private static void testCore(UnhandledExceptionEventHandler dele, int expectedTestCounter)
{
var w = WeakDelegate.Create(dele);
var otc = testConter;
w(testSender, testArgs);
Assert.AreEqual(expectedTestCounter, testConter - otc);
}
public void EmptyWorks()
{
var wd1 = WeakDelegate <Func <string> > .Create();
Assert.Null(wd1.Invoker());
var wd2 = WeakDelegate <Action <string> > .Create();
wd2.Invoker("test");
var wd3 = WeakDelegate <Action <string, int> > .Create();
wd3.Invoker("test", 1);
}
public void DelegateIsWeak()
{
var wd1 = WeakDelegate <Func <int> > .Create();
{
var t = new SomeClass(5);
wd1.Add(t.GetValue);
Assert.Equal(5, wd1.Invoker());
}
GCEx.CollectAndWait();
Assert.Equal(0, wd1.Invoker());
}
public void InvokerWorksForFunc1()
{
Func <int, int> sq = x => x * x;
Func <int, int> cube = x => x * x * x;
var wd1 = WeakDelegate <Func <int, int> > .Create();
wd1.Add(sq);
Assert.Equal(4, wd1.Invoker(2));
wd1.Add(cube);
Assert.Equal(8, wd1.Invoker(2));
wd1.Remove(cube);
Assert.Equal(4, wd1.Invoker(2));
wd1.Remove(sq);
Assert.Equal(0, wd1.Invoker(2));
}
public void InvokerWorksForAction2()
{
var i = 0;
// ReSharper disable once AccessToModifiedClosure
Action <int, int> add = (x, y) => i += x + y;
var wd1 = WeakDelegate <Action <int, int> > .Create();
wd1.Add(add);
wd1.Invoker(1, 2);
Assert.Equal(3, i);
wd1.Add(add);
i = 0;
wd1.Invoker(1, 2);
Assert.Equal(6, i);
}
public void InvokerWorksForAction1()
{
var i = 0;
// ReSharper disable once AccessToModifiedClosure
Action <int> add = x => i += x;
var wd1 = WeakDelegate <Action <int> > .Create();
wd1.Add(add);
wd1.Invoker(2);
Assert.Equal(2, i);
wd1.Add(add);
i = 0;
wd1.Invoker(1);
Assert.Equal(2, i);
}
public void DelegateThrowsForStupidTypes()
{
Assert.Throws <TypeInitializationException>(() => WeakDelegate <string> .Create());
}