1: <?php
2:
3: /**
4: * This file is part of expect package.
5: *
6: * (c) Noritaka Horio <holy.shared.design@gmail.com>
7: *
8: * This source file is subject to the MIT license that is bundled
9: * with this source code in the file LICENSE.
10: */
11: namespace expect\matcher;
12:
13: /**
14: * Verify the length of the value is 0.
15: *
16: * <code>
17: * $matcher = new ToBeEmpty();
18: * $matcher->match(""); //return true
19: *
20: * $matcher->match("fo"); //return false
21: * $matcher->match([ 1, 2 ]); //return false
22: * $matcher->match(new ArrayIterator([ 1, 2 ])); //return false
23: * <code>
24: *
25: * @author Noritaka Horio <holy.shared.design@gmail.com>
26: * @copyright Noritaka Horio <holy.shared.design@gmail.com>
27: */
28: final class ToBeEmpty implements ReportableMatcher
29: {
30: use LengthMatcherDelegatable;
31:
32: /**
33: * Create a new matcher.
34: */
35: public function __construct()
36: {
37: $this->lengthMatcher = new ToHaveLength(0);
38: }
39: }
40: