php-ml/tests/NeuralNetwork/Network/LayeredNetworkTest.php

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<?php
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declare(strict_types=1);
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namespace Phpml\Tests\NeuralNetwork\Network;
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use Phpml\NeuralNetwork\ActivationFunction;
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use Phpml\NeuralNetwork\Layer;
use Phpml\NeuralNetwork\Network\LayeredNetwork;
use Phpml\NeuralNetwork\Node\Input;
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use PHPUnit\Framework\TestCase;
use PHPUnit_Framework_MockObject_MockObject;
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class LayeredNetworkTest extends TestCase
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{
public function testLayersSettersAndGetters(): void
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{
$network = $this->getLayeredNetworkMock();
$network->addLayer($layer1 = new Layer());
$network->addLayer($layer2 = new Layer());
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self::assertEquals([$layer1, $layer2], $network->getLayers());
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}
public function testGetLastLayerAsOutputLayer(): void
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{
$network = $this->getLayeredNetworkMock();
$network->addLayer($layer1 = new Layer());
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self::assertEquals($layer1, $network->getOutputLayer());
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$network->addLayer($layer2 = new Layer());
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self::assertEquals($layer2, $network->getOutputLayer());
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}
public function testSetInputAndGetOutput(): void
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{
$network = $this->getLayeredNetworkMock();
$network->addLayer(new Layer(2, Input::class));
$network->setInput($input = [34, 43]);
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self::assertEquals($input, $network->getOutput());
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$network->addLayer(new Layer(1));
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self::assertEquals([0.5], $network->getOutput());
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}
public function testSetInputAndGetOutputWithCustomActivationFunctions(): void
{
$network = $this->getLayeredNetworkMock();
$network->addLayer(new Layer(2, Input::class, $this->getActivationFunctionMock()));
$network->setInput($input = [34, 43]);
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self::assertEquals($input, $network->getOutput());
}
/**
* @return LayeredNetwork|PHPUnit_Framework_MockObject_MockObject
*/
private function getLayeredNetworkMock()
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{
return $this->getMockForAbstractClass(LayeredNetwork::class);
}
/**
* @return ActivationFunction|PHPUnit_Framework_MockObject_MockObject
*/
private function getActivationFunctionMock()
{
return $this->getMockForAbstractClass(ActivationFunction::class);
}
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}