ObjectBuilder 学习笔记

        [TestMethod]
        public void CanCreateInstances()                                                    //测试是否能够创建实例
        {
            Builder builder = new Builder();                                                //对象建造器
            Locator locator = CreateLocator();                                              //定位器

            ConstructorPolicy policy = new ConstructorPolicy();                             //建立一个构造策略
            policy.AddParameter(new ValueParameter<int>(12));                               //为策略加入参数
            builder.Policies.Set<ICreationPolicy>(policy, typeof(SimpleObject), null);      //将此策略加入建造器

            SimpleObject m1 = builder.BuildUp<SimpleObject>(locator, null, null);           //建造对象
            SimpleObject m2 = builder.BuildUp<SimpleObject>(locator, null, null);

            Assert.IsNotNull(m1);
            Assert.IsNotNull(m2);
            Assert.AreEqual(12, m1.IntParam);
            Assert.AreEqual(12, m2.IntParam);
            Assert.IsTrue(m1 != m2);
        }

        [TestMethod]
        public void CanCreateSingleton()
        {
            Builder builder = new Builder();
            Locator locator = CreateLocator();

            ConstructorPolicy policy = new ConstructorPolicy();
            policy.AddParameter(new ValueParameter<int>(12));
            builder.Policies.Set<ICreationPolicy>(policy, typeof(SimpleObject), null);
            //为SimpleObject添加单实例策略。
            builder.Policies.Set<ISingletonPolicy>(new SingletonPolicy(true), typeof(SimpleObject), null);  

            SimpleObject m1 = builder.BuildUp<SimpleObject>(locator, null, null);
            SimpleObject m2 = builder.BuildUp<SimpleObject>(locator, null, null);

            Assert.AreSame(m1, m2);
        }