如何使用WebApplicationFactory禁用服务

public class CustomWebApplicationFactory<TStartup> : WebApplicationFactory<TStartup>
    where TStartup : class
{
    protected override void ConfigureWebHost(IWebHostBuilder builder)
    {
        builder.ConfigureTestServices(services =>
        {
            // 禁用指定的服务
            services.RemoveAll<IMyService>();
        });
    }
}

public class MyServiceTests : IClassFixture<CustomWebApplicationFactory<Startup>>
{
    private readonly HttpClient _client;

    public MyServiceTests(CustomWebApplicationFactory<Startup> factory)
    {
        _client = factory.CreateClient();
    }

    [Fact]
    public async Task TestService()
    {
        // 执行测试代码
        var response = await _client.GetAsync("/api/myendpoint");

        // 断言和验证
        // ...
    }
}