使用HttpClient.getAsync（）进行UTest[重复]

Question

我已经阅读了一些关于如何模拟或模拟HttpClient的文档，但是我不能成功地为我的单元测试复制。到目前为止，我还不能接口HttpClient，所以我选择注入HttpMessageHandler，其想法是设置它，以便返回对客户机的任何调用的响应。

internal async Task Poll(Func<TimeSpan?, HttpClient> httpClientFactory, CancellationToken cancellationToken)
{
    using (var client = httpClientFactory(_requestTimeout))
    {
        try
        {
            using (var response = await client.GetAsync(url, cancellationToken).ConfigureAwait(false))
            {
                // Do stuff with that
            }
        }
    }
}

var response = new HttpResponseMessage(httpStatusCode) { Content = responseContent };

var mockHttp = new Mock<HttpMessageHandler>();
mockHttp.Protected()
    .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
    .ReturnsAsync(response);

var client = new HttpClient(mockHttp.Object);

var mockedClientFactrory = new Mock<Func<TimeSpan?, HttpClient>>();
mockedClientFactrory.Setup(clientFactory => clientFactory(It.IsAny<TimeSpan?>())).Returns(client);

Answer 1

不需要模拟函数委托。

创建实际函数

//...

Func<TimeSpan?, HttpClient> clientFactrory = _ => client;

//...