public function testCanonicalize() {
		$this->assertEqual('en_US', Locale::canonicalize('en-US'));
		$this->assertEqual('en_US_POSIX', Locale::canonicalize('en_US-posiX'));
		$this->assertEqual('kpe_GN', Locale::canonicalize('kpe_gn'));
		$this->assertEqual('zh_Hans_HK_REVISED', Locale::canonicalize('ZH-HANS-HK_REVISED'));
	}