public function testCheck() {
		$set = array('My Index 1' => array(
			'First' => 'The first item'
		));
		$result = Set::check($set, 'My Index 1.First');
		$this->assertTrue($result);

		$this->assertTrue(Set::check($set, 'My Index 1'));
		$this->assertTrue(Set::check($set, array()));

		$set = array('My Index 1' => array('First' => array('Second' => array('Third' => array(
			'Fourth' => 'Heavy. Nesting.'
		)))));
		$this->assertTrue(Set::check($set, 'My Index 1.First.Second'));
		$this->assertTrue(Set::check($set, 'My Index 1.First.Second.Third'));
		$this->assertTrue(Set::check($set, 'My Index 1.First.Second.Third.Fourth'));
		$this->assertFalse(Set::check($set, 'My Index 1.First.Seconds.Third.Fourth'));
	}