asp.net-mvc - 如何对 Razor View 进行单元测试

Question

当斯科特·格思里first blogged on Razor时，他写道

The new view engine implementation will support the ability to unit test views (without requiring a controller or web-server, and can be hosted in any unit test project – no special app-domain required).

但是，我找不到关于 Razor 可测试性的其他陈述(或示例)。
有使用 CodelanguageServie 或 RazorGenerator或 some self-made renderer的指针-我不将其称为“按设计”。

目前是否可以以简单的方式对 Razor View 进行单元测试？ (在asp.net mvc应用程序中，即NancyFx在其nancy.testing-package中带来了可测试性。)

(目前我不在乎 if views should be tested or not。)

我知道有 loads of questions like this one，但是大多数都比较老。

Answer 1

我认为您可以对任何Razor View 进行单元测试，如下所示:

ViewResult v = View("~/Views/Home/Index.cshtml");
            if (string.IsNullOrEmpty(v.ViewName))
                v.ViewName = RouteData.GetRequiredString("action");
            ViewEngineResult result = null;
            StringBuilder sb = new StringBuilder();
            StringWriter textwriter = new StringWriter(sb);
            HtmlTextWriter htmlwriter = new HtmlTextWriter(textwriter);
            if (v.View == null)
            {
                result = new ViewEngineResult(new RazorView(ControllerContext,"~/Views/Home/Index.cshtml", null,false,null), new RazorViewEngine());
                v.View = result.View;
            }
            ViewContext viewContext = new ViewContext(ControllerContext, v.View, ViewData, TempData, htmlwriter);
            v.View.Render(viewContext, htmlwriter);
            string html = sb.ToString();

之后，您可以解析html以检查内容是否符合规范。