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基本上,我有一個用於「安全」調用代表的類。 「安全」基本上意味着如果某個成員已經被處置,則該調用將被跳過。這個類的代碼:使用Moq嘲笑代表「包裝器」使用Moq
public class SafeOperationInvoker<TResponse> : IOperationInvoker<TResponse>
where TResponse : class
{
private readonly IDisposableResource _callbackOwner;
private readonly IOperationInvoker<TResponse> _next;
public SafeOperationInvoker(IDisposableResource callbackOwner, IOperationInvoker<TResponse> next)
{
_callbackOwner = callbackOwner;
_next = next;
}
public void Invoke(Action<TResponse> completedCallback)
{
//wrap the callback
_next.Invoke(response => SafeOperationCompleted(response, completedCallback));
}
private void SafeOperationCompleted(TResponse response, Action<TResponse> completedCallback)
{
//only invoke the callback if not disposed
if (_callbackOwner != null && _callbackOwner.IsDisposed)
{
return;
}
completedCallback(response);
}
}
我想是測試SafeOperationCompleted方法 - 如果callbackOwner佈置,該completedCallback不火(反之亦然)。
我創建手工假是正確的,使我的測試功能:
private class FakeOperationInvoker : IOperationInvoker<string>
{
public void Invoke(Action<string> completedCallback)
{
completedCallback("hi");
}
}
測試:
[TestMethod]
public void SafeOperationCompleted_OriginalCallback_Invoked()
{
int called = 0;
var mockOwner = new Mock<IDisposableResource>();
mockOwner.Setup(m => m.IsDisposed).Returns(false);
var invoker = new SafeOperationInvoker<string>(mockOwner.Object, new FakeOperationInvoker());
invoker.Invoke((o) => { called++;});
Assert.AreEqual(1, called, "Original callback should have been called");
}
我想要做的是使用最小起訂量來創建行爲進行模擬與FakeOperationInvoker的行爲方式相同。我怎樣才能做到這一點?