NumericComparator.php in Zircon Profile 8

Namespace

SebastianBergmann\Comparator

File

vendor/sebastian/comparator/src/NumericComparator.php

<?php

/*
 * This file is part of the Comparator package.
 *
 * (c) Sebastian Bergmann <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Comparator;


/**
 * Compares numerical values for equality.
 */
class NumericComparator extends ScalarComparator {

  /**
   * Returns whether the comparator can compare two values.
   *
   * @param  mixed $expected The first value to compare
   * @param  mixed $actual   The second value to compare
   * @return bool
   */
  public function accepts($expected, $actual) {

    // all numerical values, but not if one of them is a double
    // or both of them are strings
    return is_numeric($expected) && is_numeric($actual) && !(is_double($expected) || is_double($actual)) && !(is_string($expected) && is_string($actual));
  }

  /**
   * Asserts that two values are equal.
   *
   * @param  mixed             $expected     The first value to compare
   * @param  mixed             $actual       The second value to compare
   * @param  float             $delta        The allowed numerical distance between two values to
   *                                         consider them equal
   * @param  bool              $canonicalize If set to TRUE, arrays are sorted before
   *                                         comparison
   * @param  bool              $ignoreCase   If set to TRUE, upper- and lowercasing is
   *                                         ignored when comparing string values
   * @throws ComparisonFailure Thrown when the comparison
   *                                        fails. Contains information about the
   *                                        specific errors that lead to the failure.
   */
  public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false) {
    if (is_infinite($actual) && is_infinite($expected)) {
      return;
    }
    if ((is_infinite($actual) xor is_infinite($expected)) || (is_nan($actual) or is_nan($expected)) || abs($actual - $expected) > $delta) {
      throw new ComparisonFailure($expected, $actual, '', '', false, sprintf('Failed asserting that %s matches expected %s.', $this->exporter
        ->export($actual), $this->exporter
        ->export($expected)));
    }
  }

}

Classes

Name	Description
NumericComparator	Compares numerical values for equality.