/// <summary>
/// Tests saving, loading and updating of prefabs.
/// </summary>
private static void UnitTest4_Prefabs()
{
if (!EditorApplication.IsProjectLoaded)
{
Debug.LogWarning("Skipping unit test as no project is loaded.");
return;
}
if (EditorApplication.IsSceneModified())
{
Debug.LogWarning("Cannot perform unit test as the current scene is modified.");
return;
}
Action PrintSceneState = () =>
{
SceneObject root = Scene.Root;
Stack <SceneObject> todo = new Stack <SceneObject>();
todo.Push(root);
StringBuilder output = new StringBuilder();
while (todo.Count > 0)
{
SceneObject so = todo.Pop();
int numChildren = so.GetNumChildren();
for (int i = numChildren - 1; i >= 0; i--)
{
SceneObject child = so.GetChild(i);
output.AppendLine(child.Name);
todo.Push(child);
}
}
Debug.Log(output);
};
// Disabled because it's a slow test, enable only when relevant (or when a build machine is set up)
return;
string oldScene = Scene.ActiveSceneUUID;
Scene.Clear();
try
{
// Simple scene save & load
{
{
// unitTest4Scene_0.prefab:
// so0 (Comp1)
// - so0_0
// - so0_1 (Comp1)
// - so0_1_0 (Comp1)
// so1 (Comp2)
// - so1_0
SceneObject so0 = new SceneObject("so0");
SceneObject so1 = new SceneObject("so1");
SceneObject so0_0 = new SceneObject("so0_0");
SceneObject so0_1 = new SceneObject("so0_1");
SceneObject so1_0 = new SceneObject("so1_0");
SceneObject so0_1_0 = new SceneObject("so0_1_0");
so0_0.Parent = so0;
so0_1.Parent = so0;
so1_0.Parent = so1;
so0_1_0.Parent = so0_1;
so0_1_0.LocalPosition = new Vector3(10.0f, 15.0f, 20.0f);
so0_1.LocalPosition = new Vector3(1.0f, 2.0f, 3.0f);
so1_0.LocalPosition = new Vector3(0, 123.0f, 0.0f);
UT1_Component1 comp0 = so0.AddComponent <UT1_Component1>();
UT1_Component2 comp1 = so1.AddComponent <UT1_Component2>();
UT1_Component1 comp1_1 = so0_1.AddComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.AddComponent <UT1_Component1>();
comp0.otherSO = so0_1_0;
comp0.otherComponent = comp1;
comp1_1.b = "originalValue2";
comp0_1_0.b = "testValue";
comp0_1_0.otherSO = so0;
comp0_1_0.otherComponent2 = comp0;
EditorApplication.SaveScene("unitTest4Scene_0.prefab");
}
{
EditorApplication.LoadScene("unitTest4Scene_0.prefab");
SceneObject sceneRoot = Scene.Root;
SceneObject so0 = sceneRoot.FindChild("so0", false);
SceneObject so1 = sceneRoot.FindChild("so1", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
Assert(so0_0 != null);
Assert(so0_1 != null);
Assert(so0_1_0 != null);
UT1_Component1 comp0 = so0.GetComponent <UT1_Component1>();
UT1_Component2 comp1 = so1.GetComponent <UT1_Component2>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
Assert(comp0 != null);
Assert(comp1 != null);
Assert(comp0_1_0 != null);
Assert(comp0_1_0.b == "testValue");
Assert(comp0.otherSO == so0_1_0);
Assert(comp0.otherComponent == comp1);
Assert(comp0_1_0.otherSO == so0);
Assert(comp0_1_0.otherComponent2 == comp0);
}
}
Debug.Log("Passed stage 1");
// Load & save a scene that contains a prefab and references its objects
{
{
// unitTest4Scene_1.prefab:
// parentSO0
// - [unitTest4Scene_0.prefab]
// parentSO1
// - parentSO1_0 (Comp1)
Scene.Clear();
SceneObject parentSO0 = new SceneObject("parentSO0", false);
SceneObject parentSO1 = new SceneObject("parentSO1", false);
SceneObject parentSO1_0 = new SceneObject("parentSO1_0", false);
parentSO1_0.Parent = parentSO1;
parentSO0.LocalPosition = new Vector3(50.0f, 50.0f, 50.0f);
UT1_Component1 parentComp1_0 = parentSO1_0.AddComponent <UT1_Component1>();
Prefab scene0Prefab = ProjectLibrary.Load <Prefab>("unitTest4Scene_0.prefab");
SceneObject prefabInstance = scene0Prefab.Instantiate();
prefabInstance.Parent = parentSO0;
prefabInstance.LocalPosition = Vector3.Zero;
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
parentComp1_0.otherSO = so1_0;
parentComp1_0.otherComponent2 = comp0_1_0;
EditorApplication.SaveScene("unitTest4Scene_1.prefab");
}
{
EditorApplication.LoadScene("unitTest4Scene_1.prefab");
SceneObject parentSO0 = Scene.Root.FindChild("parentSO0", false);
SceneObject parentSO1 = Scene.Root.FindChild("parentSO1", false);
SceneObject parentSO1_0 = parentSO1.FindChild("parentSO1_0", false);
UT1_Component1 parentComp1_0 = parentSO1_0.GetComponent <UT1_Component1>();
SceneObject prefabInstance = parentSO0.GetChild(0);
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
Assert(parentComp1_0.otherSO == so1_0);
Assert(parentComp1_0.otherComponent2 == comp0_1_0);
}
}
Debug.Log("Passed stage 2");
// Modify prefab, reload the scene and ensure it is updated with modified prefab
{
{
// unitTest4Scene_0.prefab:
// so0
// - so0_1 (Comp1)
// - so0_1_0 (Comp1)
// so1 (Comp1, Comp2)
// - so1_0
// - so1_1
Scene.Load("unitTest4Scene_0.prefab");
SceneObject sceneRoot = Scene.Root;
SceneObject so0 = sceneRoot.FindChild("so0", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1 = sceneRoot.FindChild("so1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
SceneObject so1_1 = new SceneObject("so1_1");
so1_1.Parent = so1;
so0.RemoveComponent <UT1_Component1>();
UT1_Component1 comp1 = so1.AddComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
so0_0.Destroy();
comp1.otherSO = so1_0;
comp1.otherComponent2 = comp0_1_0;
comp0_1_0.otherSO = so1_1;
comp0_1_0.otherComponent2 = comp1;
comp0_1_0.a = 123;
comp0_1_0.b = "modifiedValue";
so1.Name = "so1_modified";
so1.LocalPosition = new Vector3(0, 999.0f, 0.0f);
EditorApplication.SaveScene("unitTest4Scene_0.prefab");
}
{
EditorApplication.LoadScene("unitTest4Scene_1.prefab");
SceneObject parentSO0 = Scene.Root.FindChild("parentSO0", false);
SceneObject parentSO1 = Scene.Root.FindChild("parentSO1", false);
SceneObject parentSO1_0 = parentSO1.FindChild("parentSO1_0", false);
UT1_Component1 parentComp1_0 = parentSO1_0.GetComponent <UT1_Component1>();
SceneObject prefabInstance = parentSO0.GetChild(0);
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1_modified", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
SceneObject so1_1 = so1.FindChild("so1_1", false);
UT1_Component1 comp0 = so0.GetComponent <UT1_Component1>();
UT1_Component1 comp1 = so1.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
Assert(parentComp1_0.otherSO == so1_0);
Assert(parentComp1_0.otherComponent2 == comp0_1_0);
Assert(so1_1 != null);
Assert(so0_0 == null);
Assert(comp0 == null);
Assert(comp0_1_0.otherSO == so1_1);
Assert(comp0_1_0.otherComponent2 == comp1);
Assert(comp0_1_0.a == 123);
Assert(comp0_1_0.b == "modifiedValue");
Assert(comp1.otherSO == so1_0);
Assert(comp1.otherComponent2 == comp0_1_0);
Assert(MathEx.ApproxEquals(so1.LocalPosition.y, 999.0f));
}
}
Debug.Log("Passed stage 3");
// Make instance specific changes to the prefab, modify the prefab itself and ensure
// both changes persist
{
// Create new scene referencing the prefab and make instance modifications
{
// unitTest4Scene_2.prefab:
// parent2SO0
// - [unitTest4Scene_0.prefab]
// parent2SO1
// - parent2SO1_0 (Comp1)
// unitTest4Scene_0.prefab (unitTest4Scene_2.prefab instance):
// so0 (Comp1(INSTANCE))
// - so0_0 (INSTANCE)
// - so0_1 (Comp1)
// - so0_1_0 (Comp1)
// so1 (Comp2)
// - so1_0
Scene.Clear();
SceneObject parent2SO0 = new SceneObject("parent2SO0");
SceneObject parent2SO1 = new SceneObject("parent2SO1");
SceneObject parent2SO1_0 = new SceneObject("parent2SO1_0");
parent2SO1_0.Parent = parent2SO1;
UT1_Component1 parentComp1_0 = parent2SO1_0.AddComponent <UT1_Component1>();
Prefab scene0Prefab = ProjectLibrary.Load <Prefab>("unitTest4Scene_0.prefab");
SceneObject prefabInstance = scene0Prefab.Instantiate();
prefabInstance.Parent = parent2SO0;
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1_modified", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so1_1 = so1.FindChild("so1_1", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
UT1_Component2 comp1 = so1.GetComponent <UT1_Component2>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1 = so0_1.GetComponent <UT1_Component1>();
SceneObject so0_0 = new SceneObject("so0_0");
so0_0.Parent = so0;
UT1_Component1 comp0 = so0.AddComponent <UT1_Component1>();
so1.RemoveComponent <UT1_Component1>();
so1_1.Destroy();
comp0.otherSO = so0_1_0;
comp0.otherComponent = comp1;
parentComp1_0.otherSO = so1_0;
parentComp1_0.otherComponent2 = comp0_1_0;
comp0_1_0.otherSO = parent2SO1_0;
comp0_1_0.otherComponent2 = parentComp1_0;
comp0_1_0.b = "instanceValue";
comp0_1.b = "instanceValue2";
EditorApplication.SaveScene("unitTest4Scene_2.prefab");
}
Debug.Log("Passed stage 4.1");
// Reload the scene and ensure instance modifications remain
{
EditorApplication.LoadScene("unitTest4Scene_2.prefab");
SceneObject root = Scene.Root;
SceneObject parent2SO0 = root.FindChild("parent2SO0", false);
SceneObject parent2SO1 = root.FindChild("parent2SO1", false);
SceneObject parent2SO1_0 = parent2SO1.FindChild("parent2SO1_0", false);
SceneObject prefabInstance = parent2SO0.GetChild(0);
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1_modified", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so1_1 = so1.FindChild("so1_1", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
UT1_Component1 parentComp1_0 = parent2SO1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp0 = so0.GetComponent <UT1_Component1>();
UT1_Component2 comp1 = so1.GetComponent <UT1_Component2>();
UT1_Component1 comp11 = so1.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1 = so0_1.GetComponent <UT1_Component1>();
Assert(so0_0 != null);
Assert(comp0 != null);
Assert(so1_1 == null);
Assert(comp11 == null);
Assert(comp0.otherSO == so0_1_0);
Assert(comp0.otherComponent == comp1);
Assert(parentComp1_0.otherSO == so1_0);
Assert(parentComp1_0.otherComponent2 == comp0_1_0);
Debug.Log(comp0_1_0.otherSO == null);
if (comp0_1_0.otherSO != null)
{
Debug.Log(comp0_1_0.otherSO.InstanceId + " - " + parent2SO1_0.InstanceId);
}
Assert(comp0_1_0.otherSO == parent2SO1_0);
Assert(comp0_1_0.otherComponent2 == parentComp1_0);
Assert(comp0_1_0.b == "instanceValue");
Assert(comp0_1.b == "instanceValue2");
}
Debug.Log("Passed stage 4.2");
// Load original scene and ensure instance modifications didn't influence it
{
EditorApplication.LoadScene("unitTest4Scene_1.prefab");
SceneObject parentSO0 = Scene.Root.FindChild("parentSO0", false);
SceneObject parentSO1 = Scene.Root.FindChild("parentSO1", false);
SceneObject parentSO1_0 = parentSO1.FindChild("parentSO1_0", false);
UT1_Component1 parentComp1_0 = parentSO1_0.GetComponent <UT1_Component1>();
SceneObject prefabInstance = parentSO0.GetChild(0);
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1_modified", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
SceneObject so1_1 = so1.FindChild("so1_1", false);
UT1_Component1 comp0 = so0.GetComponent <UT1_Component1>();
UT1_Component1 comp1 = so1.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1 = so0_1.GetComponent <UT1_Component1>();
Assert(parentComp1_0.otherSO == so1_0);
Assert(parentComp1_0.otherComponent2 == comp0_1_0);
Assert(so1_1 != null);
Assert(so0_0 == null);
Assert(comp0 == null);
Assert(comp0_1_0.otherSO == so1_1);
Assert(comp0_1_0.otherComponent2 == comp1);
Assert(comp0_1_0.a == 123);
Assert(comp0_1_0.b == "modifiedValue");
Assert(comp1.otherSO == so1_0);
Assert(comp1.otherComponent2 == comp0_1_0);
Assert(comp0_1.b == "originalValue2");
Assert(MathEx.ApproxEquals(so1.LocalPosition.y, 999.0f));
}
Debug.Log("Passed stage 4.3");
// Modify prefab and ensure both prefab and instance modifications remain
{
// unitTest4Scene_0.prefab:
// so0 (Comp1)
// - so0_1
// - so0_1_0 (Comp1)
// so1 (Comp1, Comp2)
// - so1_1
// - so1_2 (Comp1)
// unitTest4Scene_0.prefab (unitTest4Scene_2.prefab instance):
// so0 (Comp1)
// - so0_0
// - so0_1 (Comp1)
// - so0_1_0 (Comp1)
// so1 (Comp2)
// - so1_2 (Comp1)
Scene.Load("unitTest4Scene_0.prefab");
SceneObject sceneRoot = Scene.Root;
SceneObject so0 = sceneRoot.FindChild("so0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1 = sceneRoot.FindChild("so1_modified", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
SceneObject so1_2 = new SceneObject("so1_2");
so1_2.Parent = so1;
so0.AddComponent <UT1_Component1>();
so0_1.RemoveComponent <UT1_Component1>();
so1_0.Destroy();
UT1_Component1 comp3 = so1_2.AddComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
comp0_1_0.b = "modifiedValueAgain";
so1.Name = "so1_modifiedAgain";
comp3.otherSO = so0_1;
comp3.otherComponent2 = comp0_1_0;
EditorApplication.SaveScene("unitTest4Scene_0.prefab");
}
Debug.Log("Passed stage 4.4");
// Reload the scene and ensure both instance and prefab modifications remain
{
EditorApplication.LoadScene("unitTest4Scene_2.prefab");
SceneObject root = Scene.Root;
SceneObject parent2SO0 = root.FindChild("parent2SO0", false);
SceneObject parent2SO1 = root.FindChild("parent2SO1", false);
SceneObject parent2SO1_0 = parent2SO1.FindChild("parent2SO1_0", false);
SceneObject prefabInstance = parent2SO0.GetChild(0);
SceneObject so0 = prefabInstance.FindChild("so0", false);
SceneObject so1 = prefabInstance.FindChild("so1_modifiedAgain", false);
SceneObject so0_0 = so0.FindChild("so0_0", false);
SceneObject so0_1 = so0.FindChild("so0_1", false);
SceneObject so1_0 = so1.FindChild("so1_0", false);
SceneObject so1_1 = so1.FindChild("so1_1", false);
SceneObject so1_2 = so1.FindChild("so1_2", false);
SceneObject so0_1_0 = so0_1.FindChild("so0_1_0", false);
UT1_Component1 parentComp1_0 = parent2SO1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp0 = so0.GetComponent <UT1_Component1>();
UT1_Component2 comp1 = so1.GetComponent <UT1_Component2>();
UT1_Component1 comp11 = so1.GetComponent <UT1_Component1>();
UT1_Component1 comp0_1_0 = so0_1_0.GetComponent <UT1_Component1>();
UT1_Component1 comp3 = so1_2.AddComponent <UT1_Component1>();
// Check instance modifications (they should override any prefab modifications)
Assert(so0_0 != null);
Assert(comp0 != null);
Assert(so1_1 == null);
Assert(comp11 == null);
Assert(comp0.otherSO == so0_1_0);
Assert(comp0.otherComponent == comp1);
Assert(parentComp1_0.otherSO == so1_0);
Assert(parentComp1_0.otherComponent2 == comp0_1_0);
Assert(comp0_1_0.otherSO == parent2SO1_0);
Assert(comp0_1_0.otherComponent2 == parentComp1_0);
Assert(comp0_1_0.b == "instanceValue");
// Check prefab modifications
Assert(so1_0 == null);
Assert(so1.Name == "so1_modifiedAgain");
Assert(comp3.otherSO == so0_1);
Assert(comp3.otherComponent2 == comp0_1_0);
}
Debug.Log("Passed stage 4.5");
}
}
catch
{
PrintSceneState();
throw;
}
finally
{
if (!string.IsNullOrEmpty(oldScene))
{
Scene.Load(ProjectLibrary.GetPath(oldScene));
}
else
{
Scene.Clear();
}
ProjectLibrary.Delete("unitTest4Scene_0.prefab");
ProjectLibrary.Delete("unitTest4Scene_1.prefab");
ProjectLibrary.Delete("unitTest4Scene_2.prefab");
}
}
