Version: 2017.1
public static void AreEqual (T expected, T actual);
public static void AreEqual (T expected, T actual, string message);
public static void AreEqual (T expected, T actual, string message, IEqualityComparer<T> comparer);

Description

Asserts that the values are equal. If no comparer is specified, EqualityComparer<T>.Default is used.

using UnityEngine;
using UnityEngine.Assertions;

public class AssertionExampleClass : MonoBehaviour { void Update() { //Make sure the Game Object is always tagged as "Player" Assert.AreEqual("Player", gameObject.tag); } }