public async void Polymorphism_For_Override_Method()
{
Duck duck = new ExecitedDuck();
IDuck target = duck.As <IDuck>();
Assert.Equal(await duck.WalkAsync(), await target.WalkAsync());
Assert.Same(duck, target.GetSource <Duck>());
Assert.Same(duck, target.GetSource <ExecitedDuck>());
}
public void Should_Use_Original_Object()
{
Duck source = new Duck();
IDuck target = source.As <IDuck>();
Assert.Same(source, target);
Assert.Same(source, target.GetSource <Duck>());
Assert.Throws <ArgumentException>(() => target.GetSource <ExecitedDuck>());
}
public void Hide_Base_Using_New()
{
ExecitedDuck source = new ExecitedDuck();
IDuck target = source.As <IDuck>();
Assert.Equal(source.Quack(), target.Quack());
Assert.Same(source, target.GetSource <Duck>());
Assert.Same(source, target.GetSource <ExecitedDuck>());
}
public void Primitive_Type_As_Unrelated_Interface()
{
int source = 1;
IDuck target = source.As <IDuck>();
Assert.NotNull(target);
Assert.Equal(source, target.GetSource <int>());
Assert.Throws <InvalidCastException>(() => target.GetSource <long>());
}
public async Task Override_Virtual_Method()
{
ExecitedDuck source = new ExecitedDuck();
IDuck target = source.As <IDuck>();
Assert.Equal(await source.WalkAsync(), await target.WalkAsync());
Assert.Same(source, target.GetSource <ExecitedDuck>());
}
public void Null_Can_Be_Goosed()
{
Duck source = null;
IDuck target = source.As <IDuck>();
Assert.NotNull(target);
Assert.Null(target.GetSource <Duck>());
}
public void Get_Source_Reference_Check()
{
Assert.Same(_source, _target.GetSource <Duck>());
}
