Question Weird behaviour with parameterized TestFixture

I am trying to use a parameterized TestFixture. The fixture is a class that contains many tests (validations) to be performed on prefabs in our project.

The same set of tests should be executed on each of those prefabs (and we have over 300 of those).
We are using 2018.4 so the Unity Test Framework from the package is not available to use at the moment.

Clicking on the fixture name (e:g what's highlighted in the screenshot) does nothing.
Clicking on individual tests under it starts "something" but seems to run for a long time (probably runs all tests with that name?) but eventually doesn't report any results.



Is there any open bug about this ? should it work?

Code (CSharp):

1. using System.Collections.Generic;
2. using NUnit.Framework;
3. using UnityEditor;
4. using UnityEngine;
5.  
6. namespace ContentValidation.Tests
7. {
8.     [TestFixtureSource("PrefabPaths")]
9.     [Category("Villages")]
10.     public class VillagePrefabTests
11.     {
12.         private const string PREFAB_ROOT = "xxxxxx";
13.        
14.         private readonly string villagePrefabPath;
15.         private GameObject villagePrefabInstance;
16.  
17.         public VillagePrefabTests(string villagePrefabPath)
18.         {
19.             this.villagePrefabPath = villagePrefabPath;
20.            
21.             // Instantiate, etc
22.         }
23.  
24.         // Tests go here
25.  
26.         private static IEnumerable<string> PrefabPaths
27.         {
28.             get
29.             {
30.                 var guids = AssetDatabase.FindAssets("t:prefab", new[] { PREFAB_ROOT });
31.  
32.                 foreach (var guid in guids)
33.                 {
34.                     yield return AssetDatabase.GUIDToAssetPath(guid);
35.                 }
36.             }
37.         }
38.     }
39. }

 

It was in OneTimeSetup, i was playing around trying to make it work.

 

I just verified this on Unity 2020.1 beta 6 - it works fine. I couldn't run 2019.3 for some reason, will give it another test.