How to implement UNET Test?

Hi, I am trying to implement a test for the UNET Connection, for example:

         [Test]
         public void UnetIsOn_OkSiAlListarApareceSalaCreada()
         {     
             EditorSceneManager.OpenScene("Assets/Scenes/Menu.unity");  
             GameObject obj = GameObject.Find("NetworkManager");
             manager = obj.GetComponent<NetworkManager2>(); 
            
             manager.StartMatchMaker();
 
                                     
             manager.matchMaker.CreateMatch("paridaTest123456789", 10, true, "", "", "", 0, 0, (bool success, string extendedInfo, MatchInfo responseData) =>
                 {
                     Assert.NotNull(responseData);
                 });
                     
 
             manager.matchMaker.ListMatches(0, 1000, "", true, 0, 0, (bool success, string extendedInfo, System.Collections.Generic.List<MatchInfoSnapshot> respu) =>
                 {
                     Assert.NotNull(respu, "Error  in ListMatches!");
                     Assert.True(respu[0].name.ToString() == "paridaTest123456789", "The match dont  exist!");
                 }); 
         }

The problem is that the callback are asynchronous and the test passes always, how i can wait the callback end?

Thank you so much and sorry by my english is not very good.