public void Update_ShouldExecuteEngineSystemsInCorrectOrder()
{
// Arrange
GameTime.FixedDeltaTime = TimeSpan.FromSeconds(0.1);
var gameTime = new GameTime(TimeSpan.FromSeconds(0.15));
_gameTimeProvider.GetGameTime().Returns(gameTime);
var scene = TestSceneFactory.Create();
_sceneManager.CurrentScene.Returns(scene);
var gameLoop = GetGameLoop();
// Act
gameLoop.Update();
// Assert
Received.InOrder(() =>
{
_inputSystem.Received(1).ProcessInput(scene);
_behaviorSystem.Received(1).ProcessBehaviorFixedUpdate(scene);
_customSystem1.Received(1).ProcessFixedUpdate(scene);
_customSystem2.Received(1).ProcessFixedUpdate(scene);
_customSystem3.Received(1).ProcessFixedUpdate(scene);
_physicsSystem.Received(1).ProcessPhysics(scene);
_entityDestructionSystem.Received(1).DestroyEntitiesAfterFixedTimeStep(scene);
_behaviorSystem.Received(1).ProcessBehaviorUpdate(scene, gameTime);
_customSystem1.Received(1).ProcessUpdate(scene, gameTime);
_customSystem2.Received(1).ProcessUpdate(scene, gameTime);
_customSystem3.Received(1).ProcessUpdate(scene, gameTime);
_physicsSystem.Received(1).PreparePhysicsDebugInformation();
_audioSystem.Received(1).ProcessAudio(scene);
_animationSystem.Received(1).ProcessAnimations(scene, gameTime);
_renderingSystem.Received(1).RenderScene(scene);
_entityDestructionSystem.Received(1).DestroyEntitiesAfterFullFrame(scene);
});
}
