调用方法时起订量验证 属性

Question

我正在对 WebClient 的包装器进行单元测试。我想检查在调用 UploadString 时，QueryString 属性 是否设置为特定值。整个方法完成后，我不需要检查 QueryString 值。

mockedWebClient.Setup(w=>w.UploadString("url2","POST","bodyyy")).Return("response");
mockedWebClient.Setup(w=>w.QueryString).Return(new NameValueCollection());

testibject.SomeMethod();

// Verify method was called 
mockedWebClient.Verify(w=>w.UploadString("url2","POST","bodyyy");
// Also verify QueryString is set at the time UploadString is called???

Answer 1

回调

使用Setup时可以使用Callback的方法。例如：

NameValueCollection queryString = new NameValueCollection();

mockedWebClient.Setup(w=>w.QueryString).Return(queryString);

bool isExpected = false;

mockedWebClient
    .Setup(w=>w.UploadString("url2","POST","bodyyy"))
    .Callback(() => isExpected = queryString["SomeKey"] == "SomeValue")
    .Return("response");

testibject.SomeMethod();

Assert.IsTrue(isExpected);