6. Asset Change Test

Learning Objectives

Exercise

1. Create a

   WandTests.cs

   class and implement

   MainScene\_CharacterReachesWandAndEquipsArmor

   test.
2. Try to observe how

   Sara Variant

   or more specifically

   puppet_sara

   GameObject changes the moment you pick up the wand.

Hints

• You can reuse code from Reach Wand Test for the logic of the character picking up the wand. Or you can try to trigger this action programmatically.
• Remember that if some Unity internal APIs are not accessible for your test you might need to add a new reference inside the

  PlayModeTests

  assembly definition.

Solution

PlayModeTests.asmdef

{    "name": "PlayModeTests",    "rootNamespace": "",    "references": [        "Unity.InputSystem",        "Unity.InputSystem.TestFramework",        "TestInputControl",        "UnityEngine.TestRunner",        "Unity.2D.Animation.Runtime"    ],    "includePlatforms": [],    "excludePlatforms": [],    "allowUnsafeCode": false,    "overrideReferences": true,    "precompiledReferences": [        "nunit.framework.dll"    ],    "autoReferenced": false,    "defineConstraints": [        "UNITY_INCLUDE_TESTS"    ],    "versionDefines": [],    "noEngineReferences": false}

WandTests.cs

using System.Collections;using NUnit.Framework;using UnityEngine;using UnityEngine.TestTools;using UnityEngine.SceneManagement;using UnityEngine.Experimental.U2D.Animation;public class WandTests{    private Transform _characterTransform;    private float _testTimeout = 25.0f;    private float _wandLocation = 21.080f;    [UnityTest]    public IEnumerator MainScene_CharacterReachesWandAndEquipsArmor()    {        SceneManager.LoadScene("Assets/Scenes/Main.unity", LoadSceneMode.Single);                // Skip first frame so Sara have a chance to appear on the screen        yield return null;        var puppet = GameObject.Find("puppet_sara");        var spriteLibrary = puppet.GetComponent<SpriteLibrary>();                Assert.AreEqual(spriteLibrary.spriteLibraryAsset.name, "Sara");        var elapsedTime = 0.0f;        yield return GoRight();        while (GetCurrentCharacterPosition() <= _wandLocation)        {            yield return null;            elapsedTime += Time.deltaTime;            if (elapsedTime > _testTimeout)            {                Assert.Fail($"Character did not reach location position in {_testTimeout} seconds.");            }        }        // Wait for Wand pickup animation to be over.        yield return new WaitForSeconds(12);        Assert.AreEqual(spriteLibrary.spriteLibraryAsset.name, "Sara_var01");    }    private float GetCurrentCharacterPosition()    {        // Get Main character's Transform which is used to manipulate position.        if (_characterTransform == null)        {            _characterTransform = GameObject.Find("Sara Variant").transform;        }        return _characterTransform.position.x;    }    private IEnumerator GoRight()    {        TestInputControl.MoveLeft = false;        yield return null;        TestInputControl.MoveRight = true;    } }