public function testLookup() {
		$expected = 'zh_Hans_HK';
		$result = Locale::lookup(
			array('zh_Hans_REVISED', 'zh_Hans_HK', 'zh', 'zh_Hans'),
			'zh_Hans_HK_REVISED'
		);
		$this->assertEqual($expected, $result);

		$expected = 'zh_Hans_HK';
		$result = Locale::lookup(
			array('zh', 'zh_Hans_REVISED', 'zh_Hans_HK', 'zh_Hans'),
			'zh_Hans_HK_REVISED'
		);
		$this->assertEqual($expected, $result);
	}