在 Web API 中使用 IDependencyScope 测试过滤器

Question

我有 WebApi Simple NUnit Test

[Test]
public async Task Test()
{
    var attribute = new TestAuthenticationAttribute {ApiVersions = new[] {"v1"}};
    System.Web.Http.Controllers.HttpActionContext context = CreateExecutingContext();
    var executedContext = new HttpAuthenticationContext(context, null);
    const string reasonPhrase = "ReasonPhrase";
    const string messagePhrase = "MessagePhrase";
    executedContext.ErrorResult = new AuthenticationFailureResult(reasonPhrase, messagePhrase, executedContext.Request);
    await attribute.AuthenticateAsync(executedContext, CancellationToken.None);
    var errorResult = await executedContext.ErrorResult.ExecuteAsync(new CancellationToken());
    Assert.AreEqual(HttpStatusCode.Unauthorized, errorResult.StatusCode);
}
private System.Web.Http.Controllers.HttpActionContext CreateExecutingContext()
{
    return new System.Web.Http.Controllers.HttpActionContext { ControllerContext = new HttpControllerContext {Request = new HttpRequestMessage()
    {
         RequestUri = new Uri("http://TestApi/api/v1/Test")
    }}};
}

在测试身份验证属性我有

if (context.Request.GetDependencyScope().GetService(typeof(IExternalService)) is IExternalService externalService)
            Do some actions;

如何在测试中设置/解决IExternalService依赖关系？我是否需要例如 UnityContainer，或者我可以在没有容器的情况下完成？

Answer 1

我将 HttpConfiguration 添加到我的 HttpActionContext 中，现在 Context.Request.GetDependencyScope(( 不会抛出 System.NullReferenceException。的文字。Request.GetDependencyScope((.GetService(typeof(IExternalService((为空，但现在我的测试没问题。

private System.Web.Http.Controllers.HttpActionContext CreateExecutingContext()
{
    var config = new HttpConfiguration();
    var httpActionContext =  new System.Web.Http.Controllers.HttpActionContext
    {
        ControllerContext = new HttpControllerContext
        {
            Request = new HttpRequestMessage()
            {
                RequestUri = new Uri("http://TestApi/api/v1/Test"),
            },
            Configuration = config
        }
    };
    httpActionContext.ControllerContext.Request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
    return httpActionContext;
}

如果我想解决依赖关系，我可以将依赖解析器添加到我的配置或模拟框架中