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<?php |
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/** |
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* This file is part of phpab/phpab. (https://github.com/phpab/phpab) |
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* |
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* @link https://github.com/phpab/phpab for the canonical source repository |
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* @copyright Copyright (c) 2015-2016 phpab. (https://github.com/phpab/) |
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* @license https://raw.githubusercontent.com/phpab/phpab/master/LICENSE.md MIT |
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*/ |
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namespace PhpAb\Analytics\DataCollector; |
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use PhpAb\Event\SubscriberInterface; |
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use PhpAb\Test\TestInterface; |
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use PhpAb\Variant\VariantInterface; |
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use Webmozart\Assert\Assert; |
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/** |
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* A data collector that holds information about which tests have been executed in a format for Google. |
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* |
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* @package PhpAb |
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*/ |
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class Google implements SubscriberInterface |
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{ |
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/** |
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* @var array Test identifiers and variation indexes |
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*/ |
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private $participations = []; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getSubscribedEvents() |
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{ |
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return [ |
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'phpab.participation.variant_run' => function ($options) { |
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Assert::notEmpty($options, 'Array passed to closure cannot be empty.'); |
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Assert::keyExists($options, 1, 'Second parameter passed to closure must be instance of Bag.'); |
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Assert::isInstanceOf( |
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$options[1], |
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'PhpAb\Test\Bag', |
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'Second parameter passed to closure must be instance of Bag.' |
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); |
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Assert::keyExists( |
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$options, |
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2, |
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'Third parameter passed to closure must be instance of VariantInterface.' |
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); |
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Assert::isInstanceOf( |
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$options[2], |
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'PhpAb\Variant\VariantInterface', |
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'Third parameter passed to closure must be instance of VariantInterface.' |
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); |
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/** @var TestInterface $test */ |
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$test = $options[1]->getTest(); |
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/** @var VariantInterface $chosenVariant */ |
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$chosenVariant = $options[2]; |
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$variants = $test->getVariants(); |
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// Get the index number of the element |
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$chosenIndex = array_search($chosenVariant->getIdentifier(), array_keys($variants)); |
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// Call the add method |
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$this->addParticipation($test->getIdentifier(), $chosenIndex); |
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} |
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]; |
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} |
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/** |
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* Adds a participation to the data collector. |
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* |
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* @param string $testIdentifier It will look like "Qp0gahJ3RAO3DJ18b0XoUQ" |
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* @param int $variationIndex |
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* @throws InvalidArgumentException |
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*/ |
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public function addParticipation($testIdentifier, $variationIndex) |
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{ |
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Assert::string($testIdentifier, 'Test identifier must be a string'); |
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Assert::integer($variationIndex, 'Variation index must be integer'); |
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Assert::greaterThan($variationIndex, -1, 'Variation index must be integer >= 0'); |
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$this->participations[$testIdentifier] = $variationIndex; |
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} |
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/** |
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* Gets the test data that has been collected. |
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* |
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* @return array |
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*/ |
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public function getTestsData() |
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{ |
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return $this->participations; |
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} |
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} |
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phpab /
phpab
