xamarin - 如何在 Xamarin.UITest 项目中使用 WireMock.Net？

Question

我的 UITest 项目与原始 Web 服务器配合良好，但我想使用 WireMock.net 将其替换为模拟服务器.我已经在非 UITest 项目中成功使用了它。这是我在 UI 测试项目中的代码:

    [SetUp]
    public void BeforeEachTest()
    {
        app = AppInitializer.StartApp(platform);
    }
    
    [OneTimeSetUp]
    public void InitializerOnce()
    {
        _mockServer = WireMockServer.Start(new WireMockServerSettings()
        {
            Urls = new[] { "http://localhost:12345/"},
            ReadStaticMappings = true
        });
    
        _mockServer.Given(
        Request.Create().WithPath("*").UsingAnyMethod())
            .RespondWith(Response.Create()
        .WithStatusCode(HttpStatusCode.OK).WithBody("Sample response!"));
    }
    
    [OneTimeTearDown]
    public void DisposeOnce()
    {
        _mockServer?.Stop();
    }
    
    [Test]
    public async Task Test()
    {
        app.Tap(c => c.Marked("MyButton"));
    
        await Task.Delay(5000);
    
        //Assert
        Assert.IsTrue(true);
    }
    
    private WireMockServer _mockServer;

我的主要 Android 项目有以下代码:

    <Button AutomationId="MyButton" Text="Action" Clicked="Action_OnClicked"/>

    private async void Action_OnClicked(object sender, EventArgs e)
    {
        try
        {
            var client = new HttpClient();
    
            var response = await client.GetAsync("http://10.0.2.2:12345/test");// is it a correct url???
            var result = await response.Content.ReadAsStringAsync();
    
            await UserDialogs.Instance.AlertAsync($"Status:{response.StatusCode}, result:{result}");
        }
        catch (Exception exception)
        {
            await UserDialogs.Instance.AlertAsync(exception.ToString());
        }
    }

这是点击按钮的结果:

Answer 1

在单元测试中，在随机端口而不是固定端口上运行 WireMock.Net。否则，在构建服务器上运行这些单元测试时可能会遇到问题，不能 100% 保证此端口在操作系统上可用。
我的建议是在没有固定端口的情况下启动 WireMock.Net。就像:

var server = WireMockServer.Start();

// Getting the random port on which the WireMock.Net server is running, can be done like:
var port = server.Ports[0];

// Or you can also get the full URL where the WireMock.Net server is running with:
var url = server.Urls[0];

所以在你的情况下使用:

var url = _mockServer.Urls[0];
var response = await client.GetAsync(url + "/test");