PlayMode using wrong Scene

I'm currently setting up a basic Project with EditMode and PlayMode tests, that I can use for reference in the future. Whilst the EditMode tests have been a breeze, I have yet to get a PlayMode test to work. This is my Project setup:



And this is my PlayMode test code:

Code (CSharp):

1. namespace Tests
2. {
3.     public class PlayerMovementTests
4.     {
5.         [UnityTest]
6.         public IEnumerator PlayerMovementTestsWithEnumeratorPasses()
7.         {
8.             var activeScene = SceneManager.GetActiveScene();
9.             if(activeScene == null)
10.             {
11.                 Debug.Log("Couldnt get active scene!");
12.                 Assert.Fail();
13.             } else
14.             {
15.                 Debug.Log("Found active scene " + activeScene.name);
16.             }
17.             var player = GameObject.Find("Player");
18.             if (player == null)
19.             {
20.                 Debug.Log("Couldnt find player!");
21.                 Assert.Fail();
22.             }
23.             else
24.             {
25.                 PlayerMovement playerMovement = player.GetComponent(typeof(PlayerMovement)) as PlayerMovement;
26.                 Debug.Log("checking player position");
27.                 Debug.Log(player.transform.position.ToString());
28.                 Debug.Log("moving player left");
29.                 playerMovement.moveLeft();
30.                 Debug.Log("Player moved, waiting for movement to stop...");
31.  
32.                 yield return new WaitForSeconds(1f);
33.  
34.                 Debug.Log("rechecking player position");
35.                 Debug.Log(player.transform.position.ToString());
36.                 Assert.IsTrue(player.transform.position.x < 0);
37.             }
38.  
39.         }
40.     }
41. }

What I expect to happen:
The Scene "SampleScene" gets loaded, as it's the only one, and then my code finds the Entity with the name "Player" and applies the functions.

What happens: In editor mode, it appears to not load any scene at all, as it looks like this:


And the output is this;

Found active scene InitTestScene637500289106144771

UnityEngine.Debug:Log (object)

Tests.PlayerMovementTests/<PlayerMovementTestsWithEnumeratorPasses>d__0:MoveNext () (at Assets/Tests/PlayMode/PlayerMovementTests.cs:23)

UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)

Couldnt find player!

UnityEngine.Debug:Log (object)

Tests.PlayerMovementTests/<PlayerMovementTestsWithEnumeratorPasses>d__0:MoveNext () (at Assets/Tests/PlayMode/PlayerMovementTests.cs:28)

UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)

When I run it using "Run All Tests (StandaloneWindows)", it builds the project and runs it in a different window. It appears (?) to load a scene, as seen by the skyimage, but all tests fail:


this would be the output:

<i>Autoconnected Player</i> Found active scene InitTestScene637500289589567897

<i>Autoconnected Player</i> Couldnt find player!

As I'm planning on starting a new project, I want to get the testing right, but it seems to not even work for 1 scene, how would I do this with multiple ones?