自动测试ApiController [英] Automatic testing of ApiController

问题描述

我有一个 ApiController ，并希望通过包含路由的单元测试对其进行测试.

I have an ApiController and would like to test it with unit tests including the routing.

一个例子:

[RoutePrefix("prefix")]
public class Controller : ApiController
{
    [HttpGet]
    [Route("{id1}")]
    public int Add(int id1, [FromUri] int id2)
    {
        return id1 + id2;
    }
}

我现在要测试此方法.我知道，我可以像普通方法一样对其进行测试.但是我也想通过将URL转换为方法参数来对其进行测试.

I would now like to test this method. I see, that I can test it like an ordinary method. But I would also like to test it with the translation of the URL to the method parameters.

基本上，我想进行一次自动测试，在其中调用诸如 prefix/10?id2 = 5 之类的URL并得到结果15.这在某种程度上可能吗?

Basically I would like to have an automatic test where I call a URL like prefix/10?id2=5 and get a result of 15. Is this somehow possible?

推荐答案

我为内存集成测试编写了一个小帮助程序类，可以将其称为测试服的一部分.

I wrote a little helper class for in-memory integration testing that can be called as part of the test suit.

internal interface IHttpTestServer : IDisposable {
    HttpConfiguration Configuration { get; }
    HttpClient CreateClient();
}

internal class HttpTestServer : IHttpTestServer {
    HttpServer httpServer;

    public HttpTestServer(HttpConfiguration configuration = null) {
        httpServer = new HttpServer(configuration ?? new HttpConfiguration());
    }

    public HttpConfiguration Configuration {
        get { return httpServer.Configuration; }
    }

    public HttpClient CreateClient() {
        var client = new HttpClient(httpServer);
        return client;
    }

    public void Dispose() {
        if (httpServer != null) {
            httpServer.Dispose();
            httpServer = null;
        }
    }

    public static IHttpTestServer Create(HttpConfiguration configuration = null) {
        return new HttpTestServer(configuration);
    }
}

然后会像这样使用它

[TestMethod]
public async Task HttpClient_Should_Get_OKStatus_From_InMemory_Hosting() {

    using (var server = new HttpTestServer()) {

        MyWebAPiProjectNamespace.WebApiConfig.Configure(server.Configuration);

        var client = server.CreateClient();

        string url = "http://localhost/prefix/10?id2=5";
        var expected = 15;

        var request = new HttpRequestMessage {
            RequestUri = new Uri(url),
            Method = HttpMethod.Get
        };

        request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        using (var response = await client.SendAsync(request)) {
            Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
            var result = await response.Content.ReadAsAsync<int>();
            Assert.AreEqual(expected, result);
        }
    }
}

这将配置一个内存中的测试服务器，测试可以使用其httpclient进行调用.从本质上讲，它是一个端到端集成测试.

This will configure an in-memory test server that the test can make calls to using its httpclient. It is in essence an end-to-end integration test.

这篇关于自动测试ApiController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！