public void TestWindow()
{
SlidingWindowManager sw = new SlidingWindowManager(4, 9);
uint expired = 0;
sw.FrameExpired += delegate(uint frame) {
Assert.IsTrue(!sw.IsActive(frame));
expired++;
};
Assert.IsTrue(!sw.IsActive(0));
Assert.AreEqual(0, sw.Count);
Assert.AreEqual(0, expired);
sw.Seen(0);
Assert.AreEqual(1, sw.Count);
Assert.AreEqual(0, expired);
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(!sw.IsActive(1));
Assert.IsTrue(!sw.IsActive(sw.Capacity - 1));
sw.Seen(0);
Assert.AreEqual(1, sw.Count);
Assert.AreEqual(0, expired);
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(!sw.IsActive(1));
Assert.IsTrue(!sw.IsActive(sw.Capacity - 1));
sw.Seen(sw.Capacity - 1); // not in the expected range; should be discarded
Assert.AreEqual(1, sw.Count);
Assert.AreEqual(0, expired);
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(!sw.IsActive(1));
Assert.IsTrue(!sw.IsActive(sw.Capacity - 1));
sw.Seen(1);
Assert.AreEqual(2, sw.Count);
Assert.AreEqual(0, expired);
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(sw.IsActive(1));
Assert.IsTrue(!sw.IsActive(2));
sw.Seen(3);
Assert.AreEqual(4, sw.Count);
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(sw.IsActive(3));
Assert.IsTrue(!sw.IsActive(4));
sw.Seen(4);
Assert.AreEqual(4, sw.Count);
Assert.AreEqual(1, expired);
Assert.IsTrue(!sw.IsActive(0));
Assert.IsTrue(sw.IsActive(1));
Assert.IsTrue(sw.IsActive(4));
Assert.IsTrue(!sw.IsActive(5));
sw.Seen(5);
Assert.AreEqual(4, sw.Count);
Assert.AreEqual(2, expired);
Assert.IsTrue(!sw.IsActive(1));
Assert.IsTrue(sw.IsActive(2));
Assert.IsTrue(sw.IsActive(5));
Assert.IsTrue(!sw.IsActive(6));
sw.Seen(7);
Assert.AreEqual(4, sw.Count);
Assert.AreEqual(4, expired);
Assert.IsTrue(!sw.IsActive(3));
Assert.IsTrue(sw.IsActive(4));
Assert.IsTrue(sw.IsActive(7));
Assert.IsTrue(!sw.IsActive(8));
try
{
sw.Seen(9);
Assert.Fail("should have thrown ArgumentOutOfRange");
}
catch (ArgumentOutOfRangeException) { /* expected */ }
sw.Seen(0);
Assert.AreEqual(4, sw.Count);
Assert.AreEqual(6, expired);
Assert.IsTrue(!sw.IsActive(5));
Assert.IsTrue(sw.IsActive(6));
Assert.IsTrue(sw.IsActive(0));
Assert.IsTrue(!sw.IsActive(1));
sw.Seen(1);
Assert.AreEqual(4, sw.Count);
Assert.AreEqual(7, expired);
Assert.IsTrue(!sw.IsActive(6));
Assert.IsTrue(sw.IsActive(7));
Assert.IsTrue(sw.IsActive(1));
Assert.IsTrue(!sw.IsActive(2));
}
public DiscardingSequences(ITransportDeliveryCharacteristics tdc, uint windowSize, uint capacity)
: base(tdc)
{
sw = new SlidingWindowManager(windowSize, capacity);
sw.FrameExpired += _ExpireFrame;
}
public void TestInvalidSize()
{
try
{
SlidingWindowManager sw = new SlidingWindowManager(4, 4);
Assert.Fail("should have thrown an exception");
}
catch (ArgumentException) { /* expected */ }
try
{
SlidingWindowManager sw = new SlidingWindowManager(8, 8);
Assert.Fail("should have thrown an exception");
}
catch (ArgumentException) { /* expected */ }
}
