public void DefaultSignalContext()
{
var entity = Object.Instantiate(new GameObject());
var recorder = new Recorder();
var handler = (ESHandler <GameObject, int>)((a1, a2) => { recorder.Record("First", a1, a2); });
ES.On(entity).Add(handler);
Assert.AreEqual(1, ES.On(entity).Count);
ES.On(entity).Send(1);
ES.Dispose();
Assert.AreEqual(0, ES.On(entity).Count);
recorder.Verify("First", entity, 1);
}