public void Test_Snapshot_Behind_Stream_EmptyCache()
{
var cache = new DefaultLastValueCache <int, MockMessage>();
var subscriber = new MockTopicSubscriber();
var snapshotClient = new MockSnapshotClient
{
Data = new[]
{
new MockMessage {
Data = new byte[] { 1, 11 }
},
new MockMessage {
Data = new byte[] { 2, 22 }
},
new MockMessage {
Data = new byte[] { 3, 33 }
}
}
};
var subscription = new TopicSubscription <MockMessage>
{
Topic = "",
Deserializer = m => new MockMessage {
Data = m
},
MessageHandler = m => Debug.WriteLine("[{0},{1}]", m.Data[0], m.Data[1])
};
var synchronizer = new TopicSynchronizer <int, MockMessage, IList <MockMessage> >(
subscriber, subscription, cache,
s => snapshotClient,
(newValue, cachedValue) => newValue.Data[1] > cachedValue.Data[1],
m => m.Data[1] >= 10,
m => m.Data[0],
x => x);
Assert.IsTrue(cache.IsEmpty);
Task.Run(() =>
{
for (byte i = 50; i < 250; i++)
{
subscriber.InvokeSubscriptionAccessor("", new byte[] { 1, i });
Thread.Sleep(10);
}
});
synchronizer.Init();
Assert.AreEqual(3, cache.Count);
subscriber.InvokeSubscriptionAccessor("", new byte[] { 1, 10 });
Assert.AreEqual(3, cache.Count);
Assert.IsTrue(cache[1].Data[1] >= 50);
subscriber.InvokeSubscriptionAccessor("", new byte[] { 1, 9 });
Assert.IsTrue(cache[1].Data[1] >= 50);
}
public void Test_GetAndParseSnapshot()
{
var snapshotClient = new MockSnapshotClient
{
Data = new[]
{
new MockMessage {
Data = new byte[] { 1, 11 }
},
new MockMessage {
Data = new byte[] { 2, 22 }
},
new MockMessage {
Data = new byte[] { 3, 33 }
}
}
};
IList <MockMessage> result = snapshotClient.GetAndParseSnapshot("");
Assert.AreEqual(1, result[0].Data[0]);
Assert.AreEqual(2, result[1].Data[0]);
Assert.AreEqual(3, result[2].Data[0]);
}
