我正在尝试模拟SearchResultCollection类。但是,当我尝试拦截对PropertiesLoaded getter的调用时,我的测试将引发异常:
System.NotSupportedException: Invalid setup on a non-virtual (overridable in VB) member: x => x.PropertiesLoaded
我的代码:
Mock<SearchResultCollection> searchResultMock = new Mock<SearchResultCollection>();
// Set up collection that will be returned
string[] tempData = { "one", "two" };
searchResultMock.SetupGet(x => x.PropertiesLoaded).Returns(tempData);
有人成功 mock 过这样的类(class)吗?有问题的属性只有一个 setter/getter ,并且不是虚拟的。
//
// Summary:
// Gets the System.DirectoryServices.DirectorySearcher properties that were
// specified before the search was executed.
//
// Returns:
// An array of type System.String that contains the properties that were specified
// in the System.DirectoryServices.DirectorySearcher.PropertiesToLoad property
// collection before the search was executed.
public string[] PropertiesLoaded { get; }
最佳答案
恐怕你做不到。
就像您说的那样,该属性不是虚拟的。另一种选择是模拟接口(interface),但我检查了该类,但没有一个(根据MSDN文档)。
但是,还有一些其他隔离框架可以做到这一点。
Microsoft Moles能够做到这一点,TypeMock也是如此。
Microsoft Moles:http://research.microsoft.com/en-us/projects/moles/
TypeMock:http://www.typemock.com/