public void ChangeType_NullType_Throws()
{
int invokeCounter = 0;
EventHandler d = (object o, EventArgs args) => { ++invokeCounter; };
DelegateConvert.ChangeType(d, (Type)null);
}
public void ChangeType_IncompatibleType_Throws()
{
int invokeCounter = 0;
EventHandler <AssemblyLoadEventArgs> d = (object o, AssemblyLoadEventArgs args) => { ++invokeCounter; };
EventHandler <ResolveEventArgs> dt = DelegateConvert.ChangeType <EventHandler <ResolveEventArgs> >(d);
}
public void ChangeType_SameType_ReturnsOriginalInstance()
{
int invokeCounter = 0;
EventHandler <EventArgs> d = (object o, EventArgs args) => { ++invokeCounter; };
EventHandler <EventArgs> dt = DelegateConvert.ChangeType <EventHandler <EventArgs> >(d);
Assert.IsNotNull(dt);
Assert.AreSame(d, dt);
}
public void ChangeType_DerivedArgs_IsCallable()
{
int invokeCounter = 0;
EventHandler <EventArgs> d = (object o, EventArgs args) => { ++invokeCounter; };
EventHandler <AssemblyLoadEventArgs> dt = DelegateConvert.ChangeType <EventHandler <AssemblyLoadEventArgs> >(d);
Assert.IsNotNull(dt);
Assert.AreNotSame(d, dt);
d(this, new EventArgs());
Assert.AreEqual(1, invokeCounter);
dt(this, new AssemblyLoadEventArgs(null));
Assert.AreEqual(2, invokeCounter);
}
public void ChangeType_SingleCast_SingleCast()
{
int invokeCounter = 0;
EventHandler d = (object o, EventArgs args) => { ++invokeCounter; };
EventHandler <EventArgs> dt = DelegateConvert.ChangeType <EventHandler <EventArgs> >(d);
Assert.IsNotNull(dt);
Assert.AreNotSame(d, dt);
d(this, new EventArgs());
Assert.AreEqual(1, invokeCounter);
dt(this, new EventArgs());
Assert.AreEqual(2, invokeCounter);
}
private void WillBeWeak1_Weak_Unsubscribe(EventHandler <EventArgs> weh)
{
var realHandler = (EventHandler)DelegateConvert.ChangeType(weh, typeof(EventHandler));
_WillBeWeak1 = (EventHandler)Delegate.Remove(_WillBeWeak1, realHandler);
}
public void ChangeType_Null_Null()
{
Assert.IsNull(DelegateConvert.ChangeType <object>(null));
}
