Add a ScriptableObject to my Unit Test from inspector

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Hi! I have a part in my code with a lot of mathematical calculations. The used equations are ScriptableObjects and I'd like to test the calculations with the same scripted objects. Is there a way to do that? I am aware that I can just use

ScriptableObject.CreateInstance<>()

to create a new object of the type and give it the same values. However, that does invite errors and every time I change a value for one of the equations, I'd have to go through all the tests (or just one if I create a static method to return an object with needed values) to adjust the values, too.

Is there a way to use the objects that I created already within my testclass? Maybe similar to how I just drag/drop them via the Inspector while editing a scene?

If that is not possible, what would be the best alternative? Remove the (ScriptableObject-) equation-objects and create static methods to retrieve objects with the same values within my tests and other MonoBehavior-classes within my scenes?

I hope my issue is understandable, any help is appreciated.

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Answer by Hellium · Mar 23 at 05:21 PM

You can load your scriptable object from code

https://docs.unity3d.com/ScriptReference/AssetDatabase.FindAssets.html

CODE NOT TESTED

 private ScriptableObjectType LoadScriptableObject()
 {
     string scriptableObjectName = "ScriptableObjectName";
     string[] guids = AssetDatabase.FindAssets($"t:{nameof(ScriptableObjectType)} {scriptableObjectName }");
     if(guids.Length == 0)
         Assert.Fail($"No {nameof(ScriptableObjectType)} found named {scriptableObjectName}");

     if(guids.Length > 0)
         Debug.LogWarning($"More than one {nameof(ScriptableObjectType)} found named {scriptableObjectName}, taking first one");
 
      return (ScriptableObjectType) AssetDatabase.LoadAssetAtPath(AssetDatabase.GUIDToAssetPath(guids[0]), typeof(ScriptableObjectType));
 }

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AnnemarieWittig · Mar 23 at 05:42 PM 0

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Thank you so much! I only found solutions that needed the objects to be moved to a Resources folder which I didn't wanna use so this really helped so much! I added the path to the folder the objects are located in to (maybe?) increase preformance and be sure the correct object is picked.

Hellium AnnemarieWittig · Mar 23 at 05:43 PM 0

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If you already know the path of the object, then yes, you can skip the whole FindAssets method, and just call return (ScriptableObjectType) AssetDatabase.LoadAssetAtPath(assetPath, typeof(ScriptableObjectType));. Just keep in mind that moving the Scriptable Object will break your tests.

Add a ScriptableObject to my Unit Test from inspector

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