public void WeakTableNoValue()
{
var table = new WeakTable <BaseObject, string>();
var obj1 = new BaseObject();
Assert.IsFalse(table.HasValue(obj1));
Assert.IsNull(table.GetValue(obj1));
Assert.IsFalse(table.TryGetValue(obj1, out _));
}
public void WeakTableKeyIsNull()
{
var table = new WeakTable <BaseObject, string>();
Assert.IsFalse(table.HasValue(null));
Assert.IsNull(table.GetValue(null));
Assert.IsFalse(table.TryGetValue(null, out _));
table.SetValue(null, "obj0");
string s;
Assert.IsTrue(table.TryGetValue(null, out s));
Assert.AreEqual("obj0", s);
}
public void WeakTableStorage()
{
var table = new WeakTable <BaseObject, string>();
var obj1 = new BaseObject();
table.SetValue(obj1, "obj1");
Assert.IsTrue(table.HasValue(obj1));
Assert.AreEqual("obj1", table.GetValue(obj1));
string s;
Assert.IsTrue(table.TryGetValue(obj1, out s));
Assert.AreEqual("obj1", s);
}
public void WeakTableForget()
{
var table = new WeakTable <BaseObject, string>();
WeakReference weakref;
void _WorkWithObj1()
{
var obj1 = new BaseObject();
table[obj1] = "obj1";
Assert.IsTrue(table.HasValue(obj1));
Assert.AreEqual("obj1", table[obj1]);
weakref = new WeakReference(obj1);
obj1 = null;
}
_WorkWithObj1();
GC.Collect();
Assert.IsFalse(table.HasValue(weakref.Target as BaseObject));
Assert.IsNull(table.GetValue(weakref.Target as BaseObject));
}