Assert.IsFalse

Description

Asserts that the condition is false.

#pragma strict
public class AssertionExampleClass extends MonoBehaviour {
	var go: GameObject;
	function Update() {
		//Make sure the Game Object is never in active state
		Assert.IsFalse(go.activeSelf);
	}
}

using UnityEngine;
using UnityEngine.Assertions;

public class AssertionExampleClass : MonoBehaviour
{
    GameObject go;
    void Update()
    {
        //Make sure the Game Object is never in active state
        Assert.IsFalse(go.activeSelf);
    }
}