public void UnitRb_CtorSubclass()
{
var sub = new DerivedB();
bool isRO = ((System.Collections.Generic.ICollection <int>)sub).IsReadOnly;
Assert.IsFalse(isRO);
}
public void test_collectionExtensions_listToString_source()
{
string output = string.Empty;
List <Base> list = null;
output = list.listToString();
Assert.AreEqual(output, "null");
list = new List <Base>();
output = list.listToString();
Assert.AreEqual(output, "[]");
DerivedA obj_a = new DerivedA();
list.Add(obj_a);
output = list.listToString();
Assert.AreEqual(output, "[" + obj_a + "]");
DerivedB obj_b = new DerivedB();
list.Add(obj_b);
output = list.listToString();
Assert.AreEqual(output, "[" + obj_a + ", " + obj_b + "]");
}
// Ex 2: Explicit conversion
public void Ex2_Explicit()
{
double d = 10.5;
int i = (int)d; // cast required (truncation)
BaseA ba = new DerivedB();
DerivedB db = (DerivedB)ba;
}
public static MyBase CreateDerivedB()
{
string specialPropertyOfB = // ...
MyBase instance = new DerivedB(specialPropertyOfA);
Recorder.Process(instance);
return(instance);
}
public void Ex1_Implicit()
{
int i = 7;
double d = i; // allowed
DerivedB db = new DerivedB();
BaseA ba = db; // allowed (polymorphism)
BaseA ba2 = new BaseA();
IBase0 ib0 = ba2; // allowed (interface polymorphism)
}
public void TestMethod1()
{
IList <DerivedA> lista = new List <DerivedA> {
new DerivedA()
};
var casted = lista.Cast <DerivedB>();
try {
DerivedB b = casted.First();
Assert.Fail();
} catch (InvalidCastException) {
// exception will be thrown
}
}
private static void Main(string[] args)
{
Base baseObj = new Base();
Base ba = new DerivedA();
Base bb = new DerivedB();
DerivedB b = new DerivedB();
baseObj.SomeMethod();
ba.SomeMethod();
bb.SomeMethod();
b.SomeMethod();
Console.ReadKey();
}
public int doAnything(int x)
{
DerivedA a = this as DerivedA;
if (a != null)
{
return(a.doSomething(x));
}
DerivedB b = this as DerivedB;
if (b != null)
{
return(b.doSomethingElse(x));
}
return(0);
}
protected internal virtual string Generate(DerivedB b)
{
return(" B ");
}