1<?php
2
3/*
4 * This file is part of the Prophecy.
5 * (c) Konstantin Kudryashov <ever.zet@gmail.com>
6 *     Marcello Duarte <marcello.duarte@gmail.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Prophecy\Prediction;
13
14use Prophecy\Call\Call;
15use Prophecy\Prophecy\ObjectProphecy;
16use Prophecy\Prophecy\MethodProphecy;
17use Prophecy\Exception\InvalidArgumentException;
18use Closure;
19
20/**
21 * Callback prediction.
22 *
23 * @author Konstantin Kudryashov <ever.zet@gmail.com>
24 */
25class CallbackPrediction implements PredictionInterface
26{
27    private $callback;
28
29    /**
30     * Initializes callback prediction.
31     *
32     * @param callable $callback Custom callback
33     *
34     * @throws \Prophecy\Exception\InvalidArgumentException
35     */
36    public function __construct($callback)
37    {
38        if (!is_callable($callback)) {
39            throw new InvalidArgumentException(sprintf(
40                'Callable expected as an argument to CallbackPrediction, but got %s.',
41                gettype($callback)
42            ));
43        }
44
45        $this->callback = $callback;
46    }
47
48    /**
49     * Executes preset callback.
50     *
51     * @param Call[]         $calls
52     * @param ObjectProphecy $object
53     * @param MethodProphecy $method
54     */
55    public function check(array $calls, ObjectProphecy $object, MethodProphecy $method)
56    {
57        $callback = $this->callback;
58
59        if ($callback instanceof Closure && method_exists('Closure', 'bind')) {
60            $callback = Closure::bind($callback, $object);
61        }
62
63        call_user_func($callback, $calls, $object, $method);
64    }
65}
66