C# 在ASP.NET MVC6中设置视图引擎，以便在单元测试中与AspNet.TestHost.TestServer一起工作

如何在

ASP.NET MVC 6

中设置视图引擎，以使用

TestServer

创建的测试主机。我已经尝试实现了from

mvc6

repo：

[Fact]
public async Task CallMvc()
{
    var client = GetTestHttpClient();

    //call to HomeController.Index to get Home/Index.cshtml content
    HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, "/");

    var response = await client.SendAsync(request);
    var content = await response.Content.ReadAsStringAsync();
    PAssert.IsTrue(() => content != null);
}

private HttpClient GetTestHttpClient(Action<IServiceCollection> configureServices = null)
{
    var applicationServices = CallContextServiceLocator.Locator.ServiceProvider;
    var applicationEnvironment = applicationServices.GetRequiredService<IApplicationEnvironment>();
    var libraryManager = applicationServices.GetRequiredService<ILibraryManager>();
    var startupAssembly = typeof(Startup).Assembly;

    var applicationName = startupAssembly.GetName().Name;
    var library = libraryManager.GetLibraryInformation(applicationName);
    var applicationRoot = Path.GetDirectoryName(library.Path);

    var hostingEnvironment = new HostingEnvironment()
    {
        WebRootPath = applicationRoot
    };

    var loggerFactory = new LoggerFactory();

    var startup = new Startup();

    Action<IServiceCollection> configureServicesAction = services =>
    {
        services.AddInstance(applicationEnvironment);
        services.AddInstance<IHostingEnvironment>(hostingEnvironment);

        // Inject a custom assembly provider. Overrides AddMvc() because that uses TryAdd().
        var assemblyProvider = new FixedSetAssemblyProvider();
        assemblyProvider.CandidateAssemblies.Add(startupAssembly);
        services.AddInstance<IAssemblyProvider>(assemblyProvider);

        startup.ConfigureServices(services);
    };

    Action<IApplicationBuilder> configureApp = _ => startup.Configure(_, hostingEnvironment, loggerFactory);
    var server = TestServer.Create(configureApp, configureServicesAction);
    var httpClient = server.CreateClient();

    return httpClient;
}

我得到的

响应状态代码不表示成功：500（内部服务器错误）

并且在内部无法找到Index.cshtml视图。所有路径 以下是以下单元测试库路径或dnx路径：

var applicationBasePath = _appEnvironment.ApplicationBasePath;
var webRootPath = _env.WebRootPath;
var baseDirectory = AppDomain.CurrentDomain.BaseDirectory; 

---

使用

TestServer

从单元测试设置视图引擎和环境的方法是什么？

您定义不同环境的想法是正确的

通过使用扩展方法，我看到了一个非常优雅的解决方案：

它甚至在NuGet上，但我无法从那里开始工作。很可能，您可以将两个类MvcTestApplicationEnvironment.cs和WebHostBuilderExtensions.cs合并到您的解决方案中

然后，您可以使用以下方法设置TestServer：

var builder = TestServer.CreateBuilder();
builder.UseStartup<Startup>()
   .UseEnvironment("Testing")
   .UseApplicationPath("YourMvcApplication");
var server = new TestServer(builder);

var builder=TestServer.CreateBuilder（）；
builder.UseStartup（）
.UseEnvironment（“测试”）
.UseApplicationPath（“YourMVCaplication”）；
var服务器=新的测试服务器（构建器）；

var builder = TestServer.CreateBuilder();
builder.UseStartup<Startup>()
   .UseEnvironment("Testing")
   .UseApplicationPath("YourMvcApplication");
var server = new TestServer(builder);