public void TestCheckpointAcceptor()
{
var testCheckpoint = new TestCheckpoint();
var acceptor = new CheckpointAcceptor(testCheckpoint);
acceptor.Pending("1");
acceptor.Pending("2");
acceptor.Accept("2");
Assert.IsFalse(testCheckpoint.IsValid());
acceptor.Accept("1");
Assert.IsTrue(testCheckpoint.IsValid());
Assert.AreEqual("2", testCheckpoint.GetValue());
}
