public void RemoveAllChildren()
{
VFXModel modelA = ScriptableObject.CreateInstance <VFXModelA>();
VFXModel modelB0 = ScriptableObject.CreateInstance <VFXModelB>();
VFXModel modelB1 = ScriptableObject.CreateInstance <VFXModelB>();
VFXModel modelB2 = ScriptableObject.CreateInstance <VFXModelB>();
modelA.AddChild(modelB0);
modelA.AddChild(modelB1);
modelA.AddChild(modelB2);
s_logs.Clear();
modelA.RemoveAllChildren();
Assert.AreEqual(0, modelA.GetNbChildren());
Assert.IsNull(modelB0.GetParent());
Assert.IsNull(modelB1.GetParent());
Assert.IsNull(modelB2.GetParent());
Assert.AreEqual(6, s_logs.Count);
for (int i = 0; i < 6; i += 2)
{
Assert.AreEqual("OnRemoved VFXModelB", s_logs[i]);
Assert.AreEqual("OnInvalidate VFXModelA kStructureChanged", s_logs[i + 1]);
}
}