public function testExtract()
{
$a = array(array('Article' => array('id' => '1', 'user_id' => '1', 'title' => 'First Article', 'body' => 'First Article Body', 'published' => 'Y', 'created' => '2007-03-18 10:39:23', 'updated' => '2007-03-18 10:41:31'), 'User' => array('id' => '1', 'user' => 'mariano', 'password' => '5f4dcc3b5aa765d61d8327deb882cf99', 'created' => '2007-03-17 01:16:23', 'updated' => '2007-03-17 01:18:31'), 'Comment' => array(array('id' => '1', 'article_id' => '1', 'user_id' => '2', 'comment' => 'First Comment for First Article', 'published' => 'Y', 'created' => '2007-03-18 10:45:23', 'updated' => '2007-03-18 10:47:31'), array('id' => '2', 'article_id' => '1', 'user_id' => '4', 'comment' => 'Second Comment for First Article', 'published' => 'Y', 'created' => '2007-03-18 10:47:23', 'updated' => '2007-03-18 10:49:31')), 'Tag' => array(array('id' => '1', 'tag' => 'tag1', 'created' => '2007-03-18 12:22:23', 'updated' => '2007-03-18 12:24:31'), array('id' => '2', 'tag' => 'tag2', 'created' => '2007-03-18 12:24:23', 'updated' => '2007-03-18 12:26:31')), 'Deep' => array('Nesting' => array('test' => array(1 => 'foo', 2 => array('and' => array('more' => 'stuff')))))), array('Article' => array('id' => '3', 'user_id' => '1', 'title' => 'Third Article', 'body' => 'Third Article Body', 'published' => 'Y', 'created' => '2007-03-18 10:43:23', 'updated' => '2007-03-18 10:45:31'), 'User' => array('id' => '2', 'user' => 'mariano', 'password' => '5f4dcc3b5aa765d61d8327deb882cf99', 'created' => '2007-03-17 01:16:23', 'updated' => '2007-03-17 01:18:31'), 'Comment' => array(), 'Tag' => array()), array('Article' => array('id' => '3', 'user_id' => '1', 'title' => 'Third Article', 'body' => 'Third Article Body', 'published' => 'Y', 'created' => '2007-03-18 10:43:23', 'updated' => '2007-03-18 10:45:31'), 'User' => array('id' => '3', 'user' => 'mariano', 'password' => '5f4dcc3b5aa765d61d8327deb882cf99', 'created' => '2007-03-17 01:16:23', 'updated' => '2007-03-17 01:18:31'), 'Comment' => array(), 'Tag' => array()), array('Article' => array('id' => '3', 'user_id' => '1', 'title' => 'Third Article', 'body' => 'Third Article Body', 'published' => 'Y', 'created' => '2007-03-18 10:43:23', 'updated' => '2007-03-18 10:45:31'), 'User' => array('id' => '4', 'user' => 'mariano', 'password' => '5f4dcc3b5aa765d61d8327deb882cf99', 'created' => '2007-03-17 01:16:23', 'updated' => '2007-03-17 01:18:31'), 'Comment' => array(), 'Tag' => array()), array('Article' => array('id' => '3', 'user_id' => '1', 'title' => 'Third Article', 'body' => 'Third Article Body', 'published' => 'Y', 'created' => '2007-03-18 10:43:23', 'updated' => '2007-03-18 10:45:31'), 'User' => array('id' => '5', 'user' => 'mariano', 'password' => '5f4dcc3b5aa765d61d8327deb882cf99', 'created' => '2007-03-17 01:16:23', 'updated' => '2007-03-17 01:18:31'), 'Comment' => array(), 'Tag' => array()));
$b = array('Deep' => $a[0]['Deep']);
$c = array(array('a' => array('I' => array('a' => 1))), array('a' => array(2)), array('a' => array('II' => array('a' => 3, 'III' => array('a' => array('foo' => 4))))));
$expected = array(array('a' => $c[2]['a']));
$result = Set::extract($c, '/a/II[a=3]/..');
$this->assertEqual($expected, $result);
$expected = array(1, 2, 3, 4, 5);
$result = Set::extract($a, '/User/id');
$this->assertEqual($expected, $result);
$expected = array(1, 2, 3, 4, 5);
$result = Set::extract($a, '/User/id');
$this->assertEqual($expected, $result);
$expected = array(array('id' => 1), array('id' => 2), array('id' => 3), array('id' => 4), array('id' => 5));
$result = Set::extract($a, '/User/id', array('flatten' => false));
$this->assertEqual($expected, $result);
$expected = array(array('test' => $a[0]['Deep']['Nesting']['test']));
$this->assertEqual(Set::extract($a, '/Deep/Nesting/test'), $expected);
$this->assertEqual(Set::extract($b, '/Deep/Nesting/test'), $expected);
$expected = array(array('test' => $a[0]['Deep']['Nesting']['test']));
$result = Set::extract($a, '/Deep/Nesting/test/1/..');
$this->assertEqual($expected, $result);
$expected = array(array('test' => $a[0]['Deep']['Nesting']['test']));
$result = Set::extract($a, '/Deep/Nesting/test/2/and/../..');
$this->assertEqual($expected, $result);
$expected = array(array('test' => $a[0]['Deep']['Nesting']['test']));
$result = Set::extract($a, '/Deep/Nesting/test/2/../../../Nesting/test/2/..');
$this->assertEqual($expected, $result);
$expected = array(2);
$result = Set::extract($a, '/User[2]/id');
$this->assertEqual($expected, $result);
$expected = array(4, 5);
$result = Set::extract($a, '/User[id>3]/id');
$this->assertEqual($expected, $result);
$expected = array(2, 3);
$result = Set::extract($a, '/User[id>1][id<=3]/id');
$this->assertEqual($expected, $result);
$expected = array(array('I'), array('II'));
$result = Set::extract($c, '/a/@*');
$this->assertEqual($expected, $result);
}