[英]Model state validation in unit tests
I am writing a unit test for a controller like this: 我正在为这样的控制器编写单元测试:
public HttpResponseMessage PostLogin(LoginModel model)
{
if (!ModelState.IsValid)
return new HttpResponseMessage(HttpStatusCode.BadRequest);
}
the model looks like: 该模型如下所示:
public class LoginModel
{
[Required]
public string Username { set; get; }
[Required]
public string Password { set; get; }
}
Then I have unit test like this one: 然后我有这样的单元测试:
[TestMethod]
public void TestLogin_InvalidModel()
{
AccountController controller = CreateAccountController();
...
var response = controller.PostLogin(new LoginModel() { });
Assert.AreEqual(HttpStatusCode.BadRequest, response.StatusCode);
}
Actually the ModelState is validated... which is weird for me as both fields are required... Could anybody advise? 实际上,ModelState已经过验证...对我来说这很奇怪,因为这两个字段都是必需的...有人可以建议吗?
The reason the model state is valid is that a new model state is created when you new up a controller. 模型状态有效的原因是,当您新建控制器时会创建一个新的模型状态。 Web API isn't doing the parameter binding for you here, so it doesn't even have a chance to add model state errors.
Web API在这里没有为您做参数绑定,因此它甚至没有机会添加模型状态错误。
If you want to keep this as a unit test, then you should add the model state errors yourself and test what happens. 如果要将其保留为单元测试,则应自己添加模型状态错误并测试会发生什么。
If you want to test that the model state would be invalid on a real request, I recommend you read this blog post: 如果要测试模型状态在实际请求中是否无效,建议您阅读此博客文章:
http://blogs.msdn.com/b/youssefm/archive/2013/01/28/writing-tests-for-an-asp-net-webapi-service.aspx http://blogs.msdn.com/b/youssefm/archive/2013/01/28/writing-tests-for-an-asp-net-webapi-service.aspx
and try testing against an in-memory server. 并尝试针对内存服务器进行测试。 One minor note for your case would be that you may want to use a StringContent instead of an ObjectContent on the request to make sure that Web API tries to deserialize and bind the body properly.
针对您的情况的一个小注释是,您可能希望在请求上使用StringContent而不是ObjectContent,以确保Web API尝试正确地反序列化并绑定主体。
TL;DR If you don't want to read the entire article provided by Youssef and want a quick solution to how to make ModelState.IsValid return false. TL; DR如果您不想阅读Youssef提供的整篇文章,并希望快速找到如何使ModelState.IsValid返回false的解决方案。 Do this.
做这个。
[TestMethod]
public void TestLogin_InvalidModel()
{
AccountController controller = CreateAccountController();
// new code added -->
controller.ModelState.AddModelError("fakeError", "fakeError");
// end of new code
...
var response = controller.PostLogin(new LoginModel() { });
Assert.AreEqual(HttpStatusCode.BadRequest, response.StatusCode);
}
Now I can imagine the CreateAccountController() looks something like this for minimum -> 现在我可以想象CreateAccountController()看起来像这样->
return new AccountApiController()
{
Request = new HttpRequestMessage(),
Configuration = new HttpConfiguration()
};
Hope this gives a quick answer for those googling :) 希望这能为那些使用Google搜索的人提供快速解答:)
As mentioned before, you need integration tests to validate the ModelState. 如前所述,您需要集成测试来验证ModelState。 So, with Asp.Net Core, I'm digging this question to add a simple solution for integrating tests with Asp.Net Core and validation of ModelState
因此,对于Asp.Net Core,我正在研究这个问题,以添加一个简单的解决方案,以将测试与Asp.Net Core集成并验证ModelState
Add the package Microsoft.AspNetCore.TestHost
and you can submit requests this simple: 添加软件包
Microsoft.AspNetCore.TestHost
,您可以通过以下简单方式提交请求:
var server = new TestServer(new WebHostBuilder().UseStartup<Startup>());
var client = server.CreateClient();
var model = new { Name = String.Empty };
var content = new StringContent(JsonConvert.SerializeObject(model), Encoding.UTF8, "application/json");
var result = await client.PostAsync("/api/yourApiEndpoint", content);
result.StatusCode.Should().Be(HttpStatusCode.BadRequest);
You can find more about it here: http://asp.net-hacker.rocks/2017/09/27/testing-aspnetcore.html 您可以在这里找到更多关于它的信息: http : //asp.net-hacker.rocks/2017/09/27/testing-aspnetcore.html
Hope it helps. 希望能帮助到你。
I used the following to validate the model state in unit test Visual studio 2017, C#, NET 4.xx 我使用以下内容在单元测试Visual Studio 2017,C#,NET 4.xx中验证模型状态
[TestMethod]
public void TestYourValidationModel()
{
var configuration = new HttpConfiguration();
configuration.Filters.Add(new ValidateModelAttribute());
// Get the quote
var controller = new YourController
{
Request = new HttpRequestMessage(),
Configuration = configuration
};
var request = YourRequestObject;
controller.Request.Content = new ObjectContent<YourRequestType>(
request, new JsonMediaTypeFormatter(), "application/json");
controller.Validate(request);
Assert.IsTrue(controller.ModelState.IsValid, "This must be valid");
}
The example is for a request in JSON format. 该示例适用于JSON格式的请求。 Substitute YourController for the name of your controller, and YourRequesType, for the object type of your request.
将YourController替换为控制器的名称,并将YourRequesType替换为请求的对象类型。
This give you the option to test your model for validation without go to the service. 这使您可以选择测试模型以进行验证,而无需使用服务。
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