c# - 模拟 Webexception，包括 Webresponse

Question

我正在尝试编写一个单元测试，其中我的 sut (authMock) 的依赖项应该抛出一个具有特定响应的 Webexception(将在 sut 中相应地解析的 json)。但是，我无法像这样使用 Moq 抛出 Webexception:

 Stream responseStream = null;
 using (var stringstream = @"{""errocode"": ""35""}".ToStream())
 {
    responseStream = stringstream;
 }
 var webresponse = new Mock<WebResponse>();
 webresponse.Setup(c => c.GetResponseStream()).Returns(responseStream);

 authMock.Setup((x) => x.UserAuthentification(It.IsAny<string>(), It.IsAny<string>())).
          Throws(new WebException("fu", null,WebExceptionStatus. TrustFailure, webresponse.Object));

 sut.GetUserAuthentification(It.IsAny<string>(), It.IsAny<string>(), (s) => response = s);

//Asserts here

Webexception 被抛出，但是当我试图在我的 sut 中捕获它并尝试读取流时，一个 ArgumentException 被抛出:

    ex.Response.GetResponseStream   error CS0103: The name 'ex' does not exist in the current context   

Answer 1

这是我对同一个问题所做的

private void StubCallerToThrowNotFoundException(string iprange)
    {
        var response = new Mock<HttpWebResponse>();
        response.Setup(c => c.StatusCode).Returns(HttpStatusCode.NotFound);

        mocker.Setup<ICaller>(x => x.GetResponseAsync(It.Is<string>(p => !p.Contains(iprange))))
            .Throws(new WebException("Some test exception", null, WebExceptionStatus.ProtocolError, response.Object));
    }