public void TestHighLowBuffer()
{
List <int> output = new List <int>();
ManualResetEvent sinkWaitHandle = new ManualResetEvent(false);
HiLowBuffer <int> buffer = new HiLowBuffer <int>(1, l =>
{
sinkWaitHandle.WaitOne();
output.Add(l);
}, new InMemoryQueue <int>(100));
Task.Run(() =>
{
for (int i = 0; i < 2; i++)
{
buffer.Add(i);
}
});
//shoud block
Thread.Sleep(500);
buffer.Requeue(-1, false);
sinkWaitHandle.Set();
Thread.Sleep(500);
Assert.Equal(3, output.Count);
Assert.Equal(-1, output[2]); //Requeue item come out last
}
public void TestHighLowBufferWithPersistentQueue()
{
List <int> output = new List <int>();
ManualResetEvent sinkWaitHandle = new ManualResetEvent(false);
var dataDir = Path.Combine(AppContext.BaseDirectory, Guid.NewGuid().ToString());
var queueDir = Path.Combine(dataDir, "HighLowTest");
Directory.CreateDirectory(queueDir);
if (Directory.Exists(queueDir))
{
Directory.Delete(queueDir, true);
}
BinarySerializer <int> integerSerializer = new BinarySerializer <int>(
(w, i) => w.Write(i),
(r) => r.ReadInt32());
FilePersistentQueue <int> queue = new FilePersistentQueue <int>(
100,
queueDir,
integerSerializer,
new ProtectedAppDataFileProvider(dataDir),
NullLogger.Instance);
HiLowBuffer <int> buffer = new HiLowBuffer <int>(1, null, l =>
{
sinkWaitHandle.WaitOne();
output.Add(l);
}, queue);
Task.Run(() =>
{
for (int i = 0; i < 2; i++)
{
buffer.Add(i);
}
});
//should block
Thread.Sleep(500);
buffer.Requeue(-1, false);
sinkWaitHandle.Set();
Thread.Sleep(500);
Assert.Equal(3, output.Count);
Assert.Equal(-1, output[2]); //Requeue item come out last
Assert.True(File.Exists(Path.Combine(queueDir, "index")));
}
public void TestHighLowBufferWithPersistentQueue()
{
List <int> output = new List <int>();
ManualResetEvent sinkWaitHandle = new ManualResetEvent(false);
string directory = Path.Combine(FilePersistenceQueueTest.QueueDirectory, "HighLowTest");
if (Directory.Exists(directory))
{
Directory.Delete(directory, true);
}
BinarySerializer <int> integerSerializer = new BinarySerializer <int>(
(w, i) => w.Write(i),
(r) => r.ReadInt32());
FilePersistentQueue <int> queue = new FilePersistentQueue <int>(
100,
directory,
integerSerializer);
HiLowBuffer <int> buffer = new HiLowBuffer <int>(1, l =>
{
sinkWaitHandle.WaitOne();
output.Add(l);
}, queue);
Task.Run(() =>
{
for (int i = 0; i < 2; i++)
{
buffer.Add(i);
}
});
//shoud block
Thread.Sleep(500);
buffer.Requeue(-1, false);
sinkWaitHandle.Set();
Thread.Sleep(500);
Assert.Equal(3, output.Count);
Assert.Equal(-1, output[2]); //Requeue item come out last
Assert.True(File.Exists(Path.Combine(directory, "index")));
}
