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726cf4cddf
* travis: move coveralls here, decouple from package * composer: use PSR4 * phpunit: simpler config * travis: add ecs run * composer: add ecs dev * use standard vendor/bin directory for dependency bins, confuses with local bins and require gitignore handling * ecs: add PSR2 * [cs] PSR2 spacing fixes * [cs] PSR2 class name fix * [cs] PHP7 fixes - return semicolon spaces, old rand functions, typehints * [cs] fix less strict typehints * fix typehints to make tests pass * ecs: ignore typehint-less elements * [cs] standardize arrays * [cs] standardize docblock, remove unused comments * [cs] use self where possible * [cs] sort class elements, from public to private * [cs] do not use yoda (found less yoda-cases, than non-yoda) * space * [cs] do not assign in condition * [cs] use namespace imports if possible * [cs] use ::class over strings * [cs] fix defaults for arrays properties, properties and constants single spacing * cleanup ecs comments * [cs] use item per line in multi-items array * missing line * misc * rebase
53 lines
1.4 KiB
PHP
53 lines
1.4 KiB
PHP
<?php
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declare(strict_types=1);
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namespace tests\Phpml\NeuralNetwork\Node\Neuron;
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use Phpml\NeuralNetwork\Node\Neuron;
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use Phpml\NeuralNetwork\Node\Neuron\Synapse;
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use PHPUnit\Framework\TestCase;
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use PHPUnit_Framework_MockObject_MockObject;
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class SynapseTest extends TestCase
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{
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public function testSynapseInitialization(): void
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{
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$node = $this->getNodeMock($nodeOutput = 0.5);
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$synapse = new Synapse($node, $weight = 0.75);
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$this->assertEquals($node, $synapse->getNode());
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$this->assertEquals($weight, $synapse->getWeight());
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$this->assertEquals($weight * $nodeOutput, $synapse->getOutput());
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$synapse = new Synapse($node);
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$this->assertInternalType('float', $synapse->getWeight());
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}
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public function testSynapseWeightChange(): void
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{
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$node = $this->getNodeMock();
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$synapse = new Synapse($node, $weight = 0.75);
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$synapse->changeWeight(1.0);
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$this->assertEquals(1.75, $synapse->getWeight());
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$synapse->changeWeight(-2.0);
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$this->assertEquals(-0.25, $synapse->getWeight());
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}
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/**
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* @param int|float $output
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*/
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private function getNodeMock($output = 1): PHPUnit_Framework_MockObject_MockObject
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{
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$node = $this->getMockBuilder(Neuron::class)->getMock();
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$node->method('getOutput')->willReturn($output);
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return $node;
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}
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}
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