# MustNotBeEqual

> An extension method for Assert.AreNotEqual.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.Assertions.Must](/engine/6000.6/script-reference/unityengine/assertions/must.md)
* **Assembly:** UnityEngine.CoreModule

## MustNotBeEqual\<T>(T, T)

An extension method for [Assert.AreNotEqual](/engine/6000.6/script-reference/unityengine/assertions/assert/arenotequal.md).

> **Warning:**
>
> **Deprecated.** Must extensions are deprecated. Use UnityEngine.Assertions.Assert instead

```csharp
[Conditional("UNITY_ASSERTIONS")]
public static void MustNotBeEqual<T>(this T actual, T expected)
```

### Parameters

**** (T): **** (T):&#x20;

### Examples

```csharp
using UnityEngine;
using UnityEngine.Assertions;
using UnityEngine.Assertions.Must;

public class AssertionExampleClass : MonoBehaviour
{
    void Update()
    {
        //Make sure the Game Object's layer is never set to 0
        gameObject.layer.MustNotBeEqual(0);
    }
}
```

## MustNotBeEqual\<T>(T, T, string)

An extension method for [Assert.AreNotEqual](/engine/6000.6/script-reference/unityengine/assertions/assert/arenotequal.md).

> **Warning:**
>
> **Deprecated.** Must extensions are deprecated. Use UnityEngine.Assertions.Assert instead

```csharp
[Conditional("UNITY_ASSERTIONS")]
public static void MustNotBeEqual<T>(this T actual, T expected, string message)
```

### Parameters

**** (T): **** (T): **** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)):&#x20;

### Examples

```csharp
using UnityEngine;
using UnityEngine.Assertions;
using UnityEngine.Assertions.Must;

public class AssertionExampleClass : MonoBehaviour
{
    void Update()
    {
        //Make sure the Game Object's layer is never set to 0
        gameObject.layer.MustNotBeEqual(0);
    }
}
```