private Message ReceiveMessage(JID inJId, NUnit.Framework.Constraints.Constraint inMatcher)
{
Message result;
Assert.That(mQueue.TryPoll(TimeSpan.FromSeconds(5), out result), Is.True, "5秒間に何らかのメッセージが送られてこなければならない");
Assert.That(result, Is.Not.Null);
Assert.That(result.Body, inMatcher);
Assert.That(result.From.ToString(), Is.EqualTo(inJId.ToString()));
return result;
}