using System;

using AssertLibrary;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World, Let's start testing!");

        int number = 300000000;

        try

        {

            short s = (short)number;

            Assert.IsFalse(true);

        }

        catch

        {

            Assert.IsTrue(true);

        }

        decimal d = (decimal)number;

        IDisposable myObj = new MyDisposable();

        AssertNotNull(myObj);

        AssertNull(myObj as NotMyDisposable);

        AssertThrows(() => { var dis = (NotMyDisposable)myObj; });

        Console.WriteLine("End");

    }

    private static void AssertNull(object o)

    {

        if(o == null) return;

        Console.WriteLine("FAIL: Not Null: " + o.GetType());

    }

    private static void AssertNotNull(object o)

    {

        if(o != null) return;

        Console.WriteLine("FAIL: Null");

    }

    private static void AssertThrows(Action action)

    {

        try

        {

            action();

            Console.WriteLine("FAIL: DID NOT THROW!");

        }

        catch

        {

        }

    }

}

public class MyDisposable : IDisposable

{

    public void Dispose()

    {}

}

​

public class NotMyDisposable : IDisposable

{

    public void Dispose()

    {}

}