Question

我使用Rhino Mocks版本3.6，我发现here的答案在我的案例中不起作用：

    [TestMethod()]
    public void Test()
    {
        IConnected connectable = MockRepository.GenerateStub<IConnected>();
        connectable.Stub(c => c.Connect()).Do(new Action(() =>
        {
            bool test = false;
            if (!test)
                test = true;
        })).Repeat.Any();
        connectable.Stub(c => c.Connect()).Do(new Action(() => { })).Repeat.Any();
    }

我有一个InvalidOperationException：IConnected.Connect（）的结果;已经安装好了。

我用stub和mock测试它，我得到了相同的结果。

我用属性进行了相同的测试，但它也没有用。

    [TestMethod()]
    public void Test()
    {
        IConnected connectable = MockRepository.GenerateStub<IConnected>();
        connectable.Stub(c => c.IsConnected).Return(true).Repeat.Any();
        connectable.Stub(c => c.IsConnected).Return(false).Repeat.Any();
    }

它是Rhino Mocks的糟糕版本还是有回归？

唯一有效的方法是清除所有期望，但我必须将所有期望重置为相同的值：

// clear expectations, an enum defines which
_stubRepository.BackToRecord(BackToRecordOptions.All);
// go to replay again.
_stubRepository.Replay();

我的IConnected界面：

/// <summary>
/// Represents connected component management interface.
/// </summary>
public interface IConnected
{
    /// <summary>
    /// Gets the connection status.
    /// </summary>
    ConnectionState ConnectionStatus { get; }
    /// <summary>
    /// Gets a value indicating whether this instance is connected.
    /// </summary>
    /// <value>
    ///     <c>true</c> if this instance is connected; otherwise, <c>false</c>.
    /// </value>
    bool IsConnected { get; }
    /// <summary>
    /// Occurs when [connection state changed].
    /// </summary>
    event EventHandler<ConnectionStateChangeEventArgs> ConnectionStateChanged;
    /// <summary>
    /// Connects this instance.
    /// </summary>
    void Connect();
    /// <summary>
    /// Disconnects this instance.
    /// </summary>
    void Disconnect();
    /// <summary>
    /// Occurs when [reconnect].
    /// </summary>
    event EventHandler<ConnectionRetryEventArgs> RetryConnection;
}

Answer 1

您可以通过Do()处理程序为存根实现某些行为以下是针对您案例的解决方案：

var isConnected = false;

var stub = MockRepository.GenerateStub<IConnected>();

stub
    .Stub(c => c.IsConnected)
    .Do((Func<bool>)(() => isConnected))
    .Return(false);

stub
    .Stub(c => c.Connect())
    .Do((Action)(() => { isConnected = true; }));

现在只是测试：

Console.WriteLine(stub.IsConnected);
stub.Connect();
Console.WriteLine(stub.IsConnected);

但如果你重新设计你的测试以避免在你需要这样一个复杂的存根（如果有可能的话，是cource）的情况下会好得多。可能将测试分成几个测试可能是合适的。

犀牛模拟：如何在不明确所有期望的情况下改变对方法，属性或领域的期望？

1 个答案: