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<?php |
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namespace Peridot\Leo\Matcher; |
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use Peridot\Leo\Matcher\Template\ArrayTemplate; |
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use Peridot\Leo\Matcher\Template\TemplateInterface; |
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/** |
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* KeysMatcher determines if the actual array or object has the expected keys. If the Assertion has |
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* a 'contain' flag set, it will check if the expected keys are included in the object or array. |
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* |
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* @package Peridot\Leo\Matcher |
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*/ |
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class KeysMatcher extends AbstractMatcher |
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{ |
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/** |
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* The verb used in the template. Uses "have" if the 'contain' flag is not used, otherwise |
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* "contain" is used. |
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* |
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* @var string |
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*/ |
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protected $verb = 'have'; |
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/** |
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* {@inheritdoc} |
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* |
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* @return TemplateInterface |
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*/ |
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public function getDefaultTemplate() |
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{ |
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$subject = 'key'; |
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if (count($this->expected) > 1) { |
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$subject = 'keys'; |
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} |
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$template = new ArrayTemplate([ |
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'default' => "Expected {{actual}} to {$this->verb} $subject {{keys}}", |
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'negated' => "Expected {{actual}} to not {$this->verb} $subject {{keys}}", |
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]); |
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return $template->setTemplateVars(['keys' => $this->getKeyString()]); |
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} |
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/** |
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* Assert that the actual value is an array or object with the expected keys. |
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* |
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* @param $actual |
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* @return mixed |
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*/ |
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protected function doMatch($actual) |
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{ |
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$actual = $this->getArrayValue($actual); |
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if ($this->assertion->flag('contain')) { |
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$this->verb = 'contain'; |
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return $this->matchInclusion($actual); |
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} |
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$keys = array_keys($actual); |
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return $keys == $this->expected; |
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} |
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/** |
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* Normalize the actual value into an array, whether it is an object |
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* or an array. |
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* |
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* @param object|array $actual |
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*/ |
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protected function getArrayValue($actual) |
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{ |
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if (is_object($actual)) { |
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return get_object_vars($actual); |
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} |
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if (is_array($actual)) { |
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return $actual; |
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} |
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throw new \InvalidArgumentException('KeysMatcher expects object or array'); |
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} |
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/** |
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* Returns a formatted string of expected keys. |
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* |
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* @return string keys |
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*/ |
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protected function getKeyString() |
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{ |
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$expected = $this->expected; |
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$keys = ''; |
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$tail = array_pop($expected); |
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if (!empty($expected)) { |
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$keys = implode('","', $expected) . '", and "'; |
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} |
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$keys .= $tail; |
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return $keys; |
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} |
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/** |
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* Used when the 'contain' flag exists on the Assertion. Checks |
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* if the expected keys are included in the object or array. |
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* |
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* @param array $actual |
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* @return true |
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*/ |
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protected function matchInclusion($actual) |
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{ |
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foreach ($this->expected as $key) { |
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if (!array_key_exists($key, $actual)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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} |
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peridot-php /
leo
