106 lines
3.5 KiB
PHP
106 lines
3.5 KiB
PHP
<?php
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/*
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* This file is part of the Comparator package.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Comparator;
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/**
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* Compares objects for equality.
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*/
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class ObjectComparator extends ArrayComparator
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{
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/**
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* Returns whether the comparator can compare two values.
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*
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* @param mixed $expected The first value to compare
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* @param mixed $actual The second value to compare
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* @return bool
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*/
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public function accepts($expected, $actual)
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{
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return is_object($expected) && is_object($actual);
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}
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/**
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* Asserts that two values are equal.
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*
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* @param mixed $expected First value to compare
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* @param mixed $actual Second value to compare
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* @param float $delta Allowed numerical distance between two values to consider them equal
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* @param bool $canonicalize Arrays are sorted before comparison when set to true
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* @param bool $ignoreCase Case is ignored when set to true
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* @param array $processed List of already processed elements (used to prevent infinite recursion)
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*
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* @throws ComparisonFailure
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*/
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public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false, array &$processed = array())
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{
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if (get_class($actual) !== get_class($expected)) {
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throw new ComparisonFailure(
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$expected,
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$actual,
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$this->exporter->export($expected),
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$this->exporter->export($actual),
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false,
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sprintf(
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'%s is not instance of expected class "%s".',
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$this->exporter->export($actual),
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get_class($expected)
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)
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);
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}
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// don't compare twice to allow for cyclic dependencies
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if (in_array(array($actual, $expected), $processed, true) ||
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in_array(array($expected, $actual), $processed, true)) {
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return;
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}
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$processed[] = array($actual, $expected);
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// don't compare objects if they are identical
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// this helps to avoid the error "maximum function nesting level reached"
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// CAUTION: this conditional clause is not tested
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if ($actual !== $expected) {
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try {
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parent::assertEquals(
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$this->toArray($expected),
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$this->toArray($actual),
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$delta,
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$canonicalize,
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$ignoreCase,
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$processed
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);
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} catch (ComparisonFailure $e) {
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throw new ComparisonFailure(
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$expected,
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$actual,
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// replace "Array" with "MyClass object"
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substr_replace($e->getExpectedAsString(), get_class($expected) . ' Object', 0, 5),
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substr_replace($e->getActualAsString(), get_class($actual) . ' Object', 0, 5),
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false,
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'Failed asserting that two objects are equal.'
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);
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}
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}
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}
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/**
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* Converts an object to an array containing all of its private, protected
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* and public properties.
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*
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* @param object $object
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* @return array
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*/
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protected function toArray($object)
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{
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return $this->exporter->toArray($object);
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}
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}
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