asp.net-mvc – 用于为基于Razor的View编写单元测试的指针

因此,如果我有一个使用DBConext对象的Controller(首先是EF4 CTP代码),并且视图根据控制器上调用的动作中加载的模型中提供的项目列表呈现下拉列表,我会喜欢能够测试该元素是否填充了其中的项目.

这是我的控制器：

public class WeatherReportController : Controller,IWeatherReportController
{
    private IWeatherDb _weatherDb;

    public WeatherReportController()
    {
        this._weatherDb = new WeatherDb();
    }

    public ActionResult Index()
    {
        WeatherReportIndexModel model = new WeatherReportIndexModel
        {
            Report = new WeatherReport {
                Username = this.HttpContext.User.Identity.Name,WeatherType = new WeatherType()
            },WeatherTypeList = _weatherDb.GetAllWeatherTypes()
        };
        return View(model);
    }

}

这是我的模型：

public class WeatherReportIndexModel
{
    private IList<WeatherType> _weatherTypeList = new List<WeatherType>();
    public IList<WeatherType> WeatherTypeList { 
        get 
        {
            return _weatherTypeList;
        }
        set 
        {
            _weatherTypeList = value;
        }
    }

    [DisplayName("Type of Weather")]
    public IList<SelectListItem> WeatherTypeSelectItemList
    {
        get
        {
            int id = this.Report.WeatherType == null ? 0 : this.Report.WeatherType.WeatherTypeId;
            List<SelectListItem> selectListItems = this.WeatherTypeList.Select(weatherType => new SelectListItem
                                                                                   {
                                                                                       Value = weatherType.WeatherTypeId.ToString(),Text = weatherType.Name,Selected = weatherType.WeatherTypeId == id
                                                                                   }).ToList();
            selectListItems.Insert(0,new SelectListItem { Selected = (this.Report.WeatherType == null),Text = "Select Type of Weather",Value = "0" });
            return selectListItems;
        }
    }

    public WeatherReport Report { get; set; }
}

这是我的观点：

@inherits System.Web.Mvc.WebViewPage<Web.UI.Models.WeatherReportIndexModel>

@{
    View.Title = "Index";
    LayoutPage = "~/Views/Shared/_Layout.cshtml";
}

<h2>Index</h2>


@using (Html.BeginForm()) {
    <div>
        <fieldset>
            <legend>New Weather Report</legend>
            <div class="editor-label">
                @Html.LabelFor(m => m.Report.WeatherType.WeatherTypeId)
                @Html.DropDownListFor(m => m.Report.WeatherType.WeatherTypeId,Model.WeatherTypeSelectItemList)
    <input type="submit" value="Log On" />
            </div>
  </fieldset>
 </div>
 }

我到目前为止的测试代码如下：

[TestFixture]
public class WeatherReportViewTests
{
    [Test]
    public void Can_render_weather_report_index_view_correctly()
    {

        var mockControllerContext = new Mock<ControllerContext>();
        var mockSession = new Mock<HttpSessionStateBase>();

        mockControllerContext.Setup(p => p.HttpContext.Request.HttpMethod).Returns("POST");
        mockControllerContext.Setup(p => p.HttpContext.Request.UserHostAddress).Returns("1.1.1.1");
        mockControllerContext.Setup(p => p.HttpContext.Session).Returns(mockSession.Object);
        mockControllerContext.Setup(p => p.HttpContext.Request.LogonUserIdentity).Returns(WindowsIdentity.GetCurrent());

        var routeData = new RouteData();
        routeData.Values.Add("controller","WeatherReport");
        routeData.Values.Add("action","Index");

        var viewEngine = new CshtmlViewEngine();
        var view = viewEngine.FindView(mockControllerContext.Object,"Index","_Layout",false);
        var viewReponse = view.ToString();

        Assert.That(viewReponse,Contains.Substring("Sunny Intervals"));
    }
}

运行测试时,我只是得到一个NullReferenceException.

任何想法/指针等都是受欢迎的.我真的很想让这个工作,所以我将来可以对我的观点做TDD.

提前致谢！