cql test env: Keep gossiper reference on board

The reference is already available at the env initialization, but it's
not kept on the env instance itself. Will be used by the next patch.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

test/lib/cql_test_env.cc

@@ -130,6 +130,7 @@ private:
     sharded<qos::service_level_controller>& _sl_controller;
     sharded<service::migration_manager>& _mm;
     sharded<db::batchlog_manager>& _batchlog_manager;
+    sharded<gms::gossiper>& _gossiper;
 private:
     struct core_local_state {
         service::client_state client_state;
@@ -178,7 +179,8 @@ public:
             sharded<service::migration_notifier>& mnotifier,
             sharded<service::migration_manager>& mm,
             sharded<qos::service_level_controller> &sl_controller,
-            sharded<db::batchlog_manager>& batchlog_manager)
+            sharded<db::batchlog_manager>& batchlog_manager,
+            sharded<gms::gossiper>& gossiper)
             : _db(db)
             , _qp(qp)
             , _auth_service(auth_service)
@@ -188,6 +190,7 @@ public:
             , _sl_controller(sl_controller)
             , _mm(mm)
             , _batchlog_manager(batchlog_manager)
+            , _gossiper(gossiper)
     {
         adjust_rlimit();
     }
@@ -399,6 +402,10 @@ public:
         return _batchlog_manager;
     }
 
+    virtual sharded<gms::gossiper>& gossiper() override {
+        return _gossiper;
+    }
+
     virtual future<> refresh_client_state() override {
         return _core_local.invoke_on_all([] (core_local_state& state) {
             return state.client_state.maybe_update_per_service_level_params();
@@ -809,7 +816,7 @@ public:
                 // The default user may already exist if this `cql_test_env` is starting with previously populated data.
             }
 
-            single_node_cql_env env(db, qp, auth_service, view_builder, view_update_generator, mm_notif, mm, std::ref(sl_controller), bm);
+            single_node_cql_env env(db, qp, auth_service, view_builder, view_update_generator, mm_notif, mm, std::ref(sl_controller), bm, gossiper);
             env.start().get();
             auto stop_env = defer([&env] { env.stop().get(); });
 

test/lib/cql_test_env.hh

@@ -159,6 +159,8 @@ public:
 
     virtual sharded<db::batchlog_manager>& batchlog_manager() = 0;
 
+    virtual sharded<gms::gossiper>& gossiper() = 0;
+
     virtual future<> refresh_client_state() = 0;
 
     data_dictionary::database data_dictionary();