public void CopyToWorks()
{
var arr = new[] { "a", "b", "c", "d" };
var wc = new WeakCollection <string>(arr);
var target = new string[5];
wc.CopyTo(target, 0);
Assert.True(arr.SequenceEqual(target.Take(4)));
Assert.Null(target[4]);
target[0] = null;
wc.CopyTo(target, 1);
Assert.True(arr.SequenceEqual(target.Skip(1)));
}
public void CopyToWorksAfterCollect()
{
var arr = new[] { "a", "b" };
var wc = new WeakCollection <string>(arr);
{
wc.Add(new string('c', 1));
wc.Add(new string('d', 1));
}
GCEx.CollectAndWait();
var target = new string[5];
wc.CopyTo(target, 1);
Assert.True(arr.SequenceEqual(target.Skip(1).Take(2)));
Assert.Null(target[0]);
Assert.Null(target[3]);
Assert.Null(target[4]);
}
public void TestBasics()
{
WeakCollection<object> c = new WeakCollection<object>();
c.Add(new object());
c.Add(new object());
c.Add(new object());
c.Add(new object());
c.Add(this);
Assert.AreEqual(5, c.Count);
Assert.IsTrue(c.Contains(this));
int n = 0;
foreach (object o in c)
{
Assert.IsTrue(o.GetType() == typeof(object) || o.GetType() == this.GetType());
n++;
}
Assert.AreEqual(5, n);
GC.Collect();
GC.WaitForPendingFinalizers();
Assert.AreEqual(1, c.Count);
Assert.IsTrue(c.Contains(this));
n = 0;
foreach (object o in c)
{
Assert.IsTrue(o.GetType() == this.GetType());
Assert.IsTrue(o == this);
n++;
}
Assert.AreEqual(1, n);
c.CopyTo(new object[1], 0);
}
