face-manager-command-fixture.hpp
@@ -57,12 +57,12 @@
   FaceManager manager;
 };
 
-class FaceManagerCommandFixture : public CommandInterestSignerFixture
+class FaceManagerCommandFixture : public InterestSignerFixture
 {
 public:
   FaceManagerCommandFixture();
 
-  ~FaceManagerCommandFixture();
+  ~FaceManagerCommandFixture() override;
 
 public:
   FaceManagerCommandNode node1; // used to test FaceManager