php-ml/tests/Phpml/NeuralNetwork/ActivationFunction/HyperboliTangentTest.php

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<?php
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declare(strict_types=1);
namespace tests\Phpml\NeuralNetwork\ActivationFunction;
use Phpml\NeuralNetwork\ActivationFunction\HyperbolicTangent;
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use PHPUnit\Framework\TestCase;
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class HyperboliTangentTest extends TestCase
{
/**
* @dataProvider tanhProvider
*/
public function testHyperbolicTangentActivationFunction($beta, $expected, $value): void
{
$tanh = new HyperbolicTangent($beta);
$this->assertEquals($expected, $tanh->compute($value), '', 0.001);
}
/**
* @return array
*/
public function tanhProvider()
{
return [
[1.0, 0.761, 1],
[1.0, 0, 0],
[1.0, 1, 4],
[1.0, -1, -4],
[0.5, 0.462, 1],
[0.3, 0, 0],
];
}
}