script to test error types

using UnityEngine;
using System.Collections;

public class Test : MonoBehaviour {

    Object nullObject;
    bool secondError = false;

    // Use this for initialization
    void Start () {

        Debug.Log("Regular Log Line");
        Debug.LogWarning("This is a log warning");
        Debug.LogError("This is a log error");
        FunctionA ();


        nullObject.name = "this will fail!";

    }

    void FunctionA() {

        FunctionB(1);

    }

    void FunctionB(int n) {

        FunctionC();

    }

    void FunctionC() {

        Debug.Log ("This line is a few functions deep");

    }

    // Update is called once per frame
    void Update () {
        if (!secondError)
        {
            secondError = true;
            FunctionD ();
        }
    }

    void FunctionD() {
        FunctionE();
    }

    void FunctionE() {
        nullObject.name = "this will fail too!";
    }

}