public IEnumerator DisplayTransparent() { AddExtension(MockRuntime.XR_UNITY_mock_test); MockRuntime.Instance.TestCallback = (methodName, param) => { if (methodName == nameof(OpenXRFeature.OnInstanceCreate)) { MockRuntime.SetEnvironmentBlendMode(XrEnvironmentBlendMode.Additive); } return(true); }; base.InitializeAndStart(); yield return(null); var displays = new List <XRDisplaySubsystem>(); SubsystemManager.GetInstances(displays); Assert.AreEqual(false, displays[0].displayOpaque); }