symfony/tests/unit/Symfony/Components/OutputEscaper/SafeTest.php

<?php

/*
 * This file is part of the symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

require_once __DIR__.'/../../../bootstrap.php';

use Symfony\Components\OutputEscaper\Safe;

$t = new LimeTest(13);

// ->getValue()
$t->diag('->getValue()');
$safe = new Safe('foo');
$t->is($safe->getValue(), 'foo', '->getValue() returns the embedded value');

// ->__set() ->__get()
$t->diag('->__set() ->__get()');

class TestClass1
{
  public $foo = 'bar';
}

$safe = new Safe(new TestClass1());

$t->is($safe->foo, 'bar', '->__get() returns the object parameter');
$safe->foo = 'baz';
$t->is($safe->foo, 'baz', '->__set() sets the object parameter');

// ->__call()
$t->diag('->__call()');

class TestClass2
{
  public function doSomething()
  {
    return 'ok';
  }
}

$safe = new Safe(new TestClass2());
$t->is($safe->doSomething(), 'ok', '->__call() invokes the embedded method');

// ->__isset() ->__unset()
$t->diag('->__isset() ->__unset()');

class TestClass3
{
  public
    $boolValue = true,
    $nullValue = null;
}

$safe = new Safe(new TestClass3());

$t->is(isset($safe->boolValue), true, '->__isset() returns true if the property is not null');
$t->is(isset($safe->nullValue), false, '->__isset() returns false if the property is null');
$t->is(isset($safe->undefinedValue), false, '->__isset() returns false if the property does not exist');

unset($safe->boolValue);
$t->is(isset($safe->boolValue), false, '->__unset() unsets the embedded property');

// Iterator
$t->diag('Iterator');

$input = array('one' => 1, 'two' => 2, 'three' => 3, 'children' => array(1, 2, 3));
$output = array();

$safe = new Safe($input);
foreach ($safe as $key => $value)
{
  $output[$key] = $value;
}
$t->same($output, $input, '"Iterator" implementation imitates an array');

// ArrayAccess
$t->diag('ArrayAccess');

$safe = new Safe(array('foo' => 'bar'));

$t->is($safe['foo'], 'bar', '"ArrayAccess" implementation returns a value from the embedded array');
$safe['foo'] = 'baz';
$t->is($safe['foo'], 'baz', '"ArrayAccess" implementation sets a value on the embedded array');
$t->is(isset($safe['foo']), true, '"ArrayAccess" checks if a value is set on the embedded array');
unset($safe['foo']);
$t->is(isset($safe['foo']), false, '"ArrayAccess" unsets a value on the embedded array');