Hello, As the title implies, I'd like to unit test collision. I do not catch "OnCollisionEnter" in the game script (understand: no variable is set or modified like in a case of "attackDamage"). I just want to ensure that the collision occurs (that, for example, I do not disable or remove the collider component on one object). I searched google but can't find a solution. I only found this 3 years old post that says it is not possible: https://forum.unity.com/threads/unity-test-tools.218287/page-6#post-2916609 So, is it still impossible ? And if it is possible, can someone guide me how to ? While writing this I found out the "Rigidbody.SweepTest" API. Could I use an "Assert true SweepTest" ? This would not truly test OnCollisionEnter but may do the trick. [Edit] Just made a trial with "Sweep test" and it seems working. If I disable the collider the test fails and if I enable it it passes. Thanks.