public void AddOnePageTest()
{
CustomerFormPresentationModel model = new CustomerFormPresentationModel(new Model());
model.UpdateTotalPage(15, 0);
model.AddOnePage("漢堡");
PrivateObject target = new PrivateObject(model);
List <CategoryState> categoryState = (List <CategoryState>)target.GetFieldOrProperty("_categoriesState");
Assert.AreEqual(categoryState[0].CurrentPage, 2);
}