我有一个我正在测试的对象会引发一个事件。使用Rhino Mocks检查它是否被提升的最佳方法是什么?
我能想到的最好(我确信它会比这更好):
public void MyCallback(object sender, EventArgs e) { _flag = true;}
[Test]
public void DoSomethingRaisesEvent() {
_flag = false;
using(_mocks.Record()) {
Expect.Call(delegeate { _obj.DoSomething();});
}
using(_mocks.Playback()) {
_obj = new SomethingDoer();
_obj.SomethingWasDoneEvent += new EventHandler(MyHandler);
Assert.IsTrue(_flag);
}
}
答案 0 :(得分:5)
我找到了this article by Phil Haack on how to test events using anonymous delegates
以下是代码,直接从他的博客中删除了那些懒得点击的人:
[Test]
public void SettingValueRaisesEvent()
{
bool eventRaised = false;
Parameter param = new Parameter("num", "int", "1");
param.ValueChanged +=
delegate(object sender, ValueChangedEventArgs e)
{
Assert.AreEqual("42", e.NewValue);
Assert.AreEqual("1", e.OldValue);
Assert.AreEqual("num", e.ParameterName);
eventRaised = true;
};
param.Value = "42"; //should fire event.
Assert.IsTrue(eventRaised, "Event was not raised");
}
答案 1 :(得分:0)
我不确定您的测试实际上是如何调用DoSomething()方法的。也许你错过了一些事情来解雇这个事件。除此之外,我认为你已经在使用Rhino Mocks测试活动的正确轨道
无论如何,这是我喜欢处理事件的另一种方式:
[Test]
public void MyEventTest()
{
IEventRaiser eventRaiser;
mockView = _mocks.CreateMock<IView>();
using (_mocks.Record())
{
mockView.DoSomethingEvent += null;
eventRaiser = LastCall.IgnoreArguments();
}
using (_mocks.Playback())
{
new Controller(mockView, mockModel);
eventRaiser.Raise(mockView, EventArgs.Empty);
}
}