using System;
using System.Data;
using System.Reflection;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using ALite.Core.UnitTestSimple;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Moq;namespace ALite.Core.Tests
{
    [TestClass]
    public class OrderUnitTest
    {
        private TestContext _testContextInstance;
        public TestContext TestContext
        {
            get { return _testContextInstance; }
            set { _testContextInstance = value; }
        }
        [TestMethod]
        [Description("A normal unit testing for the method 'Submit.'")]
        public void TestNormalSubmit()
        {
            // Mock
            var mockPersistence = new Mock<IPersistence>();
            mockPersistence.Setup(e => e.Save(It.IsAny<Order>())).Returns(true);// Arrange
            var target = new Order
                             {
                                 PesistenceHandler = mockPersistence.Object
                             };
            const bool expected = true;// Action
            bool result = target.Submit();// Assert
            Assert.AreEqual(expected, result);
        }
        [TestMethod]// 是且只有是抛出DataException类型的异常时才会算通过，即便是子类也会判断为未通过
        [ExpectedException(typeof(DataException))]
        [Description("A unit testing for the method 'Submit' with a DataException when using the property PersistenceHandler")]
        public void TestSubmitWithException()
        {
            // Mock
            var mockPersistence = new Mock<IPersistence>();
            mockPersistence.Setup(e => e.Save(It.IsAny<Order>())).Throws(new DataException());// Arrange
            var target = new Order
            {
                PesistenceHandler = mockPersistence.Object
            };
            const bool expected = true;// Action
            bool result = target.Submit();// Assert
            Assert.AreEqual(expected, result);
        }
        [TestMethod]
        [Description("举例说明如何测试私有方法和使用TestProperty属性")]
        [TestProperty("City", "深圳")]
        [TestProperty("Province", "广东")]
        [TestCategory("Category1")]
        public void TestCountTotalPrice()
        {
            var method = Util.GetCallingMethod(false, 0);
            var attributeType = typeof(TestPropertyAttribute);
            var attributes = method.GetCustomAttributes(attributeType, true);
            var city = ((TestPropertyAttribute)attributes[0]).Value;
            var province = ((TestPropertyAttribute)attributes[1]).Value;
            var address = string.Format("{0} {1}", province, city);// Mock
            var mockDeliveryManageHandler = new Mock<IDeliveryManage>();
            mockDeliveryManageHandler.Setup(e => e.CountDeliveryFee(It.IsAny<string>())).Returns(10.00m);// Arrange
            var orderDetails1 = new OrderDetail()
                                   {
                                       TotalPrice = 10.00m
                                   };
            var orderDetails2 = new OrderDetail()
                                    {
                                        TotalPrice = 20.00m
                                    };
            var orderDetails3 = new OrderDetail()
                                    {
                                        TotalPrice = 30.00m
                                    };
            var details = new List<OrderDetail> {orderDetails1, orderDetails2, orderDetails3};
            var target = new Order()
                             {
                                 Destination = address,
                                 DeliveryManageHandler = mockDeliveryManageHandler.Object,
                                 OrderDetails = details
                             };const decimal expected = 70m;// Action
            // 通过反射测试私有方法，比IDE提供的方式会更灵活一些
            var typeTarget = typeof (Order);
            var methodTarget = typeTarget.GetMethod("CountTotalPrice", BindingFlags.Instance | BindingFlags.NonPublic);
            var objResult = methodTarget.Invoke(target, null);// Assert
            Assert.AreEqual(expected, (decimal)objResult);
        }
        [DeploymentItem("1.1-ALite.Core.Tests\\1.xml"), TestMethod]
        [DataSource("Microsoft.VisualStudio.TestTools.DataSource.XML", "|DataDirectory|\\1.xml", "Address", DataAccessMethod.Sequential)]
        [Description("举例说明如何使用DataSourceAttribute属性, 该单元测试会读取数据源中的每一行数据进行测试")]
        public void TestCountTotalPriceWithVarious()
        {
            var province = this._testContextInstance.DataRow["Province"];
            var city = this._testContextInstance.DataRow["City"];
            var fee = Convert.ToDecimal(this._testContextInstance.DataRow["Fee"]);
            var address = string.Format("{0} {1}", province, city);// Mock
            var mockDeliveryManageHandler = new Mock<IDeliveryManage>();
            mockDeliveryManageHandler.Setup(e => e.CountDeliveryFee(It.IsAny<string>())).Returns(10.00m);// Arrange
            var orderDetails1 = new OrderDetail()
            {
                TotalPrice = 10.00m
            };
            var orderDetails2 = new OrderDetail()
            {
                TotalPrice = 20.00m
            };
            var orderDetails3 = new OrderDetail()
            {
                TotalPrice = 30.00m
            };
            var details = new List<OrderDetail> { orderDetails1, orderDetails2, orderDetails3 };
            var target = new Order()
            {
                Destination = address,
                DeliveryManageHandler = mockDeliveryManageHandler.Object,
                OrderDetails = details
            };decimal expected = fee;// Action
            // 通过反射测试私有方法，比IDE提供的方式会更灵活一些
            var typeTarget = typeof(Order);
            var methodTarget = typeTarget.GetMethod("CountTotalPrice", BindingFlags.Instance | BindingFlags.NonPublic);
            var objResult = methodTarget.Invoke(target, null);// Assert
            Assert.AreEqual(expected, (decimal)objResult);
        }
    }
}