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<?php/*
 * This file is part of the Comparator package.
 *
 * (c) Sebastian Bergmann <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
 namespace SebastianBergmann\Comparator;
 
 use SebastianBergmann\Exporter\Exporter;
 
 /**
 * Abstract base class for comparators which compare values for equality.
 */
 abstract class Comparator
 {
 /**
 * @var Factory
 */
 protected $factory;
 
 /**
 * @var Exporter
 */
 protected $exporter;
 
 public function __construct()
 {
 $this->exporter = new Exporter;
 }
 
 /**
 * @param Factory $factory
 */
 public function setFactory(Factory $factory)
 {
 $this->factory = $factory;
 }
 
 /**
 * Returns whether the comparator can compare two values.
 *
 * @param  mixed $expected The first value to compare
 * @param  mixed $actual   The second value to compare
 * @return bool
 */
 abstract public function accepts($expected, $actual);
 
 /**
 * Asserts that two values are equal.
 *
 * @param mixed $expected     First value to compare
 * @param mixed $actual       Second value to compare
 * @param float $delta        Allowed numerical distance between two values to consider them equal
 * @param bool  $canonicalize Arrays are sorted before comparison when set to true
 * @param bool  $ignoreCase   Case is ignored when set to true
 *
 * @throws ComparisonFailure
 */
 abstract public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false);
 }
 
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