Callback.php in Zircon Profile 8.0

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vendor/phpunit/phpunit/src/Framework/Constraint/Callback.php

<?php

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

/**
 * Constraint that evaluates against a specified closure.
 */
class PHPUnit_Framework_Constraint_Callback extends PHPUnit_Framework_Constraint {
  private $callback;

  /**
   * @param  callable                    $callback
   * @throws PHPUnit_Framework_Exception
   */
  public function __construct($callback) {
    if (!is_callable($callback)) {
      throw PHPUnit_Util_InvalidArgumentHelper::factory(1, 'callable');
    }
    parent::__construct();
    $this->callback = $callback;
  }

  /**
   * Evaluates the constraint for parameter $value. Returns true if the
   * constraint is met, false otherwise.
   *
   * @param  mixed $other Value or object to evaluate.
   * @return bool
   */
  protected function matches($other) {
    return call_user_func($this->callback, $other);
  }

  /**
   * Returns a string representation of the constraint.
   *
   * @return string
   */
  public function toString() {
    return 'is accepted by specified callback';
  }

}

Classes

Name	Description
PHPUnit_Framework_Constraint_Callback	Constraint that evaluates against a specified closure.