Version: 5.6
public static void IsTrue (bool condition);
public static void IsTrue (bool condition, string message);

説明

true となる条件のアサート

public class AssertionExampleClass : MonoBehaviour
{
    void Update()
    {
        //Make sure the Game Object is always in active state
        Assert.IsFalse(gameObject.activeSelf);
    }
}