63 lines
1.2 KiB
PHP
63 lines
1.2 KiB
PHP
<?php
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/**
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* A binary safe string comparison.
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*
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* @author Chris Corbyn
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*/
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class IdenticalBinaryConstraint extends \PHPUnit\Framework\Constraint\Constraint
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{
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protected $value;
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public function __construct($value)
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{
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$this->value = $value;
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}
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/**
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* Evaluates the constraint for parameter $other. Returns TRUE if the
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* constraint is met, FALSE otherwise.
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*
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* @param mixed $other Value or object to evaluate.
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*
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* @return bool
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*/
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public function matches($other)
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{
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$aHex = $this->asHexString($this->value);
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$bHex = $this->asHexString($other);
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return $aHex === $bHex;
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}
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/**
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* Returns a string representation of the constraint.
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*
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* @return string
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*/
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public function toString()
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{
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return 'identical binary';
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}
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/**
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* Get the given string of bytes as a stirng of Hexadecimal sequences.
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*
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* @param string $binary
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*
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* @return string
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*/
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private function asHexString($binary)
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{
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$hex = '';
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$bytes = unpack('H*', $binary);
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foreach ($bytes as &$byte) {
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$byte = strtoupper($byte);
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}
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return implode('', $bytes);
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}
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}
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