48 lines
2.1 KiB
Markdown
48 lines
2.1 KiB
Markdown
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# Vector3EqualityComparer
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Use this class to compare two [Vector3](https://docs.unity3d.com/ScriptReference/Vector3.html) objects for equality with `NUnit` constraints. Call `Vector3EqualityComparer.Instance` comparer to perform a comparison with the default calculation error value 0.0001f. To specify a different error value, use the [one argument constructor](#constructors) to instantiate a new comparer.
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## Static properties
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| Syntax | Description |
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| ---------- | ------------------------------------------------------------ |
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| `Instance` | A comparer instance with the default calculation error value equal to 0.0001f. |
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## Constructors
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| Syntax | Description |
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| --------------------------------------------- | ---------------------------------------------- |
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| `Vector3EqualityComparer(float allowedError)` | Creates an instance with a custom error value. |
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## Public methods
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| Syntax | Description |
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| ----------------------------------------------- | ------------------------------------------------------------ |
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| `bool Equals(Vector3 expected, Vector3 actual)` | Compares the `actual` and `expected` `Vector3` objects for equality using [Utils.AreFloatsEqual](http://todo) to compare the `x`, `y`, and `z` attributes of `Vector3`. |
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## Example
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```c#
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[TestFixture]
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public class Vector3Test
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{
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[Test]
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public void VerifyThat_TwoVector3ObjectsAreEqual()
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{
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// Custom error 10e-6f
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var actual = new Vector3(10e-8f, 10e-8f, 10e-8f);
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var expected = new Vector3(0f, 0f, 0f);
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var comparer = new Vector3EqualityComparer(10e-6f);
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Assert.That(actual, Is.EqualTo(expected).Using(comparer));
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//Default error 0.0001f
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actual = new Vector3(0.01f, 0.01f, 0f);
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expected = new Vector3(0.01f, 0.01f, 0f);
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Assert.That(actual, Is.EqualTo(expected).Using(Vector3EqualityComparer.Instance));
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}
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}
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```
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