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# Vector2EqualityComparer
Use this class to compare two [Vector2](https://docs.unity3d.com/ScriptReference/Vector2.html) objects for equality with [NUnit](http://www.nunit.org/) constraints. Use the static `Vector2EqualityComparer.Instance` to have the calculation error value set to default 0.0001f. For any other error value, instantiate a new comparer object with the [one argument constructor](#constructors).
## Static properties
| Syntax | Description |
| ---------- | ------------------------------------------------------------ |
| `Instance` | A comparer instance with the default error value set to 0.0001f. |
## Constructors
| Syntax | Description |
| -------------------------------------- | ---------------------------------------------- |
| `Vector2EqualityComparer(float error)` | Creates an instance with a custom error value. |
## Public methods
| Syntax | Description |
| ------------------------------------------ | ------------------------------------------------------------ |
| `Equals(Vector2 expected, Vector2 actual)` | Compares the `actual` and `expected` `Vector2` objects for equality using the [Utils.AreFloatsEqual](./reference-test-utils.md) method. |
## Example
```c#
[TestFixture]
public class Vector2Test
{
[Test]
public void VerifyThat_TwoVector2ObjectsAreEqual()
{
// Custom calculation error
var actual = new Vector2(10e-7f, 10e-7f);
var expected = new Vector2(0f, 0f);
var comparer = new Vector2EqualityComparer(10e-6f);
Assert.That(actual, Is.EqualTo(expected).Using(comparer));
//Default error 0.0001f
actual = new Vector2(0.01f, 0.01f);
expected = new Vector2(0.01f, 0.01f);
Assert.That(actual, Is.EqualTo(expected).Using(Vector2EqualityComparer.Instance));
}
}
```
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