Asp.net mvc +Ajax +Extjs+NHibernate 系列之单元测试

概述

使用单元测试框架，Nunit。包括对controller的测试，以及moq框架的使用。

详解

1,数据库层Service的单元测试

引入：using NUnit.Framework;

    [TestFixture]
    public class SystemConfigServiceTest
    {

        [Test]
        public void GetByIdTest()
        {
            SystemConfig configExcept = new SystemConfig();
            configExcept.PkId = 78;
            SystemConfig configActual = new SystemConfigService().GetById(78);
            Assert.AreEqual(configExcept.PkId, configActual.PkId,"插叙编号为78的，如果测试不通过，请检查");
        }
    }

 类的特性标记为 TestFixture，要测试的方法特性标记为：Test，初始化测试对象，出入参数，判断返回值与你预期的值的比较。

这种测试是比较简单的单元测试。

2，Controller的单元测试

Moq 的介绍比较多http://www.cnblogs.com/haoliansheng/archive/2010/04/27/1721816.html

        [Test]
        public void IndexFirstTest()
        {
            SystemConfigController controller = new SystemConfigController();

            var httpContext = new Mock<HttpContextBase>();
            var request = new Mock<HttpRequestBase>();
            NameValueCollection queryString = new NameValueCollection();
            queryString.Add("currentIndex", "1");
            request.Setup(r => r.QueryString).Returns(queryString);
            httpContext.Setup(ht => ht.Request).Returns(request.Object);

            ControllerContext controllerContext = new ControllerContext();
            controllerContext.HttpContext = httpContext.Object;

            controller.ControllerContext = controllerContext;

            //当前为19条记录,总共有4页

            //第一页为5条记录
            //Act
            ViewResult result1 = controller.Index(1, null) as ViewResult;

            //Assert
            ViewDataDictionary viewData1 = result1.ViewData;
            List<SystemConfig> model1 = viewData1.Model as List<SystemConfig>;
            //Assert.AreEqual(1, viewData1["CurrendIndex"],"单元测试的当前页为 ，第一页");
            Assert.AreEqual(5, model1.Count, "第一页的长度应该为5,错误有可能是没有数据");
        }

  一个测试方法，

            var httpContext = new Mock<HttpContextBase>();

            var request = new Mock<HttpRequestBase>();

初始化两个对象，moq其实就是模拟两个对象。用他们来进行上下文的操作。

request.Setup(r => r.QueryString).Returns(queryString);初始化的过程

  //第一页为5条记录

            //Act

            ViewResult result1 = controller.Index(1, null) as ViewResult;

然后controller直接执行方法就可以了，在判断执行后的结果与预期的。

        [Test]
        public void Index0Test()
        {
            SystemConfigController controller = new SystemConfigController();

            var httpContext = new Mock<HttpContextBase>();
            var request = new Mock<HttpRequestBase>();
            NameValueCollection queryString = new NameValueCollection();
            queryString.Add("currentIndex", "0");
            request.Setup(r => r.QueryString).Returns(queryString);
            httpContext.Setup(ht => ht.Request).Returns(request.Object);

            ControllerContext controllerContext = new ControllerContext();
            controllerContext.HttpContext = httpContext.Object;

            controller.ControllerContext = controllerContext;

            //第0页五条数据
            ViewResult result3 = controller.Index(0, null) as ViewResult;

            ViewDataDictionary viewData3 = result3.ViewData;
            List<SystemConfig> model3 = viewData3.Model as List<SystemConfig>;
            //Assert.AreEqual(0, viewData3["CurrendIndex"]);
            Assert.AreEqual(5, model3.Count);
        }

技术要点

controller测试，moq框架的使用。