public void subscription_can_be_added_ok()
{
var channel = Substitute.For <ITcpChannel>();
var transactionManager = Substitute.For <ITransactionManager>();
var client = Substitute.For <IStompClient>();
var subscription = new Subscription(client, "abc");
var sut = new StompClient(channel, transactionManager);
sut.AddSubscription(subscription);
var actual = sut.SubscriptionExists("abc");
actual.Should().BeTrue();
}
