public void PostElementThenTestForElement()
{
int tmp;
var p = new Port<int> ();
; var elem = new PortElement<int> (99);
p.PostElement (elem);
Assert.AreEqual (1, p.ItemCount, "#1");
var res = p.TestForElement ();
Assert.AreEqual (elem, res, "#2");
Assert.AreEqual (0, p.ItemCount, "#3");
Assert.AreEqual (null, res.Owner, "#4");
}
public void PostElementPrependOnTheQueue()
{
Port<int> p = new Port<int> ();
p.Post (10);
p.Post (20);
p.PostElement (new PortElement<int> (30));
Assert.AreEqual (30, (int)p, "#1");
Assert.AreEqual (10, (int)p, "#2");
Assert.AreEqual (20, (int)p, "#3");
}
public void PostElementBad()
{
var p = new Port<int> ();
; var elem = new PortElement<double> (99);
try {
p.PostElement (elem);
Assert.Fail ("#1");
} catch (InvalidCastException) {} /*LAMEIMPL, stupid exception to throw*/
try {
p.PostElement (null);
Assert.Fail ("#2");
} catch (NullReferenceException) {} /*LAMEIMPL, stupid exception to throw*/
}
public void PostElementCausesLinking()
{
var p = new Port<int> ();
p.Post (10);
p.PostElement (new PortElement<int> (20));
p.Post (30);
var r0 = p.TestForElement ();
var r1 = r0.Next;
Assert.IsNotNull (r1, "#1");
var r2 = r1.Next;
Assert.IsNotNull (r2, "#1");
Assert.AreEqual (r1, r2.Previous, "#2");
Assert.AreEqual (r2, r1.Previous, "#3");
}
public void LinkStateAfterPostElement()
{
Port<int> p = new Port<int> ();
p.Post (10);
p.Post (20);
p.PostElement (new PortElement<int> (30));
p.PostElement (new PortElement<int> (40));
IPortReceive rec = p;
IPortElement a = (IPortElement)rec.GetItems () [0];
IPortElement b = (IPortElement)rec.GetItems () [1];
IPortElement c = (IPortElement)rec.GetItems () [2];
IPortElement d = (IPortElement)rec.GetItems () [3];
Assert.AreEqual (b, a.Next, "#1");
Assert.AreEqual (c, b.Next, "#2");
Assert.AreEqual (d, c.Next, "#3");
Assert.AreEqual (a, d.Next, "#4");
Assert.AreEqual (d, a.Previous, "#5");
Assert.AreEqual (a, b.Previous, "#6");
Assert.AreEqual (b, c.Previous, "#7");
Assert.AreEqual (c, d.Previous, "#8");
Assert.AreEqual (40, a.Item, "#9");
Assert.AreEqual (30, b.Item, "#10");
Assert.AreEqual (10, c.Item, "#11");
Assert.AreEqual (20, d.Item, "#12");
}