refactor: setRange in tests (#1763)

There are a few files that cannot move the setRange into constructor of
the test because either the place that calls setRange matters or tests
checks range doesn't exist

tests/common/util/HandlerBaseTestFixture.hpp

@@ -24,6 +24,8 @@
 #include "util/MockETLServiceTestFixture.hpp"
 #include "util/MockPrometheus.hpp"
 
+#include <gmock/gmock.h>
+
 /**
  * @brief Fixture with an mock backend and an embedded boost::asio context.
  *