好吧,我正在尝试针对我为录制会话创建的包装器对 NAudio 进行单元测试,这是启动和停止录制会话的代码...
public void StartRecording(string claimNo, string ip_no, string ip_name)
{
if (this.IsRecording)
{
return;
}
this.Recordings.Add(new RecordingTrack(claimNo, ip_no, ip_name));
if (this.MicrophoneLevel == default(float))
{
this.MicrophoneLevel = .75f;
}
_aggregator.Reset();
_input = new WaveIn();
_input.WaveFormat = _waveFormat;
_input.DataAvailable += (s, args) =>
{
_writer.Write(args.Buffer, 0, args.BytesRecorded);
byte[] buffer = args.Buffer;
for (int index = 0; index < args.BytesRecorded; index += 2)
{
short sample = (short)((buffer[index + 1] << 8) | buffer[index + 0]);
float sample32 = sample / 32768f;
_aggregator.Add(sample32);
}
if (this.DataAvailable != null)
{
this.DataAvailable(s, args);
}
if (!this.IsRecording)
{
_writer.Close();
_writer.Dispose();
_writer = null;
}
};
_input.RecordingStopped += (s, args) =>
{
_input.Dispose();
_input = null;
if (this.RecordingStopped != null)
{
this.RecordingStopped(s, args);
}
};
_writer = new WaveFileWriter(this.CurrentRecording.FileName, _input.WaveFormat);
_input.StartRecording();
this.IsRecording = true;
}
public void StopRecording()
{
if (!this.IsRecording)
{
return;
}
this.CurrentRecording.Stop();
this.IsRecording = false;
_input.StopRecording();
}
...下面是我的单元测试。我正在使用 aManualResetEvent
来断言被触发的事件是否成功,并且它是这样声明的......
private ManualResetEvent _eventRaised = new ManualResetEvent(false);
...但是,问题是下面的测试只是锁定并且永远不会触发事件。您能否确认问题在于WaitOne
不允许事件触发,因为它锁定了同一个线程?
bool success = false;
_eventRaised.Reset();
var target = new RecordingSession();
target.StartRecording("1", "01", "Test Name");
target.RecordingStopped += (s, args) =>
{
success = (target.CurrentRecording.Duration.TotalSeconds > 4);
_eventRaised.Set();
};
Thread.Sleep(4000);
target.StopRecording();
_eventRaised.WaitOne();
Assert.IsTrue(success);
如果是这样,你能帮我做这个测试吗?我需要一些启示。
我已经ManualResetEvent
多次使用它来测试其他类的事件并且它有效,但这里有些不同。