public void OnDisableShould_DeRegisterForSettingsModificationEvents()
{
var len = m_Settings.OnModification.GetInvocationList().Length;
m_Manager.Initialize(m_Settings);
m_Manager.OnEnable();
m_Manager.OnEnable();
m_Manager.OnEnable();
Assert.Greater(m_Settings.OnModification.GetInvocationList().Length, len);
m_Manager.OnDisable();
Assert.AreEqual(len, m_Settings.OnModification.GetInvocationList().Length);
}