public void GetMemento_Test()
{
// arrange
MockItem item = new MockItem
{
Notes = "test",
Image = Encoding.ASCII.GetBytes("test")
};
// act
ItemMemento memento = item.GetMemento();
// assert
Assert.AreEqual("test", memento.Notes);
Assert.AreEqual(Encoding.ASCII.GetBytes("test"), memento.Image);
}
