public void Test()
{
IBusinessObjectCollection collection = new BusinessObjectCollection();
collection.Add(new Student(2, "B"));
collection.Add(new Student(1, "C"));
collection.Add(new Student(3, "A"));
// 验证算法的有效性
collection.Comparer = new ComparerByID();
int id = 0;
foreach (IBusinessObject obj in collection.GetAll())
{
Assert.AreEqual <int>(++id, obj.ID);
}
// 替换成另一个算法
collection.Comparer = new ComparerByName();
string[] data = new string[3] {
"A", "B", "C"
};
int index = 0;
foreach (IBusinessObject obj in collection.GetAll())
{
Assert.AreEqual <string>(data[index++], obj.Name);
}
}